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Biological reaction filler prepared by embedding microorganisms into microporous membrane

A biological reaction and microporous membrane technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as low activity, packing loss, clogging, etc.

Pending Publication Date: 2021-03-09
苏州达道环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned problems of blockage, filler loss and low activity caused by the use of traditional embedded fillers, the present invention provides a bioreaction filler made by embedding microorganisms into microporous membranes. This filler is directly filled with microorganisms with specific functions. In the microporous membrane (hollow fiber membrane, plate membrane and other forms of microporous membrane), the inlet and outlet of the microporous membrane are closed to form a filler embedded with microorganisms.

Method used

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  • Biological reaction filler prepared by embedding microorganisms into microporous membrane
  • Biological reaction filler prepared by embedding microorganisms into microporous membrane
  • Biological reaction filler prepared by embedding microorganisms into microporous membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1 Anti-nitrogenated bacteria was embedded in a hollow fiber membrane to produce bioreactic filler:

[0053] according to figure 1 The structure shown is embedded in a hollow fiber membrane (active sludge) containing contact with denitrifuginal. The hollow fiber membrane is made of PVDF, the inner diameter of 2 mm, the film thickness of the film is 0.5 mm, the aperture pore diameter on the outer wall is 320 nm, and the nitrogenation adhesive group (active sludge) particle size is about 400 nm (aperture and particle diameter ratio ratio) Set by the following proportion: set the average size of microporous membrane holes to D 1 , The average particle size of the bacteria colon is d. 2 Others 1 di 1 ≤ D 2 ≤n 2 di 1 Time, for the best ratio, where η 1 , Η 2 Constant, η 1 Take the value of 1.23, η 2 The value is 1.61), so that the nitroration group is wrapped by the microporous membrane will not be lost. According to the engineering application, a hollow fiber membrane i...

Embodiment 2

[0060] Example 2 Anti-nitrogenated bacteria was embedded in a hollow fiber membrane to produce bioreactic filler:

[0061] according to figure 1 The structure shown is embedded in a hollow fiber membrane (active sludge) containing contact with denitrifuginal. The hollow fiber membrane is made of PVDF, the inner diameter of 2 mm, the film thickness of the film is 0.5 mm, the aperture pore size on the outer wall is 240 nm, and the denitrification bacterial adhesive (active sludge) particle size is about 400 nm (aperture and particle size) The ratio is set in the following scale: set the average size of microporous membrane holes to D. 1 , The average particle size of the bacteria colon is d. 2 Others 1 di 1 ≤ D 2 ≤n 2 di 1 Time, for the best ratio, where η 1 , Η 2 Constant, η 1 Take the value of 1.23, η 2 The value is 1.61) so that the denitrifying bacteria is wrapped by microporous membranes. According to the engineering application, a hollow fiber membrane is selected in length, ...

Embodiment 3

[0081] Example 3 Anti-nitrogenated bacteria was embedded in a hollow fiber membrane to produce bioreactic filler:

[0082] according to figure 1 The structure shown is embedded in a hollow fiber membrane (active sludge) containing contact with denitrifuginal. The hollow fiber membrane is made of PVDF, the inner diameter is 2 mm, the film thickness of the film is 0.5 mm, the aperture pore size on the outer wall is 320 nm, and the denitrification bacteria (active sludge) particle size is about 400 nm (aperture and particle size) The ratio is set in the following scale: set the average size of microporous membrane holes to D. 1 , The average particle size of the bacteria colon is d. 2 Others 1 di 1 ≤ D 2 ≤n 2 di 1 Time, for the best ratio, where η 1 , Η 2 Constant, η 1 Take the value of 1.23, η 2 The value is 1.61) so that the denitrifying bacteria is wrapped by microporous membranes.

[0083] Substate (active sludge) was added to a neutral protease of 1 million u / g prior to use, ...

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Abstract

The invention discloses a biological reaction filler prepared by embedding microorganisms into a microporous membrane, and relates to the related technical field of biological reaction fillers in bioengineering or sewage treatment, the disclosed biological reaction filler comprises the microporous membrane and zoogloea, the microporous membrane is a hollow fiber membrane or a plate type membrane,and the zoogloea is a hollow fiber membrane or a plate type membrane. The zoogloea is embedded in an inner cavity or pores in the outer wall of the microporous membrane, the material construction andimplementation are simple, microorganisms are not lost after being wrapped by the membrane, the pores in the surface of the membrane are developed, substances inside and outside the membrane are smoothly transferred, the membrane has no toxic effect on the microorganisms, the microbial activity is high, the service life of the filler is long, due to the direct embedding of zoogloea, the microbialactivity can be quickly and durably exerted, the filler can be made into any size as required in engineering application, can be fixed in a reactor for use, does not rub and collide with each other, does not need to be provided with an intercepting net, and cannot be abraded or broken, so that the use and maintenance cost of the biological reaction filler is integrally reduced.

Description

Technical field [0001] The present invention relates to the field of biological reaction filler in biological engineering or sewage treatment, and in particular, to a bioreactive filler that is embedded in microorganisms into microporous membranes. Background technique [0002] In recent years, as people pay attention to environmental protection, the chemical methods in people's livelihood projects have been replaced by more green and environmentally friendly technologies, of which microbial technology is one of the alternatives to extensive attention, in emerging bioengineering Or the sewage treatment technology is more inseparable from microbial technology. Taking biological treatment as an example, the activated sludge method or biofilm method is generally used, and the active sludge method refers to the dispersion of the microorganism in the form of a floc (active sludge) in sewage, sludge and water receiving contact, sewage Internal nutrients transmitted in sludge, the produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34
CPCC02F3/341
Inventor 李建
Owner 苏州达道环保科技有限公司
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