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Method of processing hydrazine hydrate waste water by ketone linking nitrogen method

The technology of a ketazine method and a treatment method is applied in the field of treating waste water generated when hydrazine hydrate is produced by the ketazine method, and can solve the problems of organic matter being not easily degraded and the like

Active Publication Date: 2009-08-12
WEIFANG YAXING GRP CO LTD
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: provide a kind of method for processing hydrazine hydrate waste water of ketazine process, to solve - Under environmental conditions, the organic matter in the hydrazine hydrate wastewater of the ketazine method is not easy to be degraded. The hydrazine hydrate wastewater treated by this method can not only be used in the chlor-alkali production of the diaphragm method, which reduces the production cost of chlor-alkali, but also avoids the waste water Pollution caused by direct discharge to the environment

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  • Method of processing hydrazine hydrate waste water by ketone linking nitrogen method

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Embodiment Construction

[0013] The treatment method of ketazine method hydrazine hydrate wastewater is firstly a bubbling step. The hydrazine hydrate wastewater from the ketazine method is introduced into the bubbling chamber after a steady flow, and is heated by straight-through steam, or by other methods, such as conduction heating. The temperature is kept constant, and the air is blown by the blower for about 30 minutes. The function of the steady flow separation step is to stabilize the flow rate of the ketazine method hydrazine hydrate wastewater and provide a uniform and stable environment for air bubbling.

[0014] According to the principle of thermodynamics, the higher the temperature, the faster the molecular motion. Repeated tests have shown that under normal temperature conditions, the effect of bubbling treatment is not obvious, and the content of organic matter and ammonia nitrogen does not decrease much. When the temperature is around 40°C, the reduction rate of organic matter and ammo...

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Abstract

The invention discloses a disposing method of ketone azino hydrazine hydrate waste water, which comprises the following steps: leading the ketone azino hydrazine hydrate waste water into bubbling chamber; keeping constant temperature at 35-100 deg. c; leading the waste water and oxidizer into oxidizing tank; maintaining the temperature at 20-100 deg. c; reacting organics and amonia in the waste water with oxidizer completely until the ammonia nitrogen content less than 4mg / l and organics less than 200mg / l; using in the alkali-chloride manufacturing course of diaphragm method; reducing the manufacturing cost of alkali-chloride; avoiding the pollution due to discharging the waste water directly.

Description

technical field [0001] The invention relates to a method for treating wastewater, in particular to a method for treating wastewater generated when hydrazine hydrate is produced by a ketazine method. Background technique [0002] Hydrazine hydrate, also known as: hydrazine hydrate, chemical formula: N 2 h 4 .H 2 O, is a fine chemical product. As a chemical intermediate, hydrazine hydrate has a wide range of potential uses and application fields, which are mainly divided into three aspects: first, the production of plastic foaming agents; second, in the steam cycle of the power industry, it is used to prevent The pipes are rusted and aged in advance, thereby greatly improving the safety and reliability of the power station; in addition, hydrazine hydrate is also an important raw material for medicine and pesticides. There are many production methods for hydrazine hydrate, among which the urea method and the ketazine method are widely used in industrial production. The pro...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F7/00C02F1/04C02F1/72C02F101/12C02F101/16C02F101/30
CPCY02W10/10
Inventor 龚以行唐文军杨雷陈法春朱华伟段良波张彬彬王景春隋树鹏孙岩
Owner WEIFANG YAXING GRP CO LTD
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