云南某铅锌矿废水清洁处理对生产的影响

对云南某铅锌矿选矿厂进行清洁生产试验。首先,了解选矿厂各个工艺流程,并进行分析解剖,然后,利用监测等方式为外排废水的产出找出最初原因,再利用现场模拟,为废水产出及再次利用等找出相似的比例量和具体原因,其中,耗水量较大的工段主要发生在磨浮工段和重选工序,最后,利用以上工作成果,找出较优的解决方式,并对选矿厂进行清洁优化改造。最终,可为矿山年减少新水用量约50000 m3,年节约19800度电,年减少生产废水约38984.4 m3,减少COD排放0.27 t/a,减少重金属Pb排放量6.24 kg,锌排放量48.24kg,镉排放量2.01 kg。可得出结论,在选矿工艺过程中将废水外排的量减少或消除比在末端治理废水要好,不仅经济可行,且节约材料、能耗1]。

The impac on Production of a Lead-zinc Mine in Yunnan Wastewater Cleaning Process

Abstract: Cleaner production test for a lead-zinc concentrator in Yunnan, and thus the initial cause of wastewater discharged to analyze and optimize the transformation. The results show that reducing the amount of waste water in the outer row in the beneficiation process or elimination of waste water treatment is better than at the end, not only economically viable, and saving material and energy consumption.