突发性氰化物污染原水的应急处理工艺研究  

Study on Emergent Treatment Process of Sudden Cyanide Pollution Raw Water

作　　者：魏艳[1] 康宇炜[1] 章民驹[1] 杨文杰[1] 王晓[1] 孙承志[1] 区良益[1] 钟宁[1] 

机构地区：[1]南海发展股份有限公司,广东佛山528200

出　　处：《中国给水排水》2009年第23期48-50,共3页China Water & Wastewater

基　　金：广东省技术创新项目(2006428010)

摘　　要：为应对水源水受到突发性污染,以常规净水工艺为基础,以氰化物为目标污染物,开展了应急处理工艺研究。试验结果表明:单独混凝工艺对氰化物的去除率较低,只有20%～30%。高锰酸钾预氧化对去除氰化物无增强作用。预氯化可以有效去除氰化物,但会生成相应量的氯化氰;调节原水的pH>9,可以使生成的氯化氰最终转化为氨氮,再将pH值调回8后,氰化物和氯化氰浓度均无明显变化,氰化物污染得以稳定、无害化去除。投氯量与原水中氰化物浓度存在线性关系,可据此指导水厂的应急生产。Because sudden pollution of domestic water sources was at high risk,a study on emergent treatment process of sudden cyanide pollution raw water was performed based on the conventional water purification processes. The results show that the removal efficiency of cyanide by coagulation is low,about 20% to 30%. The pre-oxidation process by KMnO4 has no enhancement on the removal efficiency. Cyanide is efficiently removed by the prechlorination process,but a considerable amount of cyanogen chloride (CNCl) is fo...

关 键 词：突发性污染 应急处理 氰化物 预氧化 混凝 

分 类 号：TU991.2[建筑科学—市政工程]