高浓度含氰电镀废水的处理_蒋金平

•43•高浓度含氰电镀废水的处理高浓度含氰电镀废水的处理蒋金平*，杨文（盛隆资源再生(无锡)有限公司，江苏无锡214112）摘要：摘要：介绍了电解–氧化法处理高浓度含氰电镀废水的反应机理、工艺流程和工艺控制方法。应用结果表明，以该方法处理500~20000mg/L的高浓度含氰电镀废水，其回收液无CN−和重金属离子，主要成分为H2O，含少量COD和NH3，达到国家二类地区控制标准；每升废水耗能0.17kW·h，处理成本(不含管理成本)为￥1.27元。关键词：关键词：废水处理；电镀；氰化物；电解；氧化中图分类号：中图分类号：X781.1文献标志码：文献标志码：A文章编号：文章编号：1004–227X(2011)05–0043–03Treatmentofelectroplatingwastewaterwithhighcyanideconcentration//JIANGJin-ping*,YANGWenAbstract:Thereactionmechanism,procedureandprocesscontrolforthetreatmentofelectroplatingwastewatercontaininghighconcentrationofcyanidebyelectrolysis–oxidationmethodwereintroduced.TheapplicationresultsindicatedthattherecoveredbathismainlycontainedH2OwithasmallamountofCODandNH3andisfreeofCN−andheavymetalionsforanelectroplatingwastewatercontaining500-20000mg/Lcyanideaftertreatmentbythemethod.TheeffluentisuptotheemissionstandardfortypeIIareainChina.Theenergyconsumptionis0.17kW·hperliterofwastewaterandthetreatmentcostnotinvolvingmanage-mentcostis1.27RMB.Keywords:wastewatertreatment;electroplati