Automatic aeration-type biological membrane transfer device

A technology of automatic oxygenation and biofilm transfer, applied in the field of wastewater treatment, can solve the problems of low COD pollution load of pure oxygen aeration, unsatisfactory wastewater biochemical treatment effect, and the process has not been completely solved, etc. Good dehydration performance and the effect of increasing residence time

Active Publication Date: 2013-08-21
SCIMEE TECH & SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing technical conditions have adopted technical means and devices such as pure oxygen detonation gas and biological fluidized bed, but these existing technical means and devices also have deficiencies, such as biological fluidized bed has higher requirements for oxygen supply, and technically It has not been completely solved; the COD pollution load of pure oxygen aeration is low, which is not ideal for the biochemical treatment of wastewater

Method used

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  • Automatic aeration-type biological membrane transfer device
  • Automatic aeration-type biological membrane transfer device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Domestic sewage in a residential area, the treatment scale is 200m 3 / d, influent COD is 185mg / L, SS is 70mg / L, TP is 3mg / L, NH 3 -N is 30mg / L. The grid is used to remove slag, the adjustment tank is homogeneous, and the sewage flows into the automatic oxygenation type bio-transfer film device of the present invention after the hydraulic retention time is 7h. The hydraulic retention time is HRT=1.5h, and the post-treatment adopts the form of inclined tube precipitation and ozone sterilization . The effluent COD is 60mg / L, SS is 20mg / L, TP is 1mg / L, NH 3 -N is 12 mg / L. COD removal rate was 68%, SS removal rate was 71%, TP removal rate was 67%, NH 3 -N removal rate is 60%. The effluent indicators of the system meet the first-level discharge requirements of the "Pollutant Discharge Standards for Urban Sewage Treatment Plants" (GB18918-2002).

Embodiment 2

[0036] Domestic sewage (septic tank) of an administrative office building, the treatment scale is 150L / d, the influent COD is 132mg / L, SS is 50mg / L, TP is 2.5mg / L, NH 3 -N is 35mg / L. After being homogenized in the regulating tank, the sewage flows into the automatic oxygenation type bio-transfer film device of the present invention after the hydraulic retention time is 6h, and the hydraulic retention time is HRT=2h, and the post-treatment adopts the form of advection sedimentation and chlorine dioxide sterilization. The effluent COD is 40mg / L, SS is 10mg / L, TP is 0.5mg / L, NH 3 -N is 10 mg / L. COD removal rate is 70%, SS removal rate is 80%, TP removal rate is 80%, NH 3 -N removal rate was 71%. The effluent index of the system complies with the "Pollutant Discharge Standards for Urban Sewage Treatment Plants".

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Abstract

The invention belongs to the field of wastewater treatment, and particularly relates to an automatic aeration-type biological membrane transfer device. The automatic aeration-type biological membrane transfer device disclosed by the invention comprises a water channel, a water inlet, a sludge outlet, and a water outlet, wherein the water inlet and the water outlet are located at the lower side of the center line of a spindle, and distributed in a diagonal line on the water channel; the water inlet, the sludge outlet and the water outlet are arranged at different sides of the water channel; the device also comprises a rotating ring; the rotating ring is arranged inside the water channel through a rotating shaft; and the rotating ring is connected with a drive device. The automatic aeration-type biological membrane transfer device adopts a form of the rotating ring, drives the rotating ring to rotate by virtue of rotation of the rotating shaft, alternatively and fully contacts the air and sewage, and carries out oxygen transfer and mass transfer movement. The automatic aeration-type biological membrane transfer device is integrated with the characteristics of large hang membrane area of an elastic solid filler, high processing load, strong impact resistance and the like, and has the advantages of being simple in structure of a biological turntable, low in construction cost, simple to run and maintain, and the like.

Description

technical field [0001] The invention belongs to the field of waste water treatment, in particular to an automatic oxygenation type biological transfer membrane device. Background technique [0002] The efficiency of wastewater biochemical treatment is closely related to the number of microorganisms in the treatment device, saturated dissolved oxygen concentration in water, and microbial activity. Wastewater biochemical treatment device has become a widely used wastewater treatment method and technical device. Existing technical conditions have adopted technical means and devices such as pure oxygen detonation gas and biological fluidized bed, but these existing technical means and devices also have deficiencies, such as biological fluidized bed has higher requirements for oxygen supply, and technically It has not been completely resolved; the COD pollution load of pure oxygen aeration is low, which is not ideal for the biochemical treatment of wastewater. [0003] Biofilm m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 易洋肖波王吉白胡尚英佟思翰
Owner SCIMEE TECH & SCI CO LTD
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