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J Hazard Mater. 2019 Jun 11;378:120757. doi: 10.1016/j.jhazmat.2019.120757. [Epub ahead of print]

Changes of heavy metal fractions during co-composting of agricultural waste and river sediment with inoculation of Phanerochaete chrysosporium.

Author information

1
College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
2
College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China. Electronic address: cyn@hnu.edu.cn.
3
College of Municipal and Mapping Engineering, Hunan City University, Yiyang, Hunan 413000, China. Electronic address: yuanpingl@163.net.
4
Institute of Biological and Environmental Engineering, Hunan Academy of Forestry, Changsha 410004, China.
5
College of Resources and Environment, Hunan Agricultural University, Changsha 410128, China.

Abstract

The effects of Phanerochaete chrysosporium on the bioavailability of multiple heavy metals (Pb, Cd, Cu, and Zn) in river sediments were investigated by co-composting with the agricultural waste. The results showed that the Phanerochaete chrysosporium inoculation can greatly enhance the passivation on Cu, Pb and Cd during 60 days co-composting. The effects in the three metals followed the order: Cu > Cd > Pb. There were no differences for Zn whether inoculation with P. chrysosporium or not. Redundancy analysis (RDA) implied that more than 4/5 of the variation of all fractions data for all heavy metals was explained by all significant canonical axes. P. chrysosporium can change the significant parameters for each metal and enhance the explanatory power of RDA model. The inoculation can strengthen the effect of OM (organic matter) on the bioavailability of heavy metals, but weaken the contribution of pH.

KEYWORDS:

Co-composting; Heavy metals; Phanerochaete chrysosporium; Redundancy analysis; Sediment

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