Arsenic transformation behaviour during thermal decomposition of P-vittata, an arsenic hyperaccumulator

doi:10.1016/j.jaap.2017.01.013

	Arsenic transformation behaviour during thermal decomposition of P-vittata, an arsenic hyperaccumulator
	Duan, Lunbo 1,2; Li, Xiaole 1; Jiang, Ying 2; Lei, Mei 3; Dong, Ziping 3; Longhurst, Philip 2
刊名	JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
	2017-03-01
卷号	124 页码:584-591
关键词	Hyperaccumulator Thermal treatment Arsenic Speciation Solubility
ISSN号	0165-2370
DOI	10.1016/j.jaap.2017.01.013
通讯作者	Duan, Lunbo(duanlunbo@seu.edu.cn)
英文摘要	Thermal 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.
资助项目	National Natural Science Foundation of China[51661125011] ; UK Engineering and Physical Sciences Research Council (EPSRC)[EP/K026216/1] ; SUPERGEN
WOS关键词	CCA TREATED WOOD ; PTERIS-VITTATA ; HEAVY-METALS ; TRACE-ELEMENTS ; FLY-ASH ; SPECIATION ; COMBUSTION ; FERN ; COAL ; PHYTOREMEDIATION
WOS研究方向	Chemistry ; Spectroscopy
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000399624500065
资助机构	National Natural Science Foundation of China ; UK Engineering and Physical Sciences Research Council (EPSRC) ; SUPERGEN
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/64542]
专题	中国科学院地理科学与资源研究所
通讯作者	Duan, Lunbo
作者单位	1.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
推荐引用方式 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.