화학공학소재연구정보센터
Applied Chemistry, Vol.10, No.2, 497-500, November, 2006
막결합형 생물반응조에서 생물막 구조의 변화
Changes in biofilm architecture in a membrane bioreactor
Changes in biofilm architecture in a membrane filterability were investigated with and without membrane fouling reducer (MFR) in submerged membrane bioreactor (MBR). Using confocal laser scanning microscopy (CLSM) and image analysis techniques. the proosity and biovolume of a biofilm formed on a membrane surface was analyzed along the length of hollow fibers. The porosity of the biofilm changed greatly along the length of hollow fibers. The lowest porosity was observed at the potted ends of membrane fibers which can be easily compressed by suction pressure. The biovolume of the biofilm near the potted ends was greater than that near the free-moving ends. With the additon of MFR. porosities were increased whereas biovolumes were decreased along the length of the fibers. The spatial distributions of both porosities and biovolumes. however, became more uniform anlong the lengthe of fibers.