高浊度钨多金属矿选矿废水处理及回用试验研究  

Treatment and Reuse of Highly Turbidity Wastewater from Mineral Processing of Tungsten Polymetallic Ore

作　　者：冯青舒 薛珂 陈文胜 李文风[2] 王舰 赵文坡 穆迎迎 陆泽雍 FENG Qingshu;XUE Ke;CHEN Wensheng;LI Wenfeng;WANG Jian;ZHAO Wenpo;MU Yingying;LU Zeyong(Hunan Nonferrous Chenzhou Fluorine Chemical Co Ltd,Chenzhou 423000,Hunan,China;Changsha Research Institute of Mining and Metallurgy Co Ltd,Changsha 410012,Hunan,China)

机构地区：[1]湖南有色郴州氟化学有限公司,湖南郴州423000 [2]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿冶工程》2023年第2期74-77,共4页Mining and Metallurgical Engineering

摘　　要：针对某钨多金属矿选矿废水中固体悬浮物(SS)和Ca^(2+)含量较高的情况,采用絮凝沉降⁃化学除钙法进行废水处理,考察了絮凝剂用量、搅拌时间、搅拌速度、反应温度及反应pH值等因素对絮凝⁃沉淀效果的影响,优化了废水絮凝沉降⁃化学除钙法处理工艺。将处理水回用于萤石浮选,闭路试验结果表明,处理水浮选指标与清水指标相当,表明絮凝⁃沉淀工艺处理后的废水可用于萤石浮选生产。A process consisting of flocculation⁃sedimentation and chemical decalcification was adopted to treat mineral processing wastewater of a tungsten polymetallic ore with high suspended solid(SS)and Ca^(2+)contents.The influence of flocculant dosage,stirring time,stirring speed,water temperature and pH value on flocculation⁃sedimentation performance was investigated,and the process was then optimized.A closed⁃circuit test of fluorite flotation with the recycled water shows that the flotation index obtained is similar to that using fresh water,indicating that the wastewater after treatment is applicable for fluorite flotation.

关 键 词：废水处理 絮凝 沉淀 浊度 萤石浮选 选矿废水 回用 

分 类 号：X703[环境科学与工程—环境工程]