Acid mine drainage represents a major cause of environmental impact associated with the activity of mineral extractive industries. In this study, we evaluated the treatment of this wastewater through an anaerobic sequencing batch reactor at 15, 30, and 55 °C with a sludge of sulfidogenic and methanogenic origin. The operation at 30 °C with sulfidogenic sludge showed the highest average removal of sulfate (80 %), while the highest average removal of COD (92 %) occurred at 30 °C with methanogenic sludge. The sulfidogenic phases showed lower apparent kinetic constants (K^ap), compared at the same temperature, with the methanogenic phases, according to the first-order kinetic adjustment, considering residual concentration. The sulfate-reducing bacteria reproduced at 15 °C, according to growth enumeration by the most probable number method, which demonstrates its contribution to the growth of communities present in the inoculum due to the environmental conditions.

酸性矿山的排水是与采矿业活动有关的环境影响的主要原因。在这项研究中，我们评估了在15、30和55°C下通过厌氧测序间歇式反应器对这种废水的处理过程，其中产生了硫化物和产甲烷的污泥。在30°C的硫化物污泥下运行显示最高的硫酸盐平均去除率（80％），而在30°C的产甲烷污泥中COD的平均去除率最高（92％）。硫化物相显示出较低的表观动力学常数（K ^ap），在同一温度下与产甲烷相进行比较，根据一级动力学调整，并考虑残留浓度。根据通过最可能数法进行的生长枚举，还原硫酸盐的细菌在15°C时繁殖，这表明由于环境条件，其对接种物中存在的群落的生长做出了贡献。