自然沉淀-离子交换联合方法处理某锡铅锌多金属矿选矿废水初步研究

A preliminary study on combined method of plain sedimentation and ion exchange process in treatment of beneficiation wastewater from a certain Sn-Pb-Zn polymetallic deposit

锡铅锌多金属矿选矿废水是含有机物和重金属两类污染物废水。采用自然沉淀对锡铅锌多金属矿选矿废水处理,一些重金属元素会脱除,而锌、锡变化不大,用离子交换会使废水出水达到铅锌工业污染物排放标准。用浓密池浓缩、自然沉淀和离子交换处理实际选矿废水,有机物和重金属元素被有效地削减和脱除。

The beneficiation wastewater from Sn-Pb-Zn polymetallic deposit contains contaminants including organic matters and heavy metals.When it is treated by plain sedimentation method some heavy metal elements are removed but Zn and Sn don't change much.When it is treated by ion exchange process the wastewater effluent reaches the emission standards of Pb-Zn industrial contaminants.The application of enrichment in thickening pool,plain sedimentation and ion exchange process in the treatment of actual beneficiation wastewater does effectively reduce and remove the organic matters and heavy metal elements.