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Immobilization of Pb and Cu in polluted soil by superphosphate, multi-walled carbon nanotube, rice straw and its derived biochar.
Environ Sci Pollut Res Int. 2016 Aug; 23(15):15532-43.ES

Abstract

Lead (Pb) and copper (Cu) contamination in croplands pose severe health hazards and environmental concerns throughout soil-food chain transfer. In the present study, BCR, TCLP, CaCl2, and SBET techniques were employed to evaluate the simultaneous effectiveness of rice straw (RS) and its derived biochar (BC), multiwall carbon nanotube (MWCNT), and single superphosphate (SSP) to immobilize the Pb and Cu in co-contaminated soil. The BCR sequential extraction results suggested that with increasing BC and SSP amount, the acid-soluble fractions decreased while oxidizable and residual proportions of Pb and Cu were increased significantly. Compared to SSP, the application of BC amendment substantially modified partitioning of Cu from easily exchangeable phase to less bioavailable residual bound fraction. The immobilized Pb and Cu were mainly transformed to reducible forms. The TCLP and CaCl2-extracted Pb and Cu were reduced significantly by the addition of BC compared to RS and MWCNT, whereas the bio-accessibility of Pb significantly reduced with RS addition. SSP showed better results for Pb immobilization while marginal for Cu in co-contaminated soil. Overall, the addition of BC offered the best results and could be effective in both Pb and Cu immobilization thereby reducing their mobility and bioavailability in the co-contaminated soil.

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Authors+Show Affiliations

Rizwan MS
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China.
Imtiaz M
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China.
Huang G
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China.
Chhajro MA
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China.
Liu Y
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China.
Fu Q
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China.
Zhu J
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China.
Ashraf M
University College of Agriculture, University of Sargodha, University road, Sargodha, Punjab, 40100, Pakistan.
Zafar M
Soil & Water Chemistry Lab. Department of Soil Science, Federal University of Santa Maria, 91105-900, Rio Grande do Sul, Brazil.
Bashir S
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China.
Hu H
Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtse River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, No. 1 Shizishan Street, Hongshan District, Wuhan, Hubei, 430070, P. R. China. hqhu@mail.hzau.edu.cn.

MeSH

Biological AvailabilityCharcoalCopperDiphosphatesEnvironmental PollutionEnvironmental Restoration and RemediationLeadNanotubes, CarbonOryzaPlant StemsSoilSoil Pollutants

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

27121017

Citation

Rizwan, Muhammad Shahid, et al. "Immobilization of Pb and Cu in Polluted Soil By Superphosphate, Multi-walled Carbon Nanotube, Rice Straw and Its Derived Biochar." Environmental Science and Pollution Research International, vol. 23, no. 15, 2016, pp. 15532-43.
Rizwan MS, Imtiaz M, Huang G, et al. Immobilization of Pb and Cu in polluted soil by superphosphate, multi-walled carbon nanotube, rice straw and its derived biochar. Environ Sci Pollut Res Int. 2016;23(15):15532-43.
Rizwan, M. S., Imtiaz, M., Huang, G., Chhajro, M. A., Liu, Y., Fu, Q., Zhu, J., Ashraf, M., Zafar, M., Bashir, S., & Hu, H. (2016). Immobilization of Pb and Cu in polluted soil by superphosphate, multi-walled carbon nanotube, rice straw and its derived biochar. Environmental Science and Pollution Research International, 23(15), 15532-43. https://doi.org/10.1007/s11356-016-6695-0
Rizwan MS, et al. Immobilization of Pb and Cu in Polluted Soil By Superphosphate, Multi-walled Carbon Nanotube, Rice Straw and Its Derived Biochar. Environ Sci Pollut Res Int. 2016;23(15):15532-43. PubMed PMID: 27121017.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Immobilization of Pb and Cu in polluted soil by superphosphate, multi-walled carbon nanotube, rice straw and its derived biochar. AU - Rizwan,Muhammad Shahid, AU - Imtiaz,Muhammad, AU - Huang,Guoyong, AU - Chhajro,Muhammad Afzal, AU - Liu,Yonghong, AU - Fu,Qingling, AU - Zhu,Jun, AU - Ashraf,Muhammad, AU - Zafar,Mohsin, AU - Bashir,Saqib, AU - Hu,Hongqing, Y1 - 2016/04/28/ PY - 2015/12/07/received PY - 2016/04/12/accepted PY - 2016/4/29/entrez PY - 2016/4/29/pubmed PY - 2017/3/23/medline KW - Bio-accessibility KW - Biochar KW - Heavy metals KW - Immobilization KW - Multiwall carbon nanotube KW - Superphosphate SP - 15532 EP - 43 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 23 IS - 15 N2 - Lead (Pb) and copper (Cu) contamination in croplands pose severe health hazards and environmental concerns throughout soil-food chain transfer. In the present study, BCR, TCLP, CaCl2, and SBET techniques were employed to evaluate the simultaneous effectiveness of rice straw (RS) and its derived biochar (BC), multiwall carbon nanotube (MWCNT), and single superphosphate (SSP) to immobilize the Pb and Cu in co-contaminated soil. The BCR sequential extraction results suggested that with increasing BC and SSP amount, the acid-soluble fractions decreased while oxidizable and residual proportions of Pb and Cu were increased significantly. Compared to SSP, the application of BC amendment substantially modified partitioning of Cu from easily exchangeable phase to less bioavailable residual bound fraction. The immobilized Pb and Cu were mainly transformed to reducible forms. The TCLP and CaCl2-extracted Pb and Cu were reduced significantly by the addition of BC compared to RS and MWCNT, whereas the bio-accessibility of Pb significantly reduced with RS addition. SSP showed better results for Pb immobilization while marginal for Cu in co-contaminated soil. Overall, the addition of BC offered the best results and could be effective in both Pb and Cu immobilization thereby reducing their mobility and bioavailability in the co-contaminated soil. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/27121017/Immobilization_of_Pb_and_Cu_in_polluted_soil_by_superphosphate_multi_walled_carbon_nanotube_rice_straw_and_its_derived_biochar_ DB - PRIME DP - Unbound Medicine ER -