The article educes logistic kinetic model that fits to describe the biochemical oxygen-consumed process of industrial wastewater and compares the difference between logistic kinetic model and the first-order kinetic model. The ratio of BOD5/CODcr of the wastewater is determined and then the biochemical oxygen-consumed curve is analyzed. It studies the oxygen-consumed process with logistic model and compares Klog and S0 under different dilution rates. The results demonstrate that Klog and S0 increa...