工业废水中测定六价铬的预处理技术

Pretreatment Technique of Determination of Cr^(6+) in Industry Wastewater

根据复合絮凝剂与阳离子交换树脂两者在分离与处理技术上所起的不同作用 ,提出了将两法联合用作工业废水中测定Cr6+ 的预处理技术 ,通过一系列条件试验 ,确定最佳预处理条件。结果表明 ,该法具有去色、去浊率高 ,分离效果佳 ,排除干扰离子能力强 ,分析样品重现性好 ,准确度高 ,操作简便、快捷的优点。

There had different effect of composite flocculation and cationic ion exchange resin in the isolation and treat of wastewater. To combine these two methods for pretreatment of Cr 6+ before determination. The best reaction condition was determined after research. Results indicated that this method had high colourity decrease, good isolation effect, high anti-disturbance to disturbing ion, good repeatability, high accuracy, and was simple and easy to operate.