Method for treating wastewater containing oxidized substances and treatment device for wastewater containing oxidized substances
A technology of treatment method and treatment device, applied in the direction of special compound water treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problem of no disclosure, activated carbon degradation, no disclosure of activated carbon recycling, and no report of the number of recirculation and other issues to achieve the effect of reducing the amount of usage
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no. 2 Embodiment approach
[0227] [Treatment device for wastewater containing oxidized substances]
[0228] Hereinafter, the processing apparatus of the oxidized substance containing waste water which concerns on the 2nd Embodiment of this invention is demonstrated. image 3 It is a schematic diagram showing the treatment apparatus 101 of oxidizable substance-containing wastewater according to the second embodiment.
[0229] image 3 The treatment device 101 of the second embodiment shown includes: a reaction tank 11, a first pH adjustment device 14, a hydrogen peroxide addition device 16, a hydrogen peroxide concentration measurement device 18, a pH measurement device 19, an insolubilization tank 21, and a separation device. 22. The second pH adjustment device 24 , the second return device 34 , the third return device 38 , the dilution tank 41 and the storage tank 61 .
[0230] Therefore, in the second embodiment, the same reference numerals are assigned to the same components as those in the first e...
Embodiment 1～7
[0270] This study follows figure 1 The flow shown, using Figure 5 The device shown implements the Fenton reaction in the presence of activated carbon. The use of the above-mentioned Fenton reaction can be regarded as a confirmation experiment of the treatment method of oxidized substance-containing wastewater of the present invention.
[0271] Figure 5 is a schematic diagram showing the apparatus used in this example. Figure 5 The shown device 200 has a stirrer 1, a constant temperature tank 2, an electronic balance 3, a tube pump 4, a Duran bottle 5, a hydrogen peroxide adding device 6, a sulfuric acid adding device 7, a sodium hydroxide adding device 8, a pH electrode 9 and pH controller 10. The sulfuric acid adding device 7 and the sodium hydroxide adding device 8 are used to adjust the pH adjustment of the reaction solution in the Duran bottle 5 .
[0272] The reaction was carried out under the following reaction conditions: 1,4-dioxane 500ppm (0.25g / 500ml, TOC 272...
Embodiment 8～11
[0282] Assuming that the 1,4-dioxane concentration was 50 ppm (TOC 27 ppm), a total of 45.4 ml of 4% by mass hydrogen peroxide was added at each of the following addition rates. In addition to adding hydrogen peroxide at a rate of V h Respectively set to 0.05% / min (Example 8), 0.5% / min (Example 9), 1% / min (Example 10), 2% / min (Example 11), the same as Example 1 conduct. The results are shown in Table 1.
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