Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar

Hui Li; Wei Wu; Xue Min; Wenyong Zhan; Ting Fang; Xinju Dong; Yanhong Shi

doi:10.1080/26395940.2021.1885311

Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar

Hui Li
, Wei Wu
, Xue Min
, Wenyong Zhan
, Ting Fang
, Xinju Dong
, Yanhong Shi

Research output: Contribution to journal › Article › peer-review

22 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	1-10
Number of pages	10
Journal	Environmental Pollutants and Bioavailability
Volume	33
Issue number	1
DOIs	https://doi.org/10.1080/26395940.2021.1885311
State	Published - 2021
Externally published	Yes

Funding

This work was financially supported by the Nature Science Research Project of Anhui province (NO.2008085QC139), The Natural Science Foundation of the Education Department of Anhui Province (NO.KJ2019A0207), Anhui Science and Technology Major Project (NO.18030701186), Natural Science Foundation of Anhui Province(NO.2008085QC139), The Open Fund of Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention (NO.FECPP202003), The Project Startup Foundation for Advanced Talents AHAU (NO.YJ2018-56), Special Project in Old Revolutionary Base Area and Impoverished County of Anhui Province (No.201904f06020053).

Keywords

Compost
biochar
chemical speciation
heavy metals
risk assessment

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10.1080/26395940.2021.1885311

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title = "Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar",

abstract = "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.",

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T1 - Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar

AU - Li, Hui

AU - Wu, Wei

AU - Min, Xue

AU - Zhan, Wenyong

AU - Fang, Ting

AU - Dong, Xinju

AU - Shi, Yanhong

PY - 2021

Y1 - 2021

N2 - 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.

AB - 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.

KW - Compost

KW - biochar

KW - chemical speciation

KW - heavy metals

KW - risk assessment

UR - https://www.scopus.com/pages/publications/85101643911

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M3 - Article

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SN - 2639-5932

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JF - Environmental Pollutants and Bioavailability

IS - 1

ER -

Immobilization and assessment of heavy metals in chicken manure compost amended with rice straw-derived biochar

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