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| Effect of Substrate on Occurrence Forms of Heavy Metals in Manganese Slag Composting |
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Received:June 25, 2017
Revised:July 05, 2017
Accepted:July 05, 2017
Published Online:November 22, 2017
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| DOI：doi：10.3969/j.issn.1007-7545.2017.12.001 |
| KeyWord:heavy metal; manganese slag; compost fermentation; morphology |
| Author | Institution |
| WEI Xuxin |
中南民族大学 资源与环境学院 |
| LI Jia |
中南民族大学 资源与环境学院 |
| LV Ying |
中南民族大学 资源与环境学院 |
| YE Hengpeng |
中南民族大学 资源与环境学院 |
| LAN Jirong |
中南民族大学 资源与环境学院 |
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| Abstract: |
| Electrolytic manganese slag was composted and fermented with different additives of biomass wastes. Occurrence forms and contents of heavy metals (As, Zn, Pb, Cd, Cu) in composted samples were analyzed by Stepwise Extraction to evaluate effect of substrate on occurrence forms of heavy metals in manganese slag composting. The results show that activated sludge exerts the biggest impact on occurrence forms of heavy metals in manganese residue before and after fermentation. After fermentation, heavy metals of water soluble state drop by different degree, but residual state rise significantly. Fermentation process can passivate heavy metals in manganese slag. |
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