A microwave-enhanced micro-electrolysis combined oxidation method for treating rubber additive wastewater
A technology of rubber additives and oxidation treatment, applied in chemical instruments and methods, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of heavy economic burden, high cost per ton of water, high energy consumption, etc., and achieve investment and operation The effect of low cost, reduced speculation, and increased removal rate
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Embodiment 1
[0048] The COD of a certain rubber additive wastewater is 7500 mg / L, pH: 8.5. First carry out acidification reaction treatment, add sulfuric acid to adjust pH: 3.0, and react for 5 minutes. At this time, the COD of the acidified rubber additive wastewater is 7300mg / L; the acidified wastewater is added with hydrogen peroxide 7300mg in a ratio of 1:1 of hydrogen peroxide and wastewater. / L, reaction for 30 minutes, pH: 3.0, COD of the oxidized rubber auxiliaries wastewater: 7000mg / L, pH: 3.0; the oxidized wastewater enters the micro-electrolysis reactor for reaction, and the gas-water ratio is 20:1. Air, the reaction time is 120 minutes, the COD of the rubber auxiliaries wastewater after the micro-electrolysis reaction is 4500mg / L, pH: 5.5; the rubber auxiliaries mixed wastewater after the micro-electrolysis reaction enters the microwave reactor for reaction, and the microwave power is 600W. Time 10 minutes, the pH of the rubber auxiliary wastewater after microwave reaction: 5.5...
Embodiment 2
[0050] The COD of a certain rubber additive wastewater is 6500mg / L, pH: 8.5. First carry out acidification reaction treatment, add sulfuric acid to adjust pH: 3.0, and react for 5 minutes. At this time, the COD of the acidified rubber additive wastewater is 6300mg / L; the acidified wastewater is added with hydrogen peroxide at a ratio of 1:1 to 6300mg of hydrogen peroxide. / L, react for 30 minutes, pH: 3.0, COD of the oxidized rubber auxiliaries wastewater is 6000mg / L, pH: 3.0; the oxidized wastewater enters the micro-electrolysis reactor for reaction, and the gas-water ratio is 15:1. Air, the reaction time is 70 minutes, the COD of the rubber auxiliaries wastewater after the micro-electrolysis reaction is 4500mg / L, pH: 5.5; the rubber auxiliaries mixed wastewater after the micro-electrolysis reaction enters the microwave reactor for reaction, the microwave power is 500W, and the treatment Time 10 minutes, the pH of the rubber auxiliary wastewater after microwave reaction: 5.5,...
Embodiment 3
[0052] A method for treating rubber auxiliary waste water by utilizing microwave-enhanced micro-electrolysis combined oxidation treatment of a certain rubber auxiliary waste water of the present invention is adopted. The COD of a certain rubber additive wastewater is 6000mg / L, pH: 8.0. First carry out acidification reaction treatment, add sulfuric acid to adjust pH: 3.0, and react for 5 minutes. At this time, the COD of the acidified rubber auxiliaries wastewater is 5800 mg / L; the acidified wastewater is added with 5800 mg of hydrogen peroxide at a ratio of 1:1 to the wastewater. / L, react for 30 minutes, pH: 3.0, COD of the oxidized rubber auxiliaries wastewater is 5500mg / L, pH: 3.0; the oxidized wastewater enters the micro-electrolysis reactor for reaction, and the gas-water ratio is 15:1. Air, the reaction time is 100 minutes, the COD of the rubber auxiliaries wastewater after the micro-electrolysis reaction is 3500mg / L, pH: 5.5; the rubber auxiliaries mixed wastewater afte...
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