상하수도학회지 (Journal of Korean Society of Water and Wastewater)
- 제10권3호
- /
- Pages.92-99
- /
- 1996
- /
- 1225-7672(pISSN)
- /
- 2287-822X(eISSN)
막오염현상이 중공사정밀여과막의 물투과특성에 미치는 영향
Influences of Membrane Fouling on Water Permeability of Hollow Fiber Microfiltration Membrane
초록
The effects of membrane fouling on the water permeability were examined using the hollow fiber microfiltration (HMF)membrane. A membrane module with a pore size of 0.1 micron was submerged in the permeation tank and water bath. The applied pressure was 12.4 kPa for direct solid-liquid separation of activated sludge. As the concentration of MLSS(880~2180mg/l) of the feed solution increased, the decreasing rates of the water flux increased and the membrane was clogged more rapidly. The water flux through the membrane did not increase effectively even with the increase in the applied pressure(40.0~93.3kPa). When the membrane was cleaned with water, the recovery rate of water flux were larger for lower applied pressure. The results indicated that the process of direct solid-liquid separation using HMF membrane was effective at lower pressure.
키워드