CAJ | 학술논문

针对湖南某多金属矿选矿生产中产生的大量废水含有各种残余浮选药剂和重金属离子，若直接排放会造成水资源的较大浪费和环境污染，且无法直接回用于选矿生产，采用生物制剂协同氧化技术对选矿废水进行了处理，大幅降低了其化学需氧量（COD）值和重金属离子强度。进行了0#原水样、1#处理水样和2#尾矿库水样回用的浮选对比小型试验。试验结果表明：1#处理水样的选矿指标与0#原水样接近，说明1#水可以回用于浮选过程。2#尾矿库水样的选矿指标低于0#原水样和1#处理水样目前不能回用于浮选过程。
침대호남모다금속광선광생산중산생적대량폐수함유각충잔여부선약제화중금속리자，약직접배방회조성수자원적교대낭비화배경오염，차무법직접회용우선광생산，채용생물제제협동양화기술대선광폐수진행료처리，대폭강저료기화학수양량（COD）치화중금속리자강도。진행료0#원수양、1#처리수양화2#미광고수양회용적부선대비소형시험。시험결과표명：1#처리수양적선광지표여0#원수양접근，설명1#수가이회용우부선과정。2#미광고수양적선광지표저우0#원수양화1#처리수양목전불능회용우부선과정。
The mineral processing production of a W-Mo-Bi poly-metallic mine in Hunan generates large volumes of wastewater containing a variety of residual flotation reagents and heavy metal ions. If discharged directly, the moneral processing wastewaer will cause a big waste of water resources and environmental pollution. The wastewater can't be reused in ore dressing production directly. After treated by biologics complex-oxidation technique, the chemical oxygen demand (COD) value and heavy metal ions concentration of the wastewater were reduced greatly. The laboratory contrast flotation experiments between different water samples, including 0# tap water, 1# treated water and 2# water sample taken from tailings pond, have been conducted. Experimental results indicate that the effect of flotation using 1# treated water is almost the same as using 0# tap water. Thus, 1# water can be reused in flotation process. The mineral processing indexes using 2# tailing pond water are lower than those of 0# tap water and 1# treated water, which means 2# water can't be recycled in flotation process currently.