서지주요정보
Pilot-scale 침지형 생물막 공정의 막오염 특성 = Fouling characteristics in pilot-scale submerged membrane bioreactor
서명 / 저자 Pilot-scale 침지형 생물막 공정의 막오염 특성 = Fouling characteristics in pilot-scale submerged membrane bioreactor / 안현희.
발행사항 [대전 : 한국과학기술원, 1999].
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소장정보

등록번호

8009401

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 99013

휴대폰 전송

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리뷰정보

초록정보

Fouling characteristics were observed through continuous operation of pilot-scale submerged membrane bioreactor (SMBR) for 120days. Flux decline ratio (J/Jo) changed with suction pressure, backwash cycle. Fouling decreased effectively and flux increased practically when the reactor operated on suction at 300mmHg for 5 minutes followed by backwash for 1 minute. MLSS and SS of influent affected fouling characteristics so much. In particular, SS of influent such as cellulose material, hair and red pepper powder caused most of resistance in the beginning of operation, attaching the surface of membrane and blocking the pores. Therefore pretreatment are required to depreciate fouling caused by SS. It was thought that SMBR was stable to high and shock loading, because the removal efficiencies of COD and SS were kept to 97% and 100% in the case that influent characteristics changed irregularly. To know the cause of fouling under selected operating conditions, resistance induced by MLSS and ECP was measured using the stirred cell membrane. It was found that the cake resistance by ECP was a major part in total resistance by MLSS and the ratio of protein to carbohydrate in ECP was also important factor to increase the cake resistance. The prediction of flux and cleaning cycle was performed using resistance-in-series model and mass balance equation. ECP concentration at the begining of continuous operation was the most important parameter in order to enhance the flux at steady state.

서지기타정보

서지기타정보
청구기호 {MCE 99013
형태사항 iv, 56 p. : 삽화 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Hyun-Hee An
지도교수의 한글표기 : 신항식
지도교수의 영문표기 : Hang-Sik Shin
학위논문 학위논문(석사) - 한국과학기술원 : 토목공학과,
서지주기 참고문헌 : p. 52-56
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