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Method for treating wastewater by virtue of multi-stage catalytic oxidation, micro electrolysis and multi-effect evaporation

A catalytic oxidation and micro-electrolysis technology, applied in chemical instruments and methods, multi-stage water/sewage treatment, anaerobic digestion treatment, etc., can solve problems such as limiting the popularization and application of Fenton method, consuming manpower and material resources, and increasing labor intensity. , to achieve good coagulation effect, low investment cost, convenient operation and maintenance.

Inactive Publication Date: 2015-04-08
巨野县鑫源化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] In the traditional treatment process of high-salt, high-concentration and high-COD wastewater, especially for the treatment of difficult wastewater such as rubber accelerators M, DM, NS, and CZ, the following two methods are commonly used: one is to simply use the Fenton method to treat wastewater, The processing cost of this process is high and produces more iron sludge, which limits the popularization and application of Fenton's method; the second is Fenton's enhanced iron filings internal electrolysis process. The disadvantage of this process is: iron filings run in the container After about 3 months, there will be agglomeration and hardening, and it needs to be replaced again, which consumes a lot of manpower and material resources, increases labor intensity, and is not suitable for promotion

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  • Method for treating wastewater by virtue of multi-stage catalytic oxidation, micro electrolysis and multi-effect evaporation

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The method for treating waste water by the described multistage catalytic oxidation plus micro-electrolysis method comprises the following steps:

[0036] (1) Firstly, filter the raw water flowing into the adjustment tank with three-stage bag filter, and then use the gas explosion method for 30 minutes to carry out the pretreatment process.

[0037] (2) Use hydrochloric acid to adjust the PH value of the raw water treated in step (1) to 3, and then enter the fiber ball filter for 30 minutes to degas and acidify to filter, and filter out the product of acid precipitation; the addition of hydrochloric acid is the total mass of raw water 0.3 ‰.

[0038] (3) The waste water filtered in step (2) enters the reaction tower equipped with micro-electrolysis fillers in the way of low inflow and high outflow, and uses the micro-electrolysis fillers to generate a "primary battery" effect to treat the wastewater.

[0039] (4) Add hydrogen peroxide to the waste water treated by micr...

Embodiment 2

[0045] The method for treating waste water by the described multistage catalytic oxidation plus micro-electrolysis method comprises the following steps:

[0046] (1) Firstly, filter the raw water flowing into the adjustment tank with three-stage bag filter, and then use the gas explosion method for 60 minutes to carry out the pretreatment process.

[0047] (2) Use hydrochloric acid to adjust the PH value of the raw water treated in step (1) to 4, explode the acid for 35 minutes and enter the fiber ball filter for filtration, and filter out the product of acid precipitation; the addition of hydrochloric acid is the total mass of raw water 0.3 ‰.

[0048] (3) The waste water filtered in step (2) enters the reaction tower equipped with micro-electrolysis fillers in the way of low inflow and high outflow, and uses the micro-electrolysis fillers to generate a "primary battery" effect to treat the wastewater.

[0049] (4) Add hydrogen peroxide to the waste water treated by micro-el...

Embodiment 3

[0055] The method for treating waste water by the described multistage catalytic oxidation plus micro-electrolysis method comprises the following steps:

[0056] (1) Firstly, the raw water flowing into the regulating tank is filtered by three-stage bag, and then the pretreatment process is carried out by using the explosion method for 90 minutes.

[0057] (2) Use hydrochloric acid to adjust the PH value of the raw water treated in step (1) to 3, degas the acid and analyze it for 40 minutes and enter the fiber ball filter for filtration, and filter out the product of acid precipitation; the addition of hydrochloric acid is the total mass of raw water 0.3 ‰.

[0058] (3) The waste water filtered in step (2) enters the reaction tower equipped with micro-electrolysis fillers in the way of low inflow and high outflow, and uses the micro-electrolysis fillers to generate a "primary battery" effect to treat the wastewater.

[0059] (4) Add hydrogen peroxide to the wastewater treated ...

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Abstract

The invention relates to treatment of organic-substance-containing wastewater having high salt content and particularly relates to a method for treating wastewater by virtue of multi-stage catalytic oxidation, micro electrolysis and multi-effect evaporation. According to the method, by reasonably utilizing steam and heat generated by an evaporator, better salt removal effect is achieved so that the subsequent biological treatment can be more efficient.

Description

technical field [0001] The invention relates to the treatment of waste water with high salt content and organic matter, in particular to a method for treating waste water with multi-stage catalytic oxidation, micro-electrolysis and multi-effect evaporation. Background technique [0002] In the traditional treatment process of high-salt, high-concentration and high-COD wastewater, especially for the treatment of difficult wastewater such as rubber accelerators M, DM, NS, and CZ, the following two methods are commonly used: one is to simply use the Fenton method to treat wastewater, The processing cost of this process is high and produces more iron sludge, which limits the popularization and application of Fenton's method; the second is Fenton's enhanced iron filings internal electrolysis process. The disadvantage of this process is: iron filings run in the container Caking and hardening will occur after about 3 months, and it needs to be replaced again, which consumes a lot o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/04C02F1/24C02F1/46176C02F1/5236C02F1/56C02F1/66C02F1/722C02F1/725C02F3/28C02F9/00C02F2101/30
Inventor 金宗亮金立刚张学军
Owner 巨野县鑫源化工有限公司
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