Effect of periodic backwash in the submerged membrane adsorption hybrid system(SMAHS)for wastewater treatment

摘要

The submerged membrane adsorption hybrid system(SMAHS)is an attractive solution in treating wastewater;however it faces membrane fouling although to a less extent.In this study,different adsorbents and resins were investigated in order to find a substitute to the powdered activated carbon(PAC)The effect of new backflush was also studied in further reducing the membrane fouling.The SMAHS led to 72-86% dissolved organic carbon(DOC)removal.A detailed study on the transmembrane pressure development led to a conclusion that there is a critical flux and this value is around 16 1/h.m~2 for the wastewater studied.