DEMONSTRATION PROJECT OF MEMBRANE BIOREACTOR FOR WASTEWATER REUSE

A24m3/d demonstration project with MBR was established for treatment and reuse of domestic sewage. The design, operating parameters of the project and mechanism of pollutant removal were enquired into with the analysis of technique and economy. It was shown that, in the system the effluent turbidity, BOD5, NH3-N were 1.8NTU, 7.2mg/L, 1.69mg/L respectively, colorless and tasteless in the effluent, no coliform being detectable; various indexes were superior to the requirements of water reuse standard. MBR could effectively cutoff pathogen and virus while effectively removing common pollutants. MBR was applied to the treatment and reuse of domestic sewage to lower pollution and also bring a certain economic benefits.