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BioMed Research International
Volume 2014 (2014), Article ID 167197, 10 pages
http://dx.doi.org/10.1155/2014/167197
Research Article

Impact of MSWI Bottom Ash Codisposed with MSW on Landfill Stabilization with Different Operational Modes

1Key Laboratory of Hangzhou City for Ecosystem Protection and Restoration, College of Life and Environmental Science, Hangzhou Normal University, Hangzhou 310036, China
2College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
3College of Life Science, Taizhou University, Linhai 317000, China
4Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Zhejiang Gongshang University, Hangzhou 310018, China

Received 18 December 2013; Accepted 19 February 2014; Published 23 March 2014

Academic Editor: Dawen Gao

Copyright © 2014 Wen-Bing Li et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of the study was to investigate the impact of municipal solid waste incinerator (MSWI) bottom ash (BA) codisposed with municipal solid waste (MSW) on landfill stabilization according to the leachate quality in terms of organic matter and nitrogen contents. Six simulated landfills, that is, three conventional and three recirculated, were employed with different ratios of MSWI BA to MSW. The results depicted that, after 275-day operation, the ratio of MSWI BA to fresh refuse of 1 : 10 (V : V) in the landfill was still not enough to provide sufficient acid-neutralizing capacity for a high organic matter composition of MSW over 45.5% (w/w), while the ratio of MSWI BA to fresh refuse of 1 : 5 (V : V) could act on it. Among the six experimental landfills, leachate quality only was improved in the landfill operated with the BA addition (the ratio of MSWI BA to fresh refuse of 1 : 5 (V : V)) and leachate recirculation.