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Integrated device for deodorization and sewage treatment in municipal sewage plant and technology thereof

A municipal sewage and sewage treatment technology, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, aerobic process treatment, etc., can solve the problem of high land quality and environmental requirements, and the treatment of odor concentration should not be too high , low maintenance and management costs, etc., to achieve the effect of low construction and operation costs, small construction volume, and reduced construction and operation costs

Inactive Publication Date: 2013-04-17
SUZHOU RES INST OF TONGJI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The soil filter is characterized by low maintenance and management costs, but occupies a large area, generally 3-5m 2 / m 3 Gas, and the concentration of odor should not be too high, the land quality and environmental requirements are high, and it is not suitable for the limited land of the existing sewage treatment plant
The advanced oxidation method represented by the plasma method and the ultraviolet photocatalytic oxidation method is characterized in that it can efficiently remove various odorous substances that are difficult to degrade, the reaction time is short, and the effect is remarkable, but the one-time investment is large and the energy consumption is high. At 60-80 W / m 3 gas

Method used

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  • Integrated device for deodorization and sewage treatment in municipal sewage plant and technology thereof

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Embodiment 1

[0033] A certain original municipal sewage treatment plant has been designed and modified, and the patent of the invention is used to achieve the functions of aeration and pumping to treat malodorous gas at the same time. The daily water treatment capacity of the sewage treatment plant is 50,000 d / t, the COD is about 300mg / L, the BOD is about 180mg / L, and the ammonia nitrogen is about 25 mg / L. The system uses UNITANK technology. The system collects the main sources of gas from the grille, aeration grit chamber and sludge dewatering machine room. The aeration grit chamber adopts a full-coverage form, and the total gas treatment capacity is about 8000m 3 / h (including ventilation volume). The designed aeration volume of the original sewage treatment plant is 9200 m 3 / h, the air volume is 162.62 m 3 There are 2 Roots blowers per min (one for use and one for standby), and the aeration equipment adopts the diaphragm microporous aeration method. In this reconstruction project, ...

Embodiment 2

[0036] Design, renovation and construction of an existing municipal sewage treatment plant. The sewage treatment plant has a water treatment capacity of 80,000 tons per day, and is designed to treat COD at 320mg / L, BOD at about 200mg / L, and ammonia nitrogen at about 30 mg / L. Adopt biological contact oxidation process to collect and treat the malodorous gas from the grid and aeration grit chamber, the total gas volume is about 13000m 3 / h (including ventilation volume). The design aeration volume of the sewage treatment plant is 16500 m 3 / h, the air volume is 143.26 m 3 There are 3 units per min (two-purpose and one standby), and the aeration equipment adopts hydraulic shear aerators. In this reconstruction project, the original blower and aeration equipment are used, and only the odor equipment collection device and conveying device are added, and the closed odor source is connected to the air inlet of the blower through pipelines. Considering that the amount of malodorou...

Embodiment 3

[0039] Design and construction of a new municipal sewage treatment plant. The sewage treatment plant has a water treatment capacity of 100,000 tons per day, and is designed to treat COD at 350mg / L, BOD at about 200mg / L, and ammonia nitrogen at 30 mg / L. The A / A / O process is used to collect and process the malodorous gas from the grille, pool A, and sludge dewatering machine room, with a total gas volume of about 17,500m 3 / h (including ventilation volume). The design aeration volume of the sewage treatment plant is 23000 m 3 / h, the air volume is 192.04 m 3 There are 3 units per min (two-purpose and one standby), and the aeration equipment adopts underwater air diffuser aeration. This system also adopts the operation mode of normally open in summer and regularly open in winter. After the construction trial operation is stable, the long-term operation data shows that the COD of the secondary effluent (average data) of the sewage treatment plant is 30-60mg / L, the ammonia nitr...

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Abstract

The invention discloses an integrated device for deodorization and sewage treatment in a municipal sewage plant. The integrated device comprises a semi-hermetic gas collection building mounted on an odor source, an air blower and an aeration tank, wherein malodorous gas is collected in the semi-hermetic gas collection building; a ventilation opening and a gas pipeline are arranged above the semi-hermetic gas collection building; the gas pipeline conveys the malodorous gas to an aeration pipeline through the air blower; and the aeration pipeline conveys the malodorous gas to the aeration tank. According to the invention, through the method, the design, operation and management of a deodorization facility can be simplified, the investment and operation cost is reduced, the various malodorous substances can be effectively processed, and the processing effect is good. An odor collection pipeline can be connected with the original blast aeration equipment, so that the amount of construction engineering is reduced, and the integrated device and the technology are very suitable for upgrading and reconstruction of deodorization of the built sewage treatment plant and the construction of the integrated deodorization facility of the newly-built sewage treatment plant.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an integrated device for deodorization and sewage treatment in a municipal sewage plant and a process thereof. Background technique [0002] In recent years, with the improvement of people's living standards and the enhancement of environmental awareness, odor pollution has become a relatively prominent environmental problem. Among them, the problem of odor pollution caused by urban sewage treatment plants is particularly prominent. At the same time, the Ministry of Environmental Protection is also considering to further implement the national standard "Discharge Standard of Odor Pollutants" (GB14554-93) and the newly revised "Discharge Standard of Pollutants for Urban Sewage Treatment Plants" (GB18918-2002) in 2002. Relevant standards for control are revised. [0003] In order to meet the odor discharge standards and reduce the impact on the surrounding environment an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/84C02F3/02C02F3/12
CPCY02A50/20Y02W10/10
Inventor 薛勇刚陈阳戴晓虎薛韵涵戴翎翎章婷婷
Owner SUZHOU RES INST OF TONGJI UNIV
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