| Title |
Treatment of Food Wastewater using Submerged Membrane Separation Activated Sludge Process |
| Authors |
이동열(Dong Yeol Lee),차기철(Gi Cheol Cha),심진기(Jin Kie Shim),이영무(Yong Moo Lee),유익근(Ik Keun Yoo),안승호(Seung Ho Ann) |
| Abstract |
Membrane Bioreactor (MBR) process for food wastewater was studied to find the treatment chracteristics and the operating parameters at the hydraulic retention time (HRT) of 0.5 and 0.25day. Plate and frame membrane module was submerged in laboratory-scale MBR of 12L volume. Membrane suction-idle operation of l0minutes-on and 5minutes-off cycle showed the stable permeate flux and suction pressure. The BOD and COD removal efficiencies were obtained over 96% and 91%, respectively. During the operation, the increase of E260/DOC ratio (scale of non-degradable organic matter) was observed in the MBR. The resistance value of cake layer was measured 1.24 X 10^(11) (1/m) and this value showed more significant affect on flux drop than that of among other resistance layers. |