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  • Open Access


    Study on the Treatment of Acid Mine Drainage Containing Fe2+ and Mn2+ Using Modified Spontaneous Combustion Gangue

    Xuying Guo1,2,*, Saiou Fu1, Junzhen Di3, Yanrong Dong3, Guoliang Jiang3

    Journal of Renewable Materials, Vol.9, No.3, pp. 541-555, 2021, DOI:10.32604/jrm.2021.012335

    Abstract The high concentrations of Fe2+ and Mn2+ in acid mine drainage make it difficult and expensive to treat. It is urgent that we find a cheap and efficient adsorption material to treat Fe2+ and Mn2+. As a solid waste in mining areas, coal gangue occupies a large area and pollutes the surrounding environment during the stacking process. Developing a method of resource utilization is thus a research hotspot. In this study, we modified spontaneous combustion gangue using NaOH, NaCl, and HCl by chemically modifying the minerals. We determined the optimal conditions for treating Fe2+ and Mn2+ in acid… More >

  • Open Access


    The Dynamic Experiment on Treating Acid Mine Drainage with Iron Scrap and Sulfate Reducing Bacteria Using Biomass Materials as Carbon Source

    Xianjun Wang1, Junzhen Di1,*, Yanrong Dong1, Yu Yang1, Bing Liang2, Fankang Meng1, Tingting Wang1, Wenbo An1, Zengxin Li3, Jianzhi Guo3

    Journal of Renewable Materials, Vol.9, No.1, pp. 163-177, 2021, DOI:10.32604/jrm.2021.011678


    The study is aimed at the problem of high content of Cr6+, Cr3+ and SO42– is high and low pH value in acid mine drainage (AMD). Moreover, treatment of AMD by sulfate reducing bacteria (SRB) requires the addition of carbon source, while the treating effectiveness is not good enough on its own. The sugarcane slag, the corn cob and the sunflower straw were selected as the SRB carbon source cooperating with iron scrap to construct the dynamic columns 1, 2 and 3. The mechanism of removing Cr6+, Cr3+, SO42– and H+ and the regularity of sustained

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