Two-phase two-period anaerobic organism reactor for processing wastewater

A bioreactor and wastewater treatment technology, applied in the field of anaerobic reactors, can solve problems such as long start-up time, difficulty in maintaining high-efficiency lifting, and blockage of gas collection tanks, so as to increase the lifting force of internal circulation and avoid channel flow and short flow , Reduce the effect of hydraulic shear force

Active Publication Date: 2012-07-25
SOUTH CHINA UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some problems in this type of improved anaerobic reactor, including: (1) Granular sludge is easy to foul when treating wastewater containing suspended solids, calcium, magnesium, etc., resulting in reactor blockage and a sharp drop in treatment efficiency. Re-add activated sludge after shutdown and cleaning
(2) It is difficult to form an internal circulation when starting, and the starting time is long, and a large amount of floating mud is easy to accumulate under the gas collecting tank, which blocks the gas collecting tank, maki

Method used

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  • Two-phase two-period anaerobic organism reactor for processing wastewater
  • Two-phase two-period anaerobic organism reactor for processing wastewater
  • Two-phase two-period anaerobic organism reactor for processing wastewater

Examples

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Effect test

Embodiment 1

[0034] like figure 1 As shown, a two-phase two-stage anaerobic bioreactor for treating wastewater includes a reactor body 1, a circulating water tank 7 and an alkali adding device 8; the reactor body 1 is a hollow cylinder structure, and the reactor body 1 A water distributor 2 is provided at the bottom, a gas-liquid separator 6 is provided at the top of the reactor body 1, and a biological phase separator 3, a first-stage three-phase separator 4, a second-stage three-phase separator, and a second-stage three-phase separator are sequentially arranged in the reactor body 1 from bottom to top. A phase separator 5, the lower part of the reactor body 1 is provided with a sealed acidification reaction chamber 11, the height-to-diameter ratio of the acidification reaction chamber 11 is 1:1, and the biological phase separator 3 is arranged in the acidification reaction chamber 11; A methanogenic main reaction zone 12 is formed between the upper part of the acidification reaction cham...

Embodiment 2

[0045] The difference between this embodiment and embodiment 1 is:

[0046] like Figure 2c As shown, the two water distribution pipes 202 are not in the same vertical plane, and the water outlets of the water distribution pipes 204 on the two water distribution pipes 202 are in opposite directions, and they are arranged on both sides of the central axis of the cylinder and on the horizontal plane. At the midpoint of the radius of the circumference, so that the water outlet directions of the two water distribution and drainage pipes 202 are in the same clockwise direction.

Embodiment 3

[0048] The difference between this embodiment and embodiment 1 is:

[0049] like Figure 4c As shown, the cross-sectional shape of the sludge collection tank 403 is trapezoidal, and only one baffle plate is provided at the return joint between the gas collecting hoods, and the angle of the baffle plate is horizontal. A sludge collection tank 403 is provided below each gas collecting hood 401 .

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Abstract

The invention discloses a two-phase tow-period anaerobic organism reactor processing wastewater. The reactor comprises a reactor body, a circulation tank, an alkali adding device, a biological phase separator, a primary three-phase separator and a secondary three-phase separator, wherein the circulation water tank and the alkali adding device are arranged on the outer side of the reactor body, and the biological phase separator, the primary three-phase separator and the secondary three-phase separator are arranged in the reactor body from bottom to top, a closed acidification reaction chamberis arranged at the lower part of the reactor body, and the biological phase separator is arranged at the top in the acidification reaction chamber; a methane-generating main reaction area is formed between the upper part of the acidification reaction chamber and the primary three-phase separator, and a methane-generating fine processing area is formed between the primary three-phase separator andthe secondary three-phase separator. The anaerobic organism reactor provided by the invention has the advantages that the structure is compact, the occupying area is small, the organic load reaches to 40kg COD (chemical oxygen demand)/(m<3>.d) when the reactor is used for processing high-concentration wastewater generated by pulping and paper making or similar wastewater, and the stability and the flexibility are extremely high when the reactor is used for processing wastewater with variable water quantity and water quality.

Description

technical field [0001] The invention relates to an anaerobic reactor, in particular to a two-phase two-stage anaerobic bioreactor for treating waste water. Background technique [0002] Anaerobic biological treatment technology is one of the important technologies in organic wastewater treatment. The anaerobic reactor is the core of anaerobic biological treatment technology. Traditional anaerobic reactors include UASB, anaerobic filter bed, anaerobic fluidized bed, etc. At present, these anaerobic reactors are widely used in the wastewater treatment industry, but they often suffer from low organic load, can not withstand large impact load, poor operation stability, easy to block the filter bed, easy to lose sludge, and the reactor volume Large, difficult to maintain and other disadvantages. The IC anaerobic reactor and EGSB anaerobic reactor developed in recent years have made some breakthroughs and solved some problems on UASB, including: (1) Strengthening mud-water tran...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/28
CPCY02E50/30
Inventor 万金泉马邕文王艳陈云黄明智
Owner SOUTH CHINA UNIV OF TECH
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