重铬酸钾法测定COD废液处理方案的设计

Methods to Dispose of COD Waste Liquid Using Potassium Dichromate(K_2Cr_2O_2)

目的 探讨重铬酸钾法测定COD废液的四种处理方案 ,为实验室处理该废液提供参考依据 ,以减少环境污染。方法 设计了四种成本低 ,操作简单的方法 ,并逐一分析对比。结果 四种处理方案使酸度高、有害金属汞、铬、银含量高得以控制。结论 方案

Objective Four methods are discussed in this article to dispose of COD waste liquid using Potassium Dichromate (K 2Cr 2O 2)in order to gather more data for this waste liquid and reduce environmental pollution.Methods Each of the four methods is analyzed individually and compared with the other three.They are of low cost and easy to be put into practice.Results The content of acid and of such harmful metals as mercury,chromium and silver,can be prevented from rising too high.Conclusion The third method is of the best laboratory performance.