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Boron-containing rare earth oxide composite for treating unsymmetrical dimethylhydrazine waste water and treatment method of unsymmetrical dimethylhydrazine waste water

A technology of unsymmetrical dimethylhydrazine and composite materials, which is applied in the fields of chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, water pollutants, etc., and can solve the problem of complex oxidation reaction mechanism, high operating cost, secondary Pollution and other issues, to achieve the effect of improving treatment efficiency, good decomposition effect, and speed up

Active Publication Date: 2019-07-12
江苏金环科技有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The residual concentration of treated wastewater is low, but the operating cost is high, the oxidation reaction mechanism is complicated, and there are many toxic intermediate products, which will cause secondary pollution and harm
[0008] Titanium dioxide oxidation method generally requires ultraviolet irradiation, which has a good degradation effect on unsymmetrical dimethylhydrazine, especially the use of nano-scale titanium dioxide catalyst, which is simple to operate and occupies a small area, but the construction investment and operation and maintenance costs are high

Method used

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  • Boron-containing rare earth oxide composite for treating unsymmetrical dimethylhydrazine waste water and treatment method of unsymmetrical dimethylhydrazine waste water

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Effect test

Embodiment 1

[0034] Embodiment 1: Boron-containing ceria composite material and preparation method thereof

[0035] A boron-containing rare earth oxide composite material for treating unsymmetrical dimethylhydrazine wastewater is made of cerium ammonium nitrate and boric acid.

[0036] S1. Add 2.176g of cerium ammonium nitrate into 100ml of water, stir and ultrasonically dissolve it;

[0037] S2. Under the condition of continuous stirring, add 0.1 g of boric acid into S1, stir and ultrasonically mix evenly;

[0038] S3. Put the mixture obtained in S2 into an oven, heat it to 220° C., and dry it to obtain a boron-containing ceria composite material.

Embodiment 2

[0039] Embodiment 2: Boron-containing ceria composite material

[0040] A boron-containing rare earth oxide composite material for treating unsymmetrical dimethylhydrazine wastewater is made of cerium ammonium nitrate, boric acid and pentaerythritol.

[0041] A1. Add 2.176g of cerium ammonium nitrate to 100ml of water, ultrasonically and stir to fully dissolve;

[0042] A2. Under the condition of continuous stirring, add 0.12g boric acid and 0.01g pentaerythritol to A1, continue to sonicate and stir to mix evenly;

[0043] A3. Put the mixture obtained in A2 into an oven, heat it to 220°C, and dry it to obtain a boron-containing ceria composite material.

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Abstract

The invention discloses a material and a method of treating unsymmetrical dimethylhydrazine waste water and belongs to the field of waste water treatment. The invention aims at providing a material and a method of treating the unsymmetrical dimethylhydrazine waste water with high decomposition efficiency and low treatment cost. A boron-containing cerium dioxide composite is prepared from ammoniumceric nitrate and boric acid. The treatment method comprises the following steps: B1, adding the boron-containing cerium dioxide composite and the unsymmetrical dimethylhydrazine waste water into an autoclave and performing stirring to achieve uniform dispersion, B2, testing an ultraviolet absorption peak of the unsymmetrical dimethylhydrazine waste water in the autoclave every other 1-5h, and B3,comparing the measured ultraviolet absorption peaks with a standard curve of the unsymmetrical dimethylhydrazine waste water, and calculating a concentration of the unsymmetrical dimethylhydrazine waste water in the autoclave.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a material and method for treating unsymmetrical dimethylhydrazine wastewater. Background technique [0002] Unsymmetrical dimethylhydrazine is a colorless, volatile, flammable, explosive, and toxic liquid, belonging to the third-level moderate toxicity. At present and for a long time in the future, unsymmetrical dimethylhydrazine will be used in rockets, satellites, spaceships, etc. liquid fuel for engine engines. [0003] Unsymmetrical dimethylhydrazine wastewater comes from the processes of liquid propellant production, transportation, transfer, sampling, testing, filling, leakage, waste gas treatment, equipment maintenance, decontamination, and engine test run. The wastewater is characterized by intermittent generation, unequal cycle, complex composition, low content, mainly organic matter and high toxicity. [0004] The main components of wastewater are unsymmetrical di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/10C02F1/32C02F101/38
CPCB01J23/10C02F1/32C02F2101/38C02F2305/10
Inventor 王莹吴晔蒋超顾万建林斌曹翀
Owner 江苏金环科技有限公司
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