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Fe^(2+)、Mn^(2+)、SO_4^(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0.125~0.200 mm时,Fe^(2+)、Mn^(2+)、SO_4^(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。
Aiming at the environmental pollution problems caused by self-ignited coal gangue and wastewater from coal mine,the removing effects of Fe（2＋）,Mn（2＋） 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.
作者
郭旭颖
里莹
董艳荣
狄军贞
邢经纬
Guo Xuying;Li Ying;Dong Yanrong;Di Junzhen;Xing Jingwei(College of Science, Liaoning Technical University, Fuxin 123000, China;College of Mining Engineering,Liaoning Technical University, Fuxin 123000, China;College of A rchitecture Engineering,Liaoning Technical University, Fuxin 123000, China)
出处
《工业水处理》
CAS
CSCD
北大核心
2018年第6期22-26,共5页
Industrial Water Treatment
基金
国家自然科学基金资助项目(51304114
41672247)
辽宁省教育厅科学技术研究资助项目(LJ2017FAL016)
关键词
硫酸盐还原菌
自燃煤矸石
煤矿废水
sulfate-reducing bacteria
self-ignited coal gangue
wastewater from coal mines
