MBR technology in wastewater treatment abroad in research and application of membrane separation technology in wastewater treatment began in the late 1960s, the United States, # 1969 Smith et al. For the first time with the ultrafiltration membrane activated sludge method for combining municipal wastewater treatment technology research, the process boldly replaced with membrane separation technology in the conventional activated sludge secondary settling tank, the film has the physical characteristics of the efficient use of interception, so within the bioreactor to maintain a high concentration of sludge at F / M ratio low work, so you can get as much as possible so that the oxidative degradation of organic matter to improve the removal efficiency of the reactor, which is the first prototype of the MBR. Into the 1970s Yantai Which cheap flat membrane, MBR further research on depth, 1970, Hardt et al. Used completely mixed with the ultrafiltration membrane bioreactor combined process sewage, won 98% of COD removal and 100% removal of bacteria results. 1971, Bemberis and others in the MBR wastewater treatment plant sunshine flat membrane test rankings, and achieved good results. 1978, Bhattacharyya et al exceed membranes for municipal wastewater treatment, access to non-potable water reuse. 1978, Grethlein anaerobic digesters and membrane separation have been studied for the treatment of domestic sewage, BOD and TN removal rates were 90% and 75%. MBR membrane integrity film production affect the water quality of the water. Hollow fiber membranes due to some reason, the price of flat membrane fracture Texas, raw water inlet side of the water directly into the production 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 a flat membrane bubble point test, after the film is completely wet, wire side of the membrane (permeate side) pass into the lower than the bubble point pressure of the compressed air, due to the surface tension of the liquid in the membrane pores effect, due to diffusion through the addition of a 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. Which is good quality flat membrane Weifang | flat film | Jun Xin 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_39689910.html), for more information about the company.