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Características de MBR

Tiempo: 2020-04-15 Hits: 50

Compared with traditional water treatment methods, MBR has the following obvious features:

1. MBR puede atrapar eficazmente microorganismos en las aguas residuales y darse cuenta de la separación de la edad del lodo y el tiempo de retención hidráulica. Al ajustar el tamaño de la edad del lodo, los microorganismos con un ciclo de crecimiento prolongado como las bacterias nitrificantes y las bacterias desnitrificantes también pueden convertirse en bacterias dominantes, en cierta medida, la eficiencia de eliminación de nitrógeno de todo el reactor puede mejorarse, haciendo que la operación sea más flexible y estable


2. MBR has high solid-liquid separation efficiency, good and stable effluent effect, and little effect on the quality of influent water. Due to the high-efficiency trapping effect of the membrane, larger particles, organic molecules and bacteria in the reactor are trapped on the water inlet side of the membrane. At the same time, there is no need to consider sludge expansion.


3. The sludge concentration is high and the remaining sludge output is small. MBR can be operated under the conditions of high volume load and low sludge load, and the remaining sludge output is low, which greatly reduces the subsequent treatment costs.


4. The MBR reactor has a compact structure and concentrated process equipment, so it occupies a small area, and it is easy to realize integrated automatic control and convenient operation and management.


Although MBR has the above characteristics, it also has disadvantages, such as serious membrane pollution, low oxygen utilization rate, high investment cost, high energy consumption for water treatment, and chemical cleaning waste liquid will cause secondary pollution. In practical applications, membrane fouling is the biggest limiting factor affecting the promotion of MBR.