College of Mining, Liaoning Technical University

基于阜新矿区矿井水的水质分析,通过混凝试验研究了聚合氯化铝、聚合硫酸铁和聚氯化铝铁3种混凝剂的矿井水处理效果,对比了聚合氯化铝和聚丙烯酰胺单独投加与配合投加的矿井水处理效果。研究结果表明:阜新矿区矿井水是含悬浮物矿井水,3种混凝剂对阜新矿区矿井水均具有良好的处理效果,其中聚合硫酸铁和聚氯化铝铁的处理效果较好;最佳混凝剂和最佳投加量因矿井水水质差异而不同;聚合氯化铝和聚丙烯酰胺单独投加的矿井水处理效果不及配合投加,当聚合氯化铝投加量为25 mg/L、阳离子型或非离子型聚丙烯酰胺投加量为0.3 mg/L时,出水浊度小于10 NTU;建议选用聚合氯化铝或者聚合硫酸铁为混凝剂,聚丙烯酰胺为助凝剂,以达到较好的矿井水处理效果。

Based on the water quality analysis of the mine water in Fuxin Mining area, the mine water treatment effects of such coagulants as polyaluminium chlori de, polymeric ferric sulfate and polyaluminum ferric chloride were investigated by means of coagulation experiments. The treatment effects of the separate dosing of pol yaluminium chloride or polyacrylamide were then compared with that of the compound dosing of polyaluminium chloride and polyacrylamide.The studies demonstrate th at the mine water of Fuxin Mining Area is the mine water containing suspended solids; the three kinds of coagulants for mine water of Fuxin Mining Area have good trea tment effects, with polyaluminium chloride and polymeric ferric sulfate better than polyaluminum ferric chloride; the best coagulant and the best dosing quantity of differ ent kinds of mine water are difference due to component difference.Furthermore, the treatment effects of mine water under the separate dosing of polyaluminium chlorid e or polyacrylamide are worse than that of the compound dosing of polyaluminium chloride and polyacrylamide. When the dosing quantity of polyaluminium chloride is 2 5 mg/L and the cationic and nonionic polyacrylamides are 0.3 mg/L, the effluent turbidity is less than 10 NTU.Finally, polyaluminium chloride or polymeric ferric sulfate a s coagulant and polyacrylamide as coagulant aid are suggested in order to achieve better effects of the mine water treatment.

国家自然科基金资助项目(51404134)；辽宁省教育厅科学研究资助项目(L2015220)；