http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 김종철 ( Jong Chui Kim ) (검색결과 1 건)
- 무료
- 기관 내 무료
- 유료
-
최영익 ( Young Ik Choi ),김종철 ( Jong Chui Kim ),정병길 ( Byung Gil Jung ) 한국수처리학회 2011 한국수처리학회지 Vol.19 No.5
This research was to evaluate the physical and chemical characteristics through the proximate analysis, elements analysis, calorific value analysis and the leaching and content analysis of heavy metals for the RDF(refuse derived fuel) recycling of sewage sludge cake as a thermoelectric power plant and so on. Eight sewage treatment facilities (Kangbyun, Suyeong, Nambu, Noksan, Joongang, Yeongdo, Dongbu and Seobu) in Busan City were selected, and their sludge samples were collected. The results of analyzing the characteristics for the sewage sludge revealed 78.7% of water content, 6.69% of ash content, 14.01% of volatile content, 0.64% of fixed carbon and pH 7.6 in regards to the total mean of the industrial analysis and pH. It satisfies the supplementary fuel standard for thermal power plant of below 35% in ash content. The element analysis revealed in the mean of 34.40% of carbon (C), 5.74% of hydrogen (H), 16.29% of oxygen (O), 4.74% of nitrogen (N), 0.68% of sulfur (S), 1.57% of phosphorous (P) and 0.26% of chlorine (CI), thereby satisfying also the fuel production standard of below 2% of sulfur content. In addition, in the case of caloric values, the results indicated that the Joongang sewage treatment plant has the highest value of 4,285 kcal/kg and the Nambu sewage treatment plant has the lowest value of 2,358 kcal/kg. They respectively satisfy the fuel production standards of above 3,000 kcal/kg and 2,000 kcal/kg. In regards to the leaching test, the results showed that the item of chromium (Cr6+) exceeded the standard at the Kangbyun and Seobu sewage treatment plants. The results for heavy metals content analysis revealed that hydrargyrum(Hg), cadmium(Cd) and plumbum (Pb) exceeded the standard at the Kangbyun, Joongang, Yeongdo and Suyoung sewage treatment plants. Thereby, their sludges were inappropriateness as the thermal power plant supplementary fuel.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
