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Membrane Treatment Technology For Municipal Sewage
- May 28, 2018 -

Membrane treatment technology for municipal sewage


It is a good technical method to use a membrane treatment technology for sewage treatment in a large number of sewage treatment technologies. Its principle of action is to rely on external pressure, using the membrane's selective permeability to make the sewage pass through the membrane while the pollutants are coated. Interception, in order to achieve the purpose of removing water pollutants. There are many types of membranes, ranging from organic membranes to inorganic membranes. Organic membranes such as polyethylene, polytetrafluoroethylene and other polyolefins, cellulose, etc.; inorganic membranes such as ceramic membranes, glass membranes, and the like.


Membrane treatment technology for municipal sewage


Membrane treatment technology is different from biological treatment technology, and there is no strict requirement for temperature, etc., and it will not change the physicochemical properties before and after treatment of pollutants. Therefore, it has great potential in municipal sewage treatment. The application value of membrane treatment technology in municipal sewage treatment is mainly reflected in the reuse of water. In recent years, there have been many examples of successful use of membrane treatment technology to achieve the purpose of recycling water. For example, in 2000, Singapore established a membrane treatment water reuse project demonstration project to treat wastewater from secondary treatment of sewage treatment plants. The treated sewage is used for greening and flushing of toilets; Tsinghua University in China uses sand filtration-ultrafiltration. The filtration process is designed to construct a water reuse device to treat the secondary treated sewage in the wastewater treatment plant with a daily treatment capacity of 500m3. The COD, BOD, and E. coli, etc. in the treated water are significantly reduced.