Cosmetic wastewater deep treatment recycling method
A technology for advanced treatment and cosmetics, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as low ozone utilization rate, large equipment investment, and difficulty in industrialization, and achieve Guaranteed effluent water quality, excellent purification performance, and high oxygen utilization
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[0019] Example 1
[0020] A method for advanced treatment and recycling of cosmetic wastewater is characterized in that it comprises the following steps:
[0021] (1) Wastewater pre-conditioning: pass the organic wastewater into the regulating tank, conduct natural cooling, and stay hydraulically for 8h;
[0022] (2) Oxidation reaction: add sulfuric acid to adjust the pH to 3, then add 0.4g / L ferrous sulfate and 1.2ml / L hydrogen peroxide to form an oxidizing reagent, and carry out a catalytic oxidation reaction for 25-35min, deep degradation;
[0023] (3) Good nutrition treatment: pass the effluent from the oxidation treatment into an aerobic biochemical tank, add microorganisms in the tank, and the hydraulic retention time is 18h;
[0024] (4) Flocculation and sedimentation: introduce the effluent from the eutrophic treatment into the inclined plate sedimentation tank, add 6 ppm of PAM, flocculate and settle for 5 minutes, and further remove the suspended matter;
[0025] (5) Recycling ...
Example Embodiment
[0026] Example 2
[0027] A method for advanced treatment and recycling of cosmetic wastewater is characterized in that it comprises the following steps:
[0028] (1) Wastewater pre-conditioning: pass the organic wastewater into the regulating tank, conduct natural cooling, and stay hydraulically for 10h;
[0029] (2) Oxidation reaction: Add sulfuric acid to adjust the pH to 4, then add 0.5g / L ferrous sulfate and 1.4ml / L hydrogen peroxide to form an oxidizing reagent, and carry out a catalytic oxidation reaction for 35 minutes for deep degradation;
[0030] (3) Good nourishment treatment: pass the effluent from the oxidation treatment into an aerobic biochemical pond, add microorganisms to the pond, and the hydraulic retention time is 20h;
[0031] (4) Flocculation and sedimentation: introduce the effluent from the eutrophic treatment into the inclined plate sedimentation tank, add 7 ppm of PAM, flocculate and settle for 5 minutes, and further remove the suspended matter;
[0032] (5) Re...
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