Coking wastewater treatment process

A treatment process and technology for coking wastewater, applied in water/sewage treatment, flotation water/sewage treatment, multi-stage water/sewage treatment, etc., can solve the problems of high treatment cost, insufficient coking wastewater compliance, and poor treatment effect , to achieve the effect of reducing operating costs, low comprehensive operating costs, and reducing construction land

Pending Publication Date: 2022-01-11
詹长贵
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the technical problems existing in the prior art about the insufficient level of coking wastewater treatment in the prior art, poor treatment effect and high treatment cost, the purpose of the present invention is to provide a coking wastewater treatment process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Adsorption reaction agent includes reaction agent A, oxidizing agent, adsorbent and pH regulator. Reaction agent A includes ferrous sulfate heptahydrate, polyaluminum chloride, copper sulfate, sodium sulfate and red dye.

[0032] The mass concentration of adding ferrous sulfate heptahydrate is 2000mg / L, the mass concentration of adding polyaluminum chloride is 8mg / L, the mass concentration of adding copper sulfate is 2mg / L, the mass concentration of adding star powder is 25mg / L and adding The mass concentration of red dye is 1mg / L.

[0033] Reaction reagent A includes ferrous sulfate heptahydrate, polyaluminum chloride, copper sulfate, sodium sulfate and red dye in a mass ratio of 1:1:1:1.

[0034] In the reaction agent A, the purity of ferrous sulfate hydrate is 95wt%, the purity of polyaluminum chloride is 99wt%, the purity of copper sulfate is 99wt%, the purity of sodium sulfate is 99wt% and the purity of red dye is 99wt% .

[0035] The oxidizing agent is hydrogen...

Embodiment 2

[0042] Adsorption reaction agent includes reaction agent A, oxidizing agent, adsorbent and pH regulator. Reaction agent A includes ferrous sulfate heptahydrate, polyaluminum chloride, copper sulfate, sodium sulfate and red dye.

[0043] The mass concentration of adding ferrous sulfate heptahydrate is 2000mg / L, the mass concentration of adding polyaluminum chloride is 8mg / L, the mass concentration of adding copper sulfate is 2mg / L, the mass concentration of adding star powder is 25mg / L and adding The mass concentration of red dye is 1mg / L.

[0044] Reaction reagent A includes ferrous sulfate heptahydrate, polyaluminum chloride, copper sulfate, sodium sulfate and red dye in a mass ratio of 3:1:1:3.

[0045]In the reaction agent A, the purity of ferrous sulfate hydrate is 95wt%, the purity of polyaluminum chloride is 99wt%, the purity of copper sulfate is 99wt%, the purity of sodium sulfate is 99wt% and the purity of red dye is 99wt% .

[0046] The oxidizing agent is hydrogen ...

Embodiment 3

[0053] Adsorption reaction agent includes reaction agent A, oxidizing agent, adsorbent and pH regulator. Reaction agent A includes ferrous sulfate heptahydrate, polyaluminum chloride, copper sulfate, sodium sulfate and red dye.

[0054] The mass concentration of adding ferrous sulfate heptahydrate is 2400mg / L, the mass concentration of adding polyaluminum chloride is 12.5mg / L, the mass concentration of adding copper sulfate is 4mg / L, the mass concentration of adding star powder is 30mg / L and The mass concentration of adding red dye is 2mg / L.

[0055] Reaction reagent A includes ferrous sulfate heptahydrate, polyaluminum chloride, copper sulfate, sodium sulfate and red dye in a mass ratio of 3:1:3:3.

[0056] In the reaction agent A, the purity of ferrous sulfate hydrate is 95wt%, the purity of polyaluminum chloride is 99wt%, the purity of copper sulfate is 99wt%, the purity of sodium sulfate is 99wt% and the purity of red dye is 99wt% .

[0057] The oxidizing agent is hydro...

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Abstract

The invention belongs to the technical field of wastewater treatment, and discloses a coking wastewater treatment process. According to the primary adsorption treatment reaction, a reaction agent is added to serve as an oxidizing agent, organic pollutants in the wastewater are oxidized to generate an intermediate product rich in carboxyl, and the intermediate product rich in carboxyl is efficiently adsorbed and removed by means of nascent oxyhydroxide generated in the oxidation reaction process. The reaction time is not less than 30 minutes, treatment is performed by adopting stirring or aeration, and precipitation can be performed after standard values of CODcr less than or equal to 80 mg / L, ammonia nitrogen less than or equal to 10 mg / L and cyanide less than or equal to 0.2 mg / L are detected. The medicament is combined with stirring or aeration, so that the adsorption time of various pollutants is prolonged, and the adsorption capacity is improved. An adsorption reaction agent is added for reaction, a large number of groups are generated, the specific surface area of the groups is increased, various organic pollutant monomers are adsorbed to the maximum extent, and therefore the removal efficiency is maximized.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a coking wastewater treatment process. Background technique [0002] The coking plant is one of the important components of modern iron and steel enterprises. It mainly produces metallurgical coke for blast furnace ironmaking, and recovers ammonia, benzene, coal tar pitch, ammonium sulfate, anthracene oil and other chemical products from coke oven gas. The purified coke oven gas can be used as fuel for iron and steel enterprises, and can also be used as raw material for the production of synthetic ammonia in fertilizer plants. The water supply and drainage of the coking plant is an important link to ensure the production of chemical products, and the wastewater discharged from the recovery workshop, tar workshop, crude benzene separation, intercooling workshop, and refined benzene workshop of the coking plant contains a large amount of organic and inorgan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F101/10C02F101/16C02F101/34
CPCC02F9/00C02F1/722C02F1/24C02F1/40C02F1/283C02F1/00C02F2101/34C02F2101/105C02F2101/101C02F2101/16
Inventor 詹长贵刘畅丁一泓
Owner 詹长贵
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