Study On Wastewater Treatment Technology In Coal Chemical Industry

Coal chemical industry will produce a lot of waste water,wastewater treatment technology is essential.In developing coal chemical industry,it is possible to reduce its harm to the ecological environment.In this paper,the effect of coal chemical wastewater treatment in anaerobic hydrolysis acidification and biological contact oxidation process was studied.Combined with the role and influence of these aspects to get the best treatment in the process of anaerobic hydrolysis acidification + biological contact oxidation process.It is concluded that the removal efficiency of organic pollutants is more than 10%when HRT is about 18 h.The anaerobic baffled reactor(ABR)is used to consider the effect and the effect of HRT,temperature and impurity concentration on anaerobic hydrolysis and acidification.Finally,it is concluded that the best treatment effect in anaerobic hydrolysis acidification and biological contact oxidation process,that is,when HRT is 18h,the temperature is 10?20?,the impurity concentration of the wastewater is 1000mg/L,the removal efficiency of impurities in the coal chemical wastewater is higher.At the same time,the effect of the current Fenton oxidation method on the treatment of coking wastewater from coal chemical industry was studied.From the consideration of the initial pH,ferrous ion and hydrogen peroxide,the results showed that under the condition of acidity of 2,And the ratio of hydrogen peroxide to ferrous ion is between 2.5 and 3.5,and the reaction time is 1.5h,the removal effect of organic pollution is the most obvious.