摘要
针对煤矿酸性废水污染严重、处理效果不理想的特点,以麦饭石和硫酸盐还原菌为包埋材料制作 3组固定化颗粒,构建1号(未超声)、2号(激活前超声)、3号(激活后超声),探讨了超声波强化技术对固定化颗粒处理煤矿酸性废水的影响。结果表明,3组固定化颗粒对煤矿酸性废水的处理效果为:2号>1号>3号,2号颗粒体系最终pH值为7.78,SO4^2-、Cr^6+和Cr^3+去除率分别达到89.37%、97.07%和99.39%。表明在麦饭石生物固定颗粒激活前进行超声波处理可有效提高其对煤矿酸性废水的处理效果,对修复煤矿酸性废水有一定的积极作用。
Aimed at the characteristics of acid mine drainage (AMD) with severe pollution and unsatisfactory treatment effect,three sets of immobilized particles were made by using Maifan stone and sulfate reducing bacteria as embedding materials, and No.1 (unultrasound), No.2 (pre-activation ultrasound), No 3(ultrasound after activation), the effect of ultrasonic intensification technology on the treatment of coal mine acid wastewater by immobilized particles was discussed. The analysis shows that the treatment effect of three groups of immobilized particles on coal mine acid wastewater is No.2>No.1>No.3, the final pH of No.2 particle system is 7.78, and the removal rates of SO4 ^2-, Cr^6+ and Cr^3+ are respectively 89.37%, 97.07% and 99.39%. The results show that the ultrasonic treatment before the activation of the biological fixed particles of the Maifan stone can effectively improve the treatment effect on the acid waste water in the coal mine, and has a certain positive effect on the repair of the acid waste water in the coal mine.
作者
狄军贞
郭俊杰
董艳荣
孙娟
李拓达
Di Junzhen;Guo Junjie;Dong Yanrong;Sun Juan;Li Tuoda(College of Civil Engineering, Liaoning Technical University, Fuxin, Liaoning 123000)
出处
《非金属矿》
CAS
CSCD
北大核心
2019年第4期90-92,共3页
Non-Metallic Mines
基金
国家自然科学基金(41672247,41102157)
辽宁省“兴辽英才”青年拔尖人才计划支持(XLYC1807159)
辽宁省自然科学基金(2015020619)
辽宁省教育厅一般项目(LIYL031)
关键词
煤矿酸性废水
生物麦饭石固定化颗粒
硫酸盐还原菌
超声波
acid mine drainage
immobilized biological maifan stone particless
sulfate reducing bacteria
ultrasonic
