Characterization and environmental risk assessment of heavy metals in construction and demolition wastes from five sources (chemical, metallurgical and light industries, and residential and recycled aggregates)

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	Characterization and environmental risk assessment of heavy metals in construction and demolition wastes from five sources (chemical, metallurgical and light industries, and residential and recycled aggregates)
	Gao, Xiaofeng 1; Gu, Yilu 2; Xie, Tian 1; Zhen, Guangyin 3; Huang, Sheng 1; Zhao, Youcai 1
刊名	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
	2015-06-01
卷号	22 期号:12 页码:9332-9344
关键词	Construction and demolition wastes Heavy metals Risk assessment BCR sequential extraction Solid waste management China
ISSN号	0944-1344
通讯作者	Zhao, YC (reprint author), Tongji Univ, Sch Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China.
英文摘要	Total concentrations of heavy metals (Cu, Zn, Pb, Cr, Cd, and Ni) were measured among 63 samples of construction and demolition (C&D) wastes collected from chemical, metallurgical and light industries, and residential and recycled aggregates within China for risk assessment. The heavy metal contamination was primarily concentrated in the chemical and metallurgical industries, especially in the electroplating factory and zinc smelting plant. High concentrations of Cd were found in light industry samples, while the residential and recycled aggregate samples were severely polluted by Zn. Six most polluted samples were selected for deep research. Mineralogical analysis by X-ray fluorescence (XRF) spectrometry and X-ray diffraction (XRD), combined with element speciation through European Community Bureau of Reference (BCR) sequential extraction, revealed that a relatively slight corrosion happened in the four samples from electroplating plants but high transfer ability for large quantities of Zn and Cu. Lead arsenate existed in the acid extractable fraction in CI7-8 and potassium chromium oxide existed in the mobility fraction. High concentration of Cr could be in amorphous forms existing in CI9. The high content of sodium in the two samples from zinc smelter plants suggested severe deposition and erosion on the workshop floor. Large quantities of Cu existed as copper halide and most of the Zn appeared to be zinc, zinc oxide, barium zinc oxide, and zincite. From the results of the risk assessment code (RAC), the samples from the electroplating factory posed a very high risk of Zn, Cu, and Cr, a high risk of Ni, a middle risk of Pb, and a low risk of Cd. The samples from the zinc smelting plant presented a high risk of Zn, a middle risk of Cu, and a low risk of Pb, Cr, Cd, and Ni.
WOS标题词	Science & Technology ; Life Sciences & Biomedicine
类目[WOS]	Environmental Sciences
研究领域[WOS]	Environmental Sciences & Ecology
关键词[WOS]	SEQUENTIAL EXTRACTION ; FLY-ASH ; SEDIMENTS ; RECOVERY ; CHINA ; SOILS
收录类别	SCI
语种	英语
WOS记录号	WOS:000356453000049
内容类型	期刊论文
源URL	[http://ir.ihb.ac.cn/handle/342005/25783]
专题	水生生物研究所_藻类生物学及应用研究中心_期刊论文
作者单位	1.Tongji Univ, Sch Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China 2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Hunan, Peoples R China 3.Natl Inst Environm Studies, Tsukuba, Ibaraki 3050053, Japan
推荐引用方式 GB/T 7714	Gao, Xiaofeng,Gu, Yilu,Xie, Tian,et al. Characterization and environmental risk assessment of heavy metals in construction and demolition wastes from five sources (chemical, metallurgical and light industries, and residential and recycled aggregates)[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2015,22(12):9332-9344.
APA	Gao, Xiaofeng,Gu, Yilu,Xie, Tian,Zhen, Guangyin,Huang, Sheng,&Zhao, Youcai.(2015).Characterization and environmental risk assessment of heavy metals in construction and demolition wastes from five sources (chemical, metallurgical and light industries, and residential and recycled aggregates).ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,22(12),9332-9344.
MLA	Gao, Xiaofeng,et al."Characterization and environmental risk assessment of heavy metals in construction and demolition wastes from five sources (chemical, metallurgical and light industries, and residential and recycled aggregates)".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 22.12(2015):9332-9344.