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Composite membrane bioreactor

A membrane bioreactor, biological reaction tank technology, applied in sustainable biological treatment, biological water/sewage treatment, chemical instruments and methods, etc. Ideal and other issues, to achieve the effect of optimizing hydraulic conditions, saving energy consumption for aeration, and reducing decarbonization load

Inactive Publication Date: 2006-06-14
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention provides a composite membrane bioreactor with wide application range, low operating energy consumption, compact structure, stable treatment effect, and simultaneous decarburization, nitrogen, and phosphorus removal. Problems such as high operating energy consumption, easy pollution of the membrane surface and unsatisfactory total nitrogen treatment effect

Method used

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  • Composite membrane bioreactor
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specific Embodiment approach

[0019] The specific implementation method is: the sewage enters the anoxic zone, and under the anoxic environment, by contacting with the microorganisms attached to the biofilm of the packing layer (3) in the anoxic zone, the organic matter is initially degraded, and then the water flows from the compartment deflector ( 4) The lower part enters the aerobic zone, and then the organic pollutants in the water are further treated through the filler (6) in the aerobic zone, and the muddy water entering the membrane module is pre-filtered, and part of the water entering the membrane module is pumped The pump (16) or relies on the gravity head pressure to draw water out of the membrane box (10), and the other part circulates inside and outside the membrane box or flows back into the anoxic zone. When the pressure difference between the inside and outside of the diaphragm rises significantly, the water outlet is stopped, and the online liquid cleaning is carried out according to the pr...

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Abstract

The present invention relates to sewage treatment equipment in the concrete, it is a composite membrane biological reactor capable of simultaneously removing carbon, nitrogen and phosphorus and having good treatment effect. It is characterized by that the reactor can be divided into anoxybiotic zone and aerobic zone by means of baffle plate, in said two zones the filling material is held respectively, the aerobic zone is divided into upper and lower two portions, the membrane box is placed in the upper portion of aerobic zone, the mixed liquor of aerobic zone is passed through air stripping device and back-flowed into anoxybiotic zone.

Description

technical field [0001] The invention belongs to a sewage advanced treatment equipment in a water treatment device, in particular to a composite membrane bioreactor. Background technique [0002] Membrane bioreactor is composed of two parts: bioreactor and membrane module. The well-known integrated membrane bioreactor is to immerse the membrane module directly in the bioreactor, and separate the membrane by microfiltration or ultrafiltration to make the activity Sludge particles and most microorganisms remain in the bioreactor, and the clear liquid after membrane separation is pumped out by a self-priming pump, so the reactor can have a higher sludge concentration. Compared with the traditional sewage treatment method, it occupies a small area, the effluent water quality is stable, and the biological safety is high. [0003] Because the activated sludge mixture directly contacts the membrane surface in the integrated membrane bioreactor, the concentration gradient phenomenon...

Claims

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Application Information

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IPC IPC(8): C02F1/44C02F3/10C02F3/30
CPCY02W10/10
Inventor 杨建州张帆远航曾景海
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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