富营养化东湖水中COD与TOC的相关性研究  

Correlation between COD and TOC in Eutrophic East Lake

作　　者：江莉[1] 张业明[2] 曹刚[1] 郝龙[1] 林安[1] 甘复兴[1] 

机构地区：[1]武汉大学资源与环境科学学院环境工程系,武汉430079 [2]黄石理工学院环境科学与工程院,黄石435003

出　　处：《环境科学与技术》2007年第10期37-39,共3页Environmental Science & Technology

基　　金：国家自然科学基金资助(50499332)

摘　　要：为了快速综合的监测有机污染物,及时全面地掌握环境水样中有机污染量,探索性地研究了富营养化湖泊中COD与TOC的相关性。根据东湖水样的有机质谱分析结果,重铬酸钾法测定富营养化水体的适用性在文中得到论证。以大量实验数据为依据,推导出了富营养化湖泊水体中TOC和COD的相关方程。该方程的相关系数r=0.9585,|r|>r0.01,38说明线形相关关系高度显著。实验所得线性回归方程的正确性在理论上得到支持,其较好的精确性通过COD实测值与COD计算值最大相对误差为13.72%得到了证实。对于富营养化东湖水,TOC比COD更能直接合理地表征水体受到有机物质污染的程度。The correlation between COD and TOC in eutrophic lakes was studied for the purpose of rapid monitoring and detecting quantities of organic pollutants. Results of organic mass spectrometry analysis of East Lake,Wuhan showed the applicability of potassium dichromate method in eutrophic waters. Based on experimental data,the equation of correlation between TOC and COD in eutrophic waters was deduced,and results illuminated highly significant linear correlation and accuracy,with the biggest error between calculated value and measured value of COD of 13.72%. For the eutrophic East Lake,TOC can better represent the pollution degree of organic matters than COD.

关 键 词：富营养化 COD TOC 相关性 有机质谱分析 

分 类 号：X830.2[环境科学与工程—环境工程]