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Bio-carbon-fiber flat membrane component and sewage treatment reactor

A technology of sewage treatment and membrane bioreaction tank, which is applied in the direction of biological water/sewage treatment, sustainable biological treatment, water/sludge/sewage treatment, etc., and can solve the problem of increased operating costs and treatment costs of the MBR process, hindering the MBR process Rapid development and other issues, to achieve excellent biocompatibility, reasonable pore size distribution, and improve the effect of membrane fouling

Inactive Publication Date: 2012-06-13
BEIJING UNIV OF CHEM TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Membrane fouling has become an important factor affecting the effect of water treatment, and has become a restrictive factor hindering the rapid development of the MBR process. At the same time, the increase in the cost of membrane fouling treatment has also resulted in an increase in the operating cost of the MBR process.

Method used

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  • Bio-carbon-fiber flat membrane component and sewage treatment reactor
  • Bio-carbon-fiber flat membrane component and sewage treatment reactor
  • Bio-carbon-fiber flat membrane component and sewage treatment reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] Raw materials: polyacrylonitrile fiber mat with a thickness of 0.5mm (the problem is the same as P47650), polypropylene fiber filaments with a diameter of 200D, and polypropylene fiber filaments and polyester fiber filaments with a diameter of 150D (manufacturing company: Changzhou Bangguan Chemical Co., Ltd.); filter The membrane is polyvinylidene fluoride (PVDF)

[0067] Preparation:

[0068] After the polyacrylonitrile fiber mat is gradually heated to 200°C at a rate of 3°C / min, pre-oxidation treatment is carried out for 50 minutes to form pre-oxidized filaments; the pre-oxidized filaments are gradually heated at a rate of 10°C / min under a nitrogen atmosphere. After heating up to 700°C, use water vapor as an activating agent for 30 minutes of carbonization and activation treatment to form bioactive carbon fibers.

[0069] The biologically active carbon fibers are treated with ultrasonic waves with a frequency of 50KHz for 10 minutes in a mixed solution formed by mix...

Embodiment 2

[0073] Raw materials: viscose fiber, polypropylene fiber yarn with a diameter of 300D, and polypropylene fiber yarn and polyester fiber yarn with a diameter of 300D (production company: Anshan Sainoda Carbon Fiber Co., Ltd.). The filter membrane is polyvinylidene fluoride (PVDF).

[0074] Preparation:

[0075] After the viscose fiber is gradually heated up to 250°C at a rate of 4°C / min, it is pre-oxidized for 100 minutes to form a pre-oxidized yarn; the pre-oxidized yarn is gradually heated up to 20°C / min in a nitrogen atmosphere After 750°C, use water vapor as an activating agent for 60 minutes of carbonization and activation treatment to form bioactive carbon fibers.

[0076] The biologically active carbon fiber is treated with a frequency of 80KHz in a hydrogen peroxide solution with a concentration of 30% for 30 minutes to perform the first surface active treatment; In the 25% ammonia solution, the ultrasonic wave with a frequency of 80KHz was used for 30 minutes to perf...

Embodiment 3

[0081] Raw materials: pitch fiber prepared by blowing method, polypropylene fiber filament with a diameter of 300D, and polypropylene fiber filament and polyester fiber filament with a diameter of 300D (manufacturing company: Anshan Sainoda Carbon Fiber Co., Ltd.). The filter membrane is polyvinylidene fluoride (PVDF).

[0082] Preparation:

[0083] After the pitch fiber is gradually heated up to 250°C at a rate of 4°C / min, it is pre-oxidized for 100 minutes to form a pre-oxidized wire; the pre-oxidized wire is gradually heated up to 750°C at a rate of 20°C / min in a nitrogen atmosphere. ℃, using water vapor as an activating agent to perform carbonization and activation treatment for 60 minutes to form bioactive carbon fibers.

[0084] The biologically active carbon fiber is treated with a frequency of 80KHz in a hydrogen peroxide solution with a concentration of 30% for 30 minutes to perform the first surface active treatment; In the 25% ammonia solution, the ultrasonic wave...

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Abstract

The invention provides a bio-carbon-fiber flat membrane component and a sewage treatment reactor, wherein the bio-carbon-fiber flat membrane component comprises a substrate, a bio-carbon-fiber composite material and a filtering membrane; the bio-carbon-fiber composite material is arranged on the substrate; and the filtering membrane is arranged on one side, far away from the substrate, of the bio-carbon-fiber composite material. According to the bio-carbon-fiber flat membrane component, the filtering membrane and the bio-carbon-fiber composite material are reasonably combined together, sewage is firstly filtered by the filtering membrane and then is further absorbed and purified by the bio-carbon-fiber composite material, so that the purity and cleanness of clean water are further improved, and the stain resistance, membrane flux and service life of the flat membrane component are improved.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a biological carbon fiber flat membrane module and a sewage treatment reactor comprising the same. Background technique [0002] The MBR process, also known as Membrane Bio-reactor (Membrane Bio-reactor), is a new type of water treatment technology that combines modern membrane separation technology and biotechnology. Molecular organic matter is intercepted to achieve the purpose of water purification. [0003] Membrane bioreactor (membrane bioreactor, MBR) is a combination of high-efficiency membrane separation technology and traditional activated sludge method, which can trap almost all microorganisms in the bioreactor, which increases the concentration of biological sludge in the reactor. The sludge age can be infinitely long, so that the content of organic pollutants in the effluent can be minimized, and ammonia nitrogen can be effectively removed, and it is also very effecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/08C02F3/12C02F3/10
CPCY02W10/10
Inventor 海热提·吐尔逊何一群赵东林周晓东
Owner BEIJING UNIV OF CHEM TECH
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