Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Development of Biomedia using Waste Sewage Sludge - Evaluation of Basic Properties and Determination of Optimum Mixing Ratio of Sludge and Loess -

하수슬러지를 이용한 생물담체 개발 - 기초물성 평가 및 황토최적혼합비 결정 -

  • Jeong, Soo Il (Department of Civil Engneering, Pukyong National University) ;
  • Sohn, In Shik (Department of Civil Engneering, Pukyong National University) ;
  • Jeong, Seung Hyun (Department of Environmental Engneering, Kunsan National University) ;
  • Jeong, Byung Gon (Department of Environmental Engneering, Kunsan National University)
  • 정수일 (부경대학교 토목공학과) ;
  • 손인식 (부경대학교 토목공학과) ;
  • 정승현 (군산대학교 환경공학과) ;
  • 정병곤 (군산대학교 환경공학과)
  • Received : 2009.08.20
  • Accepted : 2010.02.18
  • Published : 2010.03.30
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Abstract

Dumping of waste sludge to ocean will be prohibited in Jananuary, 2012. Thus, various methods of sludge recycling are intensively studied. To present new way of sewage sludge recycling method, feasibility of making porous biological support media was investigated. Porous biological support media was made of sludge cake from sewage treatment plant and loess. They were mixed in varying ratio and burnt in high temperature to ensure sufficient mechanical strength. It was evaluated that about 67% of sewage sludge were ignitible. The ignitible portion play an important role in making pore in biomedia during ignition process. It was evaluated that optimum mixing ratio of loess to sludge cake was 25% in respect of compressive strength. In results of observation using scanning electron microscope (SEM), inner structure of biomedia become simple when the contents of loess are increased.

Keywords

References

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