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Reaction mechanism of arsenic capture by a calcium-based sorbent during the combustion of arsenic-contaminated biomass: A pilot-scale experience
Lei, Mei1,2; Dong, Ziping1,2; Jiang, Ying3; Longhurst, Philip3; Wan, Xiaoming1,2; Zhou, Guangdong1
2019-04-01
Source PublicationFRONTIERS OF ENVIRONMENTAL SCIENCE & ENGINEERING
ISSN2095-2201
Volume13Issue:2Pages:9
Corresponding AuthorLei, Mei(leim@igsnrr.ac.cn)
AbstractLarge 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.
KeywordArsenic contamination Phytoremediation Emission control Calcium-based sorbent Biomass disposal Pilot-scale combustion
DOI10.1007/s11783-019-1110-y
WOS KeywordHYPERACCUMULATOR PTERIS-VITTATA ; TRACE-ELEMENTS ; HEAVY-METALS ; GASIFICATION ; COAL ; FATE ; PHYTOREMEDIATION ; SPECIATION ; EMISSIONS ; KINETICS
Indexed BySCI
Language英语
Funding ProjectSpecial 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]
Funding OrganizationSpecial 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)
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
WOS IDWOS:000463098200001
PublisherHIGHER EDUCATION PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/48610
Collection中国科学院地理科学与资源研究所
Corresponding AuthorLei, Mei
Affiliation1.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
Recommended Citation
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.
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