干旱区生态环境知识资源中心(Arid): Climatic and soil-mineralogical controls on the mobility of trace metal contamination released by informal electronic waste (e-waste) processing

Arid

DOI	10.1016/j.chemosphere.2019.05.093
	Climatic and soil-mineralogical controls on the mobility of trace metal contamination released by informal electronic waste (e-waste) processing
	Friedlander, Lonia R.1,5; Weisbrod, Noam 2; Garb, Yaakov J.3,4
通讯作者	Friedlander, Lonia R.
来源期刊	CHEMOSPHERE
ISSN	0045-6535
EISSN	1879-1298
出版年	2019
卷号	232 页码:130-139
英文摘要	Informal e-waste processing is a growing global problem. Local climate and mineralogical factors strongly control the chemical lability and dispersal of trace metals from informal e-waste processing. Previous work on e-waste contamination primarily focused on well-known sites in similar climates. Our exploratory analysis of a long-term (since 2008) e-waste incineration site in East Jerusalem demonstrated the ways in which local factors combined to uniquely control trace metal contaminant mobility. Our results suggest that the combination of e-waste processing methods, climate, and mineralogy at this site generated a geopolymer-like material combining ash from e-waste incineration and mountain rendzina soil. This material strongly sorbs trace metal contaminants. We measured the concentrations of: Cu, Fe, Mn, Pb, and Zn at 29 locations around and within the burn site. Samples collected less than 10 m from the edge of the incineration area had trace metal concentrations below the United States Environmental Protection Agency (U.S. E.P.A.) screening levels for residential soil. Sequential extraction showed that similar to 50-80% of the total mobilized Pb was released from the residual solid fraction, suggesting strong sorption or incorporation into soil components. Large differences in the measured average specific surface areas (SSA) of uncontaminated (26.18 m(2)/g) and contaminated (4.48 m(2)/g) samples, despite comparable mineralogy by XRD, suggested the production of a geopolymer-like material. This was supported by close similarities between the SSA values of contaminated samples and those measured for geopolymer materials synthesized in the lab using kaolinite clay and fly ash (e.g., 4.9 m(2)/g). (C) 2019 Elsevier Ltd. All rights reserved.
英文关键词	E-waste Trace metal Mobility Geopolymer
类型	Article
语种	英语
国家	Israel
收录类别	SCI-E
WOS记录号	WOS:000473121800014
WOS关键词	HEALTH-RISK ASSESSMENT ; ARID-ZONE SOILS ; HEAVY-METALS ; EXTRACTION PROCEDURES ; BIOAVAILABILITY ; GROUNDWATER ; ADSORPTION ; BIOCHAR ; NICKEL ; COBALT
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	Ben-Gurion University of the Negev
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214881
作者单位	1.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Swiss Inst Dryland Environm & Energy Res, IL-8499000 Midreshet Ben Gurion, Sde Boqer, Israel; 2.Ben Gurion Univ Negev, Jacob Blaustein Inst Desert Res, Zuckerberg Inst Water Res, IL-8499000 Midreshet Ben Gurion, Sde Boqer, Israel; 3.Ben Gurion Univ Negev, Dept Sociol & Anthropol, IL-84105 Beer Sheva, Israel; 4.Ben Gurion Univ Negev, Dept Geog & Environm Dev, IL-84105 Beer Sheva, Israel; 5.Ben Gurion Univ Negev, Dept Geog & Environm Dev, Earth & Planetary Image Facil, IL-84105 Israel, Israel
推荐引用方式 GB/T 7714	Friedlander, Lonia R.,Weisbrod, Noam,Garb, Yaakov J.. Climatic and soil-mineralogical controls on the mobility of trace metal contamination released by informal electronic waste (e-waste) processing[J]. Ben-Gurion University of the Negev,2019,232:130-139.
APA	Friedlander, Lonia R.,Weisbrod, Noam,&Garb, Yaakov J..(2019).Climatic and soil-mineralogical controls on the mobility of trace metal contamination released by informal electronic waste (e-waste) processing.CHEMOSPHERE,232,130-139.
MLA	Friedlander, Lonia R.,et al."Climatic and soil-mineralogical controls on the mobility of trace metal contamination released by informal electronic waste (e-waste) processing".CHEMOSPHERE 232(2019):130-139.