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Assessing simultaneous immobilization of lead and improvement of phosphorus availability through application of phosphorus-rich biochar in a contaminated soil: A pot experiment.
Chemosphere. 2022 Jun; 296:133891.C

Abstract

Soil lead (Pb) contamination is often caused by anthropogenic activities. In this study, a pot experiment was conducted to assess the effect of biochars derived from pig-carcass (PCBC) and branches of oriental-plane tree (OPBC) on the bioavailability, redistribution, and phytoavailability of Pb and P, as well as the growth of Ipomoea aquatica Forsk in a Pb-contaminated soil. Application of PCBC increased the total and available P concentrations in the soil as compared to the control, and enhanced the concentrations of labile P and sparingly labile P via direct exogenous P input and improvement of soil pH. Both biochars facilitated P accumulation in plant shoots and roots. Sequential extraction of soil Pb confirmed that biochar application facilitated the transformation of mobile Pb into stable fractions, with greater effects from PCBC than OPBC. Hence, biochar application significantly decreased the soil DTPA-extractable Pb by 90.2% (PCBC) and 64.0% (OPBC) compared to the control, consequently reducing Pb uptake by plants. The Pb immobilization by biochar was driven by the biochar-induced increase of soil pH, Pb-phosphate/carbonate precipitation, ion exchange between Pb2+ and biochar-derived cations (e.g., Ca2+ and K+), and surface complexation with functional groups (e.g., carboxyl, hydroxyl, CO). Application of PCBC simultaneously increased the biomass of plant roots and shoots, by 1.8- and 0.6- folds, respectively. Overall, PCBC showed a potential to function as an effective amendment in the immobilization of Pb and alternative P fertilizer to improve degraded soils.

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Authors+Show Affiliations

Chen H
Agronomy College, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China; Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China.
Feng Y
Shengyuan Environmental Monitoring Co. Ltd., Shaoxing, Zhejiang, 311800, China.
Yang X
Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China.
Yang B
Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China.
Sarkar B
Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United Kingdom.
Bolan N
School of Agriculture and Environment, The University of Western Australia, Perth, WA, 6001, Australia; The UWA Institute of Agriculture, The University of Western Australia, Perth, WA, 6001, Australia.
Meng J
Agronomy College, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China.
Wu F
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
Wong JWC
Institute of Bioresource and Agriculture, Sino-Forest Applied Research Centre for Pearl River Delta Environment, Department of Biology, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR, China.
Chen W
Agronomy College, Shenyang Agricultural University, Shenyang, Liaoning, 110866, China.
Wang H
Biochar Engineering Technology Research Center of Guangdong Province, School of Environmental and Chemical Engineering, Foshan University, Foshan, Guangdong, 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A&F University, Hangzhou, Zhejiang, 311300, China. Electronic address: hailong.wang@fosu.edu.cn.

MeSH

AnimalsBiological AvailabilityCadmiumCharcoalLeadPhosphorusSoilSoil PollutantsSwine

Pub Type(s)

Journal Article

Language

eng

PubMed ID

35134406

Citation

Chen, Hanbo, et al. "Assessing Simultaneous Immobilization of Lead and Improvement of Phosphorus Availability Through Application of Phosphorus-rich Biochar in a Contaminated Soil: a Pot Experiment." Chemosphere, vol. 296, 2022, p. 133891.
Chen H, Feng Y, Yang X, et al. Assessing simultaneous immobilization of lead and improvement of phosphorus availability through application of phosphorus-rich biochar in a contaminated soil: A pot experiment. Chemosphere. 2022;296:133891.
Chen, H., Feng, Y., Yang, X., Yang, B., Sarkar, B., Bolan, N., Meng, J., Wu, F., Wong, J. W. C., Chen, W., & Wang, H. (2022). Assessing simultaneous immobilization of lead and improvement of phosphorus availability through application of phosphorus-rich biochar in a contaminated soil: A pot experiment. Chemosphere, 296, 133891. https://doi.org/10.1016/j.chemosphere.2022.133891
Chen H, et al. Assessing Simultaneous Immobilization of Lead and Improvement of Phosphorus Availability Through Application of Phosphorus-rich Biochar in a Contaminated Soil: a Pot Experiment. Chemosphere. 2022;296:133891. PubMed PMID: 35134406.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Assessing simultaneous immobilization of lead and improvement of phosphorus availability through application of phosphorus-rich biochar in a contaminated soil: A pot experiment. AU - Chen,Hanbo, AU - Feng,Ying, AU - Yang,Xing, AU - Yang,Bingshuang, AU - Sarkar,Binoy, AU - Bolan,Nanthi, AU - Meng,Jun, AU - Wu,Fengchang, AU - Wong,Jonathan W C, AU - Chen,Wenfu, AU - Wang,Hailong, Y1 - 2022/02/05/ PY - 2021/10/01/received PY - 2021/12/19/revised PY - 2022/02/03/accepted PY - 2022/2/9/pubmed PY - 2022/4/14/medline PY - 2022/2/8/entrez KW - Alternative fertilizer KW - Bioavailability KW - Heavy metal KW - Sequential extraction KW - Soil remediation SP - 133891 EP - 133891 JF - Chemosphere JO - Chemosphere VL - 296 N2 - Soil lead (Pb) contamination is often caused by anthropogenic activities. In this study, a pot experiment was conducted to assess the effect of biochars derived from pig-carcass (PCBC) and branches of oriental-plane tree (OPBC) on the bioavailability, redistribution, and phytoavailability of Pb and P, as well as the growth of Ipomoea aquatica Forsk in a Pb-contaminated soil. Application of PCBC increased the total and available P concentrations in the soil as compared to the control, and enhanced the concentrations of labile P and sparingly labile P via direct exogenous P input and improvement of soil pH. Both biochars facilitated P accumulation in plant shoots and roots. Sequential extraction of soil Pb confirmed that biochar application facilitated the transformation of mobile Pb into stable fractions, with greater effects from PCBC than OPBC. Hence, biochar application significantly decreased the soil DTPA-extractable Pb by 90.2% (PCBC) and 64.0% (OPBC) compared to the control, consequently reducing Pb uptake by plants. The Pb immobilization by biochar was driven by the biochar-induced increase of soil pH, Pb-phosphate/carbonate precipitation, ion exchange between Pb2+ and biochar-derived cations (e.g., Ca2+ and K+), and surface complexation with functional groups (e.g., carboxyl, hydroxyl, CO). Application of PCBC simultaneously increased the biomass of plant roots and shoots, by 1.8- and 0.6- folds, respectively. Overall, PCBC showed a potential to function as an effective amendment in the immobilization of Pb and alternative P fertilizer to improve degraded soils. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/35134406/Assessing_simultaneous_immobilization_of_lead_and_improvement_of_phosphorus_availability_through_application_of_phosphorus_rich_biochar_in_a_contaminated_soil:_A_pot_experiment_ DB - PRIME DP - Unbound Medicine ER -