磁场强化混凝处理矿井水

Magnetic field strengthening coagulation treatment of mine water

为提高矿井水的处理效果、降低处理成本,采用磁场与混凝沉淀相结合的方法对矿井水进行处理,分析非磁化PAC溶液的混凝处理效果及磁化水样、磁化PAC溶液对混凝效果的影响。结果表明:PAC溶液投加量为25 mg/L时,浊度去除率达到最大为86%;磁化水样、磁化PAC溶液对矿井水混凝效果均有积极影响,但后者影响更为明显。在磁感应强度0.2 T、磁化时间8 min后,磁化PAC溶液对矿井水的混凝效果最好,此时浊度去除率达到最高,比非磁化时提高4.5%。该研究表明磁化混凝工艺在短时间内可有效净化矿井水。

Aimed at an improved treatment efficiency of mine water and reduced cost of processing,this paper introduces the treatment of mine water by combining magnetic field with coagulating sedimentation and the analysis of the coagulation effects of PAC solution under non-magnetization and the coagulation effects of PAC solution under magnetization condition or water samples under magnetization condition.The results show that adding the PAC solution dosage of 25 mg/L gives a turbidity removal rate of 86%.Both magnetization treatment of water samples and PAC solution have a positive effects on mine water coagulation,with the latter more obvious.Magnetic field intensity of 0.2 T and magnetizing time of 8 minutes produce the best effect of magnetization PAC solution on the coagulation of the mine water,resulting in the highest turbidity removal value,4.5% higher than does non-magnetization.The study proves that magnetization coagulation process enables an effective purification of mine water in a shorter period of time.