Method for treating ultrahigh-concentration organic industrial wastewater

[0018] like figure 1 As shown, the process flow of the present invention is: grid filtration→high-efficiency catalytic oxidation reaction→high-efficiency anaerobic reaction→contact oxidation reaction→sedimentation in sedimentation tank→standard effluent discharge.

[0019] The detailed steps are:

[0020] (1) High-efficiency catalytic oxidation reaction. Under the action of the improved catalytic carrier and oxidant, organic impurity molecules in wastewater undergo high-density catalytic redox reaction and coagulation to degrade organic pollutants; It is carried out under the following conditions, the weight ratio of waste water to the improved catalytic carrier and oxidant is 10:2:1, the pH is 10, and the hydraulic retention time is 0.5h; the improved catalytic carrier includes the following components in weight ratio, TiO 2 50 parts, 10 parts of zeolite, 10 parts of shells, 10 parts of steel slag, 20 parts of cinder; the oxidizing agent includes the following weight ratio ...

[0024] A method for treating ultra-high concentration organic industrial wastewater, the steps are as follows,

[0025] (1) High-efficiency catalytic oxidation reaction. Under the action of the improved catalytic carrier and oxidant, organic impurity molecules in wastewater undergo high-density catalytic redox reaction and coagulation to degrade organic pollutants; Under the following conditions, the weight ratio of wastewater to the improved catalytic carrier and oxidant is 100:2:1, the pH is 5, and the hydraulic retention time is 2h; the improved catalytic carrier includes the following components in weight ratio, TiO 2 99 parts, 0.2 part of zeolite, 0.2 part of shell, 0.3 part of steel slag, 0.3 part of cinder; the oxidizing agent includes the following components in weight ratio, KMnO 4 30 parts, FeSO 4 40 parts, Na 2 o 2 30 servings.

[0026] (2) High-efficiency anaerobic reaction, the anaerobic reaction is carried out in the anaerobic reactor to realize the granu...

[0029] A method for treating ultra-high concentration organic industrial wastewater, the steps are as follows,

[0030] (1) High-efficiency catalytic oxidation reaction. Under the action of the improved catalytic carrier and oxidant, organic impurity molecules in wastewater undergo high-density catalytic redox reaction and coagulation to degrade organic pollutants; Under the following conditions, the weight ratio of wastewater to the improved catalytic carrier and oxidant is 55:2:1, the pH is 7.5, and the hydraulic retention time is 1h; the improved catalytic carrier includes the following components in weight ratio, TiO 2 75 parts, 5 parts of zeolite, 5 parts of shells, 5 parts of steel slag, 10 parts of coal slag; the oxidizing agent includes the following components by weight ratio, KMnO 4 40 parts, FeSO 4 30 parts, Na 2 o 2 30 servings.

[0031] (2) High-efficiency anaerobic reaction, the anaerobic reaction is carried out in the anaerobic reactor to realize the gra...