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At present, pvc membrane welding machine has been widely promoted in a number of plastic welding industry. Various welding defects are inevitable in the process of use. In this article, it mainly analyzes how to solve the problems in debugging or welding.

1.Crush and bruise

Pressing injury and abrasion are common problems in the process of pvc membrane welding machine. Sometimes it's not so serious, and it just gets white or marks. When you encounter such problems, the first thing to do is to ensure that the location of the tooling is not out of alignment. First let off the air of the cylinder, press down the welding head, and carefully observe whether the welding head position of the scratch is correct. If the welding head is in the correct position, or if the abrasion or compression occurs on the support (or lower cover), then it is necessary to observe whether there is any interference between the tooling and the product. If it is old tooling, it is suggested to clean the tooling with alcohol at this time. If it is a new fixture, lightly rub the scratch (especially at the bottom of the step) with sandpaper to prevent burrs. In addition, observe whether the air pressure of the cylinder is too large during welding, whether the film of the pad has not been changed for a long time during welding, or whether there are foreign bodies stuck on the film.

If the above work is done, the pressing injury still exists, it can be basically judged as the interference of tooling. At this time, the mold shall be modified according to the size and location of the pressing injury:

(1)slight pressing injury. File the sharp Angle of the tool at the corresponding place of the tool, blunt the sharp Angle of the tool, and then use sandpaper polishing;

(2)the pressing injury is serious, but there is no welding rib at the corresponding place. Rub off the interference part of the fixture with an air abrasive rod (be careful not to touch other parts, especially the root part of the air abrasive rod, which may be rubbed off other places without being noticed). After grinding, make it smooth with whetstone and buff with sandpaper;

(3)severe crush injury. If there is welding rib in the corresponding place, or if there is serious pressing injury and the interference part is very large, please consult with the designer. Have the processing center dealing with the modified drawing and contact the relevant personnel to confirm whether there is a problem with the injection molding, or whether to improve the product structure.

2.Material overflow

If there is any overflow in the welding process of pvc membrane welding machine, do not debug or modify the welding parameters right away. First measure the size after welding, and compare it with the normal value. Adjust according to the difference.

3.Insufficient welding strength

If it is old tooling, first stick the product on the welding head, observe whether the gap between the product and the welding head is too large in the weak welding place, to determine whether the welding head is worn; if it is a new tool, please scan it with the welding head, observe its frequency, power and curve, and make sure there is no problem with the welding head.

We are one of the professional rf welding supplies, we produce pvc membrane machine, warmly waiting for your order!

Well drilling rig is a kind of mechanical drill machine equipment used to drill well. Its use has greatly improved the efficiency of drilling water wells, but if there is no in-depth understanding of the common types and characteristics of the equipment before practical application, it will be difficult to give full play to the use value of the drill machine equipment.

The essence of well drilling is to try to solve the problems of breaking rocks and discharging cuttings, protecting the well wall and deepening drilling. The well drilling rig should complete the operations of drilling water well, downhole tubes, well flushing, etc.

Through long-term production practice and scientific research, the well drilling methods can be divided into two kinds of drilling methods with industrial practical value: impact method and rotation method. From these two methods, a variety of rig models have been developed.

According to the classification of drilling methods, well drilling rigs can be divided into three types: percussion drilling rig, rotary drilling rig and mixed drilling rig.

According to the classification of circulation mode, it can be divided into four types: mud directional circulation drilling rig, mud reverse circulation drilling rig, conventional air drilling rig and air reverse circulation drilling rig.

According to the drilling depth, it can be divided into three types: shallow drilling rig, medium deep drilling rig and deep drilling rig.

According to the type of assembly, it can be divided into three types: truck mounted well drilling rig, trailer well drilling rig and bulk well drilling rig.

We have a strong technical force, sophisticated modern equipment and rich experience in production and construction. As a drilling equipment company, we provide one-stop service for drilling, drilling engineering, equipment supply, supporting installation, commissioning and after-sales service.

Leading high and new technology in China: We start the service of drilling to rig manufacturing industry. It is a company that sells multi-functional drilling rig with hydraulic hole, anchoring drilling machine, well drilling rig, all hydraulic integrated drilling rig and a series of heavy driving machines in China.

Excellent technical talents: As a professional drilling tools company, it focuses on hot spring well and other new products, new technologies, new processes and new equipment, providing a strong guarantee for follow-up services.

Ceramic membrane has high separation efficiency and good chemical stability, which can be used for separation, clarification, purification, and so on. Due to its good performance, ceramic membrane is widely used in the processing of food and beverage. Ceramic membrane filtration can be used for sweetener's concentration and purification. It can also be used to produce concentrated milk proteins and isolated milk proteins. Crossflow filtration is widely used in purify liquids, such as wine, fruit and vegetable juice. Membrane separation technology is used to eliminate bacteria in milk. Ceramic membrane is also extensively used in the processing of flavoring and seasoning, natural herb extract, enzyme and so on. Ceramic membrane can greatly satisfy your needs in food and beverage processing!

Sweetener

Membrane filtration and continuous ion exchange technology: reform sweetener production process.

Wine

Crossflow membrane filtration for wine clarification solution is an ideal way for wineries.

Fruit And Vegetable Juice

Improving quality and cutting down costs by membrane filtration are your wise choice.

Dairy

Producing quality dairy products with less nutrients loss and long shelf life is your need.

Flavoring And Seasoning

Ceramic membrane technology in food processing is an effective, advanced and clean clarification solution.

Natural Herb Extract

Ceramic membrane and organic membrane combination process are becoming a preferred process.

Enzyme

Our ceramic membrane filtration system is to enhance quality and drive down costs.

Non-Alcohol Beer And No Alcohol Wine

The latest extraction technology for non-alcoholic and non-alcoholic wines.

Founded in 1997, Jiangsu Jiuwu Hi Tech Co. Ltd. is one of the most professional and reliable ceramic membrane factory. Owning n more than 50 patents regarding ceramic membranes, Jiuwu Hi-Tech supplies a series of high-quality ceramic membrane of microfiltration, ultrafiltration and nanofiltration, ceramic membrane module, membrane testing machine and professional ceramic membrane filtration system for industrial use, including solid-liquid separation in food and beverage, biotechnology, water treatment, chemcial industry, etc.

Jiuwu Hi-Tech is working to provide clients with the best quality ceramic membrane products and services.

Pressure in oil pipe. The uniformly distributed claws on the circumference surface of the alloy anchor body extend outward under the hydraulic pressure generated by the internal and external pressure difference, and the anchorage teeth on the external surface of the claws are embedded in the casing wall, which limits the up and down movement of tool, and realizes the anchoring. After the pressure difference between the inside and outside of the tool is eliminated, the anchor claw is reset under the elastic force of the internal spring between the baffle plate and the anchor claw and the anchoring is released.

Anchor the pipe, avoiding axial displacement of downhole tools. It is used for anchoring downhole operation pipes, such as hydraulic fracturing of oil (gas) wells, injection stimulation of alloy anchor wells, hydraulic sandblasting, cutting (or sandblasting perforation).

Precautions

1. Before the alloy anchor is going down to the well, it must be checked carefully on the ground. It can only be put into the well after all the inspection contents are qualified;

① Open the box to check the certificate and record the tool number;

② Check whether the fastening screws on the baffle are loose, and ensure that all screws are tightened;

③ Check whether the anchor claw is in the initial state. It is forbidden to be put into the well if the pressing plate or the anchor claw is higher than the surface of the body;

④ The minimum drift diameter must be followed before going down to the well, and it can only be put into the well after it is qualified.

2. The liquid, material, pipe and tools entering the well shall be clean and meet the quality standard;
3. When putting the pipe, the operation shall be stable. It is strictly prohibited to lift and place the string violently. It is strictly prohibited to stop or slide the drill.
4. The alloy anchor with sand control structure should be used in the fracturing reconstruction ofalloy anchor well.

We have a strong technical force, sophisticated modern equipment and rich experience in production and construction. As a drilling tools suppliers, we provide one-stop service for drilling, drilling engineering, equipment supply, supporting installation, commissioning and after-sales service.

Leading high and new technology in China: We start the service of drilling to rig manufacturing industry. It is a company that sells multi-functional drilling rig with hydraulic hole, anchoring drilling machine, well drilling rig, all hydraulic integrated drilling rig and a series of heavy driving machines in China.

Excellent technical talents: As a professional ABT drilling equipment company, it focuses on hot spring well and other new products, new technologies, new processes and new equipment, providing a strong guarantee for follow-up services.

CHEESE, MILK, WHEY AND FOOD PROTEIN

Concentrated milk proteins (MPCs) and isolated milk proteins (MPIs) are produced by ceramic dairy membrane filtration system and their dairy proteins are separated from fresh skim milk. They combine rich calcium with good thermal stability and refreshing mouthfeel. They are rich in casein and whey protein in the same proportions as skim milk.

Milk protein concentrates are widely used and are ideal for cheese products, artificial products, dairy drinks, infant nutrition, medical nutrition products (enteral foods), weight management products, powdered dietary supplements and sports nutrition products.

CHEESE,-MILK,-WHEY-AND-FOOD-PROTEIN

In general, milk protein concentrates provide a concentrated source of protein for sensory and functional properties in the final application process to meet nutritional value. Condensed milk protein serves as an alternative to whole milk powder (WMP), skim milk powder (SMP) and other milk powders, providing the same protein, or as a non-fat milk solid (MSNF). Compared with ordinary milk or skim milk powder, concentrated milk protein with high protein, low lactose characteristics.

The traditional ultra-high temperature sterilization process will destroy many of the active nutrients in milk but low-temperature ceramic membrane filtration technology completely subvert the traditional high-temperature sterilization of milk. The process of milk filtration and clarification is to make natural fresh milk fluid through dairy ceramic membrane technology and avoid heat denaturation of the protein, fully retain 99% of active immunoglobulin and 95% of lactoferrin and a variety of natural vitamins, milk calcium, minerals and trace elements and other nutrients in the state of low temperature and ensuring safety at the same time.

 BACTERIAL REMOVAL FROM MILK

Like many foods, milk and its derivatives provide a suitable environment for spoilage microorganisms. Therefore, pretreatment and temperature, time parameters must be selected to control the growth of microorganisms. Heat treatment and centrifugal sterilization are the traditional methods of reducing total number of bacteria in milk and dairy products, but these methods have their own advantages and disadvantages. Traditional techniques to remove bacteria in milk have more steps and high cost, short life, environmental pollution, inconvenient cleaning. However, the ceramic membrane filtration of milk can well solve these problems.

Membrane separation technology is used to eliminate bacteria in milk, which is based on the fact that the membrane has different material retention rates in various components of milk, including bacteria and spores. Bacteria can make the rejection rate of more than 99%, while casein transmittance can reach about 99%.

Membrane separation technology has a good membrane flux and sterilization effect, can completely remove bacteria in liquid milk, at the same time the flavor of milk has also been improved.

Membrane separation technology for cold sterilization is the method of fresh milk is  preheated to about 50 degrees and skim milk is got through milk cream separation machine. Then on the same day fresh skim milk makes filtration of milk sterilization, combining with high-temperature instantaneous sterilization technology, to access to high quality dairy products. Such low-temperature sterilization retains a good flavor and nutrients, rich aroma.

Moreover, membrane cleaning is much easier to regenerate, so that membrane fouling can be controlled and a higher and more stable membrane flux can be maintained. The use of membrane separation technology for cold sterilization of milk, functional components can be retained during the re-separation activity, is an ideal method of sterilization of milk.

 BACTERIAL REMOVAL FROM WHEY CASEIM

Casein is the basic component df ordinary cheese. In the cheese making process, casein is precipitated by the action of rennet enzymes,and a coagulum is formed consisting of casein,whey proteins,fat,lactose and the minerals of the milk.

Membrane technology in dairy industry is used to eliminate bacteria in milk, which is based on the fact that the membrane has different material retention rates in various components of milk, including bacteria and spores.Bacteria can make the rejection rate of more than 99%, while casein transmittance can reach about 99%.

Founded in 1997, Jiangsu Jiuwu Hi Tech Co. Ltd. is one of the most professional and reliable ceramic membrane manufacturer in China. Owning n more than 50 patents regarding ceramic membranes, Jiuwu Hi-Tech supplies a series of high-quality ceramic membrane of microfiltration, ultrafiltration and nanofiltration, ceramic membrane module, membrane testing machine and professional ceramic membrane filtration system for industrial use, including solid-liquid separation in food and beverage, biotechnology, water treatment, chemcial industry, etc.

Jiuwu Hi-Tech is working to provide clients with the best quality ceramic membrane products and services.

Organic Membrane Filtration System

OMS skid-mounted (Organic Membrane Filters System) refers to a form of overall combination of equipment frame and whole equipment. Organic membrane system means that a group of equipment is fixed on the chassis and can be used after moving. It is not necessary to install valves and instruments in the middle, and it can be used by directly connecting the pipelines. OMS skid-mounted device is widely used in reverse osmosis (RO), Nanofiltration (NF), Ultrafiltration (UF) and Microfiltration (MF). OMS skid-mounted device is customized design to evaluate the performance applied in RO, NF, UF& MF.

Air leg rock drillis a kind of high efficiency rock drill. It is widely used in rock tunnel excavation and various rock drilling operations to drill and blast holes. It is an important machine in rock engineering such as mining, railway, transportation, water conservancy construction, etc.

The air leg rock drill is widely used for drilling horizontal or inclined holes on medium hard rocks or hard (F = 8 ~ 18) rocks, with a drilling depth of up to 5M. It can be installed on the drilling car or drilling frame to work.

Precautions

1. The machine is filled with antirust oil before leaving the factory. It should be removed and cleaned before use. When reassembling, the matching surface should be coated with lubricating oil before use.
2. When connecting the air pipe, the sundries in the pipe must be blown out to avoid damage to the parts in the sundry machine.
3. Before starting the machine, it is necessary to carefully check whether the control mechanism and running parts are assembled correctly and reliably. Fill the oiler with lubricating oil and adjust the oil quantity.
4. When the machine finishes work, cut off the water source first and then operate it gently for a while, blow out the residual water drop in the machine to prevent the parts from rusting.
5. Pay attention to regular maintenance and repair of commonly used machines. Check at least once a week, remove the dirt in the machine, and replace the damaged and invalid parts.
6. If the used machine is stored for a long time, it must be disassembled, cleaned, degreased and placed in a cool and dry place.

We have a strong technical force, sophisticated modern equipment and rich experience in production and construction. As a mining drilling equipment manufacturers, we provide one-stop service for drilling, drilling engineering, equipment supply, supporting installation, commissioning and after-sales service.

Leading high and new technology in China: We start the service of drilling to rig manufacturing industry. It is a company that sells multi-functional drilling rig with hydraulic hole, anchoring drilling machine, well drilling rig, all hydraulic integrated drilling rig and a series of heavy driving machines in China.

Excellent technical talents: As a professional drilling equipment company, it focuses on hot spring well and other new products, new technologies, new processes and new equipment, providing a strong guarantee for follow-up services.

ANBIT has all kinds of drilling equipment for sale, providing powerful assistance for safe and efficient drilling.

Hammer machine speed is generally much higher than that of hydraulic impactor drilling, but it needs to be equipped with an air compressor with greater capacity, which consumes more fuel and has noise and dust pollution. Drilling depth is greatly affected by groundwater level and water volume.

Membrane technology in the chemical industry is applied to brine filtration, natural rubber, polysolicon cutting fluid recovery and lithium recovery from salt lake brines. It can be used in bio-production clarification, edible liquid salt purification, nanofiltration system sulfate removal, primary brine purification and so on. The advantage is that it is environmentally friendly and cost saving. In natural rubber processing, the use of ceramic membrane filtration consumes less quantities of acid and produces less harmful pollutants to the environment. During the process of polysolicon cutting fluid recovery, you only need to spend low operating costs but will receive fast return on investment by using ceramic membrane equipment technology. Besides, the high-precision anti-pollution ultrafiltration membrane is used to purify the brine water, which can remove all solid suspended matter in the brine. With contact equipment, the process is simple and requires no human intervention in the operation. The application of ceramic membrane will help you save costs but gain more profits!

Brine Filtration

Brine Filtration

JIUWU is the first one to use ceramic membrane in the primary brine purification industry.

MORE

Natural Rubber

Natural Rubber

JIUWU offers a safer, cheaper and greener option to produce skim rubber products of high quality.

MORE

Polysilicon Cutting Fluid Recovery

Polysilicon Cutting Fluid Recovery

Ceramic membrane can treat the waste liquid silicon produced in the solar energy production process.

MORE

Lithium Recovery From Salt Lake Brines

Lithium Recovery From Salt Lake Brines

The membrane equipment for the lithium yield can reach 80% which is at the leading level.

Founded in 1997, Jiangsu Jiuwu Hi Tech Co. Ltd. is one of the most professional and reliable ceramic China membrane manufacturer . Owning n more than 50 patents regarding ceramic membranes, Jiuwu Hi-Tech supplies a series of high-quality ceramic membrane of microfiltration, ultrafiltration and nanofiltration, ceramic membrane module, membrane testing machine and professional ceramic membrane filtration system for industrial use, including solid-liquid separation in food and beverage, biotechnology, water treatment, chemcial industry, etc.

Jiuwu Hi-Tech is working to provide clients with the best quality ceramic membrane products and services.

Waterproof flexible membrane switches  or more precisely a standard membrane switch assembly is comprised of several flexible layers that make up a complete switch package. This assembly can have as few as one active area (key or button) to several dozen active areas. A membrane switch and panel is an interface between man and machine, which enables an operator to communicate with equipment, instrumentation, or machinery. Subsequently, this allows the operator to communicate with the device, issuing commands and/or performing other operations. The operator presses the membrane control panel when he or she wants to control the device.

Construction of Membrane Switch

Graphic Overlay – PET/PC is usually the overlay material of choice due to its fantastic chemical resistance and flex property. We are professional membrane switch company in China.Komkey offers microwave membrane keypad customized design services such as digital printing, screen-printing, or apply both methods to ensure you get the right colors, textures and finish your design requirements.

Adhesive Overlay – This adhesive layer sticks the membrane overlay to the top circuit layer, and is usually an acrylic adhesive. The material is the same as the fourth layer. Only the thickness is maybe different according to the actual situation.

Top Circuit Layer – The material of this layer is specific. It is a 0.1mm thickness thermostable PET film printed with conductive silver ink and also dielectric oil, which used for fastening metal domes.

Circuit Spacer – This layer separates the top circuit from the bottom circuit so that the touch membrane remains normally break until the membrane switch keypad is pressed. The circuit spacer is a polyester spacer with adhesive on both sides.

Lower Circuit Layer – This layer is a 0.1mm-0.25mm thickness thermostable PET film printed with conductive silver ink and also dielectric oil. This layer terminates as a flexible tail that serves as an interconnector to controller PCBs or other IC.

Rear Adhesive – This adhesive layer bonds the entire membrane switch to the product surface, housing, or to a rigid support panel. Komkey, a membrane switch keypad supplier, can use the proper adhesive type and thickness to bond your membrane switch to your equipment.    

Membrane Switch Specification

Mechanical Properties:

Life Expectancy

Flat type ≥ 5 million times,

Tactile type ≥ 1 million times

Operation Force Flat Type 57-284g ,Tactile Type 170-397g

Dome Rebound Time ≤6ms

Tail Bending Performance ≤180 °

Switch Stroke Flat 0.1~0.5mm,Tactile 0.6~1.5mm

Vibration 20G's max.

Thickness 0.7~1.5 mm

Electrical Properties:

Rated Voltage ≤50V DC

Rated Current ≤ 100mA

Operating Power ≤1W

Insulation Resistance ≥100MΩ (250V DC)

Loop Resistance

10Ω ~ 2kΩ

(Depending on the design)

Contact Resistance

0.5 ~ 5Ω

(Depending on wire length and the materials)

Wire Lead Resistance <1Ω/cm

Base Material Voltage Withstand 1500V DC

Environmental Properties:

Operation Temperature -40°C to +80°C (-40°to 176°F)

Storage Temperature -40°C to +85°C (-40°to 185°F)

Atmospheric Pressure 86 ~ 106 kPa

Humidity +40°C, 90%~95%RH for 240 Hours

Why Choose Our Membrane Switch?

Our Membrane Switch Pad Advantages

Beautiful appearance, Variety color printing.

Small size, light in weight, good tactility, Long life span.

moisture-proof, dustproof, waterproof, anti-corrosion, and erosion of harmful gases proof.

Easy to operate, intuitive, safe and reliable

Cost-effective, convenient installation

Komkey is one of the reliable membrane switches manufacturers offering custom membrane switch panel design service  

Customized specification is available, the Smaller volume can be accepted.

Customized logo/Brand/Contact way can be printed in the overlay for advertisement.

If you wan to buy membrane switch,please contact us.

Ultrafiltration (UF) is a variety of membrane filtration in which forces, such as pressure or concentration gradients, cause separation through the semi-permeable membrane. High molecular weight suspended solids and solutes remain in the so-called retentate while water and low molecular weight solutes pass through the membrane in the permeate (filtrate). The pore size of the ultrafiltration membrane is in the range of 0.01μm ~ 0.05μm, suitable for the separation, concentration and purification of macromolecules and small molecules.

Application of Ceramic ultrafiltration Membrane

UF technology can be used to remove particulates and macromolecules from raw water to produce potable water. It has been used to replace the existing secondary (coagulation, flocculation, sedimentation) and tertiary filtration (sand filtration and chlorination) systems used in water treatment plants or as stand-alone systems in isolated areas with a growing population.

When treating water containing highly suspended solids, primary (screening, flotation and filtration) and some secondary treatments are often used as a pretreatment stage to incorporate ultrafiltration into the process.

When water recovery is simple, very little processing is often required. However, when more in-depth processing is required, industry standard procedures include the use of UF membrane technology, which means removing the physical solids from the water by passing them through a semipermeable membrane. With ultrafiltration, the solids are primarily captured by the filter and discarded.

Circulating water can also be used in a variety of industrial applications including water supply to boilers or cooling towers, pH control, cleaning equipment, hard beds and vehicles, fire fighting, rinsing or process water for manufacturing industrial lines, toilet flushing, dust control, construction activities Mix with concrete.

Ultrafiltration is often used to pre-treat surface water, seawater and bioprocessed municipal water upstream of reverse osmosis plants.

Industries that consume large amounts of water or discharge highly toxic wastewater may use ultrafiltration to recover water.

These include chemicals, steel, plastics and resins, paper and pulp, pharmaceutical and food and beverage industries, including soft drinks and canned foods, and electricity, water and wastewater treatment plants.

Ultrafiltration is used to recycle flow or add value to later products and more. In many cases ultrafiltration (UF) is used for prefiltration in reverse-osmosis plants to protect the reverse-osmosis process. Ultrafiltration is an effective means of reducing the silt density index of water and removing particulates that can foul reverse osmosis membranes.

Features of Ultrafiltration Membrane

Ultrafiltration processes are preferred over traditional treatment methods for the following reasons:

No chemicals required (aside from cleaning)

Constant product quality regardless of feed quality

Compact plant size

Capable of exceeding regulatory standards of water quality, achieving 90-100% pathogen removal.

JIUWU HI-TECH has many unique membrane applications and more than 50 Patents regarding ceramic membrane solution, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water.

In reverse osmosis, an applied pressure is used to overcome osmotic pressure, a colligative property, that is driven by chemical potential differences of the solvent, a thermodynamic parameter.

The reverse osmosis membrane technology can remove many types of dissolved and suspended species from water, including bacteria, and is used in both industrial processes and the production of potable water. The result is that the solute is retained on the pressurized side of the membrane and the pure solvent is allowed to pass to the other side. To be "selective", this membrane should not allow large molecules or ions through the pores (holes) but should allow smaller components of the solution (such as solvent molecules) to pass freely.

Advantages of ro membrane technology

1. Removes nonionic impurities and dissoved solids (i.e.organics,silica,bacteria)
2. Reduction of hazardous chemical storage and handling associated with ion exchange
3. Reductes loading on ion exchange systems:

Extends run lengths

Extends resin life

Reductions operating costs

Application range of reverse osmosis

Desalination

Dehydration

Concentration

Remove COD/BOD

JIUWU HI-TECH has many unique ceramic membrane applications and more than 50 Patents regarding jiuwu ceramic membranes, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Microfiltration (commonly abbreviated to MF) is a type of physical filtration process where a contaminated fluid is passed through a special pore-sized membrane to separate microorganisms and suspended particles from process liquid. MF membrane is commonly used in conjunction with various other separation processes such as ultrafiltration and reverse osmosis to provide a product stream which is free of undesired contaminants.

MF usually serves as a pre-treatment for other separation processes such as ultrafiltration, and a post-treatment for granular media filtration. The typical particle size used for microfiltration ranges from about 0.1 to 10 µm.In terms of approximate molecular weight these membranes can separate macromolecules of molecular weights generally less than 100,000 g/mol.

Applications range:

Remove suspended solid and reduce SS

Remove proteins, polysaccharides, pigments and other impurities

remove bacterial

Dehydration

Concentration

Reduces COD / BOD

JIUWU HI-TECH has many unique china membrane applications and more than 50 Patents regarding ceramic membranes, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Ceramic membrane manufactured by JIUWU HI-TECH is used for liquids separation in a cross-flow filtration way which is different from dead-end filtration.

Dead-end filtration means the fluids flow is vertical to the filter surface, and the retained particles rapidly solidify on the surface of the filter to form a so-called filter cake. The pores of the filter are clogged by the filter cake, and the filtration performance is greatly reduced in a short period of time.

Cross flow filtration means turbulence will happen on the surface of the membrane. Therefore, it allows the filtered material to form a filter cake on the filtering surface and keep the flow constant.

JIUWU HI-TECH has many unique membrane applications and more than 50 Patents regarding ceramic membranes, Organic membrane filters, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

In recent years, the wafer industry has developed rapidly, but at the same time, it also produces a large amount of wastewater. The production wastewater mainly comes from the cleaning process of the polysilicon ingot slicing process. The acid-containing wastewater is produced in the cleaning process after the surface treatment of the polycrystalline silicon ingot with the mixed acid. Since the surface treatment is a mixed acid of nitric acid + hydrofluoric acid, the main pollution in the washing wastewater is pH, fluoride, and nitrate. The organic wastewater is produced in the cleaning process of the sliced polycrystalline silicon wafer. Since the cutting fluid (the main component is polyethylene glycol) and the cut micro powder (the main component is silicon carbide) are used for slicing, the main pollutant in the cleaning wastewater is CODCr and SS.

Polysilicon cutting fluid is made up of polyethylene glycol as the main body and added with various additives. It has a suitable viscosity index, good fluidity, and thermal conductivity, and has good dispersion stability and suspension effect on silicon carbide micropowder. A large amount of waste liquid is generated after cutting, and the waste liquid contains a considerable amount of polycrystalline silicon powder, which has a certain recovery value. The polysilicon powder is recovered by the ceramic membrane separation technology, becoming the so-called cutting fluid recovery. And the site is clean and sanitary, which is in line with the national energy-saving and emission-reduction industry orientation.

Ceramic membrane equipment technology is advanced and mature, with low operating costs and fast return on investment.

Ceramic membrane filtration process can directly deal with the waste liquid containing silicon produced in the solar energy production process, collect silicon, reuse pure water and coolant.

The process can separate silicon powder and pure water, recover over 98% of the silicon powder, reuse more than 90% pure water,reuse about 50% of coolant and shaping agent , which can greatly reduce the load of the sewage station.

The process has the advantages of short process, simple operation, short payback period, and has become the preferred standard process for the benchmarking enterprises in the silicon chip industry.

JIUWU HI-TECH has many unique membrane applications and more than 50 Patents regarding jiuwu ceramic membranes, systems and process applications, ceramic membrane filters, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Standard discharge, reclaimed water reuse and zero effluent discharge

1. As for paper mill wastewater treatment, pulping wastewater is the most difficult wastewater to be treated in the papermaking industry. The organic pollutants and inorganic salts are high in content, complex in composition, high in hardness, high in costs. The technical staff of JIUWU work with experts from the Institute of Membrane Science and Technology of Nanjing Tech University and develop successfully membrane technology as the core of zero effluent discharge process or zld (zero liquid discharge).

2. Using the process of pretreatment, membrane integration, evaporation crystallization and other related processes turns waste into valuable and achieves the sewage recycle. The project forms a major technological breakthrough in the field of wastewater treatment of pulp and paper.

Application background

Industrial water prices continue to rise

Industrial water intake limit

Increased emission water quality standards (COD, TOC, etc)

Enforcement requirements for environmental protection and water reuse rate, etc.

Large demand for fresh water

Large amount of wastewater discharge

The composition of wastewater is complex, and the content of organic pollutants and inorganic salts is high.

Core advantage of process package

Independent research and development, Global First

Turn waste into treasure and realize 100% full reuse of wastewater

Multiple 10,000-ton demonstration projects

Reuse water, salt, and dry mud

The water quality of the produced water is good and meets the requirements for productive reuse.

zld (zero liquid discharge)

Case

Jiangsu Jiuwu Hitech Co., Ltd has done the largest zero liquid discharge project in paper pulp industry. The project is located in Japanese Oji Paper Co., Ltd. (OJI PAPER) in China, the scale of 40000m3/day of papermaking, pulp wastewater. Main processes include ozone-coupled biofilter (removing COD), the integrated membrane system of uf technology and reverse osmosis, electrodialysis (EDR) concentration system, MVR evaporation crystallization system. Through above-mentioned advanced processing system, the realization of wastewater recycling and zero liquid discharge. The clean water is supplied to the power plant desalination system and the production water system, waste salt is supplied to the Transportation Bureau to do snowmelt agent and chemical raw materials. The project which is the world's largest zero liquid discharge project in paper pulp industry has been stably operating for more than 3 years.

JIUWU HI-TECH has many unique membrane applications and more than 50 Patents regarding ceramic membrane solution, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Palm oil is not only the highest yielding cheap vegetable oil on the earth but also a safe raw material for edible oils and daily chemicals, and a raw material for biofuel.

As a raw material for edible vegetable oils, chemical raw materials and biofuel, palm oil has attracted worldwide attention in the process of ecological protection and industrial pollution. As a result, palm oil wastewater treatment also receives much attention.

Palm oil mill effluent (POME)is a yellow liquid with a unique unpleasant smell and comes from oil extraction, cleaning and washing process in the POME factory, which is featured with very high COD and BOD.

Due to its acidic nature (pH 3.4–5.2), high salt and suspended solids, oil and grease, the untreated discharge of POME can result in considerable environmental consequences.

Each ton of palm oil produced emits about 20 tons of high-concentration organic wastewater. When the high-concentration organic wastewater per ton is treated according to the current sewage pond treatment method, it is equivalent to emitting more than 210 million tons of carbon dioxide gas into the atmosphere every year. It's important to solve the problems in palm oil mill effluent treatment.

To achieve environmental requirements and economic challenges, the POME factories are trying to get efficient and return on the investment process.

JIUWU HI-TECH has made a lot of studies and many rich experiences for POME treatment since 2012.

JIUWU HI-TECH offers the solution for POME treatment with an integrated ceramic membrane technology which is a green, friendly environment, economic efficiency and has the following technical benefits:

No discharge of wastewater

Low capital investment ;

Low operation cost;

Oil is concentrated and water is recycled

After integrated process filtration, concentrate including surplus sludge from anaerobic and centrifuge is used as fertilizer for cattle farm and purified water can be used for recycling or the bolier feed water due to salts and organic compounds are removed.

JIUWU HI-TECH has many unique ceramic membrane applications and more than 50 Patents regarding jiuwu ceramic membranes, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Although batch processes are currently used, a number of more advanced techniques have been investigated in order to improve the process efficiency of organic acid fermentation. Promising every result must have been achieved using the tangential flow filtration in the continuous fermentation systems.

One of the main advantages of tangential flow filtration is that the higher biomass concentrations are possible because cells are continuously recycled back to the fermentor. A dense population of cells not only accelerates production of lactic acid but also minimizes contamination by foreign microorganisms. Thus high cell density continuous systems could increase the efficiency of lactic acid production. It can also be applied to nictric acid production.

Lactic acid fermentation broth on the main performance of the membrane fouling is

1. Gel polarization fouling of, membrane surface. Lactic acid fermentation broth by centrifuge coarse filters, except for a small amount of mycelium and solids, but also contains a lot of protein, sugar and easily carbonized material. During the membrane filtration process of lactic acid purification, these substances are easily deposited on the membrane surface and formed gel polarization fouling.

1. Membrane pore adsorption, crystallization pollution. Adding an excess of calcium carbonate is to adjust the system pH, in this way, the excess calcium carbonate is easily occurred crystallization within the hole and in the membrane surface. In the actual operation, the pipeline can easily generate a short temperature difference due to the solubility of calcium lactate which is very sensitive to temperature, so the calcium lactate is also vulnerable to precipitation surface or deposition within the membrane hole and in the membrane surface.

In order to remove impurities, ceramic membrane contamination mechanism in the process of lactic acid fermentation comes down to mycelium, protein, sugar and gel polarization pollution caused by carbonized material in the membrane surface of the and crystallization pollution of calcium carbonate - calcium lactate within the hole and membrane surface. Reasonable cleaning membrane procedure is

JIUWU HI-TECH has many unique china membrane applications and more than 50 Patents regarding ceramic membranes, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Natural rubber, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds, plus water.

Currently, rubber is harvested mainly in the form of the latex from the rubber tree or others. The latex is a sticky, milky colloid drawn off by making incisions in the bark and collecting the fluid in vessels in a process called "tapping". The latex then is refined into rubber ready for commercial processing. In major areas, latex is allowed to coagulate in the collection cup. The coagulated lumps are collected and processed into dry forms for marketing.

Natural rubber is used extensively in many applications and products, either alone or in combination with other materials. In most of its useful forms, it has a large stretch ratio and high resilience and is extremely waterproof.

Centrifuged latex is processed into final articles by dipping, extruding, and coating. Different articles have different physical and chemical requirements, which means that the latex used in their manufacture must be modified by the addition of a great variety of substances that give each "formulation" its unique characteristics.

These characteristics are well-specified and must be carefully controlled.

Skim latex is generated during natural rubber processing centrifuged into fresh latex to become concentrated latex. Skim latex is a raw material for producing skim rubber block according to the low content of rubber particles in the range of 4-8% DRC.

Traditionally, skim latex is treated with sulphuric acid to produce cheap, low-quality rubber products of 5% skim rubber content. Not only does this method consume large quantities of the acid, which results in high production cost, more importantly, causing harmful pollutants to the environment.

JIUWU offers a safer, cheaper and greener option to produce skim rubber products of high quality. Through ceramic membrane filtration system, the rubber content in recovered skim latex can be concentrated to more than 15%, the same value in natural rubber without any form of chemical treatment. At the same time, permeate can be recycled.

JIUWU HI-TECH has many unique membrane applications and more than 50 Patents regarding ceramic membranes, Organic membrane filters, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Degreasing process is a necessary step before any other processing in mechanical industry, in the steel industry and generally speaking in the transformation of raw materials.

Degreasing treatment is performed with aid of an aqueous solution containing detergents.

The detergents emulsify oil present on the material to be treated; for this reason, oil concentration tends to increase in degreasing baths until the need for renewal and/or replacement, to avoid loss of efficacy.

Using ceramic membrane technology, there has two fluids, one is permeated which is constituted by water and detergents present in the original bath, the other is concentrate which contains oils and suspended solids and that is back to oil removal tank. After ceramic membrane treatment, the concentration of oil in the degreasing tank can be maintained at a low and very stable concentration range, the quality of the cleaned steel plate is uniform. The emulsion oil in the waste liquid is subjected to demulsification to reduce the amount of surfactant used in the cleaning solution.

Separation principle

Selecting the appropriate ceramic membrane filtration precision, by utilizing the characteristics that oil molecules and water molecules differ by tens of times in size and hydrophilic membrane surface properties of ceramic membrane, oil molecules can be effectively rejected, and water, degreasing bath, and surfactant small molecules can be recycled through the membrane surface. The degreasing bath is concentrated by the ceramic membrane system, and the volume of the discharged waste liquid is greatly reduced.

Technical benefits

1. Oil is removed and decreasing baths can be recycled ;
2. Costs of adding chemicals are significantly reduced;
3. The usage of surfactant is greatly reduced because of SS removal ;
4. Regeneration period is prolonged to 6 months or more ;
5. Subsequent wastewater treatment cost is decreased ;
6. Longer service life, lower operating pressure and lower energy consumption;
7. Simple, compact, fully PLC control
8. Ceramic membrane has excellent chemical resistance, high-temperature resistance and high separation precision

JIUWU HI-TECH has many unique membrane applications and more than 50 Patents regarding jiuwu ceramic membranes, systems and process applications, ceramic membrane filters, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

CHEESE, MILK, WHEY AND FOOD PROTEIN

Concentrated milk proteins (MPCs) and isolated milk proteins (MPIs) are produced by ceramic membrane filtration system and their dairy proteins are separated from fresh skim milk. They combine rich calcium with good thermal stability and refreshing mouthfeel. They are rich in casein and whey protein in the same proportions as skim milk.

Milk protein concentrates are widely used and are ideal for cheese products, artificial products, dairy drinks, infant nutrition, medical nutrition products (enteral foods), weight management products, powdered dietary supplements and sports nutrition products.

In general, milk protein concentrates provide a concentrated source of protein for sensory and functional properties in the final application process to meet nutritional value. Condensed milk protein serves as an alternative to whole milk powder (WMP), skim milk powder (SMP) and other milk powders, providing the same protein, or as a non-fat milk solid (MSNF). Compared with ordinary milk or skim milk powder, concentrated milk protein with high protein, low lactose characteristics.

The traditional ultra-high temperature sterilization process will destroy many of the active nutrients in milk but low-temperature ceramic membrane filtration technology completely subvert the traditional high-temperature sterilization of milk. The process of milk filtration and clarification is to make natural fresh milk fluid through dairy ceramic membrane technology and avoid heat denaturation of the protein, fully retain 99% of active immunoglobulin and 95% of lactoferrin and a variety of natural vitamins, milk calcium, minerals and trace elements and other nutrients in the state of low temperature and ensuring safety at the same time.

 BACTERIAL REMOVAL FROM MILK

Like many foods, milk and its derivatives provide a suitable environment for spoilage microorganisms. Therefore, pretreatment and temperature, time parameters must be selected to control the growth of microorganisms. Heat treatment and centrifugal sterilization are the traditional methods of reducing total number of bacteria in milk and dairy products, but these methods have their own advantages and disadvantages. Traditional techniques to remove bacteria in milk have more steps and high cost, short life, environmental pollution, inconvenient cleaning. However, the ceramic membrane filtration of milk can well solve these problems.

Membrane separation technology is used to eliminate bacteria in milk, which is based on the fact that the membrane has different material retention rates in various components of milk, including bacteria and spores. Bacteria can make the rejection rate of more than 99%, while casein transmittance can reach about 99%.

Membrane separation technology has a good membrane flux and sterilization effect, can completely remove bacteria in liquid milk, at the same time the flavor of milk has also been improved.

Membrane separation technology for cold sterilization is the method of fresh milk is  preheated to about 50 degrees and skim milk is got through milk cream separation machine. Then on the same day fresh skim milk makes filtration sterilization, combining with high-temperature instantaneous sterilization technology, to access to high quality dairy products. Such low-temperature sterilization retains a good flavor and nutrients, rich aroma.

Moreover, membrane cleaning is much easier to regenerate, so that membrane fouling can be controlled and a higher and more stable membrane flux can be maintained. The use of membrane separation technology for cold sterilization of milk, functional components can be retained during the re-separation activity, is an ideal method of sterilization of milk.

 BACTERIAL REMOVAL FROM WHEY CASEIM

Casein is the basic component df ordinary cheese. In the cheese making process, casein is precipitated by the action of rennet enzymes,and a coagulum is formed consisting of casein,whey proteins,fat,lactose and the minerals of the milk.

Membrane separation technology is used to eliminate bacteria in milk, which is based on the fact that the membrane has different material retention rates in various components of milk, including bacteria and spores.Bacteria can make the rejection rate of more than 99%, while casein transmittance can reach about 99%.

JIUWU HI-TECH has many unique membrane applications and more than 50 Patents regarding ceramic membrane solution, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Membrane technology in the chemical industry is applied to brine filtration, natural rubber, polysolicon cutting fluid recovery and lithium recovery from salt lake brines. It can be used in bio-production clarification, edible liquid salt purification, nanofiltration system sulfate removal, primary brine purification and so on. The advantage is that it is environmentally friendly and cost saving. In natural rubber processing, the use of ceramic membrane filtration consumes less quantities of acid and produces less harmful pollutants to the environment. During the process of polysolicon cutting fluid recovery, you only need to spend low operating costs but will receive fast return on investment by using ceramic membrane equipment technology. Besides, the high-precision anti-pollution ultrafiltration membrane is used to purify the brine water, which can remove all solid suspended matter in the brine. With contact equipment, the process is simple and requires no human intervention in the operation. The application of ceramic membrane will help you save costs but gain more profits!

Brine Filtration

JIUWU is the first one to use ceramic membrane in the primary brine purification industry.

Natural Rubber

JIUWU offers a safer, cheaper and greener option to produce skim rubber products of high quality.

Polysilicon Cutting Fluid Recovery

Ceramic membrane can treat the waste liquid silicon produced in the solar energy production process.

Lithium Recovery From Salt Lake Brines

The membrane equipment for the lithium yield can reach 80% which is at the leading level.

JIUWU HI-TECH has many unique ceramic membrane applications and more than 50 Patents regarding jiuwu ceramic membranes, systems and process applications, in areas such as Food & Beverage, Bio-Pharm, Environmental and the Chemical Industry. We sincerely invite and welcome people from all around the world to invest and create more values together.