电镀废水氧化破氰工艺优化试验  

Process Optimization of Breaking Cyanogens by Oxidation for Treatment of Electroplating Effluent

作　　者：黄中子[1] 李寒娥[2] 胡曰利[1] 吴哓芙 

机构地区：[1]中南林业科技大学,湖南长沙410004 [2]佛山科学技术学院,广东佛山528000

出　　处：《中南林学院学报》2006年第2期96-99,105,共5页Journal of Central South Forestry University

基　　金：广东省佛山市重点科技攻关项目"佛山城市污水生物净化处理技术研究"(02060043)

摘　　要：采用二级氧化法对某电镀厂含氰废水处理工艺进行了正交和单因素优化试验，当完全氧化投药比m（NaClO）：m（CN^-4）=10，一级pH=10．5～11,二级pH≥9．反应时间为15-25min时，氰去除率可达到99％以上,pH值对反应具有决定性影响，pH值越高处理效果越好；优化工艺处理后出水水质可达到广东省一级排放标准．The two-stage oxidation reaction process is used in orthogonal and single factor optimization trials to treat electroplating effluent containing cynide from an electroplating factory. The result shows that under the condition of complete oxidation with NaCIO：CN^-=10, pH=10. 5-11.0 in the first stage, and pH≥9 in the second stage, HRT=15-25 min, the removal rate of cyanogen reaches above 99% and that the pH is the key factor affecting the reaction with a general trend： the higher the pH, the better the treatment effect. The quality of the effluent using the optimized treatment process meets the first grade of Pollutant Discharge Standard of Guangdong Province.

关 键 词：环境工程 环境保护 水污染控制 古氰电镀废水 二级氧化 工艺优化 

分 类 号：X781.1[环境科学与工程—环境工程]