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Purification method for wastewater of ammunition disassembly

A wastewater purification and ammunition technology, which is applied in the field of water purification, can solve the problems of intermittent discharge, ammunition dismantling wastewater purification method is immature, and the water volume is small, so as to achieve high treatment efficiency, complete and thorough ultraviolet ozone oxidation process, and short residence time Effect

Inactive Publication Date: 2008-09-24
ENG DESIGN & RES INST OF GENERAL ARMAMENTS DEPT
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of this, in order to overcome the current immature purification method of ammunition dismantling wastewater, and at the same time aiming at the characteristics of small water volume and intermittent discharge of ammunition dismantling wastewater in each ammunition dismantling station, the purpose of the present invention is to provide a short residence time, Purification method of ammunition dismantling wastewater with high treatment efficiency, good effluent quality, simple management and convenient maintenance

Method used

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  • Purification method for wastewater of ammunition disassembly
  • Purification method for wastewater of ammunition disassembly
  • Purification method for wastewater of ammunition disassembly

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A certain ammunition destruction station concentrates on destroying waste ammunition. The concentrated working time is about two weeks every year, and 20m of ammunition dismantling wastewater is generated. 3 , into the sump. The size of the existing sump is 3.3m×3.3m×3m, which can meet the requirements.

[0031] The sump is located underground, covered with a cement prefabricated board, and ancillary rooms are built above the sump to protect the processing equipment and eliminate the noise caused by the air compressor.

[0032] The wastewater is lifted by the pump into the air flotation filter, and most of the flocs in the wastewater are removed under the air flotation of the air flotation filter, and the SS (Suspended Solid) is reduced from 600mg / l of raw water to 100mg / l; The air flotation device has no degradation effect on COD (chemical oxygen demand), but due to the reduction of organic matter in suspended matter, the COD of raw water is reduced from 800mg / l to 600...

Embodiment 2

[0043] It is basically the same as Embodiment 1, the difference is:

[0044] Activated carbon filter material, particle size d min 2mm, filter layer thickness 0.5m.

Embodiment 3

[0046] It is basically the same as Embodiment 1, the difference is:

[0047] Activated carbon filter material, particle size d min 4mm, filter layer thickness 1.5m.

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Abstract

The invention discloses a purification method of ammunition resolving wastewater, which includes the purification steps that: firstly, oil slick and suspended particulates are filtered and removed; secondly, under the irradiation of ultraviolet light, ozone is mixed and reacted with wastewater by the micro bubble form; thirdly, reacted water flows into a biological pool, the biological pool purifies the wastewater and indicates the water quality, and the wastewater reaches the mark and can be discharged outside when in the normal state. Through the reinforced pretreatment, the purification method removes suspended substance and granule precipitate in the wastewater are filtered and removed before the ozone oxidation treatment, the consumption of the suspended substance and the granule precipitate to the ozone during the oxidation is reduced, and the purification method of the ammunition resolving wastewater, which has short detention time, high treatment efficiency, and good yielding water quality, is invented successfully by combining the ozone oxidation and the traditional biological pool technology.

Description

technical field [0001] The invention relates to the field of water purification, in particular to a purification method for ammunition dismantling wastewater. Background technique [0002] At present, there is no relevant report on the treatment of scrap ammunition dismantling wastewater in China. Since the main pollutant in ammunition dismantling wastewater is TNT, the research on the treatment of ammunition dismantling wastewater focuses on the conversion of TNT. At present, the treatment processes of TNT-containing wastewater mainly include adsorption, chemical oxidation, and biological methods. The above methods can remove pollutants in TNT wastewater to a certain extent, but each has its own shortcomings. The adsorption process is simple and the treatment cost is low, but the pollutants are not really removed, which is easy to cause secondary pollution, and it is difficult for the effluent pollutants to meet the discharge standards; the chemical oxidation method can co...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/40C02F1/32C02F1/78
CPCY02W10/10
Inventor 张统万全李志颖方小军
Owner ENG DESIGN & RES INST OF GENERAL ARMAMENTS DEPT
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