Bamboo-biochar and hydrothermally treated-coal mediated geochemical speciation, transformation and uptake of Cd, Cr, and Pb in a polymetal(iod)s-contaminated mine soil

doi:10.1016/j.envpol.2020.114816

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	Bamboo-biochar and hydrothermally treated-coal mediated geochemical speciation, transformation and uptake of Cd, Cr, and Pb in a polymetal(iod)s-contaminated mine soil
	Munir, Mehr Ahmed Mujtaba 1,2; Liu, Guijian 1,2; Yousaf, Balal 1,2; Ali, Muhammad Ubaid 3,4; Cheema, Ayesha Imtiyaz 1,2; Rashid, Muhammad Saqib 1,2; Rehman, Abdul 1,2
通讯作者	Liu, Guijian(lgj@ustc.edu.cn)
	2020-10-01
发表期刊	ENVIRONMENTAL POLLUTION
ISSN	0269-7491
卷号	265 期号:PT A 页码:13
摘要	In this study, polymetal(iod)s-contaminated mining soil from the Huainan coalfield, Anhui, China, was used to investigate the synergistic effects of biochar (BC), raw coal (RC), and hydrothermally treated coal (HTC) on the immobilization, speciation, transformation, and accumulation of Cd, Cr, and Pb in a soil -plant system via geochemical speciation and advanced spectroscopic approaches. The results revealed that the BC-2% and BC-HTC amendments were more effective than the individual RC, and/or HTC amendments to reduce ethylene-diamine-tetraacetic acid (EDTA)-extractable Cd, Cr, and Pb concentrations by elevating soil pH and soil organic carbon content. Soil pH increased by 1.5 and 2.5 units after BC-2% and BC-HTC amendments, respectively, which reduced EDTA-extractable Cd, Cr, and Pb to more stabilized forms. Metal speciation and X-ray photoelectron spectroscopy analyses suggested that the BC-HTC amendment stimulated the transformation of reactive Cd, Cr, and Pb (exchangeable and carbonate-bound) states to less reachable (oxide and residual) states to decrease the toxicity of these heavy metals. Fourier transform infrared spectroscopy and X-ray diffraction analyses suggested that reduction and adsorption by soil colloids may be involved in the mechanism of Cd(II), Cr(VI), and Pb(II) immobilization via hydroxyl, carbonyl, carboxyl, and amide groups in the BC and HTC. Additionally, the BC-2% and BC-HTC amendments reduced Cd and Pb accumulation in maize shoots, which could mainly be ascribed to the reduction of EDTA-extractable heavy metals in the soil and more functional groups in the roots, thus inhibiting metal ion translocation by providing the electrons necessary for immobilization, compared to those in roots grown in the unamended soil. Therefore, the combined application of BC and HTC was more effective than the individual application of these amendments to minimize the leaching, availability, and exchangeable states of Cd, Cr, and Pb in polymetal(iod)s-contaminated mining soil and accumulation in maize. (C) 2020 Elsevier Ltd. All rights reserved.
关键词	Biochar Raw coal Hydrothermally treated coal Leaching Bioavailability Uptake
DOI	10.1016/j.envpol.2020.114816
关键词[WOS]	HEAVY-METALS ; CONTAMINATED SOIL ; FLY-ASH ; TRACE-ELEMENTS ; INORGANIC AMENDMENTS ; ORGANIC-MATTER ; PYROLYSIS TEMPERATURE ; AQUEOUS-SOLUTIONS ; RAPESEED RESIDUE ; SEWAGE-SLUDGE
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[41173032] ; Key research and development projects of Anhui Province[1804b06020358]
WOS研究方向	Environmental Sciences & Ecology
项目资助者	National Natural Science Foundation of China ; Key research and development projects of Anhui Province
WOS类目	Environmental Sciences
WOS记录号	WOS:000558886200033
出版者	ELSEVIER SCI LTD
引用统计	被引频次：39[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/15169
专题	黄土与第四纪地质国家重点实验室（2010~）
通讯作者	Liu, Guijian
作者单位	1.Univ Sci & Technol China, CAS Key Lab Crust Mantle Mat & Environm, Sch Earth & Space Sci, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Shaanxi, Peoples R China 3.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Prov Key Lab Soil & Groundwater Pollut, Shenzhen 518000, Peoples R China 4.Southern Univ Sci & Technol, Sch Environm Sci & Engn, State Environm Protect Key Lab Integrated Surface, Shenzhen 518000, Peoples R China
推荐引用方式 GB/T 7714	Munir, Mehr Ahmed Mujtaba,Liu, Guijian,Yousaf, Balal,et al. Bamboo-biochar and hydrothermally treated-coal mediated geochemical speciation, transformation and uptake of Cd, Cr, and Pb in a polymetal(iod)s-contaminated mine soil[J]. ENVIRONMENTAL POLLUTION,2020,265(PT A):13.
APA	Munir, Mehr Ahmed Mujtaba.,Liu, Guijian.,Yousaf, Balal.,Ali, Muhammad Ubaid.,Cheema, Ayesha Imtiyaz.,...&Rehman, Abdul.(2020).Bamboo-biochar and hydrothermally treated-coal mediated geochemical speciation, transformation and uptake of Cd, Cr, and Pb in a polymetal(iod)s-contaminated mine soil.ENVIRONMENTAL POLLUTION,265(PT A),13.
MLA	Munir, Mehr Ahmed Mujtaba,et al."Bamboo-biochar and hydrothermally treated-coal mediated geochemical speciation, transformation and uptake of Cd, Cr, and Pb in a polymetal(iod)s-contaminated mine soil".ENVIRONMENTAL POLLUTION 265.PT A(2020):13.