Bi, DX; Yuan, GD
; Wei, J; Xiao, L; Feng, LR; Meng, FD; Wang, J发表期刊INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
ISSN1661-7827
2019-12-02
卷号16期号:24页码:4999
关键词soil pollutionsoil remediationcadmiumarsenichumic substanceFTIR
研究领域Environmental Sciences; Public, Environmental & Occupational Health
DOI10.3390/ijerph16244999
产权排序[Bi, Dongxue; Wei, Jing; Xiao, Liang; Feng, Lirong; Wang, Jie] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China; [Bi, Dongxue] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Yuan, Guodong] Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Peoples R China; [Meng, Fande] Anhui Sci & Technol Univ, Coll Resource & Environm, Chuzhou 233100, Peoples R China
通讯作者Yuan, Guodong(yuanguodong@zqu.edu.cn)
作者部门海岸带环境过程实验室
英文摘要With abundant oxygen-containing functional groups, a humic substance (HS) has a high potential to remediate soils contaminated by heavy metals. Here, HS was first extracted from a leonardite and analyzed for its chemical compositions and spectroscopic characteristics. Then it was assessed for its ability as a washing agent to remove Cd and As from three types of soils (red soil, black soil, and fluvo-aquic soil) that were spiked with those contaminants (Cd: 40.5-49.1 mg/kg; As: 451-584 mg/kg). The operational washing conditions, including the pH and concentration of the HS, washing time and cycles, and liquid-soil ratio, were assessed for Cd and As removal efficiency. At pH 7, with an HS concentration (3672 mg C/L) higher than its critical micelle concentration and a liquid-soil ratio of 30, a single washing for 6-12 h removed 41.9 mg Cd/kg and 199.3 mg As/kg from red soil, 33.5 mg Cd/kg and 291.5 mg As/kg from black soil, and 30.4 mg Cd/kg and 325.5 mg As/kg from fluvo-aquic soil. The removal of Cd and As from the contaminated soils involved the complexation of Cd and As with the carboxyl and phenolic groups of HS. Outcomes from this research could be used to develop a tailor-made HS washing agent for the remediation of Cd- and As-contaminated soils with different properties.
文章类型Article
资助机构Chinese National Key Research and Development Program [2016YFD0200303]; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41501522]
收录类别SCI
语种英语
关键词[WOS]HEAVY-METALS; ORGANIC-ACIDS; CD; BINDING; EDTA; ZN; CU; MOBILIZATION; SURFACTANTS; KINETICS
研究领域[WOS]Environmental Sciences; Public, Environmental & Occupational Health
WOS记录号WOS:000507312700119
引用统计被引频次：4[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/24796
专题中科院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
中国科学院烟台海岸带研究所
作者单位1.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Shandong, Peoples R China;
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
3.Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Peoples R China;
4.Anhui Sci & Technol Univ, Coll Resource & Environm, Chuzhou 233100, Peoples R China
推荐引用方式
GB/T 7714Bi, DX,Yuan, GD,Wei, J,et al. A Soluble Humic Substance for the Simultaneous Removal of Cadmium and Arsenic from Contaminated Soils[J]. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,2019,16(24):4999.
APABi, DX.,Yuan, GD.,Wei, J.,Xiao, L.,Feng, LR.,...&Wang, J.(2019).A Soluble Humic Substance for the Simultaneous Removal of Cadmium and Arsenic from Contaminated Soils.INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH,16(24),4999.
MLABi, DX,et al."A Soluble Humic Substance for the Simultaneous Removal of Cadmium and Arsenic from Contaminated Soils".INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 16.24(2019):4999.
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