Sewage three-level effluent advanced treatment device and treatment method

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 ...

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