Bioprocessing
US-2016348141-A1 · Dec 1, 2016 · US
Microorganism immobilized carrier
US11518698B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11518698-B2 |
| Application number | US-201816772050-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 13, 2018 |
| Priority date | Dec 13, 2017 |
| Publication date | Dec 6, 2022 |
| Grant date | Dec 6, 2022 |
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- Title
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Abstract
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[Problem] A microorganism immobilized carrier is provided that is easy for microorganisms to adhere to, and is able to reduce the manufacturing cost of the microorganism immobilized carrier and the running cost of an apparatus that uses the microorganism immobilized carrier. [Solution] A microorganism immobilized carrier is characterized by including a carbon component and a resin, having a zeta potential of from −25 mV to 0 mV, and containing microorganisms adhered to a surface thereof and/or an interior thereof. The microorganisms are preferably nitrifying bacteria. The carbon component preferably has a particle size of from 1 μm to 1000 μm.
First claim
Opening claim text (preview).
The invention claimed is: 1. A microorganism immobilized carrier, characterized by comprising a carbon component and a resin, having a zeta potential of from −25 mV to 0 mV, and containing microorganisms adhered to a surface thereof and/or an interior thereof, wherein the carbon component has a particle size of 2 μm to 500 μm, and the proportion of the carbon component is from 50 weight % to 75 weight %, and the proportion of the resin is from 25 weight % to 35 weight %. 2. The microorganism immobilized carrier according to claim 1 , wherein the interior thereof includes continuous pores, and the pores have a diameter of from 1 μm to 1000 μm. 3. The microorganism immobilized carrier according to claim 1 , wherein the carbon component is graphite. 4. The microorganism immobilized carrier according to claim 1 , wherein the microorganisms are nitrifying bacteria. 5. The microorganism immobilized carrier according to claim 1 , wherein the resin is a thermoplastic resin having a hydroxy group, and the microorganism immobilized carrier further comprises a cross-linking agent for the thermoplastic resin, the cross-linking agent being a chemical compound having a carboxyl group and/or an aldehyde group. 6. The microorganism immobilized carrier according to claim 1 , wherein the proportion of the carbon component is from 65 weight % to 75 weight %. 7. The microorganism immobilized carrier according to claim 1 , wherein the bulk density is 0.6 g/cc or less. 8. A microorganism immobilized carrier, characterized by comprising a carbon component and a resin, having a zeta potential of from −25 mV to 0 mV, and containing microorganisms adhered to a surface thereof and/or an interior thereof, wherein the carbon component is isotropic graphite, the proportion of the carbon component is from 50 weight % to 75 weight %, and the proportion of the resin is from 25 weight % to 35 weight %, and the carbon component has a particle size of 2 μm to 500 μm. 9. The microorganism immobilized carrier according to claim 8 , wherein the resin is a thermoplastic resin having a hydroxy group, and the microorganism immobilized carrier further comprises a cross-linking agent for the thermoplastic resin, the cross-linking agent being a chemical compound having a carboxyl group and/or an aldehyde group.
Assignees
Inventors
Classifications
- C12N11/02Primary
Enzymes or microbial cells immobilised on or in an organic carrier · CPC title
Bacteria; Culture media therefor · CPC title
- C02F3/107Primary
Inorganic materials, e.g. sand, silicates · CPC title
Biological treatment of water, waste water, or sewage · CPC title
characterised by the nitrification · CPC title
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Frequently asked questions
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- What does patent US11518698B2 cover?
- [Problem] A microorganism immobilized carrier is provided that is easy for microorganisms to adhere to, and is able to reduce the manufacturing cost of the microorganism immobilized carrier and the running cost of an apparatus that uses the microorganism immobilized carrier. [Solution] A microorganism immobilized carrier is characterized by including a carbon component and a resin, having…
- Who is the assignee on this patent?
- Toyo Tanso Co
- What technology area does this patent fall under?
- Primary CPC classification C12N11/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 06 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).