Ultrafiltration device used in power plant, chemical industry, etc

Ultrafiltration is a kind of screen is divided into separation principle, pressure as the driving force of membrane separation process, filtration precision in 0. 005 - 0. 01 mu m range, which can effectively remove the particles in the water, colloid, bacteria, heat source and the macromolecule organic matter. Can be widely applied in the separation, enrichment and purification of matter. Ultrafiltration process without phase transformation, room temperature operation, the separation of heat sensitive material is appropriate, and has good heat resistance, acid and alkali resistance and oxidation resistance, can under 60 ℃, pH of 2 - 11 under the condition of continuous use for a long time.

2. The classification of the ultrafiltration membrane:

ultrafiltration membrane in the type of the structure of plate and frame type ( Plate) , hollow fiber type, table nano membrane ultrafiltration membrane, pipe type, volume type and other structures. Among them, the ultrafiltration technology of hollow fiber ultrafiltration membrane is the most mature and advanced a kind of form. Hollow fiber diameter 0. 4 - 2. 0 mm, inner diameter 0. 3 - 1. 4 mm, be full of microporous hollow fiber tube walls aperture to intercept molecular weight of the material expression, intercept molecular weight can be up to several thousand to tens of thousands of. Raw water in the hollow fiber outer or inner cavity pressure flow, respectively constitute the external pressure and internal pressure type hollow ultrafiltration membrane. Ultrafiltration is a dynamic filtration process, trapped material can concentrate to exclude from clogging the membrane surface, can run continuously for a long time.

3. The application of ultrafiltration technology:

early ultrafiltration is applied to industrial wastewater and sewage treatment. For over 30 years, with the development of ultrafiltration technology, the field of the application of ultrafiltration membrane technology has now is very wide, mainly including the food industry, beverage industry, dairy industry, fermentation, biological medicine, medicine, chemical, biological agents, Chinese medicine, clinical medicine, printing and dyeing wastewater, food industry wastewater treatment, recycling and environmental engineering, etc.

4. The advantages of the ultrafiltration equipment:

A. Ultrafiltration membrane element using the world famous film products, ensure that the customer is currently the world's most high quality organic membrane element, to ensure that the intercept performance and membrane flux.

B. System recovery rate is high, the products are of good quality, which can realize high efficient separation and purification of the material and multiple enrichment.

C. Process without phase transformation and composition of the material without any adverse effects, and in the process of separation, purification, concentration remain the state of the normal temperature, especially suitable for the processing of heat sensitive material, completely avoid the high temperature and the disadvantages of destruction of bioactive substances, effectively keep the bioactive substances in raw material system and nutrients.

D. System, low energy consumption, short production cycle, compared with the traditional process equipment, equipment operation cost is low, can effectively reduce the production cost, improve enterprise economic benefits.

E. System technology of advanced design, high degree of integration, compact structure, covers an area of less, easy operation and maintenance, labor intensity is low.

F. Material systems used in health level tube valve, the clean health, satisfies the requirement of GMP and FDA production specification.

g。 Control system can be used according to customer's specific requirements for personalized design, combining with advanced control software, centralized monitoring important process operating parameters, the field and avoid artificial wrong operation, ensure the long-term stable operation of the system.

5. Hollow fiber ultrafiltration membrane in use should notice:

A. The filtration system to regular sterilization. Ultrafiltration membrane can intercept bacteria, but can not kill bacteria, ultrafiltration membrane withholding rate again good also cannot guarantee a clean area for a long time is not long, a bacteria, bacteria can thrive. Directly affect the through water, such as some mineral water appears translucent filaments white flocculent in finished products mold, mainly is the mold contamination caused by system. Therefore, must be regularly to the turnover of environment and filtering system for regular sterilization, sterilization operation cycle for supply of raw water quality, for the city of ordinary tap water, 7 ~ 10 days in summer, winter 30 ~ 40 days, 20 ~ 30 days age season. Surface water as water supply, the sterilization cycle shorter. Sterilization drug available from 500 to 1000 mg/L sodium hypochlorite solution or 1% hydrogen peroxide solution circulation flow or soak for about half an hour.