서지주요정보
미생물 응집을 이용한 활성슬러지 공법의 최적화 연구 = Optimization study on activated sluge system using bioflocculation
서명 / 저자 미생물 응집을 이용한 활성슬러지 공법의 최적화 연구 = Optimization study on activated sluge system using bioflocculation / 박흥석.
저자명 박흥석 ; Park, Hung-Suck
발행사항 [서울 : 한국과학기술원, 1986].
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등록번호

4103784

소장위치/청구기호

학술문화관(문화관) 보존서고

MCIE 8609

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초록정보

In activated sludge process, continuous culture of heterogenic microorganisms grow on organic and inorganic substrates. Biooxidation removes soluble substrate and solid-liquid separation removes colloidal or suspended solids including biomasses from the wastewater. Maximum floc formation and bio-oxidation could be achieved at different microbial cell growth phases under different physical conditions. Generally, activated sludge process is so designed and operated that these two non-compatible removal mechanisms occur in the same aeration tank. Therefore maximum removal capacity of these processes is not fully utilized. Many studies have been conducted to make best use of respective process, while few researches tried to improve the both processes in simultaneous. The objective of these study is to optimize activated sludge system by incorporating a bioflocculation tank with high- and row-rate aeration tanks in which microbial growth phases differ. Two major tests have been made in this research; how biomass conversion is affected by MCRT (mean cell residence time) and how microbial flocculation and settling characteristics are affected by the effects of organic loading, mixing intensity, and sludge characteristics. The following conclusions were made in this study. 1. Y(observed yield coefficient) at 4-day MCRT was 1.6 times greater than at 10-day MCRT. 2. The low SVI(<100) appeared at both high F/M(1.2) and low F/M(0.05). The maximum SVI was 210 at F/M(1.0) 3. Mixing intensity affected more on supernatant COD than on SVI ; when SVI is smaller than 200, supernatant COD and SVI increase as mixing increases. While SVI of greater than 200, SVI and supernatant COD decrease as turbulence increases. 4. When the tank volume of low-growth rate is equal to that of high-growth rate, the original volume could be decreased by 11 to 18 percent. 5. It was proved that bioflocculation decreased effluent COD as well as contribute to the optimization of activated sludge process.

서지기타정보

서지기타정보
청구기호 {MCIE 8609
형태사항 ix, 56 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Hung-Suck Park
지도교수의 한글표기 : 신항식
지도교수의 영문표기 : Hang-Sik Shin
학위논문 학위논문(석사) - 한국과학기술원 : 토목공학과,
서지주기 참고문헌 : p. 51-54
주제 Sewage --Purification --Activated sludge process.
응집. --과학기술용어시소러스
활성 슬러지. --과학기술용어시소러스
Flocculation.
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