Figshare最新文献

筛选
英文 中文
Heavy Metal Accumulation and ReleasenRisks in Sediments from Groundwater–River Water InteractionnZones in a Contaminated River under Restoration 污染河道修复中地下水-河水互作区沉积物重金属累积释放风险
Figshare Pub Date : 2020-11-23 DOI: 10.1021/acsearthspacechem.0c00261.s001
Guangci Zeng (9624132), Kai Yu (50223), Junying Li (276498), Wenxian Wu (322095), Han Qiao (4246930), Yanhua Duan (519681), Chongxuan Liu (1482433)
{"title":"Heavy Metal Accumulation and ReleasenRisks in Sediments from Groundwater–River Water InteractionnZones in a Contaminated River under Restoration","authors":"Guangci Zeng (9624132), Kai Yu (50223), Junying Li (276498), Wenxian Wu (322095), Han Qiao (4246930), Yanhua Duan (519681), Chongxuan Liu (1482433)","doi":"10.1021/acsearthspacechem.0c00261.s001","DOIUrl":"https://doi.org/10.1021/acsearthspacechem.0c00261.s001","url":null,"abstract":"Thisnstudyninvestigated the accumulation and release risks of heavy metals As,nCd, Co, Cr, Cu, Ni, Pb, and Zn in representative contaminated river-bednand river-side sediments from a groundwater–river water interactionnzone (GRIZ) currently under restoration. The results revealed differentnaccumulation and release risk behaviors of the heavy metals in thenriver-bed and river-side sediments that are a complex function ofncontamination history, local hydrogeological and chemical properties,nand metal-specific chemistry. In the river-bed sediments, the concentrationsnof all the metals first increased and then decreased with depth, reflectingnthe histories of metal-containing wastewater discharges and sedimentationnof metal-containing particles in river water. In the river-side sediments,nthe concentrations of As, Cd, Co, and Pb were higher in finer grainnmaterials, while those of Cr, Cu, Ni, and Zn were higher in coarsernmaterials, reflecting the combined effects of stronger sorption capacitynin finer materials and preferential water flow in coarser materialsnthat carried metals from contaminated river. Speciation analysis indicatednthat Cd was mainly controlled by surface complexation, Cu was mainlyncontrolled in complexation with organics, and other metals dominantlynassociated with iron-oxide and structural fractions with a highernstructural fraction in the river-side sediments. Risk analysis indicatednthat release potentials were metal-specific, following an order ofnCd > Cu > Ni > Cr > Co > Zn > As > Pb. The resultsnhave a strong implication for understanding heavy-metal distributionnand accumulation in GRIZ sediments and for the management of contaminatednsediments during and after watershed restoration.","PeriodicalId":523790,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147921987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信
小红书