Preparation method for water treatment microbe immobilization carrier

A technology for immobilization of microorganisms and water treatment, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of small treatment volume, solution post-treatment, unsuitable for industrial production, etc. problems, to achieve the effect of convenient operation, less environmental pollution, and good meridian toughness

Inactive Publication Date: 2009-10-21
ENVIRONMENTAL SCI RES & DESIGN INST OF ZHEJIANG PROVINCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two methods have small processing capacity and have solution post-processing problems, so they are not suitable for industrial production.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Foaming:

[0019] 100 parts by mass of polyether polyols, 10 parts by mass of polymer polyols, 0.1 parts by mass of stannous octoate catalyst, 0.3 parts by mass of triethylenediamine catalyst, 3 parts by mass of water, 5 parts by mass of fluorotrichloromethane, 0.6 parts by mass After the B123 foam stabilizer is mixed evenly, add 45 parts by mass of toluene diisocyanate, stir evenly, pour into the mold to foam;

[0020] (2) Hole opening by explosion method:

[0021] Put the above-mentioned foam in the opening device, the device is evacuated to 0.1MPa, and then filled with H 2 to 0.1MPa, filled with O 2 To 0.2MPa, after 10 minutes of diffusion, detonate;

[0022] (3) Granulation:

[0023] Cut the product obtained from the explosion into 1cm 3 particles to obtain the finished carrier.

[0024] The above-mentioned polyether polyol grade is Voranol 3010 of Dow Chemical Company in the United States; the catalyst is stannous octoate: Hangzhou Silicon Bao Chemical Fa...

Embodiment 2

[0026] (1) Foaming:

[0027] 50 parts by mass of polyether polyol, 50 parts by mass of polymer polyol, 0.3 parts by mass of dibutyltin dilaurate catalyst, 0.5 parts by mass of diethylenetriamine amine catalyst, 9 parts by mass of water, 30 parts by mass of difluorodichloromethane, 5 parts by mass After the mass parts of L520 foam stabilizer are mixed evenly, add 60 mass parts of toluene diisocyanate, stir evenly, pour into the mold to foam;

[0028] (2) Hole opening by explosion method:

[0029] Put the above-mentioned foam in the opening device, the device is evacuated to 1MPa, and then filled with H 2 to 0.5MPa, filled with O 2 To 0.8MPa, after 30 minutes of diffusion, detonate;

[0030] (3) Granulation:

[0031] Cut the product obtained from the explosion into 3cm 3 particles to obtain the finished carrier.

Embodiment 3

[0033] (1) Foaming:

[0034] 80 parts by mass of polyether polyol, 20 parts by mass of polymer polyol, 0.15 parts by mass of dibutyltin dilaurate catalyst, 0.3 parts by mass of triethanolamine catalyst, 7 parts by mass of water, 15 parts by mass of L580 foaming aid, 2 parts by mass After the foam stabilizer is mixed evenly, add 60 parts by mass of toluene diisocyanate, stir evenly, pour into the mold to foam;

[0035] (2) Hole opening by explosion method:

[0036] Put the above-mentioned foam in the opening device, the device is evacuated to 0.2MPa, and then filled with H 2 to 0.2MPa, filled with O 2 To 0.5MPa, after 10 minutes of diffusion, detonate;

[0037] (3) Granulation:

[0038] Cut the product obtained from the explosion into 2cm 3 particles to obtain the finished carrier.

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PUM

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Abstract

The invention discloses a preparation method for a water treatment microbe immobilization carrier. The preparation method comprises the following steps: (1) foaming, namely evenly mixing 50 to 100 mass portions of polyether glycol, 10 to 50 mass portions of polymer glycol, 0.1 to 0.3 mass portion of tin catalyst, 0.1 to 0.5 mass portion of amine catalyst, 3 to 9 mass portions of water, 5 to 30 mass portions of blowing promoter and 0.6 to 5 mass portions of foam stabilizer, adding 45 to 60 mass portions of toluene diisocynate, evenly agitating the raw materials, and then pouring the mixture into a die for foaming; (2) tapping through an explosion method, namely adding the foaming materials in a tapping device, carrying out the vacuum pumping on the device to 0.1 to 1 MPa, then filling the device with H2 to 0.1 to 0.5 MPa, filling the device with O2 to 0.2 to 0.8 MPa, and detonating the gases after 10 to 30 minutes of diffusion; and (3) granulation. The method has the advantages of simple process, convenient operation, cleanness and hygiene, and difficulty in environmental pollution. The carrier is widely applied to biological reaction water treatment systems, particularly to sewage treatment systems.

Description

technical field [0001] The invention relates to a preparation method of a microorganism immobilization carrier for water treatment. Background technique [0002] Since the 19th century, Germany began to use biochemical methods for wastewater treatment, but limited to the technical level at that time, there was no suitable filler (microbial carrier), and it was not widely used. In the 1970s, the emergence of organic synthetic materials such as polyethylene and polyamide with high specific surface area and porosity made of corrugated, tubular and honeycomb organic synthetic fillers led to the rapid development of biofilm sewage treatment technology. , has now become one of the main sewage treatment methods alongside the activated sludge process. [0003] As the core of the biofilm process, microbial carriers have a direct impact on the efficiency of sewage treatment. Water treatment workers at home and abroad have been continuously researching, developing, producing and apply...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/34
CPCY02W10/10
Inventor 徐灏龙徐国华陆建海张启霞
Owner ENVIRONMENTAL SCI RES & DESIGN INST OF ZHEJIANG PROVINCE
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