Reaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experience

doi:10.1007/s11783-019-1110-y

	Reaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experience
	Lei, Mei 1,2; Dong, Ziping 1,2; Jiang, Ying 3; Longhurst, Philip 3; Wan, Xiaoming 1,2; Zhou, Guangdong 1
刊名	FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
	2019-04-01
卷号	13 期号:2 页码:9
关键词	Arsenic contamination Phytoremediation Emission control Calcium-based sorbent Biomass disposal Pilot-scale combustion
ISSN号	2095-2201
DOI	10.1007/s11783-019-1110-y
通讯作者	Lei, Mei(leim@igsnrr.ac.cn)
英文摘要	Large quantities of contaminated biomass due to phytoremediation were disposed through combustion in low-income rural regions of China. This process provided a solution to reduce waste volume and disposal cost. Pilot-scale combustion trials were conducted for in site disposal at phytoremediation sites. The reaction mechanism of arsenic capture during pilot-scale combustion should be determined to control the arsenic emission in flue gas. This study investigated three Pteris vittata L. biomass with a disposal capacity of 600 kg/d and different arsenic concentrations from three sites in China. The arsenic concentration in flue gas was greater than that of the national standard in the trial with no emission control, and the arsenic concentration in biomass was 486 mg/kg. CaO addition notably reduced arsenic emission in flue gas, and absorption was efficient when CaO was mixed with biomass at 10% of the total weight. For the trial with 10% CaO addition, arsenic recovery from ash reached 76%, which is an approximate to 8-fold increase compared with the control. Synchrotron radiation analysis confirmed that calcium arsenate is the dominant reaction product.
资助项目	Special Research in Public Service Industry, China Ministry of Land and Resources[201511082-03] ; Science and Technology Major Project of Guangxi[AA17204047-2] ; UK Engineering Physical Sciences Research Council (EPSRC)[EP/P022863/1]
WOS关键词	HYPERACCUMULATOR PTERIS-VITTATA ; TRACE-ELEMENTS ; HEAVY-METALS ; GASIFICATION ; COAL ; FATE ; PHYTOREMEDIATION ; SPECIATION ; EMISSIONS ; KINETICS
WOS研究方向	Engineering ; Environmental Sciences & Ecology
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000463098200001
资助机构	Special Research in Public Service Industry, China Ministry of Land and Resources ; Science and Technology Major Project of Guangxi ; UK Engineering Physical Sciences Research Council (EPSRC)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/48609]
专题	中国科学院地理科学与资源研究所
通讯作者	Lei, Mei
作者单位	1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Ctr Environm Remediat, Beijing 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Cranfield Univ, Sch Water Energy & Environm, Cranfield MK43 0AL, Beds, England
推荐引用方式 GB/T 7714	Lei, Mei,Dong, Ziping,Jiang, Ying,et al. Reaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experience[J]. FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,2019,13(2):9.
APA	Lei, Mei,Dong, Ziping,Jiang, Ying,Longhurst, Philip,Wan, Xiaoming,&Zhou, Guangdong.(2019).Reaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experience.FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING,13(2),9.
MLA	Lei, Mei,et al."Reaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experience".FRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING 13.2(2019):9.