서지주요정보
고율 혐기성 공정에서의 LCFA의 분해 및 저해 영향 = Degradation and inhibition of LCFA in high-rate anaerobic system
서명 / 저자 고율 혐기성 공정에서의 LCFA의 분해 및 저해 영향 = Degradation and inhibition of LCFA in high-rate anaerobic system / 김상현.
저자명 김상현 ; Kim, Sang-Hyoun
발행사항 [대전 : 한국과학기술원, 2001].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8011818

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 01007

SMS전송

도서상태

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초록정보

Long-chain fatty acids, major derivatives of lipid hydrolysis, are well-known inhibitors causing serious problems in biologically anaerobic systems treating fat containing wastewater. In this work, the synthetic wastewater containing major LCFA was digested in single-phase system, a UASB (upflow anaerobic sludge bed) reactor and two-phase system composed of an acidogenic reactor using a CSTR (continuously stirred tank reactor) and a methanogenic reactor using a UASB reactor. LCFA did not induce the significant toxic effect in both of the single-phase and two-phase systems at up to LCFA mixture of 3,000 mg COD/L (1,040 mg/L, 3.78 mM). In the single-phase system, the removal efficiencies of COD and LCFA were above 90 % and the methane conversion was above 75% of a theoretical value. In the acidogenic reactor of the two-phase system, about 5∼15% of unsaturated LCFA was saturated, however it did not affect on inhibition. The removal efficiencies of the two-phase system were the same levels as those of the single-phase system and, at maximum, 25% of LCFA became scum layer at the concentration above 2,500 mg COD/L. Sludges from both continuous systems were used as the inoculum in batch test for the examination of the inhibitory effect of LCFA. LCFA inhibited acetate degradation more than propionate degradation. Unsaturated LCFA were more toxic than saturated ones on the methane production from VFA. However, the beta oxidation of itself was done more quickly than that of saturated ones.

서지기타정보

서지기타정보
청구기호 {MCE 01007
형태사항 v, 47 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Sang-Hyoun Kim
지도교수의 한글표기 : 신항식
지도교수의 영문표기 : Hang-Sik Shin
학위논문 학위논문(석사) - 한국과학기술원 : 토목공학과,
서지주기 참고문헌 : p. 44-47
주제 지방산
고율 혐기성 공정
저해 영향
불포화
상분리
LCFA
UASB
inhibitory effect
unsaturated
phase separation
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