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A device and method for advanced treatment of tertiary effluent of sewage

A technology for advanced treatment and sewage, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of high cost of hydroxyl radicals, and improve the quality and effect of sewage effluent. Obvious and avoid the effect of secondary pollution

Inactive Publication Date: 2016-02-17
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Abstract
  • Description
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Problems solved by technology

[0005] Common methods to generate hydroxyl radicals include Fenton reaction, ozone, water contact, etc., but the cost of hydroxyl radicals is relatively high

Method used

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  • A device and method for advanced treatment of tertiary effluent of sewage

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Embodiment Construction

[0043] The invention provides a device for advanced treatment of tertiary effluent of sewage, which utilizes the strong oxidation of hydroxyl radicals to deeply remove pollutants (such as chemical impurities such as organic matters, microorganisms and inorganic matters) in sewage.

[0044] The invention also discloses a method for advanced treatment of sewage by using the combination device.

[0045] Describe in detail below in conjunction with accompanying drawing. It should be noted that the left, right, up, down, etc. mentioned in the following descriptions are all based on the directions shown in the drawings.

[0046] see figure 1 , the device for the advanced treatment of sewage three-stage effluent provided by the present invention, its main structure includes:

[0047] A coagulation tank 1, the upper end of which is equipped with a dosing device 0 for coagulation treatment of the biologically treated sewage. The coagulant is polyacrylamide, and the dosage is 5 mg / L. ...

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Abstract

The invention relates to a sewage three-level effluent advanced treatment device. The device mainly comprises a coagulating basin, wherein the upper end of the coagulating basin is connected with a chemical dosing device, the water outlet of the coagulating basin is connected with a surface turbulence filtering device, the water outlet of the surface turbulence filtering device is connected with a photocatalytic degradation reaction device, the water outlet of the photocatalytic degradation reaction device is connected with a secondary nanometer aeration advanced oxidation device, and the water outlet of the secondary nanometer aeration advanced oxidation device is connected with an ultrafiltration device. The invention also discloses a sewage three-level effluent advanced treatment method.

Description

technical field [0001] The invention relates to a device for advanced treatment of three-stage effluent of sewage. [0002] The invention also relates to a method for advanced treatment of tertiary effluent of sewage by using the above-mentioned device. Background technique [0003] The tertiary treatment of sewage is the advanced treatment of sewage. At present, in my country's sewage treatment plants, after secondary treatment, the sewage still contains phosphorus, nitrogen and difficult-to-biodegrade organic matter, minerals, pathogens, etc. At this time, activated carbon is often used Adsorption method or reverse osmosis method removes remaining pollutants in water, and ozone or chlorine disinfection is used to kill bacteria and viruses, and then directly reused as reclaimed water, but ozone and chlorine have high operating costs, and due to the nature of the gas, it is easy to cause waste and Secondary pollution, so it is necessary to find a low-cost, more practical and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08
Inventor 席北斗王雷李英军张列宇苏婧余红夏训峰李曹乐
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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