Membrane bioreactor (MBR)
6, performance
1, the main performance of peripheral drive scraper
(1) the bottom of the pool scraping mud, water skimming. The driving device adopts shaft mounted gear reduction motor and driving roller, which has the advantages of compact structure and high mechanical efficiency;
(2) parallel to the dislocation line scraping board, good continuity, high efficiency; stainless steel scraper bottom mud scraper rubber plate, to ensure that the scraping mud completely clean, there will not be floating mud phenomenon.
(3) the bottom slope 1:10, scraping sludge resistance can be neglected; hinged with special structure, strong overload capacity.
(4) the selection of square steel structure, high strength, the hot dip galvanized after spray paint technology, strong anticorrosion performance.
(5) the operation is simple, can realize the remote control.
Three, the scope of application:
Applicable to all kinds of industrial enterprises, hotels, restaurants, schools, hospitals, residential areas, laundry and other waste water treatment, water treatment and the upgrading of the original sewage facilities, etc..
Industrial and mining enterprises:
1.--- food sewage treatment
2.--- pharmaceutical, sugar, alcohol, leather, paper, printing and dyeing of high concentration organic wastewater. It is difficult to meet the requirement of discharge standard by the conventional treatment method for this kind of wastewater, and A2-MBR can be treated effectively with its technical advantages, and the effluent can reach the standard of return.
3.--- livestock sewage treatment
4.--- the original sewage treatment station of the original sewage treatment station renovation, water capacity, reuse, transformation, etc.
Civil building:
1.--- office buildings, residential quarters, hospitals, hotels, schools, stadiums and other types of civil construction of the sewage treatment or water reuse system.
2.--- no drainage pipe network system, such as tourist scenic area, resort, villas, hotels, small settlements, stations, charging stations, temporary sites, such as the treatment of domestic sewage.
3.--- car wash, laundry back water treatment, etc..
Four, MBR main specifications model:
Five, characteristics
(1) the removal rate of pollutants is high, the ability of resisting sludge expansion is strong, the water quality is stable and reliable, and there is no suspended matter in the water;
(2) membrane bioreactor to achieve a complete separation of the reactor sludge age STR and hydraulic retention time HRT, design, operation is greatly simplified;
(3) membrane mechanical closure effect to avoid the loss of bacteria, biological reactor can maintain a high concentration of sludge, so as to improve the volume load and reduce the sludge load and MBR omitting the secondary sedimentation tank, greatly reducing the occupied area;
(4) since SRT is very long, the bioreactor plays the role of "sludge nitrification pond", which can significantly reduce the sludge production, low yield and low sludge treatment cost;
(5) the SRT was prolonged due to the closure of the membrane, which was beneficial to the slow growth of microorganisms. Such as the environment of the growth of the nitrification bacteria, the system can improve the nitrification capacity, at the same time, it is beneficial to improve the processing efficiency of the difficult degradation of macromolecular organic matter and to promote its thorough decomposition;
(6) activated sludge aeration MBR not because of water production losses in operation process, activated sludge will change due to changes in the concentration of organic matter and achieve a dynamic balance, which makes the system stable effluent and resistance to shock load characteristic;
(7) the large hydraulic circulation resulted in the uniform mixing of the sewage, so that the activated sludge had good dispersion, greatly increased the specific surface area of activated sludge. The high dispersion of activated sludge in MBR system is another reason for improving the effect of water treatment. This is the common biochemical water treatment technology to form a larger strain of the gel group compared to the difficult;
(8) membrane bioreactor is easy to be integrated, easy to realize automatic control, convenient operation and management.
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