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Method for treating waste water in heterogeneous catalysis and oxidation mode through hydrogen peroxide cooperated with ozone

A technology of ozone catalytic oxidation and heterogeneous catalysis, which is applied in the direction of oxidized water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. It can solve the problem of not very ideal degradation of antibiotic wastewater and achieve good removal Effect, excellent effect, effect of low power consumption

Inactive Publication Date: 2017-06-23
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

At present, most of the research on heterogeneous catalytic ozonation technology is aimed at relatively easy-to-degrade wastewater such as refining wastewater, papermaking wastewater, and printing and dyeing wastewater, but this technology is not ideal for the degradation of difficult-to-degrade antibiotic wastewater.

Method used

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  • Method for treating waste water in heterogeneous catalysis and oxidation mode through hydrogen peroxide cooperated with ozone
  • Method for treating waste water in heterogeneous catalysis and oxidation mode through hydrogen peroxide cooperated with ozone

Examples

Experimental program
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Embodiment 1-8

[0027] According to the above-mentioned hydrogen peroxide synergistic ozone heterogeneous catalytic oxidation treatment method for wastewater, the COD of the wastewater is 800mg / L, PH=7, and it is antibiotic wastewater after abnormal secondary biochemistry. The process parameters of each step in Examples 1-8 are as follows 1 shows:

[0028] Table 1 process parameter table

[0029]

Embodiment 9-14

[0032] Table 2 The influence of catalyst support and active components

[0033] Example Example 9 Example 10 Example 11 Example 12 Example 13 Example 14 Carrier type activated carbon diatomite γ-Al 2 o 3

Ceramsite γ-Al 2 o 3

Molecular sieve active ingredient Copper oxide Nickel oxide cobalt oxide manganese oxide iron oxide iron oxide

[0034] According to the method of the above-mentioned embodiment 1-14 hydrogen peroxide synergistic ozone heterogeneous catalytic oxidation treatment of wastewater, the COD of the treated wastewater is 800mg / L, PH=7, which is antibiotic wastewater after abnormal secondary biochemistry, and the COD removal rate of antibiotic wastewater is tested , the results are shown in Table 3 below.

[0035] Table 3 Wastewater COD removal rate test table

[0036]

[0037] Set comparative examples 1-4, comparative example 1 only chooses ozone to treat wastewater by catalytic oxidation a...

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Abstract

The invention discloses a method for treating waste water in a heterogeneous catalysis and oxidation mode through hydrogen peroxide cooperated with ozone. The method comprises the following steps: a, adding the waste water into a reactor, adding a load type ozone catalytic ozonation heterogeneous catalyst, then adding hydrogen peroxide solution and mixing; b, evenly introducing ozone into the reactor through a micropore titanium plate at the bottom of the reactor in a microbubble mode, and performing waste water treatment reaction. According to the method for treating the waste water in the heterogeneous catalysis and oxidation mode through the hydrogen peroxide cooperated with ozone, disclosed by the invention, more hydroxyl radicals are generated to perform strong catalytic oxidation treatment on the waste water, and a good effect of removing high-stability organic matter difficult to degrade in the waste water is achieved.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a method for treating wastewater by hydrogen peroxide and ozone heterogeneous catalytic oxidation. Background technique [0002] At present, the discharge of industrial wastewater is increasing day by day, and its composition is complex, which has caused great harm to the environment and human beings. Antibiotic wastewater is one of the recognized sources of pollution. In recent years, with the rapid development of the pharmaceutical and chemical industry, a large amount of antibiotic wastewater has been produced. , The concentration of organic matter such as ammonia nitrogen and sulfate in antibiotic production wastewater is high, and it contains biological inhibitory substances. The wastewater has complex components and poor biodegradability. It belongs to high-concentration refractory organic wastewater. It can remain in the environment for a long time, causing great...

Claims

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Application Information

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IPC IPC(8): C02F1/72C02F1/78C02F101/30
Inventor 杨文玲郜子兴吴赳
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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