摘要
本论文研究了在同一反应槽中同时除掉CN- 和Cu+两种离子的方法——陶基二氧化铅阳极棒电解氧化CN-和不锈钢阴极电沉积Cu+。分别在电流密度、温度、pH值、电解质、极距和电极面积比等参数方面做了实验,得出了最佳的工艺条件:阴极电流密度为0.4A/dm2,电极面积比(阴:阳)为2:1,极距为3cm,温度为55℃,pH值为10.5,电解质氯化钠加入量为0.5g/L。在此条件下,电解废液2h可以使CN-浓度从385mg/L降到58mg/L;Cu+浓度从450mg/L降到48mg/L。
The method to remove two inos of CN- and Cu+ in the same reaction basin at the same time was studied.PbO2 anode was used to electrooxidate CN- ions and stainless steel cathode to electrodeposit Cu+ ions. Experiments are done with these parameters such as,electric current intensity,temperature, pH value, electrolyte, pole distance and electrode surface area and the following optimum technological conditions were achieved:the electric current intensity is 0.4A/dm2;the ratio of electrode surface area (cathode to anode),2:1;the pole distance,3cm;the temperature,55℃;the pH value,10.5;the adding amount of NaCl,0.5g/L.Under the conditions,electrolysing the wastewater for two hours can decrease the CN- ions concentration from 385mg/L to 58 mg/L and the Cu+ ions concentration from 450mg/L to 48 mg/L.
出处
《水处理技术》
CAS
CSCD
北大核心
2004年第3期153-156,共4页
Technology of Water Treatment
