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Bacteria and its application in absorbing VOCs

A technology of bacteria and fungi, applied in the field of VOCs treatment, can solve the problem of low waste gas treatment efficiency, achieve high degradation efficiency and good treatment effect

Inactive Publication Date: 2017-10-17
SCI RES ACADEMY OF GUANGXI ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a bacterium and its application in absorbing VOCs to solve the problem that the prior art generally uses activated sludge from a sewage treatment plant as a strain, and the strain has a low treatment efficiency for waste gas containing VOCs

Method used

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  • Bacteria and its application in absorbing VOCs
  • Bacteria and its application in absorbing VOCs
  • Bacteria and its application in absorbing VOCs

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0030] The preparation method of described synthetic adsorbent comprises the following steps:

[0031] (a) analyzing the element content in the blast furnace slag by X-ray fluorescence spectrometry, and calculating the ratio of Mg / (Mn+Si) to 0.05-0.09 and the ratio of Mn / (Mn+Si) to 0.187-0.213 through the element content;

[0032] (b) Adjust blast furnace slag Mg / (Mn+Si) ratio and Mn / (Mn+Si) ratio, add MgO and SiO to 1g blast furnace slag 2 Adjust the Mg / (Mn+Si) ratio and the Mn / (Mn+Si) ratio to 0.83-0.85 and 0.142-0.148 respectively to prepare a mixture A;

[0033] (c) Add 32-35mL deionized water to the mixture A prepared in step b, and stir for 12-15min at a microwave power of 100-150W, a temperature of 30-35°C, and a rotation speed of 200-300r / min to obtain mixture B;

[0034] (d) Put the mixture B prepared in step c in a reaction kettle, react at 400-500°C for 4-6h to obtain a reaction product, wash the reaction product with deionized water, and dry it at 75-82°C until i...

Embodiment 1

[0043] Such as figure 1 Shown: a reaction system for absorbing VOCS, including an ultraviolet light treatment chamber 1, a circulating liquid device 2, and an absorption reaction tower 3. The ultraviolet light treatment chamber 1 is connected to the absorption reaction tower 3 through a pipeline A, and the circulation The liquid device 2 is connected to the top of the absorption reaction tower 3 through a pipe B, and the circulating liquid device 2 is connected to the bottom of the absorption reaction tower 3 through a pipe C.

[0044] The ultraviolet light treatment chamber 1 includes an air inlet 11 .

[0045] The circulating fluid device 2 includes a temperature sensor A 21 and a pH electrode 22 , the temperature sensor A 21 is arranged on the top of the circulating fluid device 2 , and the pH electrode 22 is arranged on the bottom of the circulating fluid device 2 .

[0046] The absorption reaction tower 3 includes a grid-type biofilm filler 31, a temperature sensor B 32,...

Embodiment 2

[0061] Such as figure 1 Shown: a reaction system for absorbing VOCS, including an ultraviolet light treatment chamber 1, a circulating liquid device 2, and an absorption reaction tower 3. The ultraviolet light treatment chamber 1 is connected to the absorption reaction tower 3 through a pipeline A, and the circulation The liquid device 2 is connected to the top of the absorption reaction tower 3 through a pipe B, and the circulating liquid device 2 is connected to the bottom of the absorption reaction tower 3 through a pipe C.

[0062] The ultraviolet light treatment chamber 1 includes an air inlet 11 .

[0063] The circulating fluid device 2 includes a temperature sensor A 21 and a pH electrode 22 , the temperature sensor A 21 is arranged on the top of the circulating fluid device 2 , and the pH electrode 22 is arranged on the bottom of the circulating fluid device 2 .

[0064] The absorption reaction tower 3 includes a grid-type biofilm filler 31, a temperature sensor B 32,...

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Abstract

The invention discloses a bacteria; the bacteria is prepared from, by weight, 32-56 parts of sarcina, 15-34 parts of spirillum, 20-35 parts of Brevibacillus laterosporus, 23-62 parts of Acinetobacter lwoffii, and 36-68 parts of Chryseobacterium indologenes. When the bacteria is applied to treat the VOCs waste gas, the treatment effect to VOCs is good, and the degrading efficiency is high.

Description

【Technical field】 [0001] The invention belongs to the technical field of VOCs treatment, in particular to a bacterium and its application in absorbing VOCs. 【Background technique】 [0002] Volatile organic compounds, the English name is volatile organic compounds, abbreviated as VOCs. In my country, it refers to organic compounds with a saturated vapor pressure greater than 70Pa at normal temperature and a boiling point below 260°C at normal pressure, or a vapor pressure greater than or equal to 20°C. 10Pa has all organic compounds with corresponding volatility. The most common VOCs are benzene, toluene, xylene, styrene, trichloroethylene, chloroform, trichloroethane, diisocyanate, etc. [0003] VOCs are atmospheric pollutants, which use the air as the medium of transmission, and have toxic effects on the human body through the respiratory system and skin. At present, the main methods of controlling VOCs are physical method, chemical method and biological method. Among the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20B01D53/84B01D53/86B01D53/72C12R1/01C12R1/08
CPCB01D53/84B01D53/8662B01D53/8668B01D2257/708C12N1/20Y02A50/20
Inventor 张达标莫招育陈志明毛敬英杨俊超李宏姣黄炯丽
Owner SCI RES ACADEMY OF GUANGXI ENVIRONMENTAL PROTECTION
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