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Preparation and application of bioactive carrier of carbon fiber composite polyurethane

A composite polyurethane and biologically active technology, which is applied in the preparation and application of the carrier, can solve problems that have not been seen yet, and achieve the effects of fast immobilization and domestication, fast start-up, and large microbial load

Inactive Publication Date: 2006-09-27
LANZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, there have been no research reports on activated carbon fiber directly used as a microbial immobilization carrier, and activated carbon fiber reinforced polyurethane foam carrier and its immobilized microorganisms for wastewater treatment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1, the preparation of carbon fiber composite polyurethane bioactive carrier

[0029] ① Preparation of microbial culture medium: mix dried flour, blood meal, and bone meal in a weight ratio of 55% flour, 30% blood meal, and 15% bone meal, sieve, and control the particle size below 0.1mm;

[0030] ②Surface modification of activated carbon fibers: Process activated carbon fibers to 2-5mm short whiskers, soak in 60-68% nitric acid solution for 2 hours, wash with distilled water until neutral, and dry;

[0031] ③ Preparation of carbon fiber composite bioactive polyurethane functionalized carrier: first mix 70 parts of polyether 330 and 2.0 parts of microbial culture medium according to the weight ratio, and mechanically stir at 20-24 °C for 5-10 minutes to obtain component 1; Mix 30 parts of toluene diisocyanate and 2.0 parts of modified activated carbon fiber in parts by weight, and stir for 3 to 5 minutes to obtain component 2; in parts by weight, mix 0.4 parts ...

Embodiment 2

[0033] Embodiment 2, the preparation of carbon fiber composite polyurethane bioactive carrier:

[0034] ① Preparation of microbial culture medium: mix the dried flour, blood meal, and bone meal in a weight ratio of 65% flour, 25% blood meal, and 10% bone meal, sieve, and control the particle size below 0.1mm;

[0035] ②Surface modification of activated carbon fibers: Process activated carbon fibers to 2-5mm short whiskers, soak in 60-68% nitric acid solution for 3 hours, wash with distilled water until neutral, and dry;

[0036] ③ Preparation of carbon fiber composite bioactive polyurethane functionalized carrier: first mix 75 parts of polyether 330 and 1.0 part of microbial culture medium according to the weight ratio, and mechanically stir at 20-24 °C for 5-10 minutes to obtain component 1; Mix 25 parts of toluene diisocyanate and 5.0 parts of modified activated carbon fiber in parts by weight, and stir for 3 to 5 minutes to obtain component 2; Paraffin wax, 1 part of stann...

Embodiment 3

[0038] Embodiment 3, the preparation of carbon fiber composite polyurethane bioactive carrier

[0039] ① Preparation of microbial culture medium: mix dried flour, blood meal, and bone meal in a weight ratio of 60% flour, 28% blood meal, and 12% bone meal, sieve, and control the particle size below 0.1mm;

[0040]②Surface modification of activated carbon fibers: Process activated carbon fibers to 2-5mm short whiskers, soak in 60-68% nitric acid solution for 3 hours, wash with distilled water until neutral, and dry;

[0041] ③ Preparation of carbon fiber composite bioactive polyurethane functionalized carrier: first mix 70-75 parts of polyether 330 and 1.5 parts of microbial culture medium according to the weight ratio, and mechanically stir at 20-24 °C for 5-10 minutes to obtain component 1 ; Mix 28 parts of toluene diisocyanate and 3.5 parts of modified activated carbon fiber in parts by weight, and stir for 3 to 5 minutes to obtain component 2; 1 part of liquid paraffin, 1 p...

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Abstract

The invention discloses a biological active carrier preparation and appliance of carbon fiber composite polyurethane, which is characterized by the following: basing on adding modified active carbon fiber and microbe culture medium in the polyurethane foam foaming course; integrating super strong adsorbability and biological affinity to be easy fixed and increasing and metabolism for microbe on the carrier; improving the moulding of superior microbe group; shortening the fixing and exercising period.

Description

technical field [0001] The invention belongs to the technology in the field of wastewater treatment, and relates to a carrier for immobilized microbial water treatment—a carbon fiber composite polyurethane bioactive carrier, and also relates to the preparation and application of the carrier. Background technique [0002] In recent years, immobilized microorganism technology has developed rapidly in wastewater treatment and other aspects, and immobilized carriers play a key role in its development. The current immobilized carrier is insufficient in biocompatibility, stability, mechanical properties, treatment effect, etc., which restricts the development of immobilized microorganism technology. Deal with one of the most important issues. [0003] Polyurethane foam carrier has been used in immobilized microorganisms and its bioenvironmental engineering due to its simple processing and molding. However, there are problems of poor biocompatibility, poor adsorption, long immobil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N11/00C02F3/10
CPCY02W10/10
Inventor 李彦锋周林成张树江拜永孝
Owner LANZHOU UNIVERSITY
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