滦河水中总有机碳(TOC)与化学需氧量(COD_(cr))相关性研究

Correlation of TOC and COD_(cr) in Water of Luanhe River

总有机碳(TOC)与化学需氧量(COD_(cr))均为反映水体有机物污染情况的指标。当水体稳定时,总有机碳(TOC)与化学需氧量(COD_(cr))存在着一定的相关性。通过对滦河水近一年多的监测,得到相关数据。对二者的相关性进行线性回归分析,得出线性回归方程:y=2.780,2x+1.097,3,相关系数:R=0.929,2。对二者的相关性进行显著性检验,检验所得F值远大于F0.01(1,40),二者具有十分显著的相关性。因此可通过TOC值的测定来准确、快速反应出COD_(cr)值,及时反应出水质的变化。

The Total Organic Carbon(TOC)and Chemical Oxygen Demand(CODcr)all reflect the situation of water organicpollution index.When the water is stable,there exists a certain correlation between TOC and CODcr.Through the monitoringof Luanhe River water nearly more than a year,relevant data was obtained.Based on a linear regression analysis on thecorrelation of the two,it is concluded that the linear regression equation is y=2.780,2+1.097,3x,correlation coefficient isR=0.929,2.As significance inspection test shows,the correlation of both the F values is greater than F0.01(1,40),soboth have the extremely significant correlation.Through the determination of TOC value,CODcr value and reaction of thewater quality changes can be reflected in a timely manner.