Preparation method of efficient biofilm forming material, and preparation method of biofilm forming filler

A bio-filming, high-efficiency technology, applied in separation methods, sustainable biological treatment, chemical instruments and methods, etc., can solve the problem that the microbial domestication period cannot be reduced, the activity of intracellular proteins cannot be effectively stimulated, and far-infrared rays cannot be generated to stimulate microbial metabolic activity and other issues, to achieve the effect of high mechanical strength and improved efficiency

Pending Publication Date: 2021-02-12
西安毅阳环保科技有限公司
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AI-Extracted Technical Summary

Problems solved by technology

However, some functions of the existing bio-film materials still cannot meet the production needs. For example, they cannot change with the environment, cannot effectively stimulate the activity of microbial...
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Method used

1. remove surface edges and corners, increase the flow channel area when odor passes through biological filler layer in the biological deodorization device, can effectively reduce the resistance when odor passes, but good surface porosity (specific surface area is 31 ~ 40 m2/g, the specific surface area of ​​ordinary bio-film materials is 13.6-25.5m2...
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Abstract

The invention discloses a preparation method of an efficient biofilm forming material, and a preparation method of a biofilm forming filler. The preparation method comprises the following steps: 1) removing surface edges and corners of a weakly magnetic porous material with a particle size of 30-50 mm for later use; (2) adding ferric oxide and potassium hydroxide into 3.5-4.5 cubic meters of wateraccording to a molar ratio of 1:3, uniformly mixing and stirring, and standing for 36-48 h at a temperature of 30-50 DEG C for later use, wherein the total weight of the ferric oxide and the potassium hydroxide is 95-105 Kg; and 3) pouring the weakly magnetic porous material in the step 1) into a water tank, adding the weakly magnetic porous material surface modifier prepared in the step 2) to immerse the weakly magnetic porous material, and after the modifier is circulated for 4 hours, taking out the weakly magnetic porous material, draining, drying in the air, and obtaining the biofilm forming material after modification is completed. According to the invention, the prepared material can change along with the environment, shortens the time for adapting to the environment, has certain mechanical strength, microorganism bearing capacity, specific weak magnetism and natural trace far infrared rays, and can stimulate the activity of microorganisms.

Application Domain

Gas treatmentDispersed particle separation +3

Technology Topic

Potassium hydroxideMineralogy +10

Image

  • Preparation method of efficient biofilm forming material, and preparation method of biofilm forming filler
  • Preparation method of efficient biofilm forming material, and preparation method of biofilm forming filler
  • Preparation method of efficient biofilm forming material, and preparation method of biofilm forming filler

Examples

  • Experimental program(4)

Example Embodiment

[0052]The method for preparing a high-efficiency biological film-hanging material provided by the present invention includes the following steps:
[0053]Step 1: Shape processing of weakly magnetic porous materials
[0054]Remove the surface edges and corners of the weakly magnetic porous material with a particle size of 30-50mm, high rare earth content, and a surface magnetic field intensity of 0.11-60mT, and then use a fan to blow off the surface dust for use;
[0055]The composition table of the weak magnetic porous material is as follows:
[0056]
[0057]Step 2: Preparation of weak magnetic porous material surface modifier
[0058]Use Fe2O3 to Fe3+Calculate and potassium hydroxide, in OH-Add it to 3.5-4.5 cubic meters of water, mix and stir evenly, and let it stand for 36h-48h under the condition of 30-50 degrees for standby. Among them, the total of ferric oxide and potassium hydroxide The weight is 95~105Kg;
[0059]Step 3: Surface modification of weakly magnetic porous materials
[0060]Pour the prepared weak magnetic porous material into a water tank, add the weak magnetic porous material surface modifier prepared in step 2 to immerse the weak magnetic porous material; then use a pump to stop the circulation of the modifier in the pool for 4 hours. Take out the weakly magnetic porous material, drain it, and let it dry. After the modification is completed, it will become a biofilm material.
[0061]The shape treatment process of the weakly magnetic porous material is specifically as follows:
[0062]1) Select the bulk weakly magnetic porous material with a particle size of 30-50mm; among them, some of the metal elements in the weakly magnetic porous material are not encapsulated, and can change with the environment, and carry a small amount of far infrared rays, and the surface magnetic field strength is 0.11-30mT ; The specific area of ​​the biofilm material is 31-40 m2/g.
[0063]2) Load the above-mentioned blocky weak magnetic porous material into the mixer, the filling amount is 30%~75% of the maximum filling capacity of the mixer, turn on the mixer, and adjust the speed to 15~40r/min;
[0064]3) Observe the shape of the weak magnetic porous material in the mixer. It is better if there is no obvious edges and corners. Use a fan to blow off the dust on the surface of the weak magnetic porous material block for use.
[0065]A method for preparing a biofilm-hanging filler based on a high-efficiency biofilm-hanging material includes the following steps:
[0066]1) Expand the cultivation of selected functional microorganisms through the fermentation device, and stop when it reaches 1*106~7cfu/mL;
[0067]2) Mix the fermentation broth in step 1) with the same amount of activated sludge in the aerobic biochemical process section of the urban sewage treatment plant for use;
[0068]3) Immerse the biofilm-coating material in the mixture of functional microbial fermentation broth and activated sludge provided in step 1) and step 2) while letting in air;
[0069]4) After 96 hours, take out the biological film-coated material, drain the water, store in the shade, and prepare the biological film-coated filler for biological deodorization device.
[0070]Specifically, the functional microorganism is Pseudomonas, Bacillus cereus, Bacillus subtilis, or Bacillus paras.
[0071]More specifically, the main functional bacteria in the biological system: Amplify 16 SrDNA or 26 SrDNA fragments by PCR, and compare them in GenBank (American Bioinformatics Database) and Eztaxon (Korea Bioinformatics Database) after sequencing:
[0072]Pseudomonas, Bacillus cereus, Bacillus subtilis, Bacillus paras
[0073]Other auxiliary bacteria: Yeast, Lactobacillus, Acetobacter, Thiobacillus autotrophicus, Sclerotium, Alcaligenes, Achromobacterium, Algaelytic bacteria.

Example Embodiment

[0074]Example 1, a method for preparing a high-efficiency biofilm-hanging material, including the following steps:
[0075]Step 1: Shape processing of weakly magnetic porous materials
[0076]1. The selected place of origin is Baiyun Obo in Inner Mongolia, southern Jiangxi, northern Guangdong, Liangshan in Sichuan, Weishan in Shandong, Fujian and other places. The content of rare earth elements formed by volcanic eruptions is relatively high, with strong magnetism and low far infrared characteristics. Weak magnetic porous material, commonly known as biofilm material.
[0077]The composition of the weakly magnetic porous material is as follows:
[0078]
[0079]2. Select the weakly magnetic porous material with a particle size of 40mm block, such asfigure 1.
[0080]3. Put the above-mentioned massive weak magnetic porous material into the mixer, the filling amount is 50% of the maximum filling capacity of the mixer, turn on the mixer, and adjust the speed to 35r/min.
[0081]4. Observe the shape of the weakly magnetic porous material in the mixer. It is better if there are no obvious edges and corners. Use a fan to blow off the dust on the surface of the biofilm material block for use.figure 2.
[0082]The second step is to prepare the surface modifier for weak magnetic porous materials
[0083]Use Fe2O3 to Fe3+Calculate and potassium hydroxide, in OH-Calculate the molar ratio of 1:3, add it to water, the total liquid volume is 4 cubic meters, including water, ferric oxide and potassium hydroxide; mix and stir well, stand for 48h at 40 degrees temperature, standby, trioxide The total weight of diiron and potassium hydroxide is 100Kg.
[0084]The third step is the surface modification of weak magnetic porous materials
[0085]1. Pour the prepared weak magnetic porous material into a sink, add the above modifier to immerse the weak magnetic porous material;
[0086]2. Use a pump to stop the circulation of the modifier in the tank for 4 hours.
[0087]3. Take out the weakly magnetic porous material, drain it, and let it dry. After the modification is completed, it will become a biofilm material.
[0088]The high-efficiency biological film-coating material provided by the present invention, as a biological film-coating material used in the deodorization device of the biological filter method, has the following advantages:
[0089]1. The wind resistance of the filler layer is smaller;
[0090]2. The surface of the filler has a magnetism of 0.11~60mT, has the function of releasing far infrared rays, and has a strong effect of stimulating the activity of microbial enzymes, which is beneficial to improve the ability of microorganisms to treat pollutants;
[0091]3. Higher efficiency for processing sulfur-containing waste gas;
[0092]4. The amount of biofilm is higher;
[0093]5. The microbial activity in the biofilm is higher;
[0094]6) The packing will hardly be blocked.

Example Embodiment

[0095]Embodiment 2, a method for preparing a high-efficiency biofilm-hanging material, including the following steps:
[0096]Step 1: Shape processing of weakly magnetic porous materials
[0097]1. The selected place of origin is Baiyun Obo in Inner Mongolia, southern Jiangxi, northern Guangdong, Liangshan in Sichuan, Weishan in Shandong, Fujian and other places. The content of rare earth components formed by volcanic eruptions is relatively high, with strong magnetism and low far infrared characteristics. Weak magnetic porous material, commonly known as biofilm material.
[0098]The composition of the weakly magnetic porous material is as follows:
[0099]
[0100]2. Select the weakly magnetic porous material with a particle size of 50mm block, such asfigure 1.
[0101]3. Put the above-mentioned massive weak magnetic porous material into the mixer, the filling amount is 30% of the maximum filling capacity of the mixer, turn on the mixer, and adjust the speed to 15r/min.
[0102]4. Observe the shape of the weakly magnetic porous material in the mixer. It is better if there are no obvious edges and corners. Use a fan to blow off the dust on the surface of the biofilm material block for use.figure 2.
[0103]The second step is to prepare the surface modifier for weak magnetic porous materials
[0104]Use Fe2O3 to Fe3+Calculate and potassium hydroxide, in OH-Calculate the molar ratio of 1:3, add it to water, the total liquid volume is 4 cubic meters, including water, ferric oxide and potassium hydroxide; mix and stir well, stand for 42h at 40 degrees temperature, standby, trioxide The total weight of diiron and potassium hydroxide is 100Kg.
[0105]The third step is the surface modification of weak magnetic porous materials
[0106]1. Pour the prepared weak magnetic porous material into a sink, add the above modifier to immerse the weak magnetic porous material;
[0107]2. Use a pump to stop the circulation of the modifier in the tank for 4 hours.
[0108]3. Take out the weakly magnetic porous material, drain it, and let it dry. After the modification is completed, it will become a biofilm material.

PUM

PropertyMeasurementUnit
Particle size30.0 ~ 50.0mm
Specific area31.0 ~ 40.0m
Specific surface area31.0 ~ 40.0m²/g

Description & Claims & Application Information

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