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Concentrated treatment method for industrial production wastewater of unsymmetrical dimethylhydrazine

A treatment method and technology of unsymmetrical dimethyl hydrazine, applied in multi-stage water treatment, water/sewage treatment, water/sludge/sewage treatment, etc.

Inactive Publication Date: 2018-10-12
青海爱迪旺环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no concentration treatment process specially used for unsymmetrical dimethylhydrazine industrial production wastewater

Method used

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  • Concentrated treatment method for industrial production wastewater of unsymmetrical dimethylhydrazine
  • Concentrated treatment method for industrial production wastewater of unsymmetrical dimethylhydrazine
  • Concentrated treatment method for industrial production wastewater of unsymmetrical dimethylhydrazine

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Embodiment 1

[0031] This embodiment provides a kind of concentrated treatment method of unsymmetrical dimethylhydrazine industrial production waste water, and this concentrated treatment method is the industrial production waste water of the unsymmetrical dimethylhydrazine through desalination and dealkalization treatment in buffer tank 1 (salt content is lower than 0.5%, the alkali content is less than 0.5%, and the temperature is less than 30°C) is transported to the first-stage high-pressure pump 3 by the delivery pump 2 for pressurization, and then transported to the first-stage reverse osmosis membrane system 4 for the first-stage reverse osmosis treatment after pressurization. After the primary reverse osmosis treatment, the primary clear liquid and the primary concentrated liquid are obtained, the primary clear liquid is transported to the primary clear liquid storage tank 5, and the primary concentrated liquid is transported to the secondary reverse osmosis membrane through the secon...

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Abstract

The invention discloses a concentrated treatment method for industrial production wastewater of unsymmetrical dimethylhydrazine, and belongs to the technical field of industrial production wastewatertreatment. The method comprises the following steps: transferring demineralized and dealkalized industrial production wastewater of the unsymmetrical dimethylhydrazine through a transfer pump to a first-stage high-pressure pump for pressurizing, transferring the pressurized demineralized and dealkalized industrial production wastewater of the unsymmetrical dimethylhydrazine to a first-stage reverse osmosis membrane system for first-stage reverse osmosis treatment to obtain first-stage clear liquid and first-stage concentrated liquid after the completion of the first-stage reverse osmosis treatment, transferring the first-stage clear liquid to a first-stage clear liquid storage tank, transferring the first-stage concentrated liquid by a second-stage high-pressure pump to a second-stage reverse osmosis membrane system for second-stage reverse osmosis treatment to obtain secondary clear liquid and secondary concentrated liquid after the completion of the second-stage reverse osmosis treatment, transferring the second-stage clear liquid to a buffer tank, mixing the second-stage clear liquid with the demineralized dealkalized and unconcentrated industrial production wastewater of the unsymmetrical dimethylhydrazine, repeating the above steps, and transferring the secondary concentrated liquid to a hydrazine-containing concentrate storage tank. The method can effectively separate a hydrazine-containing condensate to obtain a hydrazine-containing concentrated liquid having a high hydrazine content for use in production, thereby generating economic benefits.

Description

technical field [0001] The invention relates to a method for concentrating unsymmetrical dimethylhydrazine industrial production wastewater, and belongs to the technical field of industrial production wastewater treatment. Background technique [0002] Hydrazine includes anhydrous hydrazine (N 2 h 4 ) and hydrazine hydrate (N 2 h 5 OH) and other forms of hydrazine compounds, hydrazine is mainly used in propellants such as aerospace rockets, and is also used in a large amount in civil use. Hydrazine is a third-level moderate poison and is fat-soluble. It can enter the human body through the skin, respiratory tract, digestive tract and wounds, causing poisoning. Hydrazine will also cause serious pollution after being discharged into the environment. Therefore, the discharge of hydrazine-containing wastewater is very strict. control standards. [0003] For hydrazine-containing wastewater with a single component, Japan has used air oxidation to treat hydrazine-containing wa...

Claims

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Application Information

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IPC IPC(8): C02F1/44
CPCC02F1/441C02F2301/066C02F2301/08Y02A20/131
Inventor 李克非叶伟军李新李晓华
Owner 青海爱迪旺环保科技有限公司
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