Ultrafiltration membrane ultrafiltration membrane separation characteristics in technical areas, since the separation accuracy microfiltration reverse osmosis filter to continuous spectrum in the visible range, ultrafiltration and microfiltration ranged between nanofiltration. Ultrafiltration of the domain of molecular weight cutoff of about 500 to 500 000, corresponding to an approximate value of the membrane pore size 0.002μ ~ 0.1μ. MWCO membrane with pore size is no correspondence between the two. Simple to understand, an ultrafiltration membrane as a sieve, under a certain pressure (0.1 ~ 0.6mpa), allowing the solvent and solute through the membrane pore size less than, greater than the pore size of the solute is prevented by Hangzhou flat film company, in order to complete the purification of the solution , separated and concentrated. Ultrafiltration process has the following characteristics: (1) no phase ultrafiltration interannual variability, can be separated Hangzhou flat membrane device at room temperature and low pressure, low energy consumption and therefore Hangzhou Which is good quality flat membrane, about evaporation and freezing 1/2 ~ 1/5; (2) devices are small, simple structure, it is a low investment cost, easy to implement; (3) ultrafiltration process simply conveying pressurized liquid, the process is simple and easy to operate management; (4) was not a qualitative change in the separation of the enrichment process, which is suitable for the taste and heat-sensitive processing solution; (5) adapted to be separated from dilute solutions of macromolecules recovered precious trace substances and low concentrations of large molecular recovered material; and (6) capable of fractionating substances with different molecular weights; (7) the ultrafiltration membrane is a homogeneous continuum from polymer made, without any impurities off during use, ensure that the solution to be treated pure. From the above separation characteristics, ultrafiltration wide range of applications, but in the final analysis, the solution is mainly used in the purification, separation and concentration. MBR membrane integrity film production affect the water quality of the water. Hollow fiber membranes rupture due to some reason, the water side of the raw water directly into the product water side of the wire through the membrane rupture, resulting in poor water quality. Therefore, in practical applications should establish effective measures to detect the integrity of the film. Detection of membrane integrity measures are divided into two categories: direct and indirect. Direct method is based on the principle of the bubble point test, after the film is completely wetted, wire side of the membrane (permeate side) fed below the bubble point pressure of the compressed air, due to surface tension of liquid in the membrane pores, In addition due to diffusion through the very small amount of air, there is no significant gas flow through the membrane pore wetting. If the film or film defective wire breakage, the large number of defects from the compressed air will pass through to the other side of the membrane, then if the other side is filled with liquid bubbles will be observed continuously. The indirect method is to install the turbidity in the ultrafiltration system produced pipes, by monitoring the quality of water used to indirectly monitor the integrity of the film. Hangzhou flat membrane device flat membrane _ _ Chun-hsin environmental technology provided by the Nanjing Environmental Protection Technology Co., Ltd. Jun Xin. Nanjing Environmental Protection Technology Co., Ltd. Jun Xin (www.jxhb880.com) (www.jxhb880.com) strong, credible, in Nanjing sewage treatment equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Chun-hsin environmental technology and you hand into the brilliant, for a better future! You can also access (www.jxhb880.com/supply_details_40188600.html), for more information about the company.