Fenton/CaO调理污泥与生物质成型燃料燃烧污染物排放

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摘要针对Fenton/CaO调理后的市政污泥与稻壳混合成型燃料燃烧后烟气中SO₂和NO_x排放进行研究，分析了掺混比、温度和Fenton/CaO剂量对于SO₂和NO_x排放的影响规律.结果表明，污泥混合燃料中稻壳添加量增多，燃烧排放的SO₂和NO_x量逐渐下降，燃料硫转化率先降后升，燃料氮转化率上升；随着炉内温度的升高，污泥混合成型燃料燃烧排放的SO₂和NO_x量也将有所增加，燃料氮硫转化率也保持上升的趋势.经过Fenton/CaO调理后的混合成型燃料燃烧SO₂产生量与未经调理污泥燃烧SO₂排放量相比，低了近3.5倍，而NO_x生成量相对下降了1.3倍左右.经分析，调理污泥SS2与50%的稻壳在800℃温度下混合燃烧污染物排放性能最佳.

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	许桂英
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	郭晓龙
	阳开东
	方百增

关键词 ：污泥, 生物质, Fenton/CaO, 排放特性, SO₂, NO_x

Abstract：The SO₂ and NO_x emission characteristics during combustion of municipal sludge conditioned with Fenton/CaO and rice husk (RH) blended briquette fuels were studied. The effects of the mixing ratio, temperature and Fenton/CaO dosage on SO₂ and NO_x emission characteristics were analyzed. The results showed that with the increase of RH addition in the sludge mixed fuel, the emission of SO₂ and NO_x gradually decreased, fuel-S conversion rate first decreased and then increased, and fuel-N conversion rate increased continuously. When the temperature gradually increased, the total emissions of SO₂ and NO_x in the combustion process increased correspondingly. Compared with the SO₂ emissions from the unconditioned sludge combustion, the SO₂ generated by the Fenton/CaO conditioned mixed molding fuel combustion was nearly 3.5 times lower; while the NO_x generation was reduced by 1.3 times. The results showed that the mixed combustion of SS2 and 50% RH had the best emission performance at a combustion temperature of 800℃.

Key words： sludge biomass Fenton/CaO emission characteristics SO₂ NO_x

收稿日期: 2020-09-25

PACS:	X511
	TK6

基金资助:国家自然科学基金资助项目（21406063）

通讯作者: 许桂英,副教授,xgy092500@126.com E-mail: xgy092500@126.com

作者简介: 许桂英(1978-),女,吉林省吉林市人,副教授,博士,主要从事废弃物的资源化及生物质能利用研究.发表论文30余篇.

引用本文:

许桂英, 胡团桥, 魏和涛, 欧江波, 郭晓龙, 阳开东, 方百增. Fenton/CaO调理污泥与生物质成型燃料燃烧污染物排放[J]. 中国环境科学, 2021, 41(5): 2108-2116. XU Gui-ying, HU Tuan-qiao, WEI He-tao, OU Jiang-bo, GUO Xiao-long, YANG Kai-dong, FANG Bai-zeng. Study on gas pollutants emission characteristics of Fenton/CaO conditioned municipal sludge and biomass mixed fuels combustion. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(5): 2108-2116.

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http://www.zghjkx.com.cn/CN/ 或 http://www.zghjkx.com.cn/CN/Y2021/V41/I5/2108

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