地表水TOC和CODMn相关关系研究

总有机碳TOC和高锰酸盐指数CODMn是反映水体受有机物质污染程度的重要指标，两个参数可能具有一定的相关关系，要对水体受有机物质污染程度做更加全面的评价，进行TOC和CODMn相关关系研究非常必要。天津市果河桥断面是国家重点水质监控断面，水质好坏关系着天津的饮用水安全。通过对不同季节、不同输水环境时TOC和COD”。相关关系进行的研究分析结果可以看出：在水质基质基本保持稳定时，TOC和COD”。之间显著线性相关；在水体基质发生变化时，TOC和CODmn之间没有相关性。

Relationship between TOC and CODMn of surface water

Total organic carbon （TOC） and chemical oxygen demand （CODMn） are the important index, which reflect the water pollution level by organic substances. These two parameters may have some correlation. In order to do a more comprehensive evaluation of the water degree affected by the organic pollution, we research the correlation between TOC and CODMn. Guoheqiao bridge is one of the important national automatic monitoring sections, and its water quality directly affects the safety of drinking water in Tianjin. Through the research and analysis results of the relationship between TOC and CODMn in different seasons and different water environment, a significant linear correlation between TOC and CODMn can be seen when the water quality remaine stable, but it is not relevant between TOC and CODMn when water quality change.