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Fixed bed MBR (membrane bioreactor) device

A technology of fixed bed and equipment, which is applied in the direction of sustainable biological treatment, water/sludge/sewage treatment, biological water/sewage treatment, etc. It can solve the problems of restricting the application and promotion of MBR technology, unfavorable continuous operation of the system, and high energy consumption in operation. problems, to achieve the effect of increasing the effective treatment time of sewage, significant treatment effect, and low energy consumption

Inactive Publication Date: 2017-03-22
邵俊轩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two problems with this configuration method: one is the large aeration volume and high energy consumption for operation; the other is that the sewage entering the front and back is mixed together, which is not conducive to the continuous operation of the system
These two problems seriously restrict the application and popularization of MBR technology.

Method used

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  • Fixed bed MBR (membrane bioreactor) device

Examples

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Comparison scheme
Effect test

Embodiment 1

[0027] figure 1 It is a schematic diagram of the main body structure of Embodiment 1 of the present invention. This fixed-bed MBR equipment is made of stainless steel, including aeration tank 1, transition tank 2, membrane separation tank 3, and other components and facilities not shown in the figure that can ensure the operation of the equipment. The size of the main body of the equipment is 1.3 m in length, 0.3 m in width and 1 m in height, of which aeration tank 1 is 0.25 m long, transition tank 2 is 0.75 m long, and membrane separation tank 3 is 0.3 m long. The equipment is small and compact, suitable for sewage treatment and reuse of household users.

[0028] In this example, a sewage inlet 11 and an aeration device 12 are arranged in the aeration tank 1 . The aeration device 12 is composed of a flat ceramic separation membrane with a hollow structure, and the pore diameter of the ceramic separation membrane is 1-5 μm. The sewage inlet 11 is located above the aeration ...

Embodiment 2

[0037] The main body of this embodiment is the same as that of Example 1, except that the porous material in the transition tank is honeycomb ceramics. The honeycomb ceramic is a cube with a side length of 200 mm, the channel is a square with a side length of 3 mm, and micropores of about 1 μm are distributed on the hole wall. The honeycomb ceramics are stacked in the transition pool in a dislocation arrangement, and the sewage flows through the channels. Because honeycomb ceramics are hard and non-deformable, microorganisms can stably attach and proliferate on the pore walls.

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Abstract

The invention discloses a fixed bed MBR (membrane bioreactor) device which is applicable to the fields of sewage treatment, sewage recycling and the like. The MBR device is composed of an aeration tank, a transition tank, a membrane separation tank, and other assemblies and facilities required by the operation of the device. A fixed porous material used as a microbial carrier is installed in at least one of the aeration tank, transition tank and membrane separation tank (three biochemical reaction tanks), thereby forming the biological fixed bed. The MBR device disclosed by the invention has the characteristics of compact structure, flexible technique, high biochemical reaction efficiency, low operation energy consumption and the like, can obviously accelerate biodegradability of nondegradable organic pollutants, and is suitable for manufacturing minitype integrated sewage treatment devices and also suitable for application in large-scale sewage treatment.

Description

technical field [0001] The invention relates to the field of sewage treatment and sewage reuse, in particular to an MBR device. Background technique [0002] Membrane Bio-Reactor (MBR) is a sewage treatment system that combines membrane separation technology with biological treatment technology. Replacing the terminal secondary sedimentation tank of traditional biological treatment technology with membrane modules not only reduces the project footprint, but also maintains a high concentration of active sludge in the bioreactor, improving the system's ability to handle organic loads. At the same time, due to the interception of the separation membrane, microorganisms with a long generation cycle, such as nitrifying bacteria, can fully reproduce in the system, so the nitrification effect of the MBR system is remarkable. [0003] The MBR system is widely applicable to the daily sewage treatment of scattered users such as living quarters, hotels, resorts, schools, office buildi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/12
CPCC02F3/1268Y02W10/10
Inventor 邵俊轩席红安
Owner 邵俊轩
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