Effects of ammonia on methane oxidation in landfill cover materials

被引：12
|
作者：
Long, Yu-Yang [1 ]
Liao, Yan [1 ]
Miao, Jing-Yu [1 ]
Shen, Dong-Sheng [1 ]
机构：
[1] Zhejiang Gongshang Univ, Zhejiang Prov Key Lab Solid Waste Treatment & Rec, Hangzhou 310018, Zhejiang, Peoples R China
来源：
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH | 2014年 / 21卷 / 02期
基金：
中国国家自然科学基金;
关键词：
NH3; CH4; Landfill; Cover layer; Aged refuse; SOIL; NITROGEN; GAS; CH4; FERTILIZATION; INHIBITION; RESPONSES; NITRITE; NITRATE;
D O I：
10.1007/s11356-013-1963-8
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
The effects of ammonia (NH3) on CH4 attenuation in landfill cover materials consisting of landfill cover soil (LCS) and aged municipal solid waste (AMSW), at different CH4 concentrations, were investigated. The CH4 oxidation capacities of LCS and AMSW were found to be significantly affected by the CH4 concentration. The maximum oxidation rates for LCS and AMSW were obtained at CH4 concentrations of 5 % and 20 %(v/v), respectively, within 20 days. CH4 biological oxidation in AMSW was significantly inhibited by NH3 at low CH4 concentrations (5 %, v/v) but highly stimulated at high levels (20 % and 50 %, v/v). Oxidation in LCS was stimulated by NH3 at all CH4 concentrations due to the higher conversion of the nitrogen in NH3 in AMSW than in LCS. NH3 increases CH4 oxidation in landfill cover materials.
引用
收藏
页码：911 / 920
页数：10
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