花生壳掺烧对市政污泥燃烧性能的影响

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Abstract In term of the effects of peanut shell blending on the combustion performance pollution emission of sewage sludge, the effects of heating rate and peanut shell blending ratio on the combustion process were analyzed. The results showed that when the peanut shell blending ratio was 40% and the heating rate increased from 5℃/min to 30℃/min, the composite combustion performance index and volatile matter release characteristic index increased 6.9 times and 4.5 times respectively. When the heating rate was 30℃/min, and the blending ratio of peanut shell increased from 0% to 40%, the comprehensive combustion performance index and volatile matter release characteristic index of samples increase by 1.7 times and 5.6 times, respectively, indicating that peanut shell blending can effectively improve the combustion performance of sewage sludge. The results of non-isothermal kinetic fitting showed that the activation energy decreased from 89.16 kJ/mol to 69.73 kJ/mol with the increase of peanut shell blending ratio, which was beneficial for the combustion reaction. The real-time monitoring of pollution gas showed that the peak of NO emission decreased 60% when the peanut shell blending ratio increased from 10% to 40%, indicating that the peanut shell could significantly reduce the emission of pollution gas during combustion process.

Key words： sewage sludge biomass combustion characteristics dynamics oxynitride

Received: 24 January 2022

PACS:

X705

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	Articles by authors
	SHI Yuan-yuan
	YAN Feng
	CHEN Jing-jing
	DONG Chun-ling
	GUO Rui-cheng
	ZHANG Zuo-tai

Cite this article:

SHI Yuan-yuan,YAN Feng,CHEN Jing-jing等. Effects of biomass blending on combustion performance of sewage sludge[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(8): 3796-3803.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I8/3796

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