Combined biological deodorization integrated equipment and processing method of odorous gas

A biological deodorization and composite technology, which is applied in chemical instruments and methods, separation methods, air quality improvement, etc., can solve the problems of water level drop, treatment effect reduction, and hindering the upward flow of gas, so as to achieve uniform gas distribution and keep gas smooth flow effect

Inactive Publication Date: 2011-09-21
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the upward flow biological waste gas treatment equipment of the composite bioreactor waste gas treatment equipment has no water outlet at the lower end of the fixed biological reaction zone. The excess liquid can only flow downward from the perforated plate into the suspended bioreaction area; while the untreated gas in the suspended bioreaction area also flows upward from the perforated plate into the fixed bioreaction area, and flows down from the fixed bioreaction area The liquid often hinders the upward flow of gas
Therefore, during the spraying operation, the air pump must usually be turned off to stop the exhaust gas treatment equipment, which leads to the inability to continuously process the exhaust gas; in addition, the moisture in the suspended biological reaction zone will flow upward with the gas and be absorbed Bringing it into the fixed biological reaction area, causing water loss in the suspended biological reaction area
A large amount of water loss causes the water level in the suspended bioreaction area to drop, causing the problem that the treatment effect of hydrophilic pollutants in the exhaust gas in the suspended bioreaction area is reduced

Method used

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  • Combined biological deodorization integrated equipment and processing method of odorous gas
  • Combined biological deodorization integrated equipment and processing method of odorous gas
  • Combined biological deodorization integrated equipment and processing method of odorous gas

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] See figure 1 . The composite biological deodorization integrated equipment 22 made of plastic board has a length, width and height of 0.80m, 0.70m and 1.80m respectively, and a total volume of 1.01m 3 ; It includes a suspended bioreaction zone 3 for accommodating a solution in which bacteria and microorganisms are suspended, a fixed bioreaction zone 9 for accommodating fillers attached to fungal microorganisms, a liquid collection zone 8 and a liquid level control zone 18 .

[0044] In the inner cavity of the compound biological deodorization integrated equipment 22, there are a perforated plate 7 with a plurality of holes (the diameter of which is 3-50mm) and a partition plate 5 with holes. The perforated plate 7 with multiple holes and the partition plate 5 with holes divide the inner cavity of the composite biological deodorization integrated equipment into the suspended biological The reaction zone 3, the fixed biological reaction zone 9 for accommodating the fil...

Embodiment 2

[0054] See figure 1 . The composite biological deodorization integrated equipment 22 made of plastic boards has a length, width and height of 6.0m, 3.0m and 3.0m respectively, and an effective volume of 54m 3 . The equipment structure and the waste gas treatment method are the same as in Example 1.

[0055] The above-mentioned compound biological deodorization integrated equipment 22 is used for odor gas treatment. Operating at room temperature, the suspended biological reaction zone is filled with dilute activated sludge, filled with inorganic fillers such as gravel, ceramsite or activated carbon; or organic fillers such as bark, wood chips, compost or resin.

[0056] The mixed odor containing hydrogen sulfide and ammonia enters the composite biological deodorization integrated equipment 22 from the air inlet 2, and the residence time is 1-3mins. The intake concentrations of hydrogen sulfide and ammonia are respectively: 4.86mg / m 3 and 0.325mg / m 3 , the outlet concentr...

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Abstract

The invention relates to combined biological deodorization integrated equipment and a processing method of odorous gas. According to the invention, a liquid collecting zone is added between a floated biological reaction zone and a fixed biological reaction zone of an upward flow biological odorous gas processing device of the combined biological odorous gas processing equipment; a top part of the floated biological reaction zone has a butt joint with the liquid collecting zone; a separator is arranged between the floated biological reaction zone and the liquid collecting zone; a side wall of the liquid collecting zone is provided with water outlets, and the top part of the liquid collecting zone has a butt joint with the fixed biological reaction zone; a perforated plate is arranged between the liquid collecting zone and the fixed biological reaction zone; more than two vent pipes, which are arranged in the inner liquid collecting zone, communicate with the floated biological reaction zone; a liquid level control zone is added on the outer floated biological reaction zone; and a side wall of the liquid level control zone is provided with the vent pipes. The equipment not only reserves advantages of the combined biological odorous gas processing equipment, but also has a uniform gas distribution, can effectively collect liquids and control the liquid level, and allows spraying and gas processing to be carried out simultaneously.

Description

technical field [0001] The invention belongs to equipment for treating waste gas by using a bioreactor, in particular to a composite biological deodorization integrated equipment and a treatment method for odorous gas. Background technique [0002] During the process of sewage, sludge treatment, garbage treatment and composting, a large amount of odorous gas will be produced. The odorous substances in the odorous gas include hydrogen sulfide, ammonia, and volatile organic pollutants. 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 is attracting people's attention, and many countries have established strict emission standards. Strictly control the discharge of pollutants in exhaust gas, and require enterprises to take corresponding control measures before discharging pollutants. The national "O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/84B01D53/85
CPCY02A50/20
Inventor 李琳刘俊新郭雪松
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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