CAJ | 학술논문

对化学耗氧量铬法与锰法的应用情况进行对比分析，为今后的实践应用提供可靠的参考依据。随机抽取当地具有一定纳污功能的地表河流中上游清洁断面和下游污染断面水样，每天采集1次，共采集5天，所抽取水样分别采用铬法和锰法进行检测，并对这两种检测方法的检测结果进行对比分析。经研究发现，两种检测方法间存在明显的相关性，且在50---400mg／L间铬法具有较好的线性关系，在0．5--4．5mg／L间锰法具有较好的线性关系；铬法更加适用于工业废水以及生活污水的测定，而锰法则更加适用于地F水和净化处理后的地表水的测定。
대화학모양량락법여맹법적응용정황진행대비분석，위금후적실천응용제공가고적삼고의거。수궤추취당지구유일정납오공능적지표하류중상유청길단면화하유오염단면수양，매천채집1차，공채집5천，소추취수양분별채용락법화맹법진행검측，병대저량충검측방법적검측결과진행대비분석。경연구발현，량충검측방법간존재명현적상관성，차재50---400mg／L간락법구유교호적선성관계，재0．5--4．5mg／L간맹법구유교호적선성관계；락법경가괄용우공업폐수이급생활오수적측정，이맹법칙경가괄용우지F수화정화처리후적지표수적측정。
The application of two methods of COD Cr and Mn is contrasted to provide a reliable reference for future practical application. The water samples were collected random once everyday for total 5 days, in the upstream cleaning section and downstream pollution section of a local surface river. Then the water samples were detected with the two methods of COD Cr and COD Mn, and the detection results were compared and analyzed. It turned out that two kinds of detection method had an obvious correlation, and in 50mg/L-400mg/L chrome method has good linear relation, in 0.5,-4.5 mg/L Mn method bad good linear relation. Conclusion the study found, Cr method was more suitable for industrial wastewater and domestic sewage in the determination of manganese, and law was more suitable to the groundwater and surface water after purification determination.