Blogs/News/PSAs

Dieselcompressor mobile: driven by diesel engine, it is the equipment with certain pressure which drives the rotation of screw compressor rotor and compresses air.

Electriccompressor mobile: It is driven by external power supply to drive the action of cheap air compressors.

Advantages and features of compressor mobile

1. High reliability: there are less compressor parts and no quick-wear part. Therefore, it has reliable operation, long service life and overhaul interval of 40000-80000 hours;
2. Convenient operation and maintenance: It is of high degree of automation. Operators do not need to undergo long-term professional training, and it can be operated without people here;
3. Excellent dynamic balance: due to no unbalanced inertia force, it can run smoothly and stably at high speed, and can run without foundation, especially suitable for compressor mobile. It is of small size, light weight and small land occupation;
4. Strong adaptability: with the characteristics of forced gas transmission, the volume flow is almost not affected by the exhaust pressure, and it can maintain high efficiency in a wide range of speed;
5. The operation parameters are clear, and the system has multiple functions of warning and shutdown protection;

Thecompressor mobileis widely used in mining, water conservancy, transportation, shipbuilding, urban construction, energy, military and other industries.

We have a strong technical force, sophisticated modern equipment and rich experience in production and construction. As a drilling rig machine 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.

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 in dairy industry, 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 dairy 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

Founded in 1997, Jiangsu Jiuwu Hi Tech Co. Ltd. is one of the most professional and reliable ceramic hi tech 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.

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.

A stripping system is installed and serves for reducing the ammonia nitrogen content and also the chemical oxygen demand(COD)in the process waste water to the standard values downstream the fertilizer production process.

Initially the waste water is fed into the tank near ground level. From there it is conducted into a Micro Bubble Generator Pump where air is mixed along with the water and brought into solution under pressure. After pressure released, the generated water-air mixture is delivered back into the tank through nozzles from above. Due to this sparkling, the ammonia releases gaseously from the waste water. Microbubble water treatment can be conveyed by a gas pipe to the fertilizer production process again.

WATER AND WASTEWATER TREATMENT FACILITIES

Some municipalities operate their own public utilities. Water and wastewater treatment is the one. You can figure out that the water treatment plant requires the installation of pumping stations (both subterranean and above ground) in order to make the water movement in the system.

WHY NEED DEHUMIDIFIER FOR WATER AND WASTEWATER TREATMENT FACILITIES

The common problems of these facilities face is the chronic condensation. It occurs when any time object surface temperature is below the dew point of the surrounding air. It will attack metal surfaces such as holding, treatment and filtration tanks, pump room equipment, pipes, supports, electrical equipment and the physical structure of the facility. This condensation and subsequent corrosion problem lead to the deterioration of the treatment plant.

EXCESSIVE MOISTURE WILL LEAD TO

Destructive effects

Damp environment can cause corrosion of metal, deterioration of paint

Failure of electrical components.

Sanitation breeding ground for the development of bacteria, fungus and molds.

GREEME WATER AND WASTEWATER TREATMENT FACILITIES DEHUMIDIFIERS

Greeme water treatment plant dehumidification units help to maintain the room dew point temperature prevent the moisture formation on metal surface and preserve the expensive equipment in these facilities: pumping stations to filtration buildings to sludge dewatering.

Each fresh and wastewater treatment plant is unique and may require a custom solution. Greeme specializes in the manufacture of high efficiency dehumidification equipment designed for providing year-round consistent humidity levels. Please feel free to contact us to make a unique design for you.

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.

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.

WINE AND LESS

Membrane crossflow filtration is becoming the unique alternative to kieselguhr filters in wine industry with the developments in environmental and health regulations.

Membrane crossflow filtration is widely used in wine membrane filter system for wine filtration, especially as the red wine filter. It can also be used for cross flow filtration beer. Now, the membrane crossflow filtration technology potential for energy-efficiency has made it a viable technique for the clarification of wine and other beverages.

Crossflow filtration uses a selectively porous ceramic membrane that filters a liquid in order to purify or clarify it. The quality of the filtration is constant over time because the fouling is reduced because the filtering is made without any change of state of the filtered element, and never gets distorted. Membrane crossflow filtration is one of the environmentally-friendly wine filtration systems. During the filtration, no filter aid is used. In one step, crossflow filtration clarifies the wine, giving it a clear appearance and making the wine microbiologically stable. So it has very strong advantages in simplifying the steps before bottling and reducing or eliminating the need for some consumables.

Advantages:

Stable filtrate quality

Maximum guarantee the sensory properties of the wine

Optimized process

No filter aids required

High yield

Reduced filtration costs & product losses

Smart, compact, small footprint

BEER BOTTOM RECOVERY

Bottom yeast sediment refers to the yeast sediment still remains in the fermentor  at the time of wine production, containing beer (sediment beer), calculated as 1000 liters of beer with 3 liters of "recovery yeast + sediment beer", then the yeast sediment is beer amount of 1.5% to 2%, the amount of beer recovered from the yeast is about 1% of total beer. Beer membrane filtration without filter aid has been increasingly used to recover beer from yeast, both good quality beer can be recovered, but also improve economic efficiency.

CIDER

Cider is an alcoholic beverage made from the fermented juice of apples.

Cider is popular especially in the West Country, and widely available. The UK has the world's highest per capita consumption, as well as its largest cider-producing companies.

Cider alcohol content varies from 1.2% ABV to 8.5% or more in traditional English ciders, and 3.5% to 12% in continental ciders.

Perry is a similar product made from fermented pear juice.

JIANGSU JIUWU HI-TECH CO. LTD.,founded in 1997, focus on producing ceramic membrane for many years. And JIUWU HI-TECH has become a leading company in the membrane separation 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.

JIANGSU JIUWU HI-TECH CO. LTD.,founded in 1997, focus on producing ceramic membrane for many years. And JIUWU HI-TECH has become a leading company in the membrane separation 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.

JIANGSU JIUWU HI-TECH CO. LTD.,founded in 1997, focus on producing ceramic membrane filters for many years. And JIUWU HI-TECH has become a leading company in the membrane separation industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Edible Liquid Salt Purification

Without adding flocculant, resistant to pollution, high filtration accuracy, stable &high quality refined brine.

Nanofiltration Systems Sulfate Removal

The membrane has charged groups that selectively reject multivalent anions such as sulfate ion.

Primary Brine Purification

Ceramic Brine Membrane Purification Solution (hereinafter called CBS Process).

JIANGSU JIUWU HI-TECH CO. LTD.,founded in 1997, focus on producing ceramic membrane for many years. And JIUWU HI-TECH has become a leading company in the membrane separation industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

Cephalosporin

Cephalosporin is the second class of β-Lactamase found in nature following by penicillin. Any of various broad-spectrum antibiotics, closely related to the penicillins, which were originally derived from the fungus Cephalosporium acremonium. It has many advantages of high efficiency, broad-spectrum, low toxicity and enzyme-resistance which has been developed four new products to its range. It belongs to superior antibiotics that its application is growing widely. Advanced production technique is very pressing to meet brisk demands of the market both domestically and internationally. Cephalosporin C, or simply as CPC, is the source of original nuclear（7-amino cephalosporanic acid）of various cephalosporium antibiotic.

During the production of CPC, frame filter press, rotate vacuum drum filter are still used as a means of separation to remove protein, mycelium, and solid particulates. The technical means available on site did not achieve satisfactory degrees of separation. Meanwhile, those methods are unable to separate the massive existences of soluble protein, macro-molecule organic matters from the broth. The filtered broth shows not high transmittance with residual insolubility and soluble impurities which would increase the difficulty in the downstream extraction process and have a bad effect on the quality and yield of final product. According to market adjusting, some companies are asked to improve separation performance by means of membrane technology and to reduce the product losses. With the wide applications of ceramic membranes, they will play a significant role in separation and purification of antibiotics.

Three steps are introduced in order to guarantee the yield of CPC in the process of filtrate fermentation broth for the production of CPC by ceramic membranes. Pre-concentration step is made to let feed volume Vo concentrate to Vd and permeates are obtained meanwhile; diafiltration step is to add cleaning agents in the wanted liquids while filtration and effective ingredients are got to reach a high yield ; post-concentration step is to concentrate wanted liquids to Ve aiming to treat residuals conveniently and improve yield further.

Ceramic membrane filtration system could intercept protein and solid particulates from the untreated antibiotic fermentation broth. The protein –removing the capability of this technology is 10 times as much as that of the original process, with filtration yield increasing by 6％. The attenuation range of membrane flow rate is narrow and thus a better product quality can be obtained.

The temperature of CPC fermentation broth from the fermented process drops to 10 below zero and it is acidified to pH2.5-3.0 by the use of hydrofluoric acid.

Then CPC clarity is got due to removing mycelium, suspended solids, and macromolecular protein through the filtration process. In the next refining process, macroporous resin adsorption and ion-exchange are applied, and then nanofiltration and reverse osmosis are also used to obtain concentrated CPC.

JIANGSU JIUWU HI-TECH CO. LTD.,founded in 1997, focus on producing ceramic membrane purification for many years. And JIUWU HI-TECH has become a leading company in the membrane separation industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

A large amount of waste acid is produced in the production of titanium dioxide, a large amount of high-salt wastewater is generated in the post-treatment process, and some titanium dioxide is still lost after the CN filter. On the one hand, the titanium white industry suffers from increasingly strict Environmental constraints, on the other hand, waste acid, water, and titanium dioxide resources are huge. Therefore, titanium dioxide water treatment has received an increasing attention. JIUWU has developed a series of membrane treatment technologies for waste acid treatment, titanium dioxide recovery, and water reuse.

Technical introduction

The membrane process is based on membrane separation technology. The salt and acid in the waste acid, the salt, and water in the waste brine are separated to achieve the acid and salt in the waste acid, and the salt and water in the brine can be reused. The removal rate of the metal salt in waste acid is over 98%, the recovery of titanium dioxide is 99.99%, and the water production index reaches the international first-class standard. The separation membrane is a cross-flow filtration method, which greatly reduces membrane fouling, delays the rate of membrane fouling, and improves ceramic membrane filtration efficiency.

Process

Titanium dioxide production includes two production methods, sulfuric acid, and chlorination. For two different production methods, JIUWU has designed different membrane processes.

1. Titanium white waste acid treatment process for sulfuric acid method

2. Titanium dioxide second washing water treatment process for sulfuric acid method

3. Titanium white chloride slag water 'zero liquid discharge' for chlorination method

4. Titanium white post-treatment water reuse process for chlorination method

Process advantages

• Product water quality: The SS is less than 1ppm, the turbidity is less than 0.5NTU, and the effluent water quality is stable;
• Save land occupation: Membrane process replaces sedimentation tank, land occupation is much smaller;
• Long work life: Acid and alkali resistant, high temperature resistant and high-pressure resistant, work life is longer than 5 years;
• Easy operation: Short process, less control point, DCS control
• High effectiveness: Short separation process, continuous operation, short wash cycle
• Circular economy: Full recovery of titanium dioxide, product water recycle, chlorination method Titanium white process combined with caustic soda process form the environmental protection industry chain.

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.

Process of Paper Industry Wastewater Treatment

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 inpalm 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. 

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