Hangzhou Bay water plant is designed for the first time on the ultrafiltration membrane and reverse osmosis membrane that is the "dual membrane method" applied to municipal water treatment projects. Membrane separation technology has always been considered "magic but delicate, expensive" water treatment technology. Membrane separation technology can achieve almost all the liquid material separation and concentration, can remove almost 99% of the various ions in the water, therefore, not only widely used in electric power, petrochemicals, iron and steel and other high-emission, highly polluting industry wastewater recycling, desalination of seawater desalination, desalination of brackish water desalination desalination, but also widely used in a variety of drinking water, medical ultrapure water production. However, due to the high cost of membrane technology equipment, high water quality requirements of the water source, poor stability of the system operation, therefore, in our country to the application of membrane technology in municipal water is still a blank.
The sewage treatment into purified water and even drinking water continuous membrane filtration water treatment system recently developed at the Tianjin Polytechnic University.
Two sets of the system is now in the Tianjin Development Area TEDA sewage treatment plant for installation and commissioning, will soon be put into use. Each set of continuous membrane filtration water treatment system capacity of 100 tons per hour, the daily sewage treatment capacity of up to 5000 tons.
The Miyun County Wastewater Treatment Plant reclaimed water reuse project was completed with technical support from Tsinghua, which adopts the world's most advanced Membrane-Bioreactor (MBR) technology. MBR is a new type of highly efficient wastewater treatment and reuse process that organically combines the membrane separation and traditional biological treatment process, integrating biodegradation and high efficiency of the membrane separation, and it has the advantages of good and stable effluent quality, high treatment load, high plant occupancy, and high efficiency in the treatment of wastewater. It is characterized by good and stable effluent water quality, high treatment load, small footprint, small mud production and simple operation and management. The Department of Environment has been engaged in the research of membrane-bioreactor technology for a long time since the "Ninth Five-Year Plan", and has undertaken the national "Ninth Five-Year Plan", "Tenth Five-Year Plan" and "863" projects, and has made a lot of achievements in the field of membrane-bioreactor technology. 863" projects, and has achieved a series of results in the research and development and application of membrane-bioreactor technology. These research results for Miyun County Wastewater Treatment Plant membrane bioreactor reclaimed water reuse project construction provides strong technical support.