Pallidum pallidum active filler and preparation method thereof

A technology of Bacillus hominis and active filler, which is applied in the field of environmental management, can solve the problems of slow startup of bioreactors, long microbial adaptation period, and difficulty in attaching microorganisms, etc., and achieves the effects of small resistance, short adaptation period and shortened start-up period.

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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  • Pallidum pallidum active filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0044] Example 1: A kind of Paleobacterium hominis active filler for removing sulfur-containing malodorous substances and its preparation method.

[0045] An active filler of Pseudomonas anthropi that removes sulfur-containing malodorous substances, the filler is attached with Ochrobactrum anthropi SL1 described in Ochrobactrum anthropi SL1, the preservation number is CGMCC No.7400, and the filler is Polyurethane foam blocks;

[0046] The packing density is 0.9kg / m 3 , the porosity is 90%, the particle size is 20mm;

[0047] The microorganisms are attached to the filler in the form of bacterial suspension;

[0048] The mass ratio of the microbial suspension to the lightweight porous material is 100:10;

[0049] The concentration of Ochrobactrum anthropi SL1 cells in the described human Pallidum active filler is greater than 10 6 CFU / g

[0050] The preparation steps of the human Pallidum pallidus active filler are as follows:

[0051] (1) Slant culture: prepare the slant ...

example 2

[0062] Example 2: An active filler of Pallidinus hominis degrades H 2 S gas application.

[0063] Paleobacterium pallidum SL1 (CGMCC No.7400), the inoculum prepared by this bacterium can be produced through the production of test tube slant species-shake flask species-seed tank-production tank-product (packaging dosage form is liquid inoculum or solid adsorption inoculum) The process is prepared. The bacterial agent has a gas flow rate of 1.0-90m 3 / h, residence time 1-3min, temperature 20-37°C, hydrogen sulfide concentration 0.1-80mg / m 3 , methyl mercaptan 0.1-10mg / m 3 , methyl sulfide 0.1-10mg / m 3 , The degradation efficiency of hydrogen sulfide, methyl mercaptan, methyl sulfide and other sulfur-containing odorous substances can reach more than 90%. It can be used to purify the gas of sulfur-containing and odorous substances, and solve the problem of odor pollution caused by sewage, sludge treatment, garbage treatment and composting.

[0064] Odor gas treatment using P...

example 3

[0069] Example 3: Use effect experiment (use the filler of Example 1 for the treatment of the following gases).

[0070] (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: 24.83mg / 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%.

[0071] (2) Used to treat sulfur-containing malodorous gases produced by sludge composting, the concentrations of hydrogen sulfide and ethanethiol are 15.7mg / m3 3 and 3.51mg / m3, 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 90%.

[0072] (3) Landfill, disposal contains 92.5mg / m 3 Hydrogen sulfi...

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Abstract

The invention discloses an ochrobactrum anthropi SL1 active filler and a preparation method thereof. Ochrobactrum anthropi SL1 is an isolate obtained from a reactor for treating repugnant substances containing H2S and the like in a water pollution control laboratory in Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. The strain is collected in China General Microbiological Culture Collection Center (CGMCC), with collection number of CGMCC No.7400. The ochrobactrum anthropi SL1 active filler for removing the repugnant substances containing sulfur has big specific surface area, high porosity, good breathability, small resistance and high bacterial cell loading capacity, is not easy to run off, is loaded with ochrobactrum anthropi SL1, has higher hydrogen sulfide degradation efficiency, has low filling density and low pressure in the bioreactor for purifying waste gases, is not easy to decay or deform, can be used for a long term and can adapt to complex treatment conditions.

Description

technical field [0001] The invention belongs to the field of environmental management, in particular to an active filler of Pseudomonas pallidus for removing sulfur-containing malodorous substances and its preparation method and 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 ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N11/14C12N11/08B01D53/84C12R1/01
CPCY02A50/20
Inventor 李琳刘俊新
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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