Micro-nano active oxygen treatment method of sewage

Abstract

The invention discloses a micro-nano active oxygen treatment method of sewage, comprising the following steps: a, physically treating: settling the sewage to remove sand; b, separating: carrying out micro-nano bubble oxidization separation on the sewage, wherein the diameters of the bubbles are smaller than 50 microns; c, biologically treating: carrying out nitrification and denitrification reaction on the sewage which is subjected to the micro-nano bubble treatment and flows into a reaction pool with bionic biological carrier; and d, discharging: discharging under the conditions that the COD (chemical oxygen demand) of the sewage reaches 98%. The micro-nano active oxygen treatment method of the sewage thoroughly eliminates all organic pollution sources in the sewage and realizes the aim of purifying and reducing the sewage.

Description

technical field

[0001] The invention relates to a micro-nano active oxygen treatment method for sewage, which belongs to the field of sewage treatment and is applicable to sewage treatment in cities or villages. Background technique

[0002] The total annual urban sewage discharge in my country has reached 73.5 billion tons. Nearly 60% of cities have no sewage treatment plants, and rural areas generally have no sewage treatment facilities. Severely oversaturated, rivers and lakes polluted by sewage abound, and water pollution has reached a critical state.

[0003] The current sewage treatment technology in my country is seriously backward. Most of the sewage treatment technologies used in my country are obsolete technologies that have been eliminated in the world. Subsequent issues and comprehensive environmental management issues have not been considered comprehensively, resulting in sewage sediment problems, frequent outbreaks of water pollution, etc., and the country's la...

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