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Integrated bubble-free aeration biological composite film film-separation biological reactor

A bioreactor, bubble-free aeration technology, applied in the direction of sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc., can solve problems such as inability to guarantee treatment effect, inability to guarantee biofilm, poor operational stability, etc. , to achieve the effect of convenient and accurate control of aeration volume, reduction of membrane fouling, and improvement of oxygen transfer efficiency

Inactive Publication Date: 2009-02-04
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the biofilm on the surface of the filler is greatly affected by the aeration system, and a good biofilm cannot be guaranteed. At the same time, the influence of the mixed liquid sludge must be taken into account. The actual operation stability is poor, and a good treatment effect cannot be guaranteed.

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  • Integrated bubble-free aeration biological composite film film-separation biological reactor

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specific Embodiment approach 1

[0007] Specific implementation one: (see figure 1 ) This embodiment consists of a water inlet pipe 1, an inlet pump 2, a suction pump 7, a water outlet pipe 9, a blower 12, a sludge discharge pump 13, a perforated water distribution pipe 14, a perforated aeration pipe 15, a biochemical reactor 16, a solid-liquid separation membrane The assembly 17, the first bubble-free aeration biofilm assembly 18, the air inlet pipe 19 and the aeration connecting pipe 20 are composed of the solid-liquid separation membrane assembly 17 and the first bubble-free aeration biofilm assembly 18, which are respectively vertically arranged in the biochemical reactor. 16. The solid-liquid separation membrane module 17 and the first bubble-free aeration biological membrane module 18 are parallel to each other. The solid-liquid separation membrane module 17 is communicated with the water outlet pipe 9, and the suction pump 7 is connected in series on the water outlet pipe 9. The water distribution pipe...

specific Embodiment approach 2

[0008] Specific implementation two: (see figure 1 ) The difference between this embodiment and the first embodiment is that a second bubble-free aeration biofilm assembly 21 is added in the biochemical reactor 16 , and the second bubble-free aeration biofilm assembly 21 is arranged in the biochemical reactor 16 Inside and symmetrically arranged with the first bubble-free aeration biofilm assembly 18 . Other components and connection relationships are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific implementation three: (see figure 1 ) In this embodiment, the upper ends of the solid-liquid separation membrane module 17 , the first bubble-free aeration biofilm module 18 and the second bubble-free aeration biofilm module 21 are respectively 30-40 cm lower than the water surface in the biochemical reactor 16 . Other compositions and connection relationships are the same as in the second embodiment.

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Abstract

The invention relates to a film separating biology reactor to realize film pollution problem. The solid and liquid separating film component and the first non-bubble aeration biology film component are set in biochemical reaction vertically. The solid and liquid separating film component and the first non-bubble aeration biology film component are paralleling. The separating film component connects to water outlet pipeline, and the suction pump connects to water outlet pipeline in series. The invention is placed with solid liquid separating film alternating. The aerator pipe and distributing pipe are set between two films. It is benefit to fully mix organic pollutant and active sludge. It could effectively solve the film pollution problem.

Description

technical field [0001] The present invention relates to a membrane bioreactor. Background technique [0002] Membrane bioreactor (MBR) is a new and efficient sewage treatment technology that combines membrane separation technology and traditional biological treatment process. Using ultrafiltration membrane or microfiltration membrane to replace the traditional secondary sedimentation tank for solid-liquid separation can realize the separation of sludge retention time (SRT) and hydraulic retention time, and allow a longer SRT, which is suitable for the treatment of high-concentration refractory organic waste water. [0003] Membrane fouling has always been an important factor restricting the development of membrane bioreactors. Membrane bioreactors need to maintain a high mixed liquid suspended solids concentration (MLSS), but a higher sludge concentration will increase the fouling speed of membrane bioreactors. , Many studies have adopted the method of placing fillers in t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12C02F3/20C02F3/10
CPCY02W10/10
Inventor 李正祁佩时王文斌姜虹
Owner HARBIN INST OF TECH
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