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| 论文编号: |
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| 论文题目: |
The passivation effect of heavy metals during biochar-amended composting: Emphasize on bacterial communities |
| 英文论文题目: |
The passivation effect of heavy metals during biochar-amended composting: Emphasize on bacterial communities |
| 第一作者: |
崔虎 |
| 英文第一作者: |
Cui, Hu |
| 联系作者: |
王莉霞 |
| 英文联系作者: |
Wang, Lixia |
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| 发表年度: |
2020 |
| 卷: |
118 |
| 期: |
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| 页码: |
360-368 |
| 摘要: |
Available information on passivation effect of biochar on heavy metals (HMs) through regulating bacterial communities remains limited. Thus, this study investigated the correlation between bacterial diversity and HM-fractions (Zn, Cu, Cd, Cr and Pb) during composting with different dose of biochar (5% and 10%, dry weight basis), in order to ascertain the passivation effect on HMs under the influence of bacterial community. The addition of 10% biochar showed better passivation effect with reduction in bioavailability factor (BF) of Zn, Cu, Cd and Pb by 4.10%, 44.12%, 18.75% and 30.06%, respectively. In addition, it brought forward the variation in primary bacterial phylum to the thermophilic phase. The results of redundancy analysis (RDA) and structural equation models (SEMs) indicated that C:N ratio was an important factor in controlling the morphological transformation of HM by affecting the bacterial community structure. Our results maybe provide a novel insight into HM-passivation from an interaction mechanism on C:N ratio and bacterial community. |
| 英文摘要: |
Available information on passivation effect of biochar on heavy metals (HMs) through regulating bacterial communities remains limited. Thus, this study investigated the correlation between bacterial diversity and HM-fractions (Zn, Cu, Cd, Cr and Pb) during composting with different dose of biochar (5% and 10%, dry weight basis), in order to ascertain the passivation effect on HMs under the influence of bacterial community. The addition of 10% biochar showed better passivation effect with reduction in bioavailability factor (BF) of Zn, Cu, Cd and Pb by 4.10%, 44.12%, 18.75% and 30.06%, respectively. In addition, it brought forward the variation in primary bacterial phylum to the thermophilic phase. The results of redundancy analysis (RDA) and structural equation models (SEMs) indicated that C:N ratio was an important factor in controlling the morphological transformation of HM by affecting the bacterial community structure. Our results maybe provide a novel insight into HM-passivation from an interaction mechanism on C:N ratio and bacterial community. |
| 刊物名称: |
Waste management (New York, N.Y.) |
| 英文刊物名称: |
Waste management (New York, N.Y.) |
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| 参与作者: |
Ou Yang;Yan, Baixing; Li, Yingxin; Ding, Dawei |
| 英文参与作者: |
Ou Yang;Yan, Baixing; Li, Yingxin; Ding, Dawei |
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