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Method for degrading gaseous formaldehyde by using methylotrophic bacterium

A technology of methylotrophic bacteria and gaseous formaldehyde, applied in the field of environmental microorganisms, can solve the problems of continuous degradation of gaseous formaldehyde, etc.

Inactive Publication Date: 2019-01-25
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, how to realize the continuous degradation of gaseous formaldehyde by the bacteria has not yet been carried out, and the research on the use of microorganisms to achieve the degradation of gaseous formaldehyde has not been reported.

Method used

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  • Method for degrading gaseous formaldehyde by using methylotrophic bacterium
  • Method for degrading gaseous formaldehyde by using methylotrophic bacterium
  • Method for degrading gaseous formaldehyde by using methylotrophic bacterium

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Experimental program
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Embodiment Construction

[0014] 1. Materials and methods

[0015] 1) Strain isolation and storage

[0016] Methylobacterium sp.XJLW is a facultative methylotroph with the ability to degrade formaldehyde isolated from sewage treatment plants. Preserved in the Chinese Type Culture Collection Center of Wuhan University, address: China, Wuhan, Wuhan University, postcode 430072, deposit number: CCTCC NO: M2012065, deposit date: March 8, 2012. The patent number is: CN201210235184.0, and the title of the invention is: a strain of formaldehyde-degrading bacteria and its application. This patent discloses the biological material and preservation information of the strain.

[0017] 2) Preparation of culture medium

[0018] Inorganic salt medium (M3): (NH 4 ) 2 SO 4 2.5g / L, K 2 PO 4 1.305g / L, Na 2 PO 4 4.3g / L, trace element mother solution 0.1μL, CaCl 2 ·FeSO 2 Mother liquor 1mL, pH7.0, sterilized at 115°C for 30min. If it is a solid medium, add 18g / L agar to the liquid medium; after the medium is...

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Abstract

The invention discloses a method for degrading gaseous formaldehyde by using a methylotrophic bacterium. The methylotrophic bacterium used is Methylobacterium sp.XJLW. A mesh bracket is arranged abovea formaldehyde gas source to be treated, and a polymer water absorbent resin SAP is placed on the mesh bracket as a bacterium carrier, and the methylotrophic bacterium is placed in the bacterium carrier to degrade the gaseous formaldehyde. XJLW has the significant capability to reduce the formaldehyde in the air in a closed environment that continuously releases the high-concentration gaseous formaldehyde.

Description

technical field [0001] The invention relates to a method for degrading gaseous formaldehyde by using methylotrophic bacteria. The invention belongs to the technical field of environmental microorganisms. Background technique [0002] In daily life, formaldehyde, as a strong adhesive and preservative in construction and decoration materials, can be continuously released into the air during and after the interior decoration process. Therefore, the formaldehyde in the indoor air will accumulate thereupon, so that it seriously exceeds the standard. Common indoor formaldehyde removal methods include ventilation, temperature and humidity control, and potted plant absorption. Regular ventilation is directly effective for the removal of formaldehyde in newly renovated houses, but this method is only suitable for occasions with light formaldehyde pollution, and cannot really purify rooms with medium and high concentrations of formaldehyde. So far, more and more methods, such as ph...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85B01D53/72
CPCB01D53/72B01D53/85B01D2258/06Y02A50/20
Inventor 钟卫鸿邵云海张雅楠刘往前杨宸邱乐泉
Owner ZHEJIANG UNIV OF TECH
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