Micro-nano active oxygen treatment method of sewage

A treatment method, micro-nano technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, aerobic and anaerobic process treatment, etc., can solve the problem of the disappearance of self-purification ability of water areas, inability to directly oxidize and decompose, pollution, etc. problems, to achieve the effect of eliminating follow-up pollution and eliminating organic pollution sources

Active Publication Date: 2012-10-03
CHENGDU BRANCH TIBET GUOCE ENVIRONMENTAL PROTECTION TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, this technology still has the following disadvantages: when the total amount of pollutants entering the water exceeds the self-purification capacity of the dissolved oxygen content in the water, the dissolved oxygen content in the water will be consumed after oxidative decomposition of some pollutants, and the remaining pollutants will be dissolved, The two forms of suspension combine with water molecules to form a huge colloidal polymeric molecular group. In this colloidal polymeric molecular group, all water molecules are closely combined with pollutants through chemical bond connection and charged particle electrical adsorption. This combination As a result, the external chemical bonds and electrical adsorption gaps of water molecules are occupied by other pollutant molecules and lose all activity and the ability to combine with other substances. Even if forced aeration and oxygen are introduced, it cannot be directly oxidized and decomposed.
This huge colloidal polymer cluster permeates the entire water area, causing the entire water area to lose all its dissolved oxygen capacity, and the self-purification ability of the water area completely disappears.
The use of chemical agents can only temporarily remove the connection between some pollutants and the water, but these agents form a new connection with the water, and also do not create a space for oxygen to dissolve in the water, so such waters can only become more and more polluted. Seriously, this is the result of using chemical means to control and pollute more

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Embodiment 1

[0033] A method for treating sewage with micro-nano active oxygen, comprising the following steps:

[0034] a. Physicochemical: Sedimentation and desanding treatment of sewage;

[0035] b. Separation: The sewage is oxidized and separated by micro-nano bubbles, and the diameter of the bubbles is less than 50 microns;

[0036] c. Biological treatment: the sewage treated by micro-nano bubbles flows into the reaction tank with bionic biological carrier for nitrification and denitrification, anaerobic and aerobic reactions;

[0037] d. Discharge: After biological treatment, the COD removal rate of sewage reaches over 98% before discharge.

[0038] In the step a, a simple grid grit settling section is built, and the sewage is naturally collected through the grit settling section for natural sedimentation treatment.

[0039] In the step b, micro-nano bubbles are added to the overflow water of the sand settling section to carry out oxidation and separation reaction.

[0040] In the...

Embodiment 2

[0048] The present invention is described in detail below:

[0049] The process flow is: Sewage -----> Simple grid grit settling -----> High-energy oxidation separation of micro-nano bubbles -----> Bionic biological carrier purification advanced treatment -----> Discharge or reuse .

[0050] The physical and chemical step is to select the natural terrain (or use ditches) to build a simple grid grit settling section, and the sewage is naturally collected through the grit settling section for natural sedimentation treatment.

[0051] The process flow of high-energy oxidation separation of micro-nano bubbles is: overflow water in the sand setting section-high-energy oxidation separation reaction of micro-nano bubbles

[0052] The technological process of the biological step is: biomimetic biological carrier + micro-nano bubble treatment - discharge or agricultural irrigation reuse.

[0053] The principle of micro-nano bubble purification sewage:

[0054] The micro-nano-bubble ...

Embodiment 3

[0060] The present embodiment describes in detail the multi-magnetic field whirling micro-fine oxygen bubble generator used in the present invention, but is not limited to this generator, as long as the diameter of more than 95% of the bubbles in the input bubbles is less than 50 microns, the minimum diameter can reach 10 microns. Nano or so will do.

[0061] The multi-magnetic field whirl tiny oxygen bubble generator includes a high-pressure air-water mixing chamber 1 and a rotating compression chamber 2. The high-pressure air-water mixing chamber 1 is cylindrical in shape, with one end closed and the other end communicating with the rotating compression chamber 2. The tangent of the water mixing chamber 1 is provided with a pressurized air-water inlet 3, and the inner wall of the rotary compression chamber 2 is provided with a magnetic sheet layer 4, such as a magnet layer or a magnetic steel layer. One end of the rotary compression chamber 2 communicates with the high-pressu...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/34
Inventor 张培君幸川
Owner CHENGDU BRANCH TIBET GUOCE ENVIRONMENTAL PROTECTION TECH
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