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Chelatococcus daeguensis with good aerobic denitrification performance and application thereof

An aerobic denitrification and billiard technology, which is applied in aerobic process treatment, bacteria, chemical instruments and methods, etc., can solve the problems of inability of microorganisms to survive, denitrification without aerobic, etc., and achieves strong temperature tolerance and reduced The effect of running costs

Active Publication Date: 2012-03-14
广州普邦园林股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the temperature of the flue gas of many coal-fired power plants after dust removal and wet desulfurization is about 50°C (medium temperature environment), most microorganisms cannot survive at this temperature, or survive but have no aerobic denitrification ability

Method used

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  • Chelatococcus daeguensis with good aerobic denitrification performance and application thereof
  • Chelatococcus daeguensis with good aerobic denitrification performance and application thereof
  • Chelatococcus daeguensis with good aerobic denitrification performance and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] Application of Chelatococcus daeguensis TAD1 in biological denitrification of wastewater

[0024] Take 5 ml of sterilized nitrate-containing medium DM and put it into a test tube, and insert it into a sample of Chelatococcus daeguensis TAD1 strain preserved in a glycerol tube. Place the test tube on a constant temperature shaker, keep the constant temperature at 50°C, and activate the strain at a shaker speed of 160r / min. After 12 hours of activation, the denitrification and denitrification performances were measured in a 250ml Erlenmeyer flask filled with 200ml of nitrate-containing medium DM with 10% inoculum. In order to ensure the exchange of the air in the Erlenmeyer flask with the outside gas, it was sealed with a parafilm, and the flask was cultured at 50° C. on a constant temperature shaker in an air bath at 160 r / min. Under the same conditions, a blank nitrate-containing medium sample was used as a comparative benchmark experiment. The nitrate in the DM mediu...

Embodiment 2

[0028] Chelatococcus daeguensis TAD1 for Nitrogen Oxide Removal from Medium Temperature Flue Gas

[0029] Biological filtration systems (such as figure 1 ) mainly includes gas distribution system, gas regulator (mass flow meter 1), gas buffer bottle 3, constant temperature water bath 4, honeycomb ceramic filler 5, biological trickling filter tower 6 and liquid storage tank 7. The main part is a 2.5L bio-trickling filter tower 6, made of plexiglass, filled with honeycomb ceramic filler 5 (porosity 0.55, diameter 4-6mm), liquid storage tank 7 with an inner diameter of 80mm, a wall thickness of 10mm, and a total height of 500mm. The temperature of the nutrient solution in the liquid storage tank 7 is maintained at 50°C, and the nutrient solution in the liquid storage tank 7 is pumped to the biological trickling filter tower 6 by the metering pump 2, and evenly sprayed on the microbial bed through the liquid distributor at the top of the filter tower, The exudate is recycled to t...

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Abstract

The invention discloses chelatococcus daeguensis TAD1 with good aerobic denitrification performance, which is preserved by China General Microbiological Center Culture Collection Center (CGMCC for short), the preservation number is CGMCC No.5226, and the preservation date is September 6, 2011. The chelatococcus daeguensis has higher temperature resistance degree, has efficient aerobic denitrification performance at the temperature condition below 70 DEG C and is used for the denitrification treatment of nitrogenous wastewater and the nitrogen oxide removal treatment of smoke gas or waste gas through aerobic denitrification, the NOx removal from medium-temperature smoke gas through biological filtration can be realized without temperature reduction, the operation cost is reduced, and the removal rate is higher than 60 percent.

Description

technical field [0001] The invention relates to a Chelatococcus daeguensis TAD1 strain with aerobic denitrification performance and its application to medium-temperature flue gas removal of nitrogen oxides and waste water removal of ammonium, nitrate and nitrite in water method. Background technique [0002] In recent years, with the rapid development of economy, the content of nitrogen oxides (NOx) in the atmosphere has increased sharply, which has seriously affected the living environment of human beings. NOx in the air not only produces acid rain, acidifies soil and water sources, and affects the growth of crops, but also destroys the ozone layer, causes climate change, and then affects the entire ecological environment. Due to the continuous increase of NOx emissions, the research on the principle and technology of NOx pollution control has become one of the hot spots at present. Especially in our country, the control of NOx is imminent. The main anthropogenic sources...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C02F3/34C02F3/02B01D53/84B01D53/56C12R1/01
CPCY02A50/20Y02W10/10
Inventor 黄少斌许辅乾
Owner 广州普邦园林股份有限公司
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