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Microelectrolysis based advanced oxidation water treatment system and method

A treatment system and treatment method technology, applied in the field of advanced oxidized water treatment system, can solve the problems of easy passivation of the surface, limited duration of iron-carbon micro-electrolysis, and insignificant effect of micro-electrolysis reaction, so as to reduce the addition amount and enhance the purification. effective effect

Active Publication Date: 2018-08-24
张家港市清泉水处理有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are Fenton treatment and micro-electrolysis treatment in the advanced oxidation water treatment methods, there are also technical studies to combine the two to treat sewage, but the combination of the two only exists in the laboratory stage and has not been fully promoted. The problem is: 1. The duration of iron-carbon micro-electrolysis is limited, and the surface of iron-carbon fillers is easily passivated after a period of reaction, so the reaction effect of micro-electrolysis is not obvious, and the sewage treatment effect will decline seriously after a period of time; 2. The replacement of carbon micro-electrolysis is difficult; 3. Fenton and micro-electrolysis reactions still exist in the laboratory stage. In the actual sewage treatment process, Fenton and micro-electrolysis reactions have not been fully integrated into the traditional sewage treatment process.

Method used

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  • Microelectrolysis based advanced oxidation water treatment system and method
  • Microelectrolysis based advanced oxidation water treatment system and method
  • Microelectrolysis based advanced oxidation water treatment system and method

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Effect test

Embodiment 1

[0078] Such as Figure 1 to Figure 5 As shown, an advanced oxidation water treatment system based on micro-electrolysis, including

[0079] Regulating pond, described regulating pond is provided with water inlet main pipe and water outlet main pipe; Water inlet main pipe can be used to connect the sewage that certain enterprise discharges, and this sewage treatment system can be used for treating the sewage of COD concentration 8000-12000mg / L.

[0080] Alkali-adding pool, the water inlet of the alkali-adding pool is connected with the outlet main pipe of the regulating pool, and the sodium hydroxide adding pipe is also arranged on the described alkali-adding pool; the sodium hydroxide adding pipe is used to connect the sodium hydroxide adding system, through A flow meter is set to determine the amount of alkali added in the alkali adding pool, and of course, a pH value sensor is also arranged in the alkali adding pool to detect the pH value.

[0081] A coagulation tank, the w...

Embodiment 2

[0096] A kind of advanced oxidation water treatment method based on micro-electrolysis, this treatment method is to use above-mentioned treatment system, it comprises the following steps:

[0097] S1. Send the sewage of a certain enterprise into the adjustment tank for deployment, so that the COD concentration of the water in the adjustment tank is 8000mg / L, the ammonia nitrogen concentration is 300mg / L, the total phosphorus is 50mg / L, and the pH=4;

[0098] S2, the prepared sewage is sent into the alkali-adding pool, and sodium hydroxide is added into the alkali-adding pool to make the pH value in the sewage reach 8.5;

[0099] S3, the sewage in the alkali-adding tank flows into the flocculation tank, and adds 10% mass ratio of PAC solution and 0.1% mass ratio of PAM solution to the flocculation tank, wherein the addition of PAC is 100ppm, and the addition of PAM is 1ppm

[0100] S4. Discharging the sewage in the flocculation tank into a settling tank for a sedimentation, sendi...

Embodiment 3

[0110] A kind of advanced oxidation water treatment method based on micro-electrolysis, this treatment method is to use above-mentioned treatment system, it comprises the following steps:

[0111] S1. Send the sewage of a certain enterprise into the adjustment pool for deployment, so that the COD concentration of the water in the adjustment pool is 12000mg / L, the ammonia nitrogen concentration is 500mg / L, the total phosphorus is 100mg / L, and PH=5;

[0112] S2, the prepared sewage is sent into the alkali-adding pool, and sodium hydroxide is added to the alkali-adding pool to make the pH value in the sewage reach 10;

[0113] S3, the sewage in the alkali-adding tank flows into the flocculation tank, and adds 10% mass ratio of PAC solution and 0.1% mass ratio of PAM solution to the flocculation tank, wherein the addition of PAC is 400ppm, and the addition of PAM is 5ppm

[0114] S4. Discharging the sewage in the flocculation tank into a settling tank for a sedimentation, sending ...

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Abstract

The invention discloses a microelectrolysis based advanced oxidation water treatment system and method. According to the water treatment system and method, iron-carbon micro-electrolysis and a fentonreaction are combined and fused into other sewage treatment technologies, iron / carbon granules are replaced conveniently, passivation of the iron / carbon granules is reduced, and then the sewage treatment effect is better. High-concentration COD sewage can be treated, and sewage containing organic matter difficult to biodegrade can also be treated.

Description

technical field [0001] The invention relates to an advanced oxidation water treatment system based on micro-electrolysis, and also relates to an advanced oxidation treatment method combining iron-carbon micro-electrolysis and Fenton reaction. Background technique [0002] There are many kinds of sewage treatment methods at present, such as activated sludge method, biofilm method, etc. to treat sewage, but when the COD concentration of sewage is greater than 10,000 mg / L, and the sewage contains some difficult biodegradable substances, such as A-K sugar and diketene; [0003] A-K sugar [0004] Monomer molecular weight: 201.2422 [0005] Class of substance: Sweetener [0006] It is easily soluble in water, with a solubility of 27 grams at 20°C. It is stable against light and heat (capable of high temperature of 225°C), and has a wide range of pH values ​​(pH=3-7). [0007] Diketene; [0008] Also known as: diketene; 3-hydroxybutenoic acid-β-lactone; Diketen [0009] Molec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/30C02F101/34
CPCC02F9/00C02F1/04C02F1/725C02F1/66C02F1/56C02F1/46104C02F1/463C02F1/5236C02F3/30C02F2001/007C02F2101/34C02F2101/30Y02W10/10
Inventor 杨智迪陈胜施达
Owner 张家港市清泉水处理有限公司
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