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Multiphase catalytic oxidation sewage treatment method

A heterogeneous catalytic oxidation and solid-phase catalyst technology, which is applied in the direction of oxidation water/sewage treatment, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of high cost, low hydroxyl radical generation rate, Problems such as low removal rate of organic matter

Active Publication Date: 2013-07-17
UNIV OF JINAN +1
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Problems solved by technology

Both of the above two methods use ozone to generate hydroxyl radicals to realize the oxidative degradation of organic matter in sewage, but any of the above two methods is a single action, and its hydroxyl radical generation rate is low, and the removal rate of organic matter is still low ,higher cost

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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] A method for heterogeneous catalytic oxidation treatment of sewage, comprising the steps of:

[0021] (1) The sewage flows through the hydraulic cavitation device, and the hydraulic cavitation effect occurs, so that the sewage is in a cavitation state;

[0022] (2) Make ozone contact with the sewage under the cavitation state;

[0023] (3) Make the sewage under the state of ozone and cavitation and the solid-phase catalyst TiO 2 and γAL 2 o 3 touch.

[0024] In order to achieve the above method, the figure 1 The shown sewage treatment equipment comprises an ozone generating device 101, a backflow pump 102, a pressure gauge 103, a flow meter 104, a hydraulic cavitation device 105, a flow meter 106, a pressure gauge 107, a vertical tank 108, and a reaction tank 109, wherein the The hydraulic cavitation device 105 is provided with an ozone inlet pipe 4, and...

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Abstract

The invention relates to a multiphase catalytic oxidation sewage treatment method, which belongs to the environmental protection technical field. The method comprises the following steps: 1) sewage flows through a hydraulic cavitation apparatus, and the hydraulic cavitation effect is generated, thereby the sewage is in a cavitation state; 2) ozone is contacted to sewage; 3) ozone, sewage and a solid phase catalyst TiO2 are contacted with gamma AL2O3. The multiphase catalytic oxidation sewage treatment method is characterized in that hydroxyl radical generated by ozone in the hydraulic cavitation process and the hydroxyl radical generated by ozone under the catalytic effect of TiO2 and the gamma AL2O3 cooperatively act in the sewage for processing, thereby the oxidation and degradation efficiency of an organic matter can be substantially enhanced.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and relates to a sewage treatment method, in particular to a heterogeneous catalytic oxidation sewage treatment method. Background technique [0002] The sources of organic sewage and wastewater are quite extensive. Organic sewage and wastewater can cause a series of water pollution and threaten human health. Especially, high-concentration organic sewage that is difficult to degrade has great harm to the environment. At present, the treatment methods of organic wastewater are mainly biological methods, physical and chemical methods, or a combination of biological and physical and chemical methods, but in biological treatment, the degradation of organic matter is not complete, and it is not suitable for organic wastewater with poor biodegradability; There are disadvantages such as small application range or high processing cost, while the combination process has disadvantages such...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F1/78
Inventor 王晓东李大升李直刘雷肖玉峰
Owner UNIV OF JINAN
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