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자료유형
학술저널
저자정보
남의석 (극동대학교)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제67권 제11호
발행연도
2018.11
수록면
1,477 - 1,485 (9page)

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연구주제
📖
연구배경
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연구방법
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연구결과
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이 논문의 연구 히스토리 (11)

초록· 키워드

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There are two major issues for activated sludge process in sewage treatment plant. One is how to make sewage be more clean and the other is the energy saving in sewage treatment process. The major monitoring sewage qualities are chemical oxygen demand, phosphorus, nitrogen, suspended solid in effluent. These are transmitted to the national TMS(Telemetry Monitoring System) at every hour. If these exceed the environmental standard, the environmental charges imposed. So, these water qualities are to be controlled below the environmental standard in operation of sewage treatment plant. And recently, the energy saving is also important in process operation. Over 50% energy is consumed in blowers and motors for injection oxygen into aeration tank. So, with the water qualities to be controlled below the environmental standard, the energy saving also is to be accomplished for efficient plant management. Almost researches are aimed to control water quality without considering energy saving. AI techniques have been used for control water quality. AI modeling simulator provided the optimal control inputs(blower speed, waste sludge, return sludge) for control water quality. Blower speed is the main control input for activated sludge process. To make sewage be more clean, the excessive blower speed is supplied, but water quality is not better than the previous. In results, non necessary energy is consumed. In this paper we propose a new method that the energy saving also is to be accomplished with the water qualities to be controlled below the environmental standard for efficient plant management. Water qualities in only aeration tank are used the inputs of fuzzy models. Outputs of these models are chemical oxygen demand, phosphorus, nitrogen, suspended solid in effluent and have the environmental standards. In test, we found this method could save 10% energy than the previous methods.

목차

Abstract
1. 서론
2. 하수처리 활성오니 공정
3. 공정 퍼지 모델링
4. 제어시스템 구현
5. 성능평가
6. 결론
References

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UCI(KEPA) : I410-ECN-0101-2019-560-000080073