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Environmental Engineering Research 1998;3(1): 1-10.
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Biological Co-treatment of Leachate with Sewage and On-site Physicochemical Treatment |
Duk Chang1†, Soo Young Kim1, Joon Moo Hur1, and Tai Hak Chung2 |
1Department of Environmental Engineering, Kon-Kuk University, Kwangjin-Gu, Seoul 143-701 2Department of Civil, Urban & Geosystem Engineering, Seoul National University, Kwanak-Gu, Seoul 151-742 |
Corresponding Author:
Duk Chang , |
Received: February 8, 1998; Accepted: March 4, 1998. |
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ABSTRACT |
Feasibility of off-site combined treatment of leachate from a mature codispodal landfill and its on-site pretreatment option were evaluated in this study. Combined treatment of leachate from the mature codisposal landfill was possible without adverse effect on activated sludge system up to 1% leachate addition, while the system performances worsened at leachate addition higher than 10%. Combined treatment up to 1% leachate addition also had no detrimental effect on sludge digestion. Adsorption-flocculation was an effective pretreatment option for reduction of organic loading and unexpected hazardous substances. |
Keywords:
Activated sludge | Adsorption-chemical precipitation | Co-treatrnent | Landfill leachate |
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