Biological rotary disk device having filtration cavity

A biological turntable and filtration chamber technology, applied in sustainable biological treatment, ultrafiltration, semi-permeable membrane separation, etc., can solve the problems of many system processes, high cost, low efficiency, etc., and achieve high oxygenation efficiency and stable solid-liquid The effect of the separation effect

Inactive Publication Date: 2005-03-09
UNIV OF SCI & TECH OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing biological turntable itself has no solid-liquid separation function. After the biological turntable completes the biochemical reaction, it needs ad

Method used

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  • Biological rotary disk device having filtration cavity
  • Biological rotary disk device having filtration cavity

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Effect test

Embodiment 1

[0016] Embodiment 1: Apply the present invention to treat urban sewage.

[0017] In this embodiment, a biodegradable plastic net with a pore size of 0.5 mm is used as the filter membrane material, such as figure 1 The rotating biofilm device shown in work, 1 is the filter membrane, 2 is the cavity composed of two filter membranes, 3 is the cavity support, 4 is the main shaft of the rotary biofilm device, one end is closed, the other end is open, 5 The small hole for passing water that the main shaft opens in the cavity, and 7 is an air cup installed on the filter cavity. 6 is the water level of the reaction tank, 8 is the reaction tank, 9 is the aeration pipe, arranged at the bottom of the reaction tank, 10 is the base, the base is in the reaction tank, the base is equipped with a bearing seat and a bearing 11, and the main shaft 5 of the rotating biofilm device 12 The two ends of the two ends are placed in the bearing, and the bearing seat at the open end of the main shaft i...

Embodiment 2

[0018] Embodiment 2: Apply the present invention to treat urban sewage.

[0019] In this embodiment, the same rotating biofilm device as in Embodiment 1 is used, wherein the filter membrane is selected as a nylon mesh with a mesh aperture of 0.1 mm, the reaction tank is an oxidation ditch, and the operating parameters of the oxidation ditch are: the concentration of the mixed liquid suspended sludge is 8000-9000mg / l, the hydraulic retention time is 5 hours, the sludge retention time is 25 days, the average dissolved oxygen concentration is controlled at 1-2mg / l, the influent water quality is at COD200-400mg / l, and the suspended solids are at 100- 200mg / l, completely submerge the rotating biofilm device under water. Implementation effect: the effluent water quality is 30-50mg / lCOD, and the concentration of suspended solids is controlled below 3mg / l.

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Abstract

A biological rotary disk apparatus (rotary biomembrane apparatus) with filter cavity for biochemical reaction and solid-liquid separation is composed of a rotary tubular axle with bearings and bearing holders at its both ends and drive unit. A filter cavity formed by filtering membrane made of porous material is installed onto said rotary tubular axle with holes to make the axle pass through the filter cavity.

Description

Technical field: [0001] The invention belongs to the solid-liquid separation technology and biochemical reaction technology in the field of biochemical industry, and particularly relates to a device capable of carrying out biochemical reaction and solid-liquid separation at the same time. Background technique: [0002] Patent CN1363526A reports a method and device for filtering the mixed liquid of a bioreactor. It is a filter membrane formed by a porous filter substrate, and the dynamic membrane filter assembly that seals the cavity and the water outlet is placed on the liquid surface in the bioreactor. Bottom; the water outlet of the filter module unit is connected with the water outlet of the bioreactor. Microbes will form a biofilm on the filter membrane, and driven by the pressure difference between the water level of the reactor and the water level of the outlet well, the mixed solution will filter out the water through the biofilm. Because the device is statically ins...

Claims

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Application Information

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IPC IPC(8): B01D61/16B01D69/04C02F3/02
CPCY02W10/10
Inventor 黄卫东陶明清储冬曙
Owner UNIV OF SCI & TECH OF CHINA
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