Formation and toxicity of polycyclic aromatic hydrocarbons during CaO assisted hydrothermal carbonization of swine manure

doi:10.1016/j.wasman.2019.09.010

	Formation and toxicity of polycyclic aromatic hydrocarbons during CaO assisted hydrothermal carbonization of swine manure
	Lang, Qianqian 1,4; Zhang, Bo 2; Li, Yi 3; Liu, Zhengang 1,4; Jiao, Wentao 1,4
刊名	WASTE MANAGEMENT
	2019-12-01
卷号	100 页码:84-90
关键词	Hydrothermal carbonization Swine manure CaO introduction Polycyclic aromatic hydrocarbons Soil amendment
ISSN号	0956-053X
DOI	10.1016/j.wasman.2019.09.010
英文摘要	The effects of temperature and Ca0 introduction on polycyclic aromatic hydrocarbons (PAHs) contents, distribution patterns and toxicity of the products from hydrothermal carbonization (HTC) of swine manure (SM) were investigated in this study for the first time. The results indicated that increasing temperature decreased total PAHs content of the hydrochar, while the PAHs toxicity firstly decreased and then increased during HTC of SM. For the aqueous product, the total PAHs content and toxicity gradually decreased with increasing temperature. CaO introduction during HTC of SM significantly suppressed the PAHs formation and promoted the transformation from higher molecular weight PAHs into lower molecular weight PAHs in HTC products, resulting in the remarkably decreased content and toxicity of PAHs. The lowest total PAHs content (1428.57 mu g/kg) and TEQ value (21.33 mu g/kg) of the hydrochar were obtained by 15% CaO introduction at 200 degrees C and 180 degrees C, respectively, and compared to SM, they were decreased by 73.73% and 79.51%, respectively. Moreover, 3-ring PAHs were the predominant PAHs in HTC products regardless of CaO introduction. The present study demonstrated that CaO assisted HTC at temperature lower than 220 degrees C was effective to reduce the total content and toxicity of PAHs in SM, and the prepared hydrochar was a promising soil amendment in view of the elimination of PAHs toxicity. (C) 2019 Elsevier Ltd. All rights reserved.
资助项目	"100 Talents" Program of the Chinese Academy of Sciences[Y5N41I1C01] ; Science and Technology Department of Sichuan Province[2018YZ0016]
WOS关键词	SEWAGE-SLUDGE ; HYDROCHAR ; PYROLYSIS ; PAHS ; SOIL ; BIOMASS ; WATER ; IDENTIFICATION ; GASIFICATION ; TEMPERATURE
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000494887900010
资助机构	"100 Talents" Program of the Chinese Academy of Sciences ; Science and Technology Department of Sichuan Province
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/38948]
专题	中国科学院过程工程研究所
通讯作者	Liu, Zhengang; Jiao, Wentao
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Shandong Prov Environm Technol Serv Ctr, Jinan 250102, Shandong, Peoples R China 3.Chinese Acad Sci, IPE, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Beijing 100085, Peoples R China
推荐引用方式 GB/T 7714	Lang, Qianqian,Zhang, Bo,Li, Yi,et al. Formation and toxicity of polycyclic aromatic hydrocarbons during CaO assisted hydrothermal carbonization of swine manure[J]. WASTE MANAGEMENT,2019,100:84-90.
APA	Lang, Qianqian,Zhang, Bo,Li, Yi,Liu, Zhengang,&Jiao, Wentao.(2019).Formation and toxicity of polycyclic aromatic hydrocarbons during CaO assisted hydrothermal carbonization of swine manure.WASTE MANAGEMENT,100,84-90.
MLA	Lang, Qianqian,et al."Formation and toxicity of polycyclic aromatic hydrocarbons during CaO assisted hydrothermal carbonization of swine manure".WASTE MANAGEMENT 100(2019):84-90.