Ammonium perchlorate wastewater treatment method and system

A technology of ammonium perchlorate and its treatment method is applied in the field of environmental biology to achieve the effects of simple process operation, saving economic expenses, and saving costs

Pending Publication Date: 2021-03-02
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Studies have shown that the microbial method is a feasible method for removing ammonium perchlorate, but it is necessary to consider providing sufficient electron donors for the microbial system during the biological treatment process. Economic rationality and process operability need to be further evaluated and improved

Method used

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  • Ammonium perchlorate wastewater treatment method and system

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Embodiment 1

[0053] A kind of treatment method of ammonium perchlorate waste water of the embodiment of the present invention, specifically comprises the following steps:

[0054] The stage of preparing furfural from corncobs includes: weighing a certain amount of corncobs, adding 5% dilute sulfuric acid for soaking, and hydrolyzing at high temperature to produce furfural;

[0055] The neutralization stage of furfural wastewater includes: neutralization treatment of furfural wastewater, wherein the by-product acetic acid produced in the process of preparing furfural is neutralized by sodium hydroxide, and the sodium acetate produced is recovered and reserved for the domestication stage of perchlorate-reducing bacteria Electron donors and carbon sources in the reduction stage of ammonium perchlorate with heterotrophic organisms, reducing the economic losses caused by the addition of electron donors and carbon sources in conventional biological degradation of ammonium perchlorate wastewater; ...

Embodiment 2

[0060] In the embodiment of the present invention, all the other are the same as embodiment 1, the difference is only that the treatment of ammonium perchlorate waste water is 800mg / L.

Embodiment 3

[0062] In the embodiment of the present invention, all the other are the same as embodiment 1, the difference is only that the treatment of ammonium perchlorate waste water is 1000mg / L.

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Abstract

The invention discloses an ammonium perchlorate wastewater treatment method and system, and the method comprises the following steps: hydrolyzing corncobs as a raw material to generate furfural, and recovering sodium acetate in the furfural wastewater neutralization process; using sodium acetate for providing an electron donor and a carbon source for the process of reducing ammonium perchlorate byperchlorate reducing bacteria; and using waste iron powder as a source of an electron donor, and conducting secondary reduction of ammonium perchlorate. Ammonium perchlorate is reduced into chlorideions by adopting an autotrophic reduction and heterotrophic reduction two-stage degradation combined process, so that the concentration of the ammonium perchlorate wastewater is reduced, and the treatment of the ammonium perchlorate wastewater is completed. According to the method, the treatment cost of the ammonium perchlorate wastewater can be remarkably reduced, the removal effect of the ammonium perchlorate wastewater is improved, and meanwhile resource recycling of the furfural wastewater is achieved.

Description

technical field [0001] The invention belongs to the field of environmental biology technology, relates to the field of perchlorate heterotrophic and autotrophic biological reduction methods, in particular to a treatment method and system for ammonium perchlorate wastewater. Background technique [0002] As a strong oxidizing agent, perchlorate is widely used in the manufacture of solid propellants for rockets and missiles, fireworks, flares, electronic products, and automotive airbags. The ammonium perchlorate in the solution was flushed out. ClO 4 - Very soluble in water and stable in water, due to ClO 4 - size and iodine (I - ) similar, will replace I - Absorbed by mammals, it interferes with the intake of iodine, which is one of the essential elements for the production of thyroid hormones. Lack of thyroid hormones can cause endocrine disorders and poor development of the central nervous system. [0003] At present, the treatment methods of ammonium perchlorate was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/12C02F101/16
CPCC02F9/00C02F2101/12C02F2101/16C02F1/66C02F3/34C02F1/705
Inventor 高宁博程丽杰全翠
Owner XI AN JIAOTONG UNIV
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