Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4753310 | Journal of Bioscience and Bioengineering | 2017 | 5 Pages |
Abstract
Biological treatment played an important role in the treatment of landfill leachate. In the current study, acid mine drainage (AMD) was used as a source of sulfate to strengthen the anaerobic treatment of landfill leachate. Effects of chemical oxygen demand (COD) and SO42â mass concentration ratio on the decomposition of organic matter, methane production and sulfate reduction were investigated and the microbial community was analyzed using the high throughout methods. Results showed that high removal efficiency of COD, methane production and heavy metal removal was achieved when the initial COD/SO42â ratio (based on mass) was set at 3.0. The relative abundance of anaerobic hydrogen-producing bacteria (Candidatus Cloacamonas) in the experimental group with the addition of AMD was significantly increased compared to the control. Abundance of hydrogenotrophic methanogens of Methanosarcina and Methanomassiliicoccus was increased. Results confirmed that AMD could be used as sulfate resource to strengthen the biological treatment of landfill leachate.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Bioengineering
Authors
Yu-Long Li, Jin Wang, Zheng-Bo Yue, Wei Tao, Hai-Bin Yang, Yue-Fei Zhou, Tian-Hu Chen,