The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Changes in heavy metal bioavailability and speciation from a Pb-Zn mining soil amended with biochars from co-pyrolysis of rice straw and swine manure
Abstract
Biochar has been utilized as a good amendment to immobilize heavy metals in contaminated soils. However, the effectiveness of biochar in metal immobilization depends on biochar properties and metal species. In this study, the biochars produced from co-pyrolysis of rice straw with swine manure at 400°C were investigated to evaluate their effects on bioavailability and chemical speciation of four heavy metals (Cd, Cu, Pb and Zn) in a Pb-Zn contaminated soil through incubation experiment. Results showed that co-pyrolysis process significantly change the yield, ash content, pH, and electrical conductivity (EC) of the blended biochars compared with the single straw/manure biochar. The addition of these biochars significantly increased the soil pH, EC, and dissolved organic carbon (DOC) concentrations. The addition of biochars at a rate of 3% significantly reduced the CaCl2-extractable metal concentrations in the order of Pb>Cu>Zn>Cd. The exchangeable heavy metals decreased in all the biochar-amended soils whereas the carbonate-bound metal speciation increased. The increase in soil pH and the decrease in the CaCl2 extractable metals indicated that these amendments can directly transform the highly availability metal speciation to the stable speciation in soils. In conclusion, biochar derived from co-pyrolysis of rice straw with swine manure at a mass ratio of 3:1 could most effectively immobilize the heavy metals in the soil.
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Cites
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Cited by
He, L., Zhong, H., Liu, G., Dai, Z., Brookes, P. C., & Xu, J. (2019) · Environmental Pollution · doi:10.1016/j.envpol.2019.05.151 · Cited by 668
Self-citationMultifunctional applications of biochar beyond carbon storage
Bolan, N., Hoang, S. A., Beiyuan, J., Gupta, S., Hou, D., Karakoti, A., Joseph, S., Jung, S., Kim, K.-H., Kirkham, M. B., et al. (2022) · International Materials Reviews · doi:10.1080/09506608.2021.1922047 · Cited by 638
Prediction of Soil Heavy Metal Immobilization by Biochar Using Machine Learning
Palansooriya, K. N., Li, J., Dissanayake, P. D., Suvarna, M., Li, L., Yuan, X., Sarkar, B., Tsang, D. C. W., Rinklebe, J., Wang, X., et al. (2022) · Environmental Science & Technology · doi:10.1021/acs.est.1c08302 · Cited by 518
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Self-citationZhong, X., Chen, Z., Li, Y., Ding, K., Liu, W., Liu, Y., Yuan, Y., Zhang, M., Baker, A. J. M., Yang, W., et al. (2020) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2020.123289 · Cited by 365
Metadata
- Authors
- Meng, J., Tao, M., Wang, L., Liu, X., & Xu, J.
- Venue
- Science of The Total Environment
- Publisher
- Elsevier BV
- Published
- 2018-08
- Volume
- 633
- Pages
- 300-307
- ISSN
- 0048-9697 (ISSN-L)
- OpenAlex
- W2790846077
- Cited by
- 274
- References
- 10
- FWCI
- 9.16
- Type
- journal article
- Language
- en
- Open access
- closed
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- Meng, J., Tao, M., Wang, L., Liu, X., & Xu, J. (2018). Changes in heavy metal bioavailability and speciation from a Pb-Zn mining soil amended with biochars from co-pyrolysis of rice straw and swine manure. Science of The Total Environment. https://doi.org/10.1016/j.scitotenv.2018.03.199
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