Influence of oxygen flow rate and compost addition on reduction of organic matter in aerated waste layer containing mainly incineration residue

作     者：Hiroshi Asakura Kei Nakagawa Kazuto Endo Masato Yamada Yusaku Ono Yoshiro Ono 

作者机构：Nagasaki University1-14 Bunkyo-machi Nagasaki 852-8521Japan National Institute for Environmental StudiesOnogawa 16-2TsukubaIbaraki 305-8506Japan Nippon Institute of Technology4-1 GakuendaiMiyashiro-machiMinamisaitama-gunSaitama 345-8501Japan Kyoto Institute of TechnologyMatsugasakiSakyo-kuKyoto 606-8585Japan 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2013年第25卷第1期

页      面：53-58页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：the project "Guarantee of Safety and Security for Toxic Wastes in Landfills(FY 2004 to 2006)" supported by the Special Coordination Funds for Promoting Science and Technology of the Ministry of Education Culture Sports Science andTechnology Japan 

主　　题：waste landfill aeration neutralization acceleration of stabilization 

摘      要：Landfilling municipal solid waste incineration （MSWI） residue alkalizes the waste layer, causing a subsequent decrease in microbial activity and a delay in the decomposition of organic matter. In this study, efficiencies of neutralization of the leachate and organic matter decomposition in the waste layer in a column filled with MSWI residue using aeration and compost addition were evaluated. Total organic carbon （TOC） reduction in the waste layer is large at high oxygen flow rate （OFR）. To effectively accelerate TOC reduction in the waste layer to which compost was added, a high OFR exceeding that by natural ventilation was required. At day 65, the pH of the leachate when OFR was above 102 mol-O2/（day.m3） was lower than that when OFR was below 101 mol-Oz/（day.m3）. At the same OFR, the pH of waste sample was lower than that of waste sample with compost. Although leachate neutralization could be affected by compost addition, TOC reduction in the waste layer became rather small. It is possible that humic substances in compost prevent the decomposition of TOC in MSWI residue.