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Environmental Engineering Research 2012;17(4): 191-196. DOI: https://doi.org/10.4491/eer.2012.17.4.191
A Study on the Mass Balance Analysis of Non-Degradable Substances for Bioreactor Landfill
Seung-Kyu Chun
Green Technology Research Center, Sudokwon Landfill Site Management Corporation, Incheon 404-706, Korea
Corresponding Author: Seung-Kyu Chun ,Tel: +82-32-5609-570, Fax: +82-32-5609-649, Email: tocsk@naver.com
Received: October 8, 2012;  Accepted: November 6, 2012.
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ABSTRACT
Analysis of hydrological safety as well as the determination of many substance concentrations are necessary when bioreactor systems are introduced to landfill operations. Therefore, hydrological and substance balance model was developed since it can be applied to various bioreactor landfill operation systems. For the final evaluation of the model’s effectiveness, four different methods of injections (leachate alone, leachate and organic waste water, leachate and reverse osmosis concentrate, and all the above three combination) was applied to 1st landfill site of Sudokwon landfill. As a result, the water content of the hypothetical cases for four different systematic bioreactors is projected to be increased up to 35.5% in next 10 years, and this indicated that there will be no problems in meeting the hydrological safety. Also, the final Cl- concentration after 10-yr time period was projected to be between from minimum 126 to maximum 3,238 mg/L, which could be still a decrease from the original value of 3,278 mg/L. According to the proposed model, whether the substance concentration becomes increased or decreased largely depends on the ratio of initial quantity of inner landfill leachate and the rate of injection.
Keywords: Bioreactor landfill | Leachate recirculation | Mass balance | Substance accumulation
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