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Arsenic transformation behaviour during thermal decomposition of P-vittata, an arsenic hyperaccumulator
Duan, Lunbo1,2; Li, Xiaole1; Jiang, Ying2; Lei, Mei3; Dong, Ziping3; Longhurst, Philip2
2017-03-01
Source PublicationJOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
ISSN0165-2370
Volume124Pages:584-591
Corresponding AuthorDuan, Lunbo(duanlunbo@seu.edu.cn)
AbstractThermal treatment of P. vittata, an arsenic hyperaccumulator harvested from contaminated land is a promising method of achieving volume reduction, energy production and arsenic (As) recovery simultaneously. In this paper, the arsenic transformation characteristics of field-harvested P. vittata were investigated during its pyrolysis and gasification process. The produced solid residue and flue gas were analysed by a high performance liquid chromatography coupled with inductively coupled plasma mass spectrometry (HPLC-ICP-MS) to determine both the arsenic concentration and speciation. Moreover, the occurrence of arsenic in the solid residues was further identified as soluble and insoluble, which can feed information to the next arsenic recovery step. Results show that the fuel arsenic into gas phase increases firstly from 400 degrees C to 600 degrees C, but then drops from 600 degrees C to 800 degrees C, probably due to the self-retention of arsenic by CaO enriched in this P. vittata. Further increasing temperature to 900 degrees C will result in fast arsenic release. Gasification results in slightly higher arsenic release into the gas phase compared with pyrolysis. (C) 2017 Elsevier B.V. All rights reserved.
KeywordHyperaccumulator Thermal treatment Arsenic Speciation Solubility
DOI10.1016/j.jaap.2017.01.013
WOS KeywordCCA TREATED WOOD ; PTERIS-VITTATA ; HEAVY-METALS ; TRACE-ELEMENTS ; FLY-ASH ; SPECIATION ; COMBUSTION ; FERN ; COAL ; PHYTOREMEDIATION
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51661125011] ; UK Engineering and Physical Sciences Research Council (EPSRC)[EP/K026216/1] ; SUPERGEN
Funding OrganizationNational Natural Science Foundation of China ; UK Engineering and Physical Sciences Research Council (EPSRC) ; SUPERGEN
WOS Research AreaChemistry ; Spectroscopy
WOS SubjectChemistry, Analytical ; Spectroscopy
WOS IDWOS:000399624500065
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/64543
Collection中国科学院地理科学与资源研究所
Corresponding AuthorDuan, Lunbo
Affiliation1.Southeast Univ, Key Lab Energy Thermal Convers & Control, Minist Educ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China
2.Cranfield Univ, Sch Water Energy & Environm, Cranfield MK43 0AL, Beds, England
3.Chinese Acad Sci, Ctr Environm Remediat, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Duan, Lunbo,Li, Xiaole,Jiang, Ying,et al. Arsenic transformation behaviour during thermal decomposition of P-vittata, an arsenic hyperaccumulator[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2017,124:584-591.
APA Duan, Lunbo,Li, Xiaole,Jiang, Ying,Lei, Mei,Dong, Ziping,&Longhurst, Philip.(2017).Arsenic transformation behaviour during thermal decomposition of P-vittata, an arsenic hyperaccumulator.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,124,584-591.
MLA Duan, Lunbo,et al."Arsenic transformation behaviour during thermal decomposition of P-vittata, an arsenic hyperaccumulator".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 124(2017):584-591.
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