A Soluble Humic Substance for the Simultaneous Removal of Cadmium and Arsenic from Contaminated Soils

doi:10.3390/ijerph16244999

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	A Soluble Humic Substance for the Simultaneous Removal of Cadmium and Arsenic from Contaminated Soils
	Bi, DX ; Yuan, GD ; Wei, J ; Xiao, L ; Feng, LR ; Meng, FD ; Wang, J
刊名	INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
	2019-12-02
卷号	16 期号:24 页码:4999
关键词	soil pollution soil remediation cadmium arsenic humic substance FTIR
ISSN号	1661-7827
DOI	10.3390/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
文献子类	Article
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.
WOS关键词	HEAVY-METALS ; ORGANIC-ACIDS ; CD ; BINDING ; EDTA ; ZN ; CU ; MOBILIZATION ; SURFACTANTS ; KINETICS
WOS研究方向	Environmental Sciences ; Public, Environmental & Occupational Health
语种	英语
WOS记录号	WOS:000507312700119
资助机构	Chinese National Key Research and Development Program [2016YFD0200303] ; National Natural Science Foundation of ChinaNational Natural Science Foundation of China [41501522]
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24796]
专题	烟台海岸带研究所_近岸生态与环境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.Zhaoqing Univ, Sch Environm & Chem Engn, Zhaoqing 526061, Peoples R China; 3.Anhui Sci & Technol Univ, Coll Resource & Environm, Chuzhou 233100, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China;
推荐引用方式 GB/T 7714	Bi, 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.
APA	Bi, 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.
MLA	Bi, 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.