JIUWU Membrane

JIANGSU JIUWU HI-TECH CO. LTD. (Referred to as “JIUWU HI-TECH”) was founded in 1997. In 2017, JIUWU HI-TECH was listed on the Shenzhen Stock Exchange (stock code: 300631). They have become the largest ceramic membrane manufacturer in the World.   https://www.jiuwumembrane.com/  

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Ceramic Membrane Filtration System

Skid-mounted device (Ceramic Membrane Filtration System) effectively allocates and stores machine for process and modular systems in the field of solid-liquid separation. A CMF skid-mounted device is designed by order and fully optimized as process flow, which includes CMF unit, power part, control part and supporting pipelines, valves and instruments. The device can be designed as a containerized device.

OVER VIEW OF CMS SKID- MOUNTED DEVICE

Manufacturing skid systems—large and small—is our specialty

The skid-mounted device effectively allocates and stores machine for process and modular systems in the field of solid-liquid separation. A CMF skid-mounted device is designed by order and fully optimized as a process flow, which includes the CMF unit, power part, the control part and supporting pipelines, valves, and instruments. The device can be designed as a containerized device.

 This type of device assembly offers many advantages over conventional on-site construction. With built-in flexibility for customer installation, we equip this device to your specific requirements. This device benefits from high-quality work with less site disruption. We design and fabricate across the full spectrum of different applications to meet the distinctly specialized needs of the industries and companies we serve.

 Advanced technology applied with real-world expertise

Our highly qualified engineers and draftsmen are not only masters of advanced technology, but they also have the real-world expertise to apply it for maximum effectiveness.

We use state-of-the-art CAD software packages to transpose your requirements into a cost-effective design.

We meet your most stringent specifications.

 Industry and application-specific solutions

JIUWU HI-TECH is a professional ceramic membrane supplier and has provided skid systems for the food& beverage, chemical industries, as well as skid-mounted systems used in the waste & water treatment industry. We have added considerable capacity in this area in anticipation of increased demand. We provide complete and mature process technology and device to ensure the stability, reliability, and advancement of the processing process. We also offer CMF skid-mounted device to ensure lower energy consumption and higher quality in industrial production.

ADVANTAGE OF CMS SKID- MOUNTED DEVICE

Low overall investment costs

Easy installation & relocation

Short delivery time through an integrated fast track execution

Reduced on-site erection and hook-up time

Manufacturing under workshop conditions (fast, clean and reliable)

Qualification test prior to delivery

Total responsibility in one hand, thus fewer interfaces for you to handle

Modular, integration, Intelligentization, short process, long service life

  https://www.jiuwumembrane.com/ceramic-membrane-filtration-system/

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Ceramic Membrane Element

As a core technology, JIUWU has become the largest ceramic membrane element producer and a world leader in cross-flow filtration. JIUWU ceramic membrane element is tubular composite membranes on an open porous carrier tube made of high purity α-alumina oxide (AL2O3) and titanium oxide (TiO2). The ceramic membrane element is optimized for maximum water permeability and high mechanical stability.

 Ceramic Membrane Element JIUWU Ceramic Membrane Element

Microfiltration Ceramic Membrane Element

The pore size of ceramic microfiltration membranes are 200nm, 500nm, 1200nm and so on.

 Ultrafiltration Ceramic Membrane Element

It could remove emulsified oils, metal hydroxides, colloids and other large molecular weight materials from water and other solutions.

 Nanofiltration Ceramic Membrane Element

Ceramic nanofiltration membrane is widely used in petroleum and chemical industry, medicine, metallurgy and other processes.

 JIUWU ceramic membrane element has an asymmetrical structure consisting of three layers, which are filtering layer, an intermediate layer, and the support layer. The pressure drop of such asymmetrical structure is lower than that of the symmetrical structure of another membrane, which means that the ceramic membrane element has a better recovery.

 JIUWU ceramic membrane element adopts dynamic cross-flow filtration mode which is completely different from dead-end filtration and filter-cake filtration.

 The feed flows into the membrane channel at a cross flow velocity. Under a certain pressure (Trans-Membrane Pressure), small molecular substances or clean liquids pass through the membrane layer vertically to permeation, macro molecular substances or solids are trapped by the membrane, thereby achieving the purpose of clarification, concentration and purification. Cross-flow filtration mode can achieve stable fluxes.

 JIUWU ceramic membrane element is an ideal choice for high value-added products and demanding selective separations from solid-liquid fluid streams. The compact multi-channel geometry and high permeability are optimized for bulk processing applications.

 JIUWU ceramic membrane element has a wide range of application-specific of geometries with pore size from 2nm to 1200nm, making it ideal for micro filtration ultra filtration, nanofiltration.

 JIUWU ceramic membrane element is available in sizes ranging from small laboratory devices through individual modules of 0.1 square meters surface area, ensuring the ability to evaluate and scale up processes to any size.

 The types of ceramic membrane element are composed of the code and the Arabic numerals by the follow rules.

 https://www.jiuwumembrane.com/ceramic-membrane-element/

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Wine

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

 Comparison:

  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.

  https://www.jiuwumembrane.com/application/wine.html

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Titanium Dioxide Wastewater

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.

  https://www.jiuwumembrane.com/application/titanium-dioxide-wastewater.html

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Textile And Printing Industry Wastewater

SIZING SOLUTION RECOVERY

Printing and dyeing sizing wastewater alkali reuse technology patent is the use of ceramic ultrafiltration membrane technology to concentrate sizing wastewater, which permeates directly backs to the sizing process, water and caustic soda are reused fully after treatment resulting in zero discharge. The technology has achieved industrial scale applications and access to a national invention patent.

 1. Dyeing and sizing wastewater contains a large amount of refractory slurry, the slurry into the sewage treatment system, increasing the difficulty of biochemical treatment, making sewage treatment costs increase. Printing and dyeing sizing wastewater also contains a higher concentration of caustic soda (0.5% ~ 7%) and a certain amount of refining agent, with a high recovery value.

 2. Using uf membrane technology, the printing and dyeing sizing wastewater concentration treatment, membrane treatment of the permeate directly to the sizing process, including water and caustic soda, etc. can be completely reused to achieve zero discharge of sewage treatment.

 Refined water from a dying plant in Nantong is treated by ceramic membrane technology, project design daily capacity is 500m3 or more, yield meets the workshop reuse requirements.

  INDIGO RECOVERY

The dye wastewater containing indigo is characterized by a dark blue color due to the presence of the dye not fixed to the fiber during the dyeing process.

 The primary use for indigo is as a dye for cotton yarn, which is mainly for the production of denim cloth for blue jeans.

 The wastewater containing indigo is characterized by a moderate amount of chemical oxygen demand (COD), pH, suspended solids, dissolved solids and a dark blue color, due to the presence of the dye not fixed to the fiber during the dyeing process.

 JIUWU HI-TECH utilizes the unique integrated membrane systems for dye wastewater treatment, which recover the insoluble indigo dye, the production of a secondary commercial product from the waste stream through a by-product synergy process offers an attractive alternative to discharging the untreated effluent into municipal treatment plants or the environment.

  WASHING EFFLUENTS

Washing is a finishing process applied to fibres, yarns, and fabrics.

 Washing is normally carried out in hot water (40-100°C) in the presence of wetting agent and detergent. The detergent emulsifies the mineral oils and disperses the undissolved pigments. The choice of the surfactants may vary also depending on the type of fibre. Mixtures of anionic and non-ionic surfactants are commonly used. An important factor in the selection of a surfactant is its effectiveness in strongly alkaline conditions.

 Washing effluents are mainly composed of soap, grease, synthetic detergents, detergents and a small amount of bacteria, coliform bacteria, viruses, and other harmful substances, has become an important source of water pollution.

 After washing effluents are discharged into natural water, dissolved oxygen is consumed and slightly toxic to aquatic organisms, which can cause fish malformation and eutrophication caused by phosphate solvent.

 https://www.jiuwumembrane.com/application/textile-and-printing-industry-wastewater.html

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Sweetener

A sweetener is a food additive that provides a sweet taste like that of sugar while containing significantly less food energy. Some sugar substitutes are produced by nature, and others produced synthetically. Those that are not produced by nature are, in general, called artificial sweeteners.

 Ceramic membrane technology is finding application in the sweetener industry for clarifying, concentrating, and purifying these important products. They are also ideal for treatment of waste streams from sweetener processes, either for recovery and reuse or treatment prior to waste disposal.

 Removal of haze and color from sugar syrup, the concentration of sugar water, can both be accomplished via ceramic membrane filtration processes.

  GLUCOSE SYRUP

Glucose syrup, also known as confectioners glucose, is a syrup made from the hydrolysis of starch.

 In the food industry, glucose can be produced by iso-enzyme treatment of fructose, especially fructose syrup containing fructose 42% which has similar sweetness to sucrose and become an important product of the current sugar industry.

 Glucose is produced by enzymatic hydrolysis of starch milk under certain conditions In the preparation of glucose, there will be a part of protein, fat, fiber, pigment, salt, and other impurities, directly affect the quality of glucose. The application of integrated membrane separation technology containing ceramic membrane & organic membrane filtration has become a new energy-saving cleaner production technology.

 Advantages :

 Filtrate clear;

excellent transparency,light transmittance > 97%;

reduce the amount of filter aid;

save production costs;

  Cane & Beet sugar

Membrane technology can be used in the production of sugar cane juice drinks, original brown sugar; "Membrane - resin process package" can be used for production of refined sugar, high-quality sugar, primary sugar, raw sugar and edible syrup which replaces the traditional one-step, two-step method in the process of liming, sedimentation, plate-frame.

 "Membrane resin process package" has unique advantages of clarified sugar cane juice, without muddy, without adding chemical reagents, effective interception of microorganisms, reduce energy consumption, short process, small footprint, achieving CIP cleaning, good regeneration performance, long service life.

 Continuous ion exchange technology is a completely innovative separation technology, which is based on the traditionally fixed bed resin adsorption and ion exchange technology, combined with the continuous countercurrent system developed. Through continuous ion exchange, can make separation column in a process cycle to complete the adsorption, washing, regeneration, eluting.

 The advantages of continuous ion exchange technology

① compact structure, less piping, small footprint

② high resin utilization, can reduce the amount of 50% -70%

③ high product yield, concentration and purity, and stable

④ washing and chemical reagents consumption less, save 50% -70%

⑤ little waste emissions, greener

 Membrane - resin process package" advantages

① can effectively filter clarified cane juice, the product is not muddy.

② without adding chemical reagents, reduce solid waste emissions.

③ high production efficiency, reduce labor costs, improve product quality, improve sugar yield.

④ high precision membrane filtration, which can effectively intercept microorganisms.

⑤ reduce follow-up evaporation energy consumption by 50% and production costs.

⑥ short process, compact, small footprint, reduce capital costs.

⑦ membrane and resin can achieve CIP cleaning, good regeneration performance, long service life.

 https://www.jiuwumembrane.com/application/sweetener.html

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Primary Brine Purification

primary brine purification

 Ceramic Membrane Brine Purification Solution (hereinafter called CBS Process) is a well- proven process for brine water treatment, which can guarantee to offer high quality, stable and reliable primary brine for a long-term and is also an advanced process option for chlor-alkali companies.

 CBS combines the characteristics of inorganic materials and the use of efficient "cross-flow" filtration which has greater advantages over other purification technologies.

 CBS process can also be used for bittern vacuum salt making and the quality of solid salt produced is higher than that of clarification process which can be used as high-quality edible salt or chloralkali salt. This process involves salt water filters and salt water purifiers for salt water filtration, salt water purification and salt water desalination.

 Process characteristics:

 HIGH-QUALITY PRIMARY BRINE

SS≤0.5ppm, [Ca2 +] + [Mg2 +] ≤0.5ppm

WITHOUT ANY FLOCCULANTS

Reduce costs and no additional ionic contamination;

SMALL FOOTPRINT

New projects can reduce more than 30% investment in primary brine;

WITHOUT ANY LIMITATION FOR RAW SALT

Suitable for raw salt with inverted calcium and magnesium ratio

Also applies to sea salt;

LONG SERVICE LIFE, HIGH STRENGTH, EASY TO CLEAN, EASY TO REGENERATE

Durable, easy to maintain

FILTRATION PORE SIZE: 50 NM

Lower pore size than the smallest filter paper(200 nm) in your analysis chamber

 Process advantages :

 SHORT PROCESS

Compared with the traditional process, CBS eliminates the need of clarifier, sand filter & pre-coated cellulose filter tube and cleaning & pre-coating workload and avoids the secondary pollution of silicon.

 Compared with organic polymer membrane, CBS not only eliminates the need of process and equipment of pretreatment system, flotation with pressurized dissoluble gas and floated clarification but also eliminates the need of corrosive, harmful chemicals such as ferric chloride which reduces the corrosion damage of system equipment and piping, completely avoids the secondary pollution of primary brine.

 LONG SERVICE LIFE

High-quality, high-strength inorganic ceramic membrane can work long-term under the pressure of 1MPa without affecting by acid, alkali, oxidants, etc.

 Ceramic membrane surface does not have any possibility to occur the phenomena of tearing, corrosion, aperture stretch ,but organic polymer membrane surface does. The service life of ceramic membrane tube is up to 5years.

 The filtration pore size is less than 50nm. The simple screening principle can make the SS of the filtered brine less than 0.5ppm, greatly reducing the load of the chelating resin tower and the pollution of the ion membrane.

 ANTI-FOULING

CBS process adapts to high magnesium raw salt. Ceramic membrane has excellent anti-pollution ability, and works at a high concentration of contaminants (5 to 10%) with full use of "cross-flow" filtration, eliminates defects which filtered membrane is not tolerant to high magnesium and organics in a dead-end filtration mode and reduces the quality requirements of crude salt, broadens the scope of salt selection.

 SMALL FOOTPRINT

Because of short process, less equipment, simple process control and simple operation, installation and construction area can be greatly reduced compared with other primary brine technologies. The technology is easy to combine with the traditional process, especially for the old device reconstruction project.

  Nanofiltration Systems Sulfate Removal

 Membrane filtration principle

 Ceramic membrane filtration technology is based on a selective filtration through a pressure -driven membrane. The membrane has charged groups that selectively reject multivalent anions such as SO42-. The membrane does not separate monovalent ionic species such as Cl- or CLO3- from the feed solution.

 To maximize the membrane area within a compact space, the membranes are packaged as cylindrical elements in a spiral wound configuration.

 Feed brine floods the entire feed side of the membrane surface within the membrane element by flowing within a mesh spacer. Brine then permeates through the membrane, where the sulfate is rejected, and flows in a spiral pattern through the permeate carrier, towards the perforated permeate tube.

 To achieve the required membrane area, several ceramic membrane elements are packed into several high-pressure housing. The high-pressure housings are arranged in series to provide the required number of stages to concentrate the sodium Sulphate solution.

 The membrane filtration unit usually treats dechlorinated depleted brine from the chlor-alkali electrolyzer. It is at this location that the Na2SO4 concentration is at its highest and the NaCl concentration is at its lowest. Normally only a portion of the dechlorinated brine flow needs to be passed through the Sulphate removal system, the remainder bypasses the Sulphate remove system and is returned to the saturators.

 Features:

 1. Reduced purge of depleted brine

Substantial costs saving due to less NaCl loss

More Environmental friendly, less effluent

 2. No secondary pollution

No need to use BaCl2 reagent which is toxic

No Barium treatment cost

No solid BaSO4 waste

 3. No secondary pollution

Lower operating costs

Reduces effluent volume

Full recovery of sulfate and sodium chloride

Proven technology with many references

 https://www.jiuwumembrane.com/application/primary-brine-purification.html

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Paper Industry Wastewater

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

 https://www.jiuwumembrane.com/application/paper-industry-wastewater.html

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Palm Oil Wastewater

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.

  https://www.jiuwumembrane.com/application/palm-oil-wastewater.html

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Organic Acid Fermentation Broth Clarification

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

 A. 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.

  B. 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

 https://www.jiuwumembrane.com/application/organic-acid-fermentation-broth-clarification.html

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Oily Wastewater

In the production process of rolling, galvanizing, spraying, metal cutting, oil and alkali refining, a large amount of oily wastewater is produced. JIUWU company has been successfully applied to the treatment of oily wastewater with ceramic membrane technology, and there are many typical cases. JIUWU company can provide the overall process package of emulsified oil wastewater treatment, including the oily water filtration system.

 The advantages of ceramic membrane process:

 Acid/alkaline/oxidation chemicals resistance

Solvent stability

High thermal stability and steam disinfected

Wear ability and excellent strength

Stable over a wide pH range

Narrow pore size distribution

Easy to be cleaned and regenerated

No chemical agent, no new sludge

  Cold rolling emulsion waste water

In order to eliminate the thermal deformation caused by cold rolling in the rolling steel production process, emulsion should be required for cooling and lubrication, thereby there are lots of cold-rolled emulsion wastewater. JIUWU company has adopted UF ceramic membrane + MBR integration technology to treat cold-rolled emulsion wastewater, which has achieved very good results.

 Mechanical processing of industry oily wastewater treatment

The waste liquid and washing wastewater discharged from the metal products during the mechanical processing mainly contain impurities such as oil, grease and metal ions, and are highly polluting to the environment. The ceramic membrane integration technology developed by the company can be used for the oily water treatment and has good performance in handling this kind of wastewater.

 Edible oil

For most of the countries, Edible oil processing units is one among the major economic zones.

 For edible oil refinery industries, “water” is the main component for the process. The wastewater from oil processing industries contains both organic and inorganic content, which are produced after various processes like degumming, deacidification, deodorization and neutralization steps. The wastewater will be also highly acidic and oily with Sulphate and Phosphate content that cause serious threat to environment and mostly the aquatic life.

 With the increasing demand on treating wastewater from edible oil processing units, membrane technology including ceramic membrane bioreactor and RO /NF combined process has been applied to treat edible oil processing wastewater.

 https://www.jiuwumembrane.com/application/oily-wastewater.html

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Oil Field Injection Water

1. Ultra-fine water treatment in oil and gas field

 Qualified reinjection water can be obtained at one time using ceramic membrane integrated system to treat oily wastewater in oil and gas field (up to Grade A in SY / T5329-2012  standard).

 With the continuous development of oil and gas fields, the water quality of the produced water is more and more complicated and the processing is more and more difficult. The traditional backwash filter is prone to cause filter material hardening, the filter media is not thoroughly cleaned, the water is not qualified and the life span is short, covers a large area and has other disadvantages, but ceramic membrane system using efficient "cross-flow" filtration, with high filtration accuracy, short process, small footprint, high integration, water stability and other characteristics. It has been proved by field test and engineering cases that it has good treatment effect on water flooding, polymer flooding and ASP flooding produced water.

 Fields of application:

Oilfield water treatment

Fracturing return fluid

Drilling waste

Gas field produced water

 2. Membrane treatment in oilfield conventional water flooding produced water

 Conventional water-flooding technology is widely used in onshore oilfields and offshore oilfields in China. For low permeability and ultra-low permeability reservoirs, water injection quality directly affects the development effect of the oilfield. The ceramic membrane technology is used to finely treat the water flooding wastewater (patent number: 102225812A), and the water quality of the effluent reaches Grade A standard.

 3. Membrane treatment in oilfield Polycondensation / ASP Flooding produced water

 Due to the fact that the polycondensate sewage is very complex, with the characteristics of large viscosity, high degree of emulsification, complex composition, and difficult biodegradation, the traditional process cannot meet the demand of oilfield production. The oil and suspended particles of polycondensate sewage are removed to achieve the requirement of water injection in low permeability oilfield when using pretreatment integration ceramic membrane process (Patent No .104071919A).

 https://www.jiuwumembrane.com/application/oil-field-injection-water.html

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Natural Rubber

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.

 https://www.jiuwumembrane.com/application/natural-rubber.html

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Natural Herb Extract

TEA EXTRACT

With the emergence of tea drinks and tea products, tea polyphenols or instant tea powder as a major ingredient demand surge. How to improve the quality of their products and reduce production costs, has become the focus of attention.

 In traditional plant extraction methods, the tea polyphenol is seriously lost, and the tea flavor is also a great loss. And the tea juice made from the two kinds of raw materials is not clarified and easy to precipitate.

 As the increasing development of ceramic membrane technology, membrane separation and membrane concentration become the best choice for extraction and concentration of heat-sensitive substances such as tea juice, fruit juices and vegetable juices.

 Tea juice is concentrated by membrane at first(can also directly produce instant tea powder or hook on the tea drink) and then extracted polyphenols, although one-time investment is slightly larger, but the operating cost is lower than the vacuum concentration method, and the amount of extraction solvent is reduced , product quality is significantly increased, reducing the phase transition of active ingredients in tea (such as EGCG) and the loss of aroma compounds in tea. Caffeine, tea polyphenols, theanine, instant tea powder or direct hook into tea drinks can be directly produced.This process has less emissions of pollutants with good technical and economic advantages.

 Advantages:

Effectively retain the functional active components in tea

High stability of final products

Functional effective extraction rate and purity are high

Concentrate from membrane has good colour, smell and testing

Long work life for membrane filter

Lower cost of manufacture

Membrane is easy to be regenerated by normal chemicals

Easy maintenance which will save much labour cost

Reliable operation with PLC control

  PLANT AND ANIMAL PROTEIN

 Soybean milk protein concentration

Compared with the traditional evaporation process, ceramic ultrafiltration process can get higher solid content, at the same time can save energy, and can achieve cleaner production.

 Soybean protein isolate(SPI) extract

The introduction of advanced membrane separation technology can effectively improve the separation capacity of plant extracts, increase the protein content, reducing the proportion of moisture in the bean dregs. Ceramic membrane can effectively meet process requirements,which can make  solids content up to 25%.

 However,whey wastewater from SPI production has become a common constraint in the deep processing of soybeans. The use of membrane separation technology can effectively control the environmental pollution, recycle recoverable whey protein from whey wastewater which brings a new economic growth to soybean factories.

 Soy oligosaccharides recovery

Soy oligosaccharides are the main by-products of soybean food processing, which are abundant in the supernatant after the production of soy protein isolate. To recover soy oligosaccharides, nanofiltration can get more satisfactory results.

 Soy active peptides

Ceramic membrane separation process is applied to the separation and purification of soybean active peptides by the fermentation method. The permeate is clear and transparent and has an orange-red color. The vast majority of bacteria in the fermentation liquid and the insoluble macromolecule proteins and colloid are entrapped and removed. Permeate without sediment phenomenon is realized for a long time. At the same time, the method of continuously adding dialysis water can collect effective dissolved components in the raw material liquid as much as possible so that the yield of the soluble polypeptide reaches more than 95%.

 Dried porcine solubles (DPS) extract

The raw material of DPS is animal intestinal mucosa.

The small intestine of fresh animal in the slaughterhouse will scrape the small intestine content (mucous membrane) when it is processed into semi-finished sausage casing, and the intestinal mucosa is mainly used to extract heparin sodium. The intestinal mucosa after extracting heparin sodium is the raw material for the processing of intestinal membrane protein.

 The application of membrane process has the following advantages:

Fully recovery protein

Product purity has been improved

Reduce the cost of drying

Improve product quality

Convenient and simple operation

  PLANT PIGMENT

 Plant pigments include a variety of different kinds of molecule, porphyrins, carotenoids, anthocyanins and betalains.

 The traditional method of extracting plant pigment is:

First, crude extract is carried out in organic solvent, then refined with resin or other processes, and then evaporated and concentrated at a low temperature .The process is complex, difficult to control, has large amount of organic solvents and resin dosage, consumption of acid and alkali, high operating costs, polluted environment, unstalbe pigment quality , low color value.

 Application of membrane separation and purification process can simplify whole process, save organic solvents. Ultrafiltration process can remove protein, starch and other impurities, and then desalinated by nanofiltration to remove small molecules, while concentrated. Automatic control can be achieved, greatly reducing extraction costs, pigment quality and stability and high color value can be satisfied.The entire process does not add any additives, is the real green technology. It is also applied to the production of herbal extracts.

 https://www.jiuwumembrane.com/application/natural-herb-extract.html

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Nanofiltration Systems Sulfate Removal

Membrane filtration principle

Membrane filtration technology is based on a selective filtration through a pressure-driven membrane for sulfate water treatment. The membrane has charged groups that selectively reject multivalent anions such as SO42-. The membrane does not separate monovalent ionic species such as Cl- or CLO3- from the feed solution.

 To maximize the membrane area within a compact space, the membranes are packaged as cylindrical elements in a spiral wound configuration.

 Feed brine floods the entire feed side of the membrane surface within the membrane element by flowing within a mesh spacer. Brine then permeates through the membrane, where the sulfate is rejected, and flows in a spiral pattern through the permeate carrier, towards the perforated perforated permeate tube.

 To achieve the required membrane area, several membrane elements are packed into several high-pressure housing. The high-pressure housings are arranged in series to provide the required number of stages to concentrate the sodium Sulfate solution.

 The ceramic membrane filtration unit usually treats dechlorinated depleted brine from the chlor-alkali electrolyzer. It is at this location that athe Na2SO4 concentration is at its highest and the NaCL concentration is at its lowest. Normally only a portion of the dechlorinated brine flow needs to be passed through Sulfate removal system, the remainder bypasses the Sulfate removal unit and is returned to the saturators.

 Features:

1. Reduced purge of depleted brine

Substantial costs saving due to less NaCL loss

More Environmental friendly, less effluent

 2. No secondary pollution

No need to use BaCl2 reagent which is toxic

No Barium treatment cost

No solid BaSO4 waste

 3. No secondary pollution

Lower operating costs

Reduces effluent volume

Full recovery of sulfate and sodium chloride

Proven technology with many references

 https://www.jiuwumembrane.com/application/nanofiltration-systems-sulfate-removal.html

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Lithium Recovery From Salt Lake Brines

The pretreatment workshop of Lithium extraction process adopts the international leading gradient coupling membrane separation technology, and the potassium fluoride from salt pans is subjected to magnesium-lithium separation and lithium concentration process to obtain high-purity lithium-rich brine, and is sent to the lithium plant to produce battery-grade lithium carbonate. The operation of the membrane equipment is fully automatic, the lithium yield can reach 80%, and it is at the leading level in the lithium recovery from brines.

 The process flow chart of the pretreatment workshop

The potassium fluoride from salt pans is thoroughly mixed with the fresh water sent from the boundary area to reduce the magnesium ion concentration in the brine and then sent to the pre-treatment unit. In the pretreatment unit, the brine is removed by sand filtration to remove large particles of impurities and then sent to an ultrafiltration filter to remove all solid suspended matter. The pretreated purified brine is mixed with the fresh water reused in the workshop to further reduce the ion concentration and sent to the magnesium-lithium separation unit. In the brine purification process, it is separated into magnesium in the brine by a nano-scale membrane separation process in a magnesium-lithium separation unit to reduce the ratio of magnesium to lithium produced by the brine, and the high-magnesium old halogen is converted into a pure lithium chloride solution, and then sent to a lithium chloride primary concentration unit. The primary concentration unit uses a reverse osmosis membrane to concentrate the lithium chloride solution to increase the concentration of lithium chloride, and at the same time, fresh water is recycled to the former unit for dilution of the brine to achieve an internal balance of production water. The concentrated lithium chloride solution concentrated by the reverse osmosis membrane enters the secondary concentration unit, and the unit is further concentrated by the electrodialysis membrane to concentrate the lithium chloride concentrated water, and finally, the lithium-rich brine is sent to the sinking lithium workshop to produce battery-grade lithium carbonate.

 Technical advantage analysis

The high-precision anti-pollution ceramic ultrafiltration membrane is used to purify the brine water, which can remove all solid suspended matter in the brine. The water recovery rate is high, the regeneration is easy, the service life is long, and the long-term stable operation can be maintained under the complicated salt lake brine condition.

 The imported magnesium-lithium separation special membrane has high separation efficiency, low magnesium content, unique lithium enrichment effect, low lithium content in the outer row, and low lithium loss.

 The imported reverse osmosis concentrated membrane has high ion rejection rate, good lithium concentration effect, no phase change in the concentration process, no steam consumption, and low energy consumption.

 The imported electrodialysis membrane has high concentration efficiency, stable performance, long service life, no consumption of chemical agents, low operating cost, simple equipment, and high automation.

 The process is simple, the equipment is compact, the degree of automation is high, the equipment selection standard is high, and no human intervention is required during the operation, and the equipment runs stable.

https://www.jiuwumembrane.com/application/lithium-recovery-from-salt-lake-brines.html

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Ceramic membranes (Porous Ceramic Membrane & tubular ceramic membrane) are available for microfiltration, ultrafiltration and nanofiltration as single-channel or multiple-channel elements with channel diameters between 2 and 16mm.

 Their main characteristics of porous tubular ceramic membrane

Consistent pore size; Very narrow mean pore-size distribution; Long and reliable lifetime; High permeate flux; Greater void area per unit area of filtration surface; High stability to organic media; High-pressure resistance, high-temperature resistance; Rigid with no creep or deformation; Stable over a wide pH range; Membranes bonded to substrate by strong ceramic bonds; Corrosion & abrasion resistant; Insensitive to bacterial action; Can be repeatedly sterilized by steam or chemicals; Ability to backwashed; The possibility of regeneration after fouling; Can process highly viscous fluids; Contact us now for more details about China membrane and the ceramic membrane price!

 The principle of porous tubular ceramic membrane

The principle of the ceramic membrane filtration system is based on two opposing effects: on the one hand, the particles are transported by the filtration flux to the membrane where they cause an increase in concentration; on the other hand, concentration differences are again reduced by the turbulence of the cross-flow and by Brownian motion of the particles. Ceramic membrane separation has greatly improved work efficiency and quality.  

https://www.jiuwumembrane.com/ceramic-membranes/