MBR has high removal efficiency for pollutants. High removal efficiency for pollutants. High removal efficiency for pollutants. High removal efficiency for pollutants. Has greater flexibility and practicality, short process and small footprint! Flexible water treatment. Solve the problem of difficult disposal of excess sludge. Due to the high-efficiency trapping effect of the membrane module, all activated sludge is trapped in the reactor, so that the sludge concentration in the reactor can reach a high level, up to 40-50g/L, which greatly reduces the biological reaction The sludge load in the device improves the removal efficiency of MBR for organic matter. The average removal rate of COD in domestic sewage is above 94%, and the average removal rate of BOD is above 96%.