| Title |
Application of Pulsation Cleaning Technique with In - line Flocculation CFMF ( Cross Flow Micro - Filtration ) for Domestic Sewage Treatment |
| Authors |
이승환 ; 안규홍 ( Seung Hwan Lee ; Kyu Hong Ahn ) |
| Abstract |
Crossflow microfiltration is a pressure driven membrane process allowing better permeate flux by shearing action of flow. It can remove most of the impurities found in water and wastewater. But there are still main problems to be solved due to fouling, deposition and internal clogging, which reduce the efficiency of separation. Inline flocculation CFMF (Cross Flow Micro Filtration) with pulsation cleaning technique was found to be one of the desirable techniques to avoid or minimize these drawbacks. In AIT(Asian Institute of Technology) domestic wastewater treatment, alum along with PAC (Powdered Activated Carbon) were added to investigate the performance of this system. Optimal amount of alum and PAC dose which corresponded to maximum flux was clear while the increase of the chemicals produced better effluent quality. The comparison of pulsation cleaning technique at different chemicals doses indicated that this technique was more effective in improving the permeate flux when PAC along with alum was added than no chemicals or any alum was added. This improvement was 26%. |