膜生物反应器中的膜污染产生机理及其解决办法

he membrane polluted formation mechanism was analyzed in this paper. The factors which cause membrane pollution was also discussed in detail. The effects that are physics, physical-chemistry or concentration polarization could caused the blocking both the inner and outer surface of the membrane which result in the decreasing of membrane flux and the separation efficiency. film and surface contamination by in; structure and properties of the membrane and the pollutants in wastewater even its activities play an important role in the process of the membrane polluted. The change of operating conditions could decrease the membrane pollution. The membrane polluted control method and cleaning of membrane were discussed. The function of the polluted membrane could been restored that polluted membrane could be cleaned using physical or chemical methods.