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

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

Inactive Publication Date: 2007-08-29
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 it is impossible to ensure the formation of a good biofilm. At the same time, the influence of the mixed liquor slu

Method used

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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 embodiment one: (referring to Fig. 1) present embodiment consists of water inlet pipe 1, water inlet pump 2, suction pump 7, water outlet pipe 9, air blower 12, mud discharge pump 13, perforated water distribution pipe 14, perforated aeration pipe 15, The biochemical reactor 16, the solid-liquid separation membrane module 17, the first bubble-free aerated biofilm module 18, the air inlet pipe 19 and the aeration connecting pipe 20 are composed of the solid-liquid separation membrane module 17 and the first bubble-free aerated biofilm The components 18 are vertically arranged in the biochemical reactor 16 respectively, the solid-liquid separation membrane component 17 and the first bubble-free aerated biofilm component 18 are parallel to each other, the solid-liquid separation membrane component 17 is connected with the outlet pipe 9, and the suction pump 7 Connected in series on the water outlet pipe 9, the perforated water distribution pipe 14 and the perforate...

specific Embodiment approach 2

[0008] Specific embodiment two: (see Fig. 1) The difference between this embodiment and specific embodiment one is that a second non-bubble aerated biofilm assembly 21 is added in the biochemical reactor 16, and the second non-bubble aerated biological The membrane module 21 is arranged in the biochemical reactor 16 and arranged symmetrically with the first bubble-free aerated biofilm module 18 . Other compositions and connections are the same as in the first embodiment.

specific Embodiment approach 3

[0009] Specific embodiment three: (see Fig. 1) the upper ends of the solid-liquid separation membrane module 17, the first bubble-free aerated biofilm module 18 and the second bubble-free aerated biofilm module 21 of this embodiment are respectively lower than the biochemical reactor 16 The inner water surface is 30-40 cm. Other compositions and connections are the same as those 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 invention relates to a membrane bioreactor. Background technique [0002] Membrane bioreactor (MBR for short) is a new and efficient sewage treatment technology that combines membrane separation technology with traditional biological treatment processes. 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 treating high-concentration refractory organic matter. waste water. [0003] Membrane fouling has always been an important factor restricting the development of membrane bioreactors. Membrane bioreactors need to maintain a high concentration of mixed liquid suspended solids (MLSS), but high sludge concentrations will increase the fouling speed of membrane bioreactors. Many studies have adopted the method of placing fillers i...

Claims

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Application Information

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IPC IPC(8): C02F3/12C02F3/20C02F3/10
CPCY02W10/10
Inventor 李正祁佩时姜虹
Owner HARBIN INST OF TECH
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