Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar
In this study, a 30-days laboratory experiment was implemented to investigate the impact of additive biochar on the stabilization of heavy metals in chicken manure compost. Results showed that after the addition of rice straw-derived biochar, heavy metals were more stabilized except Cu, of which the...
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2021-01-01
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Online Access: | http://dx.doi.org/10.1080/26395940.2021.1885311 |
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doaj-632e31451a484deb9070d76e4700b6e62021-03-02T16:11:16ZengTaylor & Francis GroupEnvironmental Pollutants & Bioavailability2639-59402021-01-0133111010.1080/26395940.2021.18853111885311Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biocharHui Li0Wei Wu1Xue Min2Wenyong Zhan3Ting Fang4Xinju Dong5Yanhong Shi6Anhui Agricultural UniversityAnhui Academy of Agricultural SciencesAnhui Agricultural UniversityAnhui Dechang Miao Mu Co. LTDFisheries Research Institute, Anhui Academy of Agricultural SciencesUniversity of LouisvilleAnhui Agricultural UniversityIn this study, a 30-days laboratory experiment was implemented to investigate the impact of additive biochar on the stabilization of heavy metals in chicken manure compost. Results showed that after the addition of rice straw-derived biochar, heavy metals were more stabilized except Cu, of which the residual fractions distinctly decreased due to the interaction with organic functional groups from biochar. Given the bioavailability of heavy metals, the biochar addition at a 10% proportion decreased the concentration of CaCl2-extractable Cr, Zn, Ni, and Cd. Besides, CaCl2-extractable As did not differ significantly between treatments with and without biochar addition. Furthermore, the CaCl2-extractable Cu was higher than the control, in agreement with the observed changes in speciation. Environment pollution assessment by integrating potential ecological risk assessment explicated the chicken manure compost reached avery high-risk pollution level, and decreased with biochar addition. Therein, Cd was the dominant pollutant with very high potential risk.http://dx.doi.org/10.1080/26395940.2021.1885311compostbiocharchemical speciationrisk assessmentheavy metals |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hui Li Wei Wu Xue Min Wenyong Zhan Ting Fang Xinju Dong Yanhong Shi |
spellingShingle |
Hui Li Wei Wu Xue Min Wenyong Zhan Ting Fang Xinju Dong Yanhong Shi Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar Environmental Pollutants & Bioavailability compost biochar chemical speciation risk assessment heavy metals |
author_facet |
Hui Li Wei Wu Xue Min Wenyong Zhan Ting Fang Xinju Dong Yanhong Shi |
author_sort |
Hui Li |
title |
Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar |
title_short |
Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar |
title_full |
Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar |
title_fullStr |
Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar |
title_full_unstemmed |
Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar |
title_sort |
immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar |
publisher |
Taylor & Francis Group |
series |
Environmental Pollutants & Bioavailability |
issn |
2639-5940 |
publishDate |
2021-01-01 |
description |
In this study, a 30-days laboratory experiment was implemented to investigate the impact of additive biochar on the stabilization of heavy metals in chicken manure compost. Results showed that after the addition of rice straw-derived biochar, heavy metals were more stabilized except Cu, of which the residual fractions distinctly decreased due to the interaction with organic functional groups from biochar. Given the bioavailability of heavy metals, the biochar addition at a 10% proportion decreased the concentration of CaCl2-extractable Cr, Zn, Ni, and Cd. Besides, CaCl2-extractable As did not differ significantly between treatments with and without biochar addition. Furthermore, the CaCl2-extractable Cu was higher than the control, in agreement with the observed changes in speciation. Environment pollution assessment by integrating potential ecological risk assessment explicated the chicken manure compost reached avery high-risk pollution level, and decreased with biochar addition. Therein, Cd was the dominant pollutant with very high potential risk. |
topic |
compost biochar chemical speciation risk assessment heavy metals |
url |
http://dx.doi.org/10.1080/26395940.2021.1885311 |
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