【摘要】 针对自燃煤矸石和煤矿废水污染环境的问题,采用单因素试验和对比试验探究了SRB协同自燃煤矸石对煤矿废水中Fe²⁺、Mn²⁺、SO₄^2-的去除效果。结果表明,相比于自燃煤矸石和NaOH改性自燃煤矸石,SRB协同自燃煤矸石处理煤矿废水效果更佳。当振荡时间为180 min,SRB协同自燃煤矸石投加量为40 g/L,废水初始pH=5,振荡频率为150 r/min,粒径为0.125⁰.200 mm时,Fe²⁺、Mn²⁺、SO₄^2-去除率分别可达到84.38%、83.33%和77.85%。SRB改变了煤矸石的矿物组成,促进了其对废水中污染物的去除。更多还原

【Abstract】 Aiming at the environmental pollution problems caused by self-ignited coal gangue and wastewater from coal mine,the removing effects of Fe²⁺,Mn²⁺ and SO₄^2- in wastewater from coal mines,by SRB synergized with the selfignited coal gangue using single factor and contrast tests has been investigated. The results show that the treatment effect of coal mine wastewater by SRB synergized with self-ignited coal gangue is better than that of self-ignited coal gangue and Na OH modified self-ignited coal gangue. When the optimum removing conditions are as follows:oscillation time is 180 min,dosage of SRB synergized with self-ignited coal gangue 40 g/L,initial p H of wastewater 5,oscillation frequency 150 r/min,and particle size 0.125-0.200 mm,the removing rates of Fe2+,Mn2+and SO42-can reach 84.38%,83.33% and 77.85%,respectively. SRB has changed the mineral constituents of coal gangue,and facilitated its removing effect on the pollutants in wastewater.更多还原