某钨多金属矿选矿废水处理与回用技术试验研究  

Experimental Study on Treatment and Reuse Technology of Mineral Processing Wastewater from a Tungsten Polymetallic Ore

作　　者：刘铭[1] 阳华玲[1] 易峦[1] LIU Ming;YANG Hualing;YI Luan(Changsha Research Institute of Mining and Metallurgy Co.,Ltd.,Changsha,Hunan 41oo12,China)

机构地区：[1]长沙矿冶研究院有限责任公司,湖南长沙410012

出　　处：《矿业研究与开发》2024年第5期260-266,共7页Mining Research and Development

摘　　要：湖南某钨多金属矿选矿废水含有硫化矿浮选药剂和氧化矿浮选药剂,废水中浮选药剂残留量大、水质复杂,现场采用石灰沉淀工艺处理后能达标排放,但不能回用,枯水期严重缺水。针对企业选矿废水不能回用的难题,研发出以CR-2澄清剂及微电解氧化-絮凝一体化装置为核心的高效絮凝澄清-微电解氧化絮凝处理与回用新技术。结果表明,选矿废水经新技术处理后出水水质达到《污水综合排放标准》(GB 8978—1996)一级标准,且回用于钼、钨浮选流程可获得与现场清水相当的试验指标,实现了选矿废水的有效净化和高效回用。高效絮凝澄清-微电解氧化絮凝处理与回用新技术能有效解决我国钨多金属矿选矿废水处理与回用难题,可为同类型矿山选矿废水处理与回用提供借鉴。The mineral processing wastewater of a tungsten polymetallic ore in Hunan contains sulfide ore flotation reagent and oxidized ore flotation reagent.The flotation reagent residue in the wastewater is large and the water quality is complex.After the on-site treatment by lime precipitation process,it can be discharged up to the standard,but it can not be reused.There is a serious shortage of water in the dry season.Aiming at the problem that the mineral processing wastewater cannot be reused,a new technology of efficient flocculation clarification and microelectrolysis oxidation flocculation treatment and reuse with CR-2 clarifier and microelectrolysis oxidation and flocculation integrated device as the core was developed.The results show that the effluent quality of the mineral processing wastewater treated by the new technology reaches the first grade standard of Integrated Wastewater Discharge Standard(GB 8978—1996).Reused in the flotation process of molybdenum and tungsten,the test index can be obtained,which is equivalent to that of on-site clean water,and the effective purification and efficient reuse of mineral processing wastewater are realized.The technology of efficient flocculation clarification and microelectrolysis oxidation flocculation treatment can effectively solve the problem of treatment and reuse of mineral processing wastewater of tungsten polymetallic ore in China,and can provide reference for the treatment and reuse of mineral processing wastewater of similar mines.

关 键 词：多金属矿 选矿废水 絮凝澄清 微电解技术 

分 类 号：TD98[矿业工程—选矿] X753[环境科学与工程—环境工程]