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Water Microbacteria and Its Application in Removing Sulfur-Containing Malodorous Substances

A water micro-bacteria, odor technology, applied in the field of environmental governance, can solve the problems of high filling density, short service life, easy loss, etc., achieve the effect of maintaining purification effect, shortening the start-up period, and not easy to lose

Active Publication Date: 2016-08-24
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compost materials, wood chips, bark and other carriers have small specific surface area, high filling density, large pressure loss, perishable, and short service life; the surface of Raschig rings and ceramsite is smooth, and microorganisms are not easy to attach and are more likely to be lost
The inoculum of the bioreactor for purifying sulfur-containing and malodorous substances is mostly activated sludge from the sewage treatment plant, the microbial adaptation period is long, and the bioreactor starts slowly

Method used

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  • Water Microbacteria and Its Application in Removing Sulfur-Containing Malodorous Substances

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0046] Example 1: Water microbes are degrading H 2 S gas application.

[0047] Aquamicrobium defluvii (Aquamicrobium defluvii) SU1, CGMCC No.7399, the bacterial agent can be prepared by the production process of test tube slant seed-shake flask seed-seed tank-production tank-product (packaging dosage form is liquid bacterial agent or solid adsorption bacterial agent) get.

[0048] The invention provides a strain of water bacteria (Aquamicrobium defluvii) SU1 (CGMCC No.7399) that degrades sulfur-containing malodorous substances. The bacteria agent prepared by the bacteria is 1.0-50m 3 / h, residence time 1-3min, temperature 20-37℃, hydrogen sulfide concentration 0.1-50mg / m 3 , methyl mercaptan 0.1-20mg / m 3 , The degradation efficiency of hydrogen sulfide, methyl mercaptan and other sulfur-containing odorous substances can reach more than 85%. It can be used to purify the gas of sulfur-containing and odorous substances, and solve the problem of odor pollution caused by sewage...

example 2

[0073] Example 2: Use effect experiment (use the filler in Example 1 to treat the following gases).

[0074] (1) Treat the sulfur-containing malodorous gas escaped from the sludge sedimentation tank of the sewage plant, and the gas flow rate is 35m 3 / h, the residence time is 1-3mins, and it operates at room temperature. The intake concentration of hydrogen sulfide is: 13.21mg / m 3 , the output gas concentration is 0.03mg / m 3 , which is lower than the emission standard of odorous pollutants formulated by the state, and the removal rate exceeds 99%.

[0075] (2) Used to treat sulfur-containing malodorous gases produced by sludge composting, the concentrations of hydrogen sulfide and ethanethiol are 17.3mg / m3 3 and 3.69mg / m 3 , the gas flow rate is 70m 3 / h, the residence time is 1-3mins, operating at room temperature, the removal rates of hydrogen sulfide and ethanethiol are both greater than 80%.

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Abstract

The invention discloses a Aquamicrobium defluvii and application thereof in removing sulfur-containing odorants. The Aquamicrobium defluvii SU1 disclosed by the invention is an isolate obtained by treating a reactor containing H2S and other odorants in Water Pollution Control Laboratory in Research Center for Eco-Environmental Sciences of Chinese Academy of Sciences; and the strain is collected in China General Microbiological Culture Collection Center, and the collection number is CGMCC No. 7399. The strain can be prepared into a microbial active filler for purifying sulfur-containing odorant gases, thereby solving the problem of odor pollution generated in the process of sewage or sludge treatment, refuse treatment, composting and the like. The degradation efficiency for sulfur-containing odorants, such as hydrogen sulfide, methyl mercaptan, dimethyl sulfide and the like, can reach higher than 83%.

Description

technical field [0001] The invention belongs to the field of environmental treatment, and in particular relates to a microorganism for removing sulfur-containing malodorous substances and its application. Background technique [0002] In the process of sewage, sludge treatment, garbage treatment and composting, a large amount of odorous gas will be produced. Sulfur-containing substances such as hydrogen sulfide, mercaptan, sulfide, and carbon disulfide are common odorous substances in the odorous gas. The malodorous substance escapes into the atmosphere and spreads everywhere with the flow of air, causing pollution to the surrounding environment and causing harm to human health. At present, the control of air pollution and odor has attracted more and more attention, and many countries have established strict emission standards. Strictly control the discharge of pollutants in the exhaust gas, and require enterprises to take corresponding control measures before discharging p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20B01D53/84B01D53/52B01D53/48C12R1/01
CPCY02A50/20
Inventor 刘俊新丁文杰李琳
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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