Polycyclic Aromatic Hydrocarbons and Toxic Heavy Metals in Municipal Solid Waste and Corresponding Hydrochars

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	Polycyclic Aromatic Hydrocarbons and Toxic Heavy Metals in Municipal Solid Waste and Corresponding Hydrochars
	Peng, Nana 1,2; Li, Yi 2,3; Liu, Tinging 1,2; Lang, Qianqian 1,2; Gai, Chao 1,2; Liu, Zhengang 1,2
刊名	ENERGY & FUELS
	2017-02-01
卷号	31 期号:2 页码:1665-1671
ISSN号	0887-0624
英文摘要	Hydrothermal carbonization (HTC) is an effective pretreatment technology for converting municipal solid waste (MSW) into homogenized, energy-dense, and carbon-rich hydrochars with low energy consumption. In this study, heavy metals and free polycyclic aromatic hydrocarbons (PAHs) in MSW and corresponding hydrochars were investigated. The results showed that the hydrochar yield decreased with an increasing temperature from 160 to 260 degrees C. Heavy metal contents, including Cr, Cd, Hg, and Zn, in the hydrochars were lower than those in MSW, while Pb, As, Ni, and Cu showed an accumulation in the hydrochars at most temperatures. In addition, the Toxicity Characteristic Leaching Procedure test showed that the contents of heavy metals in leachates were all lower than the United States Environmental Protection Agency (U.S. EPA) limits. With regard to PAHs, total free PAH contents in the hydrochars were higher than those of MSW, except for the hydrochar obtained at 160 degrees C. The total PAHs in the hydrochar increased with the increase of the temperature from 160 to 240 degrees C and then significantly decreased with further increasing the temperature. The three-ring PAHs were dominant in the hydrochars, while for MSW, PAHs were mainly up to four-ring PAHs. The toxic equivalent quantity values of the hydrochars were higher than those Of MSW, except for the hydrochars obtained at 160 and 180 degrees C. The present study indicated that the significant reduction of heavy metals and PAHs in MSW could be achieved by HTC of MSW.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Energy & Fuels ; Engineering, Chemical
研究领域[WOS]	Energy & Fuels ; Engineering
关键词[WOS]	HYDROTHERMAL CARBONIZATION ; COMBUSTION RESIDUES ; SEWAGE-SLUDGE ; HEATING VALUE ; BOTTOM ASH ; PYROLYSIS ; PAHS ; BIOCHAR ; BIOMASS ; FUEL
收录类别	SCI
语种	英语
WOS记录号	WOS:000394560900065
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/22099]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Peng, Nana,Li, Yi,Liu, Tinging,et al. Polycyclic Aromatic Hydrocarbons and Toxic Heavy Metals in Municipal Solid Waste and Corresponding Hydrochars[J]. ENERGY & FUELS,2017,31(2):1665-1671.
APA	Peng, Nana,Li, Yi,Liu, Tinging,Lang, Qianqian,Gai, Chao,&Liu, Zhengang.(2017).Polycyclic Aromatic Hydrocarbons and Toxic Heavy Metals in Municipal Solid Waste and Corresponding Hydrochars.ENERGY & FUELS,31(2),1665-1671.
MLA	Peng, Nana,et al."Polycyclic Aromatic Hydrocarbons and Toxic Heavy Metals in Municipal Solid Waste and Corresponding Hydrochars".ENERGY & FUELS 31.2(2017):1665-1671.