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Soil fast-filter bed system for purifying bioreactor tail gas

A bioreactor and reactor technology, applied in the direction of sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve undiscovered problems, achieve low operating costs, good effluent quality, and simple structure Effect

Active Publication Date: 2016-01-13
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Soil fast-filter bed system for purifying bioreactor tail gas
  • Soil fast-filter bed system for purifying bioreactor tail gas

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Effect test

Embodiment 1

[0017] Such as figure 1 As shown, the soil fast filter bed purification bioreactor tail gas system of the present invention includes a biological fluidized bed reactor, a water and gas transport part and a soil fast filter bed. Bioreactors include biological fluidized bed reactors and membrane bioreactors.

[0018] An aeration head 4 is installed at the bottom of the biological fluidized bed reactor 1, and the system is aerated by an air blower 3. An airtight gas collection hood 5 is installed above the reactor and the reactor is connected by a flange 6, and the joint is sealed with a rubber gasket 7, and the exhaust gas collected is aerated through the gas transmission pipeline 8, fan 9, gas distribution pipe 10 and rubber diaphragm microporous Device 11 is discharged into the soil quick filter bed. Sewage is discharged into the reactor from the water inlet after the flow is adjusted, and the effluent from the biological fluidized bed reactor 1 enters the soil rapid filter ...

Embodiment 2

[0021] Same as Example 1, the difference is that the quick soil filter bed adopts an inverted infiltration structure, such as figure 2 As shown, the soil rapid filter bed is provided with anti-seepage walls around and at the bottom, and the bottom of the soil rapid filter bed is a reservoir 22, wherein a bottom water inlet pipe 24 and a mud discharge port 23 are provided, and the upper part of the reservoir is supported by 21 supporting frames The upper matrix acts as a perforated water distribution board 20 on the supporting frame, on which the gravel layer 18, the artificial soil layer 17 and the soil layer 16 are filled in sequence. The diameter of the gravel layer filled with gravel is 2-4cm, and an air distribution pipe 10 is arranged inside. The rubber membrane microporous aerator 11 is installed under the air distribution pipe, and the tail gas of the reactor is sent to the soil quick filter bed. The artificial soil layer is filled with sandy loam. Plants 15 grow on t...

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Abstract

The invention relates to a soil fast-filter bed system for purifying bioreactor tail gas and deeply processing sewage. The system comprises a bioreactor (such as biological fluidized bed reactor, membrane bioreactor, etc.) and a soil fast-filter bed. The tail gas is collected by a gas collecting hood; then the tail gas enters the soil fast-filter bed after going through a gas pipeline, a wind turbine, a gas distribution pipe, and a micropore aerator; the effluent from the bioreactor goes through a water pipeline, a water pump, and a water distribution tank and enters the soil fast-filter bed; thus the comprehensive effect of soil, microbes, and plants in the soil fast-filter bed can be used to purify the effluent and tail gas, the operation time of the reactor is shortened, and the operation cost is reduced. The provided system can utilize and purify tail gas, can also deeply process sewage, and has the advantages of high purification efficiency and good quality of processed water.

Description

1. Technical field [0001] The invention belongs to the field of environmental protection, and relates to a system for purifying bioreactor tail gas and advanced sewage treatment by a soil rapid filter bed. 2. Background technology [0002] As the main technology of sewage treatment, bioreactor is favored for its advantages of low investment, less land occupation, and convenient operation and management. However, people pay little attention to the treatment of tail gas in the process of reactor operation. With the occurrence of a series of biochemical reactions such as the degradation of organic matter, denitrification and phosphorus removal in the reactor, a variety of toxic and harmful gases will be produced during operation. CO 2 A large amount of emissions will break the atmospheric CO 2 The balance causes the greenhouse effect, and it will also endanger human health in high concentrations. SO 2 , NO 2 、H 2 S, N 2 The discharge of O and volatile organic compounds ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F3/02C02F3/32B01D53/84B01D53/00
CPCY02A50/20Y02W10/10
Inventor 张建刘紫君张成禄谢慧君梁爽胡振王洪秀
Owner SHANDONG UNIV
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