累托石层孔材料在废水处理中的应用研究(Ⅱ)—电镀废水的处理

The application of rectorite on electroplating waste water treatment

利用累托石层孔材料处理电镀废水 ,累托石层孔材料用量 5 g L ,pH =4 ,添加剂FS0 1用量为0 .2 g L,搅拌吸附 60 90min,处理后水中残留CN- 质量浓度为 0 .0 1 4mg L ,残留Cr6 + 质量浓度 0 .1 6mg L ;在不改变原水 pH条件下 ,累托石层孔材料用量为 2 .5g L ,F0 2用量为 0 .5 g L ,搅拌时间为 2 0～ 4 0min ,处理后水中残留铬质量浓度为 0 .2mg L ;累托石加入Pt0 1试剂后 ,吸附能力增强 ,可用于处理各种含Cr6 + 电镀废水 ,当累托石层孔材料用量为 2g L ,pH =7,Pt0 1试剂 2 g L ,搅拌吸附 3 0min时 ,其吸附率可达99.89% ,处理水Cr6 + 质量浓度降低到 0 .3mg L .动态试验表明 :处理后的废液不仅含Cr6 + 浓度低 。

Treatment of electroplating wastewater with pillared rectorite was investigated. The post treatment waste water included 0.2 mg/L Cr 6+ under the condition of 2.5 g/L rectorite materials, 0.5 g/L F02, stirring time 20～40 min. After adding with reagent Pt01, the rectorite absorption ability increased and was suitable for various Cr 6+ -containing waster water. With the condition of 2 g/L rectorite materials, pH=7, 2 g/L Pt01, stirring time 30 min, the absorption efficiency was reached to 99.89%, and the Cr 6+ concentration was 0.3 mg/L.