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Assessment of internal condition of waste in a roofed landfill

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Title: Assessment of internal condition of waste in a roofed landfill
Authors: Zhang, Xin Browse this author
Matsuto, Toshihiko Browse this author →KAKEN DB
Keywords: Roofed landfill
Food waste
Moisture balance
Landfill gas
in situ aeration test
Issue Date: Jan-2013
Publisher: Elsevier
Journal Title: Waste Management
Volume: 33
Issue: 1
Start Page: 102
End Page: 108
Publisher DOI: 10.1016/j.wasman.2012.08.008
PMID: 22989405
Abstract: Recently, roofed landfills have been gaining popularity in Japan. Roofed landfills have several advantages over non-roofed landfills such as eliminating the visibility of waste and reducing the spread of offensive odours. This study examined the moisture balance and aeration conditions, which promote waste stabilisation, in a roofed landfill that included organic waste such as food waste. Moisture balance was estimated using waste characterization and the total amount of landfilled waste. Internal conditions were estimated based on the composition, flux, and temperature of the landfill gas. Finally, in situ aeration was performed to determine the integrity of the semi-aerobic structure of the landfill. With the effects of rainfall excluded, only 15% of the moisture held by the waste was discharged as leachate. The majority of the moisture remained in the waste layer, but was less than the optimal moisture level for biodegradation, indicating that an appropriate water spray should be administered. To assess waste degradation in this semi-aerobic landfill, the concentration and flow rate of landfill gas were measured and an in situ aeration test was performed. The results revealed that aerobic biodegradation had not occurred because of the unsatisfactory design and operation of the landfill.
Type: article (author version)
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 松藤 敏彦

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