Microorganism-based gas deodorizing method and device

A microorganism and gas technology, which is applied to a device suitable for the method, in the field of gas deodorization based on microorganisms, can solve the problems of affecting the activity of microorganisms, affecting the deodorizing effect, and complicated operation, and achieves maintenance of activity, convenient operation and low cost. Effect

Pending Publication Date: 2018-02-27
中夏旭杰建设科技有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The malodorous odor in odor pollutants comes from ammonia, hydrogen sulfide, volatile organic compounds (VOC) and other substances. These odorous substances can be used and transformed by microorganisms to completely eliminate odor pollution. However, conventional biological deodorization methods are in operation During the operation interval, it is necessary to supplement the necessary nutrients for the microorganisms to maintain the activity of the microorganisms, which is not only cumbersome to operate, but also directly affects the activity of the microorganisms, thereby affecting the deodorization effect

Method used

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  • Microorganism-based gas deodorizing method and device
  • Microorganism-based gas deodorizing method and device
  • Microorganism-based gas deodorizing method and device

Examples

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Embodiment 1

[0026] This example relates to microbial-based gas deodorization treatments.

[0027] Such as figure 1 As shown in , the gas deodorization device based on microorganisms in this embodiment includes a controller not shown in the figure, and a primary absorption tower 1, a secondary absorption tower 2 and a chimney 3 connected in sequence, and the primary absorption tower 1 and the secondary absorption tower 2 are all provided with three layers of packing and circulating spray mechanism, and the first-level absorption tower 2 is respectively provided with the odor gas inlet 4, the first-level gas outlet 14 and the overflow port 5, and the second-level absorption tower 2 are respectively provided with a secondary air inlet 15, a secondary air outlet 16, a liquid discharge port 8, and a treatment liquid replenishment port 7, the primary air outlet 14 is connected to the secondary air inlet 15 through a pipeline, and the secondary air outlet 16 is communicated to chimney 3 places ...

Embodiment 2

[0041] This embodiment relates to the influence of control condition parameters on deodorization results in the deodorization method of the present invention.

[0042] Adopt the deodorization method of embodiment one to smelly gas (exhaust gas amount is 40000m 3 / h, the ammonia emission concentration is 400mg / m 3 , hydrogen sulfide emission concentration is 3500mg / m 3 , Methanol emission concentration is 500mg / m 3 ) for processing, condition parameters and deodorization results are shown in the following table:

[0043]

[0044] As can be seen from the results in the table above, in the deodorizing method of the present invention, the control of the pH value of the primary absorption liquid and the pH value of the secondary absorption liquid, the control of the condition parameters such as the gas-liquid ratio in the absorption tower, and the gas superficial flow velocity are beneficial to obtain Better deodorizing effect. Among them, for the control of the pH value of ...

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Abstract

The invention discloses a microorganism-based gas deodorizing method. The method comprises the step of carrying out absorption and biotransformation treatment on an odor gas to be treated, wherein theabsorption and biotransformation treatment comprises the steps of reversely contacting the odor gas with absorption liquid which is sprayed circularly through three layers of microbial fillers, and carrying out absorption and biotransformation, and the absorption liquid is up-to-standard discharge wastewater of a sewage treatment aerobic system. By adopting the gas deodorizing method obtained bythe technical scheme of the invention, the pollution of the odor gas can be completely eliminated, nutrient substances are provided for microorganisms while the deodorizing treatment is carried out, the activity of the microorganisms in the filler layers is maintained, and simple, efficient and continuous treatment of the odor gas is realized. Meanwhile, the deodorizing device provided by the invention is more beneficial to the operation and control of deodorizing operation of the odor gas and provides convenience for production.

Description

technical field [0001] The invention relates to the technical field of gas deodorization, in particular to a microorganism-based gas deodorization method and a device suitable for the method. Background technique [0002] During the process of industrial and agricultural production, sewage treatment, garbage treatment and composting, there will be odorous substances escaping and polluting the surrounding environment. Odor pollutants refer to all gaseous substances that stimulate the olfactory organs to cause people's unpleasantness and damage the living environment. They stimulate olfactory cells through odorous groups. Generally, the concentration is low, the composition is complex, and it is difficult to monitor and treat. As a typical environmental hazard, malodorous substances have been recognized by countries all over the world. Many developed countries have studied them as a kind of public hazard and implemented special legislation to prevent and control them. The mal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01D53/85C02F3/02C02F3/28C02F103/18
CPCB01D53/75B01D53/85B01D2251/95B01D2258/02C02F3/02C02F3/28C02F2103/18Y02A50/20Y02W10/10
Inventor 王海波高全超孙斌斌樊博邹纯洁韩丽辉武冰磊樊扬扬康新乐孙俊莉牛凤虎
Owner 中夏旭杰建设科技有限公司
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