Method for treating oily wastewater through ozone and electrochemical synergistic oxidization

An ozone oxidation and electrochemical technology, applied in the field of water treatment, can solve problems such as low treatment capacity

Inactive Publication Date: 2013-05-08
XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to solve the problem of simply utilizing O 3 In order to solve the problem of low treatment capacity when oxidizing oily wastewater, a method for treating oily wastewater with ozone and electrochemical synergistic oxidation is provided. This method uses ozone oxidation and introduces electrochemical oxidation to allow ozone oxidation and electrochemical oxidation to act synergistically for wastewater treatment. The processing device involved in the method is composed of a box body, a water inlet, a power line inlet, a pressure relief port, a discharge port, a water outlet, and an ozone inlet. Oxidize or even mineralize the pollutants in the water, no need to add other chemicals

Method used

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  • Method for treating oily wastewater through ozone and electrochemical synergistic oxidization
  • Method for treating oily wastewater through ozone and electrochemical synergistic oxidization

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Embodiment 1

[0025] First of all, the processing device is made: a box body 1 of 400×400×400mm square is made of glass fiber reinforced plastic material, and a water inlet 2, a power line inlet 3 and a pressure relief port 4 are respectively arranged on the top of the box body 1, and a discharge port is provided at the bottom of the box body 1. The feed port 9, the two sides of the box body 1 are respectively provided with a water outlet 8 and an ozone air inlet 10, and the electrode plates 5 arranged equally are fixed by the nuts on the support column 6 in the box body 1, and the distance between the electrode plates 5 is 10mm, adjusted by the nut on the support column 6, the power line in the electrode plate 5 is a copper wire with an insulating layer, connected to the electrochemical power supply 11 through the power line inlet 3, and the power line in the electrode plate 5 is staggered up and down Connect the positive pole and the negative pole of the electrochemical power supply 11 in ...

Embodiment 2

[0028] Firstly, the processing device is made: a cylindrical box 1 with Φ=500 mm and a height of H=600 mm is made of glass fiber reinforced plastic material, and the top of the box 1 is respectively provided with a water inlet 2, a power line inlet 3 and a pressure relief port 4, The bottom of the box body 1 is provided with a discharge port 9, and the two sides of the box body 1 are respectively provided with a water outlet 8 and an ozone air inlet 10. In the box body 1, the evenly arranged electrode plates 5 are fixed by nuts on the support column 6, The distance between the electrode plates 5 is 50mm, which is adjusted by the nuts on the support columns 6. The power line in the electrode plates 5 is a copper wire with an insulating layer, which is connected to the electrochemical power supply 11 through the power line inlet 3, and the electrode plates 5 The power line in the battery is connected to the positive pole and the negative pole of the electrochemical power supply 1...

Embodiment 3

[0031] First of all, the processing device is made: a box body 1 of 200×200×200mm square is made of glass fiber reinforced plastic material, and a water inlet 2, a power line inlet 3 and a pressure relief port 4 are respectively arranged on the top of the box body 1, and a discharge port is provided at the bottom of the box body 1. The feed port 9, the two sides of the box body 1 are respectively provided with a water outlet 8 and an ozone air inlet 10, and the electrode plates 5 arranged equally are fixed by the nuts on the support column 6 in the box body 1, and the distance between the electrode plates 5 is It is 100mm, adjusted by the nut on the supporting column 6, the power line in the electrode plate 5 is a copper wire with an insulation layer, connected to the electrochemical power supply 11 through the power line inlet 3, and the power line in the electrode plate 5 is staggered up and down Connect the positive and negative poles of the electrochemical power supply 11 i...

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Abstract

The invention relates to a method for treating oily wastewater through ozone and electrochemical synergistic oxidization. According to the method, wastewater treatment is carried out through the synergistic action of ozone oxidation and electrochemical oxidation by utilizing the ozone oxidation and introducing the electrochemical oxidation. A treatment device used in the method comprises a box body, a water inlet, a power line entrance, a pressure relief opening, a discharge opening, a water outlet and an ozone inlet. Electrochemical oxidation treatment is as follows: electrical energy is directly converted into chemical energy to carry out oxidation treatment and even carry out mineralization treatment on pollutants contained in a water body, and other medicines do not need to be added. The synergistic method disclosed by the invention overcomes the defect of low oxidization capacity during only O3 oxidization, thereby greatly enhancing the oxidization capacity; and the synergistic method disclosed by the invention has the advantages of wide adaptability, no secondary pollution, quick reaction and simple equipment and easiness for operation. The COD of the oily wastewater treated through the method achieves 68 mg / L, the COD removal rate reaches 85%, and the treated water is clear and transparent and meets the requirement for discharge or recycling.

Description

technical field [0001] The present invention relates to a kind of ozone (O 3 ) and electrochemical synergistic oxidation oily wastewater treatment method, which belongs to the technical field of water treatment. Background technique [0002] Oily operation waste liquid contains a variety of polluting components, if discharged directly, it will cause serious pollution to the environment. At present, the problem of lack of water resources is becoming more and more serious, so it is the current development trend to treat and reinject oily wastewater. In order to make the industrial wastewater meet the standard for reinjection and utilization, it is necessary to remove high molecular polymers, emulsified oil, and high-concentration inorganic salts in the wastewater. [0003] Through the coagulation process, most of the polymers and emulsified oil in the oily wastewater can be removed, but to meet the standard of reinjection water, advanced oxidation process must be used for ad...

Claims

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Application Information

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IPC IPC(8): C02F1/46C02F1/78
Inventor 卞卫国刘向阳田长彦
Owner XINJIANG INST OF ECOLOGY & GEOGRAPHY CHINESE ACAD OF SCI
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