有机生活垃圾多组分联合厌氧降解产甲烷性能研究

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Abstract In order to clarify whether the multi-component mixture of municipal solid waste may have an impact on its methane production performance, effects of inoculum sources on the anaerobic degradation of single and multi-component materials were studied by conducting biochemical methane potential (BMP) experiments on food waste (FW), newspaper (NP) and branch (BR) at mesophilic temperature (37±1)℃. The modified Gompertz model was used to fit and analyze the kinetic characteristics of the methanogenesis process, and a quantitative index method was developed to evaluate the impact on co-degradation performance. The results of experiments and model fitting exercises showed that the inoculum source had no significant effect on the biodegradability of single and multi-component materials, but had significant effect on its degradation rate. In addition, although the mixing of the components promoted the rate of degradation at the initial stage of the test, only the tri-component mixture test group showed a significant synergistic promotion in the final cumulative methane yield, and the methane yield increased by 16% and 14%, respectively, compared with the mono- degradation of materials with two different inocula.

Key words： municipal solid waste landfill gas production model anaerobic degradation biochemical methane potential anaerobic biodegradability index co-degradation impact factor

Received: 13 August 2018

PACS:

X703.5

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	JIAO Xiu-yao
	HUANG Kang-yi
	WANG Xiao-ming
	WEI Xiao-xiao
	GU Juan
	LI Lei
	PENG Xu-ya

Cite this article:

JIAO Xiu-yao,HUANG Kang-yi,WANG Xiao-ming等. Impact of combined anaerobic degradation of multi-component organic domestic waste on methane production performances[J]. CHINA ENVIRONMENTAL SCIENCECE, 2019, 39(3): 1078-1086.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2019/V39/I3/1078

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