Study on the Color of Biochemical Tail Water by Ozone Oxidation Process
With the increase of industrial and domestic wastewater discharge,environmental pollution is becoming increasingly severe,and it is urgent to reduce the harm of sewage to the environment.Chromaticity,as one of the important directions of sewage treatment,has gradually been widely valued.In order to reduce pollution and improve the reuse rate of industrial water,the characteristics and hazards of wastewater chromaticity were analyzed.It was verified that the chromaticity of biochemical wastewater,CODcr,and humic acid concentration were related,and chromaticity was independent of iron and manganese ion concentration.Finally,the influence of ozone concentration and oxidation time on the removal rate of biochemical wastewater chromaticity in ozone oxidation process was explored.The optimal oxidation time was determined to be 7 minutes,and the optimal ozone mass concentration was 3.05 mg/L,providing a theoretical basis for subsequent research on biochemical wastewater chromaticity removal.
NETL
NSTL
万方数据
