准好氧填埋场中间覆盖层CH<sub>4</sub>释放及减排潜力

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Abstract The CH₄ emission fluxes of a MSW semi-aerobic landfill located in Hebei Province were determined; meanwhile the CH₄ oxidation capacities of the intermediate cover material. Based on the above research, the CH₄ emission reduction potential of intermediate cover layer were analyses in semi-aerobic landfill. The surface CH₄ emission flux of intermediate cover layer is relatively large at noon and afternoon, and the average CH₄ emission fluxes for the landfill age of 4, 8, 12, and 16months were 4.79, 21.16, 81.04 and 7.44g/(m²·d), respectively. Moreover, the CH₄ oxidation capacities of intermediate cover material were:aged-refuse in anaerobic landfill > aged-refuse in semi-aerobic landfill > aged-cover soil > the mixture of aged-refuse and new cover soil (1:10, weight/weight) > animal manure compost > MSW composting > new cover soil. Theoretically, for the MSW landfill bodies with the age of 4, 8 and 16months, the CH₄ gas emissions can be completely oxidized by covering layer of the aged-refuse in anaerobic landfill, aged-refuse in semi-aerobic landfill, aged cover soil and stale garbage, or the mixture of aged-refuse and new cover soil (1:10, weight/weight). In addition, for the MSW landfill bodies with the age of 12months, the CH₄ gas emissions in area around 5~15m of air pipe can be theoretically oxidized by the cover layer of the aged-refuse or aged cover soil, but in area around 0~5m of air pipe cannot be completely eliminated by the cover materials.

Key words： semi-aerobic landfill CH₄ oxidation materials CH₄ emission fluxes CH₄ oxidation performance CH₄ emission reduction potential

Received: 14 June 2016

PACS:	X705
	X513

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	Articles by authors
	YUE Bo
	YAN Zhuo-yi
	HUANG Qi-fei
	WU Xiao-hui
	GAO Hong

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YUE Bo,YAN Zhuo-yi,HUANG Qi-fei等. CH₄ emission and CH₄ emission reduction potential of intermediate cover layer in semi-aerobic landfills[J]. CHINA ENVIRONMENTAL SCIENCECE, 2017, 37(2): 636-645.

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http://manu36.magtech.com.cn/Jweb_zghjkx/EN/ OR http://manu36.magtech.com.cn/Jweb_zghjkx/EN/Y2017/V37/I2/636

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