混凝法在选矿废水处理中的应用现状及发展

摘要

The source and characteristics of the mineral processing wastewater, advantages and disadvantages of various treatment methods were briefly described. It elaborates the mechanism of coagulation method and emphatically analyzes coagulant, water quality and water conservancy conditions on the impact of the mineral processing wastewater treatment. And it introduces application status of coagulation method in lead-zinc mine, iron mine, gold mine, molybdenum mine, tungsten mine and phosphate rock wastewater treatment. Then the development direction of coagulation method in the mineral processing wastewater treatment was point out, including coagulation mechanism and influence factors, research and development of high efficient coagulant, coagulation method combined with the tallings natural sedimentation and thickener technology, establish reasonable process, realizing wastewater zero emissions of dressing plant.%简要描述选矿废水的来源、特点及各种处理方法的优缺点。阐述混凝法的作用机理，着重分析混凝剂、水质状况及水力条件等因素对选矿废水处理产生的影响，介绍混凝法在铅锌矿、铁矿、黄金、钨矿和磷矿等废水处理的应用现状。最后指出混凝法在选矿废水处理中的发展方向是要加强对混凝作用机理与影响因素的研究，加大对高效混凝剂的研发，同时将混凝法与尾矿库自然沉降、浓密机技术有机结合，制定合理流程，实现选厂废水零排放。