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Ultrafiltration Membrane Equipment


Ultrafiltration membrane filtration is the pressure difference on both sides of the membrane as the driving force, under a certain pressure, when the liquid through the membrane surface, the ultrafiltration membrane surface of many small pores only allow water and small molecules through And the substance in the stock solution is larger than the microporous diameter of the membrane surface. The substance is separated into the liquid feed side of the membrane and becomes a concentrated liquid, thereby achieving the purpose of purifying, separating and concentrating the stock solution. Ultrafiltration filtration efficiency in the range of 0.005-0.01μm, can effectively remove the water particles, colloids, bacteria, heat and polymer organic substances, widely used in the separation of substances, concentration, purification. Ultrafiltration process without phase conversion, operating at room temperature, the separation of heat-sensitive substances is particularly appropriate, and has good temperature, acid and alkali and oxidation resistance, can be below 60 ℃, pH 2-11 under the conditions of long-term continuous The use of ultrafiltration is a "cross-flow filter" in the form of fluid separation process, the raw material in the membrane surface (tube hole) within the high-speed flow, driven by the pressure of small molecules within the clarified permeate along with vertical or tangent Direction outward through the membrane, containing macromolecular components of the concentrate film retention, so that the fluid to achieve separation, concentration, purification purposes. Compared with the traditional separation method, the ultrafiltration membrane technology in the liquid material separation process has the following characteristics:

1, no pollution, no residue, is a green technology;

2, high separation accuracy, clear and transparent through the liquid, greatly reducing the follow-up refining process load, while improving the content of active ingredients in the product;

3, the filtration process only uses the pressure as the membrane separation power, the separation device is simple, the operation is simple, the craft parameter is easy to control;

4, the process is simplified, the process is short, the production cycle greatly shortened;

5, the film process does not occur phase change, no need to add pharmaceuticals, very energy efficient, can greatly reduce operating costs.

Ultrafiltration technology can be used alone or in combination with other methods for the purpose of separation for a variety of processes, the application of ultrafiltration technology in the following areas can achieve unexpected results.

pharmaceutical industry, beverages and cosmetics for the production of sterile water;

Electronic industry with pure water, high purity water terminal finishing.

Dairy, soybean protein recovery, degreasing milk concentration;

juice, wine clarification, sterilization, pectin, tannin;

fermentation, enzyme and polysaccharide products, purification, concentration and refining;

all kinds of toxins, interferons, vaccines and other biochemical products concentrated purification;

Chinese herbal medicine, plant extracts refined and purified;

electroplating, electrophoresis paint wastewater treatment and recovery;

mechanical industry emulsified oil, waste liquid, waste glycerol treatment recovery;

processing and recycling of PVA and dyeing wastewater in textile industry;

Landfill, MBR bioreactor wastewater treatment;

processing and recycling of paper industry wastewater.

The classification of the ultrafiltration membrane is divided into a variety of structures such as frame type (plate type), hollow fiber type, tube type and roll type according to the structure type. Among them, the hollow fiber ultrafiltration membrane for water treatment industry, roll and tube ultrafiltration membrane is the most advanced form of ultrafiltration technology can be widely used in a variety of difficult to deal with the process of clarification of the material filtration, separation , Concentrated, especially the tubular ultrafiltration membrane by the high-strength support layer, the transition layer and the film was asymmetrically distributed composition, strong compressive strength, working pressure up to 0.6Mpa, the use of PVDF polymer materials, Membrane core aperture of ∅8.0-12.5, not easy to plug, can be a long time and efficient continuous operation, tubular ultrafiltration membrane core tube as shown below:

Tubular membrane tube is composed of core and membrane shell, the most commonly used each tube has 19 and 37 membrane core two specifications. Ultrafiltration system is mainly composed of membrane tube, connecting pieces, pump, all kinds of piping, valves, circulating tank, cleaning tank, electrical control, bracket and so on. Tubular ultrafiltration membrane and other forms of structural membrane is not easy to plug, anti-pollution, the whole process of separation effect is good, simple operation, good regeneration performance and so on.


Membrane material


Membrane area


Filtration pressure


Filtration temperature


Filtration flux


monitor rate









1t / h


3.2 / 0.7 / 2.2



3t / h


3.2 / 0.8 / 2.2



6t / h


4.0 / 1.5 / 2.5



14t / h


4.0 / 1.8 / 2.5



21t / h


4.0 / 2.1 / 2.5



28t / h


4.0 / 2.4 / 2.5



42t / h


4.0 / 3.0 / 2.5



56t / h


4.0 / 3.6 / 2.5

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Ge Yi (Shanghai) Environmental Technology Co., Ltd.

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