Experimental study on membrane-sequencing bioreactor of membrane pollution and cleaning

Hollow Fiber Membrane-Sequencing Bioreactor(HF-MSBR) was used to treat bathing wastewater.It investigated on the characteristics of membrane fouling and its cleaning.Observation of membrane fouling and testing of membrane cleaning showed that reversible fouling was a major part of the membrane fouling in the membrane-sequencing bioreactor,the ratio of the reversible fouling increased in the operation cycle.Physical clean could effectively remove the membrane surface sediment deposition and granular sludge,total resistance in membrane filtration membrane resistance by the initial 265.22% down to the initial 142.39%,5‰ NaClO and 5‰ H2SO4 solution dip membrane module could make the membrane filtration properties fully recovered,the total resistance in membrane filtration was close to the initial state.