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서지정보
ㆍ발행기관 : 한국열환경공학회
ㆍ수록지정보 : 열환경공학 / 12권 / 1호
ㆍ저자명 : 박민숙, 정성배, 김철규
ㆍ저자명 : 박민숙, 정성배, 김철규
목차
1. 서 론2. 실험 방법
3. 실험 결과 및 고찰
Ⅴ. 결 론
참고문헌
한국어 초록
영어 초록
The first and second treated sewage sludge at the sewage disposal plant was researchedand analyzed by heavy metal analysis, proximate analysis, elementary analysis, and
analysis of heating value of dried sewage sludge from February to October, as a basic
characteristic research about sewage sludge. Also, research on optimal carbonization
conditions for dried sewage sludge to utilize sewage sludge as fuel after carbonization
was conducted from the viewpoint of energy recovery rate and low heating value.
The results of analyzing volatile matter and fixed carbon in dried sewage sludge were
as follows. Volatile matter in primary sewage sludge was average 13%; volatile matter in
secondary sewage sludge was average 11%; fixed carbon in primary sewage sludge was
average 3%; fixed carbon in secondary sewage sludge was 3%. The analysis of low heating
value of dried sewage sludge showed that low heating value of primary sewage sludge was
3,300∼3,900kcal/kg, and primary sewage sludge in July and August was not good as fuel
due to low caloric value. Low heating value of primary sewage sludge was higher than that
of secondary sludge by 500∼800 kcal/kg. The low heating value of carbonization products
had a tendency to decrease due to emission of volatile organic matters and degradation of
organic materials as the treatment temperature and time got higher in the carbonization
process of sewage sludge.
The analysis of low heating value of primary sewage sludge indicated that optimal
carbonization condition was 30~60 minutes carbonization treatment at 150~250℃, and in
this condition low heating value was 2,454.16 kcal/kg and energy recovery rate was 65%.
For the case of Secondary sewage sludge, optimal carbonization condition was 30~60
minutes carbonization treatment at 150~250℃ as well, and in this condition low heating
value was about 2,020kcal/kg and energy recovery rate was 54%.
참고 자료
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