Desalination, Vol.191, No.1-3, 27-34, 2006
Effect of periodic backwash in the submerged membrane adsorption hybrid system (SMAHS) for wastewater treatment
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 l/h.m(2) for the wastewater studied.
Keywords:submerged membrane;hybrid system;adsorption;ion exchange;NOM;BTSE;modified Freundlich;periodic backwash