Effects of the joint application of phosphate rock, ferric nitrate and plant ash on the immobility of As, Pb and Cd in soils

doi:10.1016/j.jenvman.2020.110576

	Effects of the joint application of phosphate rock, ferric nitrate and plant ash on the immobility of As, Pb and Cd in soils
	Li, Qiqi 2; Zhong, Huiqiong 1; Cao, Yan 1,2,3,4
刊名	JOURNAL OF ENVIRONMENTAL MANAGEMENT
	2020-07-01
卷号	265 页码:7
关键词	Multi-metal(loid)s contaminations Immobility Phosphate rock Ferric nitrate Grass ash SAR leaching
ISSN号	0301-4797
DOI	10.1016/j.jenvman.2020.110576
通讯作者	Cao, Yan(caoyan@ms.giec.ac.cn)
英文摘要	Phosphate rock (PR) and ferric salts have been frequently used to immobilize heavy metal(loid)s in soils, but in varied efficiencies referring to different metal(loid) pollutants. This study explored the effective application of plant ash (PA) to the previous formula of phosphate rock (PR) and ferric salts (Fe(NO3)(3)) (PR + Fe3++PA), compared to only PR, on the bioavailability and immobility of multi-metal(loid)s of selected arsenic (As), lead (Pb) and cadmium (Cd) in soils. Results from NaHCO3-extraction and toxicity characteristic leaching procedure (TCLP) implied the increase of the As mobility in soils by 7.0% and 2.6% using PR only, but the significant reduction of the As mobility by 24.2% and 82.4% jointly using PR + Fe3++PA. Meanwhile, the application of either PR alone or PR + Fe3++PA in soil significantly decreased Pb and Cd extracting in diethylene triamine pentacetate acid (DTPA) and TCLP, particularly, the immobilization effect of PR + Fe3+ +PA was better than that of PR. The leaching column test further confirmed the high durability of PR + Fe3++PA on the immobilization of As and Pb under the continuous acid exposure, but likely slightly increased the mobility of Cd (the accumulated concentration of Cd, 5.88 mu g/L) compared to that (3.16 mu g/L) in the untreated column (UN-column), which were both much lower than the level V (100 mu g/L) of the Chinese National Quality Standard for Surface Water (GB 3838-2002). Therefore, PR + Fe3++PA exhibited the significant enhancement on the immobilization of As, Pb and Cd under simulated acid rain (SAR) leaching.
资助项目	National Natural Science Foundation of China[21676001] ; National Key Research and Development program of China-Intergovernmental International Scientific and Technological Innovation Cooperation[2017YFE0105500]
WOS关键词	CONTAMINATED SOILS ; ARSENIC UPTAKE ; CADMIUM ; ADSORPTION ; MOBILITY ; METALS ; LEAD ; CU ; HYPERACCUMULATOR ; STABILIZATION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000533526800019
资助机构	National Natural Science Foundation of China ; National Key Research and Development program of China-Intergovernmental International Scientific and Technological Innovation Cooperation
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/27125]
专题	中国科学院广州能源研究所
通讯作者	Cao, Yan
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Anhui Univ, Coll Chem & Chem Engn, Hefei 230601, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Li, Qiqi,Zhong, Huiqiong,Cao, Yan. Effects of the joint application of phosphate rock, ferric nitrate and plant ash on the immobility of As, Pb and Cd in soils[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2020,265:7.
APA	Li, Qiqi,Zhong, Huiqiong,&Cao, Yan.(2020).Effects of the joint application of phosphate rock, ferric nitrate and plant ash on the immobility of As, Pb and Cd in soils.JOURNAL OF ENVIRONMENTAL MANAGEMENT,265,7.
MLA	Li, Qiqi,et al."Effects of the joint application of phosphate rock, ferric nitrate and plant ash on the immobility of As, Pb and Cd in soils".JOURNAL OF ENVIRONMENTAL MANAGEMENT 265(2020):7.