The membrane bioreactor is generally applicable to the daily living wastewater treatment and recycling of decentralized customers such as residential quarters, hotels, resorts, colleges, office buildings, and the organic chemical wastewater treatment of wine, tanneries, food, chemical plants and other fields. The water yield of MBR is often used for non edible purposes such as irrigation, cleaning, environmental sanitation, outdoor landscaping, etc. It is applicable to sewage treatment and reclaimed water treatment of various manufacturing enterprises, hotels, restaurants, colleges, hospitals, outpatient clinics, residential quarters, self-service laundry, etc., as well as the upgrading and renovation of the original wastewater equipment.

MBR (Membrane Bioreactor, commonly referred to as MBR) water treatment technology is a highly effective biochemical water treatment technology combining biotechnology and membrane technology. Membrane bioreactor is a highly effective sewage treatment technology combining membrane separation equipment and traditional sludge process. Because of the filtration effect of membrane, mbr membrane processing process, organisms are completely trapped in the bioreactor, The separation of retention time of hydropower generation and sludge age has been completed, so as to maintain a high MLSS in the bioreactor. Strong nitrification reaction capacity and high pollutant sludge load.

Mbr membrane is a new water treatment technology, which is closely combined with high efficiency membrane separation equipment and activated sludge process. The application of membrane replaces the secondary sedimentation tank in the activated sludge process, develops solid-liquid separation equipment, and reasonably achieves the goal of sludge separation. The flexible use of the membrane's high interception effect can reasonably intercept the water quality stabilizer and completely store it in the bioreactor to ensure the smooth development of the diazotization reaction. The price of mbr membrane components can reasonably remove ammonia nitrogen, prevent the outflow of sludge, and can intercept the bio macromolecular organic compounds that are difficult to dissolve at a time, increasing their stay time in the tubular reactor, Make it dissolve to the maximum extent. After the application of MBR technology, the sludge load of key pollutants can reach: COD ≥ 93%, SS=. The water yield, suspended solids and turbidity are almost zero, the solved water body is excellent and stable, can be reused immediately, and the waste water recycling is completed.

China's scientific research on mbr membrane can be divided into several levels

Mbr membrane (MBR) is a new type of water treatment technology, which is closely combined by membrane separation unit and biological control components. Membrane components are used to replace secondary sedimentation tank in the bioreactor to maintain the basic enzyme sludge sedimentation ratio, reduce the floor area of wastewater treatment equipment, and reduce the amount of sludge according to the maintenance of low sludge concentration. Compared with traditional biochemical water treatment technology, MBR has the following

Main features: high efficiency and good water quality; Compact machinery and equipment, small land occupation; Easy to complete automatic control system, simple operation and management method. Since the 1980s, this technicality has gained more and more attention and has become one of the hot spots of scientific research on the Internet. Membrane bioreactors have been used in more than ten places in the United Kingdom, France, the Netherlands and India, with business scales ranging from 6m3/d to 13000m3/d.

The scientific research on mbr membrane in china has not been more than ten years, but the progress is very rapid. The scientific research on MBR in China can be roughly divided into several levels: (1) explore the composition of different biological process treatment and membrane separation units. The biological reaction process is expanded from the activated sludge process to the touch air oxidation process, biological fiber mask, the composite processing process closely combining the activated sludge process and biofilm, and two-phase anaerobic fermentation process; (2) Scientific research on the elements, principles and mathematical analysis models of hazard solution and membrane environmental pollution, explore suitable practical operation standards and main parameters of processing technology, try to alleviate membrane environmental pollution, mbr membrane components, and improve the solution capability and operation reliability of membrane components; (3) The application scope of MBR is expanded. The research objects of MBR are expanded from domestic sewage treatment to organic chemical sewage (food sewage, wine sewage) with high concentration and insoluble chemical wastewater (petrochemical wastewater, wastewater treatment, etc.), but the domestic sewage treatment is the main solution.