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Sewage treatment method and sewage treatment device with middle-arranged ozone reinforced bacteria filter

A technology of sewage treatment device and biological filter, which is applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. problems, to achieve the effect of improving the oxidation effect, saving energy consumption, and ensuring the quality of the effluent.

Inactive Publication Date: 2014-02-05
CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For industrial wastewater that is generally easy to treat, these technologies have a good advanced treatment effect; but for difficult-to-treat industrial wastewater containing refractory biodegradable and dissolved organic matter, these technologies cannot meet the requirements of the treatment target, or the operating costs are expensive. Difficult to apply in engineering practice

Method used

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  • Sewage treatment method and sewage treatment device with middle-arranged ozone reinforced bacteria filter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] root tree figure 1 As shown, for the advanced treatment of industrial wastewater, the pre-aerated biological filter adopts volcanic rock filter material, and the residence time is 1h; the residence time of the ozone contact tank is 0.5h, and the ozone dosage is 10mg / L. Set up ultraviolet facilities to generate ultraviolet rays, and add powdered activated carbon to the water inlet pipe of the ozone contact pool, with a dosage of 20mg / L; the rear biofilter uses volcanic rock filter material, and the residence time is 1h.

Embodiment 2

[0028] root tree figure 1 As shown, for the advanced treatment of industrial wastewater containing refractory biodegradable and refractory organic pollutants, the biological aerated filter adopts volcanic rock filter material, and the residence time is 2h; the residence time of the ozone contact tank is 1.5h, and the ozone dosage is 40mg / L. Ultraviolet rays are used as catalysts, and ultraviolet facilities are installed in the ozone contact tank to generate ultraviolet rays. Powdered activated carbon is added to the water inlet pipe of the ozone contact tank, and the dosage is 50mg / L; the rear biofilter uses volcanic rock filter material, and the residence time is 2h.

Embodiment 3

[0030] root tree figure 1 As shown, for the advanced treatment of industrial wastewater, the biological aerated filter adopts volcanic rock filter material, and the residence time is 1.5h; the residence time of the ozone contact tank is 1h, and the dosage of ozone is 20mg / L. The facility generates ultraviolet rays, and powdered activated carbon is added to the water inlet pipe of the ozone contact pool, with a dosage of 35mg / L; the rear biofilter uses volcanic rock filter material, and the residence time is 1.5h.

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Abstract

The invention discloses a sewage treatment device with a middle-arranged ozone reinforced bacteria filter. The sewage treatment device comprises a front-arranged biological aerated filter, an ozone contact pond and a rear-arranged biological filter which are connected together through pipelines. The sewage treatment device has the advantages that a good treatment effect on sewage is achieved, the ozone addition amount can be reduced, the oxidation effect is improved, the oxidation capability and the sewage removal effect are improved as a catalyst is added into the ozone contact pond, the contact time for removing dirties inside the ozone contact pond in an absorption manner is sufficient, and the absorption effect is good. In addition, powder activated carbon has a certain catalysis action on ozone oxidation, the oxidation effect is improved, the rear-arranged biological filter does not need aeration, the energy consumption is saved, the biological action of the biological filter can be prompted by the powder activated carbon which absorbs organic pollutant substances, and the biological treatment effect is improved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment method and device for a central ozone enhanced biological filter. Background technique [0002] With the development of industrial production, the amount of industrial wastewater is increasing, and the water quality is becoming more and more complicated, which has caused great pollution to the water environment and endangered people's health. With the prosperity of the social economy and the improvement of people's living standards, the national requirements for energy conservation and emission reduction continue to increase, and the requirements for sewage treatment effluent are becoming more and more stringent. Conventional processes can no longer meet the treatment requirements of industrial wastewater. With the new "industrial water With the successive implementation of Pollutant Discharge Standards, the advanced treatment of industrial wastewater ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 李树苑陈才高付乐刘海燕
Owner CENT & SOUTHERN CHINA MUNICIPAL ENG DESIGN & RES INST CO LTD
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