Novel deodorization process for high-standard control of sewage plant odor

A sewage treatment plant, odor technology, applied in gas treatment, air quality improvement, membrane technology, etc., can solve the problems of large differences in odor components, high land occupation and construction costs, complex process flow, etc.

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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: 1) The technological process is too complicated
Generally, the combination of bio-trickling and bio-filtration is rarely used for odor treatment in sewage plants, and the land occupation and construction costs are too high
[0006] In addition, the treatment objects of the two prior art patents are not aimed at the odor of sewage plants, but in fact the odor components of different pollution sources are very different

Method used

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  • Novel deodorization process for high-standard control of sewage plant odor
  • Novel deodorization process for high-standard control of sewage plant odor
  • Novel deodorization process for high-standard control of sewage plant odor

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Embodiment 1

[0030] see figure 1 combined process flow chart. The area circled by the thick solid line in the figure is the "biological trickling filter-vacuum ultraviolet / catalysis" high-efficiency deodorization process proposed by the present invention, and the range circled by the thin dotted line is the traditional single biological trickling filter tower. Depend on figure 1 It can be seen that the combined process is installed in the deodorization system of the sewage plant.

[0031] The processing flow of the process is:

[0032] The negative pressure of the odor is sucked into the pretreatment water washing system through the air induction pipe to remove the dust, impurity particles, etc., and then successively remove hydrogen sulfide, ammonia, Low-concentration pollutants such as methyl mercaptan and methyl sulfide are discharged into the environment after passing through the ozone destruction device and negative ion generator to remove residual ozone and replenish negative ions...

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Abstract

The invention belongs to the technical field of sewage treatment, and particularly provides a novel deodorization process for high-standard control of sewage plant odor. A ''biotrickling-vacuum ultraviolet/catalysis'' combined process is adopted to realize efficient removal of low-concentration hydrogen sulfide, ammonia, methyl mercaptan and dimethyl sulfide in the sewage plant odor. The process is simple, low in cost and beneficial to industrial application.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and specifically provides a novel deodorization process for high-standard control of odor in sewage plants. Background technique [0002] At present, the odor control of urban sewage plants implements the "Pollutant Discharge Standards for Urban Sewage Treatment Plants", and the main odor-causing pollutants to be controlled are hydrogen sulfide and ammonia. Generally, hydrogen sulfide and ammonia can be effectively removed by using a biological trickling filter tower, but it is difficult to remove methyl mercaptan and methyl sulfide, which are low in concentration and strong in odor, resulting in poor overall deodorization effect. Although methyl mercaptan and methyl sulfide have been included in the "Discharge Standards for Odor Pollutants", they have not been included in the odor control standards for sewage plants. In recent years, Shanghai, Tianjin and other cities have begun to add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/48B01D53/52B01D53/58B01D53/84B01D53/86
CPCB01D53/007B01D53/32B01D53/48B01D53/52B01D53/58B01D53/84B01D53/8603B01D53/8612B01D53/8634B01D2257/106B01D2257/306B01D2259/804Y02A50/20
Inventor 王宏杰董文艺徐金宝
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