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Application of a bacterial agent comprising Brevibacterium nirbii

A technology of Brevibacterium nirbii and bacterial agent, which is applied in the application field of bacterial agent, can solve the problems of low volatile organic chlorine treatment efficiency, uneven load, and packing collapse, etc., and achieve light weight, shortened start-up period, and pressure loss. small effect

Active Publication Date: 2019-04-23
DAJIANG ENVIRONMENT CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems of low volatile organic chlorine treatment efficiency, uneven loading of microorganisms on the surface of the mixed carrier, slow start-up, and collapse of fillers after long-term use in the prior art, the present invention provides a strain of Brachybacterium nesterenkovii NY- 1, and apply the strain to remove waste gas containing organic chlorine

Method used

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  • Application of a bacterial agent comprising Brevibacterium nirbii
  • Application of a bacterial agent comprising Brevibacterium nirbii

Examples

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Embodiment 1

[0037] Embodiment 1: A kind of bacterial agent and application for purifying waste gas containing organic chlorine

[0038] The present invention also provides a bacterial agent prepared by Brevibacterium nierii NY-1, which can be used to purify waste gas containing organic chlorine and solve the pollution problem of volatile organic chlorine produced in processes such as pesticide wastewater treatment. The preparation method of agent is as follows:

[0039] (1) Fermentation broth preparation method

[0040] Brevibacterium Niezii NY-1 was cultured on a slant and then inserted into the liquid fermentation medium, and the inoculation amount was 10% to carry out step-by-step amplified culture. The fermentation culture conditions were: 36°C, ventilation rate 10-100L / min, dissolved oxygen > 2.0 mg / L, tank pressure 0.03-0.10Mpa, culture time 48h;

[0041] The medium composition of slant culture is: glucose 0.5g, KH 2 PO 4 2.0g, NaHCO 3 2.0g, KNO 3 2.0g, NH 4 Cl 0.5g, MgCl ...

Embodiment 2

[0048] Embodiment 2: A kind of bacterial agent and application for purifying waste gas containing organic chlorine

[0049] The present invention also provides a bacterial agent prepared by Brevibacterium nierii NY-1, which can be used to purify waste gas containing organic chlorine and solve the pollution problem of volatile organic chlorine produced in processes such as pesticide wastewater treatment. The preparation method of agent is as follows:

[0050] (1) Fermentation broth preparation method

[0051] After being cultured on a slant, Brevibacterium Niezii NY-1 was inserted into a liquid fermentation medium with a 25% inoculum size for step-by-step amplification culture. The fermentation culture conditions were: at 36°C, ventilation rate 10-100L / min, dissolved oxygen >2.0mg / L, tank pressure 0.03-0.10Mpa, culture time 72h;

[0052] The medium composition of slant culture is: glucose 0.5g, KH 2 PO 4 2.0g, NaHCO 3 2.0g, KNO 3 2.0g, NH 4 Cl 0.5g, MgCl 2 ·6H 2 O 0...

Embodiment 3

[0059] Embodiment 3: A kind of bacterial agent and application for purifying waste gas containing organic chlorine

[0060] The present invention also provides a bacterial agent prepared by Brevibacterium nierii NY-1, which can be used to purify waste gas containing organic chlorine and solve the pollution problem of volatile organic chlorine produced in processes such as pesticide wastewater treatment. The preparation method of agent is as follows:

[0061] (1) Fermentation broth preparation method

[0062]Brevibacterium nirzia NY-1 was cultured on a slant and then inserted into the liquid fermentation medium. The inoculum size was 15% and the culture was scaled up step by step. The fermentation culture conditions were: at 36°C, ventilation rate 10-100L / min, dissolved oxygen 2.0mg / L, tank pressure 0.03-0.10Mpa, culture time 24h;

[0063] The medium composition of slant culture is: glucose 0.5g, KH 2 PO 4 2.0g, NaHCO 3 2.0g, KNO 3 2.0g, NH 4 Cl 0.5g, MgCl 2 ·6H 2 O...

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Abstract

The invention belongs to the field of environment treatment, and specifically relates to application of fungicide containing brachybacterium nesterenkovii. The brachybacterium nesterenkovii is specifically brachybacterium nesterenkovii NY-1 and is stored with the number of CGMCC No.13747; the brachybacterium nesterenkovii containing fungicide is used for cleaning organic chlorine containing wastegas; the problem of pollution caused by volatile organic chlorine produced in pesticide wastewater treatment processes and other processes can be solved; and the organic chlorine degrading efficiencyis high and is up to 90-96%; in addition, the adaptation period of the dominant bacteria is short, and the dominant bacteria can be rapidly started to degrade within 1 week; and the starting period can be reduced while the dominant bacteria is used in a biological reactor for cleaning the organic chlorine containing waste gas; and the starting period can be reduced.

Description

Technical field: [0001] The invention belongs to the field of environmental management, and in particular relates to the application of a bacterial agent comprising Brachybacterium nesterenkovii NY-1. Background technique: [0002] Organochlorine pesticides are organic compounds containing organochlorine elements in the components used to prevent and control plant diseases and insect pests, and are recognized as a very important class of persistent organic pollutants. During the production of organochlorine pesticides and the treatment of pesticide wastewater, volatile pesticide products or intermediates volatilize from the liquid phase and escape into the air, forming air pollution. Volatile pesticides and intermediates include: trichlorfon, dichlorvos, phosphorus trichloride, DDT, chloral urea, sodium trichloroacetate, HHC, aldrin, chlordane, endrin, seven Chlorine, toxaphene, hexachlorobenzene, mirex, chloral, etc. Most of these substances have a pungent smell, and some ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20B01D53/84B01D53/70C02F3/34C12R1/01C02F101/36
CPCB01D53/70B01D53/84B01D2251/95B01D2257/2064C02F3/34C02F2101/36C12N1/20Y02A50/20
Inventor 任仁朱利军柴春燕张徐祥
Owner DAJIANG ENVIRONMENT CORP
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