Unlock instant, AI-driven research and patent intelligence for your innovation.

System and method for rapidly domesticating and enriching VOCs degradation bacterial group

A bacteria-degrading, rapid technology, applied in chemical instruments and methods, biochemical equipment and methods, separation methods, etc., can solve the problems of complex exhaust gas components, difficult to remove at the same time, and large differences in the physical and chemical properties of the components. Improve purification efficiency, expand the effect of production and engineering equipment

Inactive Publication Date: 2017-07-28
GUANGDONG INST OF MICROBIOLOGY GUANGDONG DETECTION CENT OF MICROBIOLOGY
View PDF6 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the complex composition of industrial VOCs exhaust gas, the physical and chemical properties of each component are quite different, and there is a problem that it is difficult to remove them at the same time

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • System and method for rapidly domesticating and enriching VOCs degradation bacterial group

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Example 1 Enrichment screening of paint and coating waste gas degrading bacterial flora

[0042] Take 100mL of fresh activated sludge from the sewage station of the paint manufacturer, add glass beads, and vortex for 30 minutes. Take 1mL of sludge suspension and inoculate it into a system containing 100mL of sterilized and enriched liquid medium C0 for rapid domestication and enrichment of VOCs degrading bacteria. A magnetic stirrer is placed at the bottom of the culture production device, the pH is controlled at 7.2, and the temperature is 30 ℃.

[0043] The composition of the exhaust gas from the paint production workshop was determined by the gas phase method, and the main gas components were determined to be composed of toluene, ethylbenzene, xylene, ethyl acetate, butyl acetate and methyl ethyl ketone, and the concentration of each component was toluene 30 -50mg / m 3 , ethylbenzene 10-30mg / m 3 , Xylene 50-70mg / m 3 , ethyl acetate 4-10mg / m 3 , butyl acetate 40-6...

Embodiment 2

[0047] The enrichment screening of embodiment 2 petroleum degrading bacterial flora

[0048] Take 500mL of fresh activated sludge from the sewage treatment station of petrochemical plant. After pre-treatment to remove impurities, add glass beads and vortex for 30 minutes. Take 5 mL of sludge suspension and inoculate it into 300 mL of sterilized and enriched liquid culture medium, put it into the system for rapid domestication and enrichment of VOCs degrading flora of the present invention, a magnetic stirrer is placed at the bottom of the culture device, the pH is controlled to 7.2, and the temperature is 30°C.

[0049] Take 10mL of motor gasoline with a syringe, and place the syringe in a micro-injection pump. Air is provided by the air compressor tank, divided into two lines, one of which is connected to the syringe. A microsyringe pump injects gasoline into the air line at an injection rate of 0.1-1 μL / min. After the two gas pipelines are combined, they enter the mixing ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a system and method for rapidly domesticating and enriching a VOCs degradation bacterial group. The system for rapidly domesticating and enriching the VOCs degrading bacterial group comprises an air inlet device, a gas mixing device, a filter unit, a culture production device and a tail gas treatment device which are sequentially connected by virtue of pipelines. The system and method which are disclosed by the invention can obtain the VOCs degradation bacterial group within shorter time by continuously introducing mixed VOCs gases, has the advantages of short domestication time and reasonable bacterial group structure and can be directly applied to expanded production and engineering equipment; meanwhile, the system and the method also can detect and evaluate the purifying effect of the bacterial group on VOCs waste gas in real time, and enrichment efficiency is improved, so that the method disclosed by the invention is a practical VOCs waste gas degrading bacterium enriching and screening method.

Description

technical field [0001] The invention belongs to the technical field of industrial waste gas treatment. More specifically, the invention relates to a system and method for enriching VOCs degrading bacterial flora through rapid domestication. Background technique [0002] Industrial emissions are one of the important sources of atmospheric volatile organic compounds (Volatile organic compounds, VOCs). Industrial sources of VOCs come from a wide range of sources, with various types and huge emissions. Long-term exposure to air polluted by VOCs can seriously damage the human respiratory system, reproductive system, immune system, and central nervous system, and some VOCs also have three effects. In addition, VOCs are also the main precursor substances for the generation of near-surface atmospheric ozone and PM2.5. In recent years, frequent large-scale smog weather in China has attracted serious attention from all parties. A series of industry emission standards and prevention ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/04C12M1/02C12N1/02B01D53/84B01D53/44B01D53/75B01D46/00
CPCB01D46/00B01D53/44B01D53/75B01D53/84B01D2251/95B01D2257/708C12M27/02C12M29/04C12M29/06C12M47/12C12N1/02Y02A50/20
Inventor 李建军钟玉鸣许玫英席婧茹张甜甜陈志平
Owner GUANGDONG INST OF MICROBIOLOGY GUANGDONG DETECTION CENT OF MICROBIOLOGY