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研究了武钢焦化厂生化处理后的废水中ＣＯＤ值与紫外吸光度的关系，并建立了回归方程，结果表明．当废水中的ＣＯＤ值在０～１００ｐｐｍ时的相对误差均<6．４％。
The relationship between COD value and UV absorbance in waste water after biochemical treatment in WISCO coking plant was studied, and the regression equation was established. When the COD value of wastewater is 0 ~ 100ppm, the relative error is less than 6.4%.