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Reclaimed water (MBR membrane) equipment
Reclaimed water (MBR membrane) equipment
Product details

Membrane bioreactor (MBR) is a novel water treatment technology that combines membrane separation units with biological treatment units. It uses membrane components instead of secondary sedimentation tanks to maintain high activated sludge concentration in the bioreactor, reduce the footprint of sewage treatment facilities, and reduce sludge volume by maintaining low sludge load. Compared with traditional biochemical water treatment technology, MBR has the following main characteristics: high treatment efficiency and good effluent quality; Compact equipment with small footprint; Easy to achieve automatic control and simple operation management. Since the 1980s, this technology has been increasingly valued and has become one of the research hotspots. At present, membrane bioreactors have been applied in more than ten countries including the United States, Germany, France, and Egypt, with scales ranging from 6m3/d to 13000m3/d.

Technical advantages:

Under high MLSS and microfiltration membrane filtration, the effluent quality is stable and of high quality. Under high volume load, the residence time is short, the MBR process is simpler than traditional systems, and the footprint is reduced, completely replacing sedimentation tanks and sand filtration units. The footprint is saved by 30% compared to traditional methods, and there is no sludge settling problem
The MLSS concentration in the reaction tank can reach over 10000mg/L, with strong load shock resistance and effective treatment of high concentration organic wastewater. Under microfiltration membrane filtration, the separation effect is much better than traditional sedimentation tanks and sand filtration treatment units. The effluent water quality is good and stable, with low suspended solids and turbidity. Generally, low pollution municipal wastewater can be directly used as intermediate water or on-site resource recovery water after treatment. Beneficial for the interception, growth, and reproduction of slowly proliferating nitrifying bacteria, the nitrification efficiency of the system is improved, and the A/O reaction has efficient denitrification function. The A/O and A2O methods can effectively remove ammonia nitrogen and phosphorus, especially suitable for use in water quality control areas. Microfiltration membranes can block most bacteria and microorganisms, reduce the amount of disinfectant added, and obtain safe reuse water. Low energy consumption and low operating costs. Biological interception in the pool can achieve a longer SRT and reduce sludge volume by more than half under the operation of high sludge age and biological self digestion. The amount of low waste sludge is lower than that of traditional activated sludge method, with a longer sludge discharge cycle and greater operational flexibility. The biofilm tube system belongs to the filtration system and high MLSS, which can easily overcome the high variability of wastewater. The system is designed with PLC control, which is easy to operate and maintain, and can achieve automated control, making it convenient to manage the high concentration of biological sludge operation; MLSS =6000 ~10000mg/l , It can reduce the volume of the biological aerobic sludge tank and be designed in a closed manner, with low pollution, low noise, and low odor. Membrane separation greatly improves the efficiency of treating large molecules in wastewater that are difficult to degrade. Standard mobile modular design, fast and simple installation, easy to expand in stages, suitable for retrofitting existing sewage treatment plants, only requiring the addition of MBR membrane equipment.
Add MBR program to the original program
The original program for process changes includes two sedimentation tanks, fast mixing tanks, slow mixing tanks, pressurized flotation, one set of upward flow filtration, and two activated carbon towers. Almost all can be replaced by MBR tanks. Change one of the sedimentation tanks to a flat bottom and place it in the MBR module. It can replace other existing programs.
Better treatment of water quality before discharge after pressurized flotation:
COD=182mg/l,SS=6.5mg/l,
NH4-N=0.4mg/l, NO3-N=31.4mg/l Water quality after MBR treatment:
COD=165.5mg/l,SS=5.7mg/l,
NH4-N=0.19mg/l,NO3-N=25mg/l
Operation and maintenance are easier, with lower costs. The original program was complex, with numerous pool bodies and machinery, and personnel operation skills and complexity were high. More manpower is required. After being replaced by MBR tank, backwashing is automatically controlled by PLC. The chemical washing procedure is simple, and each group is implemented separately. Personnel operation management is extremely easy.
The cost of setting up the sedimentation tank is high, and the machinery is mostly utilized from the existing sedimentation tank space.
Due to the large number and complexity of machinery, consumables have a large quantity. Activated carbon must also be activated or updated. Few mechanical quantities and simple forms


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