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Hydrazine hydrate wastewater treatment device and technology thereof

A wastewater treatment and treatment process technology, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., to achieve the effect of expanding enterprise production capacity, improving market competitiveness, and reducing environmental pollution

Pending Publication Date: 2018-02-23
天津海泽惠科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In summary, there is still no general method for economical and efficient treatment of hydrazine hydrate wastewater

Method used

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  • Hydrazine hydrate wastewater treatment device and technology thereof
  • Hydrazine hydrate wastewater treatment device and technology thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] like figure 1 Shown, a kind of hydrazine hydrate waste water treatment device comprises raw water tank 1, flocculation sedimentation tank 2, ceramic membrane filter 3, nanofiltration filter 4 and activated carbon filter 5 connected successively, and flocculation sedimentation tank 2 comprises flocculation tank 21 and The sedimentation tank 22, the flocculation tank 21 is provided with a stirring device 23, the flocculation sedimentation tank 2 is connected with the flocculant storage tank 7, the flocculant storage tank 7 is used to add flocculant to the flocculation tank 21, the concentrated water pipe of the nanofiltration filter 4 The outlet is connected to the inlet of the raw water tank 1, the concentrated water is circulated through repeated circulation without discharge, the ceramic membrane filter 3 is connected to the ceramic membrane washing and alkali cleaning equipment 6, the activated carbon filter 5 is connected to the cleaning tank 9, and the ceramic membra...

Embodiment 2

[0041] like figure 2 Shown, a kind of treatment process of hydrazine hydrate waste water treatment plant comprises the steps:

[0042] (1) Put the sewage in the raw water tank into the flocculation tank with stirring device, and add the flocculant PAC into the flocculation tank from the flocculant storage tank at the same time, the addition amount is 50000mg / L, and then pour it into the sedimentation tank, the sewage Suspended impurities and colloids are aggregated into large particles in the sedimentation tank and settled under the action of gravity for biochemical treatment;

[0043] (2) the sewage after the flocculation and sedimentation in the described step (1) is squeezed into the ceramic membrane filter, the aperture of the ceramic membrane filter element is 2 μm, and the membrane flux of the ceramic membrane filter element is 200L (m 2 h) -1 , the operating pressure is 0.08MPa, intercepting unsettled small molecular suspended matter, colloid and other particles in t...

Embodiment 3

[0048] like figure 2 Shown, a kind of treatment process of hydrazine hydrate waste water treatment plant comprises the steps:

[0049] (1) Pour the sewage in the raw water tank into the flocculation tank with a stirring device, and at the same time add the flocculant PAM into the flocculation tank from the flocculant storage tank, the addition amount is 100mg / L, and then pour it into the sedimentation tank, and the sewage Suspended impurities and colloids are aggregated into large particles in the sedimentation tank and settled under the action of gravity for biochemical treatment;

[0050] (2) the sewage after the flocculation and sedimentation in the described step (1) is squeezed into the ceramic membrane filter, the aperture of the ceramic membrane filter element is 7 μ m, and the membrane flux of the ceramic membrane filter element is 600L (m 2 h) -1 , the operating pressure is 0.1MPa, intercepting unsettled small molecular suspended matter, colloid and other particles...

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Abstract

The invention provides a hydrazine hydrate wastewater treatment device, and belongs to the technical field of wastewater or sewage treatment. The device comprises a raw water tank, a flocculent precipitate tank, a ceramic membrane filter, a nanofiltration filter and an active carbon filter, wherein a concentrated water pipe outlet of the nanofiltration filter is connected with the inlet of the rawwater tank; concentrated water is not discharged through overturn circulation and backflow circulation; the raw water tank, the flocculent precipitate tank, the ceramic membrane filter, the nanofiltration filter and the active carbon filter are all connected with a main drain. The invention further provides a treatment technology of the hydrazine hydrate wastewater treatment device. The hydrazinehydrate wastewater treatment device can solve negative effects, such as environmental pollution and ecological damage, by sewage of hydrazine hydrate factories, which is directly discharged, has goodsocial benefit, can further effectively solve key technical problem of hydrazine hydrate sewage treatment which restricts the development of hydrazine hydrate production enterprises, further expandsthe production capacity of the enterprises, saves energy, reduces environmental pollution, improves the labor productivity, improves the market competitiveness, and ensures that the enterprises becomeindustry leaders.

Description

technical field [0001] The invention relates to the technical field of wastewater or sewage treatment, in particular to a hydrazine hydrate wastewater treatment device and a process thereof. Background technique [0002] Hydrazine hydrate is a very important and widely used fine chemical raw material, but the sewage generated during the synthesis of hydrazine hydrate will contain a large amount of refractory organic impurities such as sodium chloride, acetone, hydrazine hydrate, and acetonazine; sewage is not only organic There are many species, high COD content and poor biodegradability. If the high-concentration hydrazine hydrate sewage is directly discharged, it will seriously pollute the environment, and the lost sodium chloride is also a great waste of resources. For a long time, incidents of illegal discharge of hydrazine hydrate production sewage exceeding the standard or even direct discharge into rivers and lakes have occurred from time to time, seriously polluting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F103/34
CPCC02F9/00C02F2103/34C02F2303/16C02F2301/046C02F1/283C02F1/44C02F1/442C02F1/5236
Inventor 马敬环
Owner 天津海泽惠科技发展有限公司
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