Browse > Article
http://dx.doi.org/10.22645/udi.2019.6.30.045

A Study on the Characteristics of Dewaterability and Calorific Value of Sewage Sludge by Mixing Waste Wood  

Jin, Yong Gyun (인천대학교 대학원 환경에너지공학과)
Jo, Eun Ji (인천대학교 대학원 환경에너지공학과)
Hyun, Wan Su (인천대학교 대학원 환경에너지공학과)
Han, Hyun Goo (인천대학교 대학원 환경에너지공학과)
Min, Sun Ung (인천대학교 대학원 환경에너지공학과)
Yeo, Woon Ho (인천대학교 대학원 환경에너지공학과/도시과학대학 환경공학전공)
Publication Information
Journal of Urban Science / v.8, no.1, 2019 , pp. 45-49 More about this Journal
Abstract
The land treatment of sewage sludge is necessary because sewage sludge is increasing year by year. Therefore the research of sewage sludge solidification is underway as one of the land treatment methods. However, the problem with existing sewage sludge solidification is that the moisture content of sewage sludge is high and the dewaterability is low. Because of high drying cost the efficiency of energy production is low and the calorific value is insufficient. So the disposer is supplied with a filtration and caloric aid for improving dewaterability and calorific value. In this study, it is aimed to improve the fuel value of sewage sludge by confirming the feasibility of waste wood as a filtration and caloric aid. The dewaterability was measured by CST-test and the calorific value was measured by bomb calorimeter. As a result the dewaterability and calorific value are improved in all of the samples. The dewaterability was improved as the waste wood was added in the sewage sludge. By adjusting the waste wood adding rate into the sewage sludge the dewaterability and calorific value of sewage sludge will be improved. This study confirmed possibility of the waste wood used as filtration and caloric aid.
Keywords
Sewage sludge; Waste wood; Dewaterability; CST; Calorific value;
Citations & Related Records
연도 인용수 순위
  • Reference
1 한국상하수도협회, 2004,"하수슬러지 처리방안", 국가환경산업기술정보시스템.
2 환경부, 2016,"2016 하수도 통계", 국가하수도정보시스템.
3 환경부, 2012, "폐목재 재활용제도 선진화 방안 마련 연구".
4 한국환경산업기술원, 2014,"하수슬러지 처리 및 연료화 기술동향".
5 한국환경산업기술원, 2016,"하수슬러지의 에너지화 기술동향".
6 엄형춘, 황선진, (2003), "하수슬러지 탈수성 개선을 위한 과산화수소 산화처리와 제지슬러지 혼합 탈수에 관한 연구", 한국폐기물자원순환학회, 2003(1), pp166-169.
7 조정원, 조준형, 윤미영, 장정은, (2003), "CST장치를 이용한 제지 슬러지 탈수에 관한 연구", 한국펄프.종이공학회, 추계학술발표논문집, pp345-352.
8 엄향춘, 2004, "제지슬러지 혼합탈수에 의한 하수 슬러지 탈수성 개선에 관한 연구",경희대학교 대학원 석사학위논문.
9 O. Sawalha & M. Scholz ,(2007), "Assessment of Capillary Suction Time (CST) Test Methodologies", Environmental Technology, 28(12), pp1377-1386.   DOI
10 환경부, 2014 개정, "고형연료제품 품질 시험.분석방법".
11 환경부, 2016 개정, "폐기물공정시험기준".