Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4996868 | Bioresource Technology | 2017 | 38 Pages |
Abstract
Studies were performed to evaluate influence of biochar addition on physico-chemical process, heavy metals transformation and bacterial community diversity during composting of sediment with agricultural wastes. Simultaneously, the relationships between those parameters including heavy metals and bacterial community compositions were evaluated by redundancy analysis (RDA). The results show that the extraction efficiency of DTPA extractable heavy metals decreased in both piles, and reduced more in pile with biochar addition about 0.1-2.96%. Biochar addition dramatically influenced the bacterial community structure during the composting process. Moreover, the bacterial community composition was significantly correlated with C/N ratio, water soluble carbon (WSC), and organic matter (OM) (PÂ <Â 0.05) in pile with biochar addition; while significantly correlated with temperature, WSC, and C/N ratio in pile which was free of biochar. This study would provide some valuable information for improving the composting for disposal of river sediment with heavy metals contamination.
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Authors
Yaoning Chen, Yao Liu, Yuanping Li, Yanxin Wu, Yanrong Chen, Guangming Zeng, Jiachao Zhang, Hui Li,