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
文献类型：期刊论文
| 作者 | Munir, Mehr Ahmed Mujtaba1,2; Liu, Guijian1,2; Yousaf, Balal1,2; Ali, Muhammad Ubaid3,4; Cheema, Ayesha Imtiyaz1,2; Rashid, Muhammad Saqib1,2; Rehman, Abdul1,2 |
| 刊名 | ENVIRONMENTAL POLLUTION
 |
| 出版日期 | 2020-10-01 |
| 卷号 | 265期号:PT A页码:13 |
| 关键词 | Biochar Raw coal Hydrothermally treated coal Leaching Bioavailability Uptake |
| ISSN号 | 0269-7491 |
| DOI | 10.1016/j.envpol.2020.114816 |
| 通讯作者 | Liu, Guijian(lgj@ustc.edu.cn) |
| 英文摘要 | 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. |
| WOS关键词 | HEAVY-METALS ; CONTAMINATED SOIL ; FLY-ASH ; TRACE-ELEMENTS ; INORGANIC AMENDMENTS ; ORGANIC-MATTER ; PYROLYSIS TEMPERATURE ; AQUEOUS-SOLUTIONS ; RAPESEED RESIDUE ; SEWAGE-SLUDGE |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000558886200033 |
| 出版者 | ELSEVIER SCI LTD |
| 资助机构 | National Natural Science Foundation of China ; Key research and development projects of Anhui Province |
| 源URL | [http://ir.ieecas.cn/handle/361006/15168]  |
| 专题 | 地球环境研究所_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. |
入库方式： OAI收割
来源：地球环境研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。