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A kind of preparation method of modified perlite biological filler

A technology of biological filler and perlite, which is applied in the field of preparation of modified perlite biological filler, can solve problems such as poor removal of refractory organic matter, achieve excellent microbial film-hanging performance, simple production process, and avoid secondary pollution Effect

Inactive Publication Date: 2016-11-30
李健镇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Microbiological method is not effective for the removal of refractory organic matter

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1), preparation of modified liquid (by weight):

[0043] N-methylolacrylamide 40

[0044] 3-Chloro-2-hydroxypropyltrimethylamine hydrochloride 15

[0045] Triethanolamine 60

[0046] Polyvinyl alcohol 12

[0047] Methyl acrylate 6

[0048] MgCl 2 10

[0049] water 100;

[0050] (2) Preparation of modified perlite: take 500g of the modified solution in step (1), then add 150g of perlite with a particle size of 500 mesh, and continue stirring for 30 minutes. After the perlite is dispersed, heat up to 80°C. Stir at this temperature for 1 h, filter the solid matter obtained by washing with deionized water for 3 times, and then dry, place the dried solid powder in an air atmosphere in a muffle furnace and roast at 400°C for 3 hours to obtain modified perlite;

[0051] (3) Preparation of Ti / Zn-ZSM-5: Dissolve titanium nitrate and zinc nitrate in 250ml of deionized water, wherein the total weight of titanium nitrate and zinc nitrate is 1.625g, stir and dissolve for la...

Embodiment 2

[0056] (1), preparation of modified liquid (by weight):

[0057] N-methylolacrylamide 40-60

[0058] 3-Chloro-2-hydroxypropyltrimethylamine hydrochloride 15-30

[0059] Triethanolamine 60-90

[0060] Polyvinyl alcohol 12-18

[0061] Methyl acrylate 6-8

[0062] MgCl 2 10-15

[0063] water 100-150;

[0064] (2) Preparation of modified perlite: take 500g of the modified solution in step (1), then add 150g of perlite with a particle size of 500 mesh, and continue stirring for 30 minutes. After the perlite is dispersed, heat up to 80°C. Stir at this temperature for 1-3 hours, filter the obtained solid matter, wash it with deionized water for 3 times, and then dry it. Place the dried solid powder in a muffle furnace in an air atmosphere at 400°C for 3 hours to obtain modified perlite. ;

[0065] (3) Preparation of Ti / Zn-ZSM-5: Dissolve titanium nitrate and zinc nitrate in 250ml of deionized water, wherein the total weight of titanium nitrate and zinc nitrate is 1.625g, stir ...

Embodiment 3

[0070] (1), preparation of modified liquid (by weight):

[0071] N-methylolacrylamide 60

[0072] 3-Chloro-2-hydroxypropyltrimethylamine hydrochloride 30

[0073] Triethanolamine 90

[0074] Polyvinyl alcohol 18

[0075] Methyl acrylate 8

[0076] MgCl 2 15

[0077] water 150;

[0078] (2) Preparation of modified perlite: take 500g of the modified solution in step (1), then add 150g of perlite with a particle size of 500 mesh, and continue stirring for 30 minutes. After the perlite is dispersed, heat up to 80°C. Stir at this temperature for 3 hours, filter the solid matter obtained by washing with deionized water for 3 times, and then dry, place the dried solid powder in a muffle furnace in an air atmosphere at 400 ° C for 3 hours to obtain modified perlite;

[0079] (3) Preparation of Ti / Zn-ZSM-5: Dissolve titanium nitrate and zinc nitrate in 250ml of deionized water, wherein the total weight of titanium nitrate and zinc nitrate is 1.625g, stir and dissolve for later ...

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Abstract

The invention discloses a method for preparing a modified perlite biological filler, which comprises the following steps: 1. Configuring a modified liquid; 2. Preparation of modified perlite; 3. Preparation of Ti / Zn-ZSM-5; 4. Prepare the filler carrier; 5. Spread the mixed bacterial solution evenly on the surface of the filler carrier obtained in step 4, and then smear the sodium alginate solution with a mass percentage of 0.5%, and wash it with water after about 2-4 hours. Dry for 20 hours to obtain the modified biological filler. The modified biological filler obtained by the method has better film-hanging properties, can effectively absorb and decompose long-chain alkanes and polycyclic aromatic hydrocarbons, and will not affect the normal growth of microorganisms.

Description

technical field [0001] The invention relates to a preparation method of modified perlite biological filler, which belongs to the field of environmental protection. Background technique [0002] With the rapid growth of population and the advancement of industrialization, the pollution of water bodies is becoming more and more serious, and a new type of pollution has emerged that is composed of organic refractory substances, traditional ammonia nitrogen, and COD. The treatment effect of traditional sewage treatment methods on this type of sewage Generally bad. The use of microorganisms to treat polluted water bodies is a hot research direction in the field of water treatment today, and it is also a green, efficient, and non-secondary pollution treatment method. Among them, the biofilm method is to hang a film on the surface of the filler to degrade the pollutants in the sewage through the microbial group on the biofilm. [0003] The currently used biological fillers have de...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F3/10C12N1/20C12N1/18C12N1/16C12R1/865C12R1/10C12R1/085C12R1/645
CPCC02F3/107C02F3/34C02F2101/30C12N1/16C12N1/18C12N1/20C12N1/145C12N1/185C12N1/205C12R2001/085C12R2001/10C12R2001/645C12R2001/865Y02W10/10
Inventor 李文新狄君绿
Owner 李健镇
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