Bioprocessing
US-2016348141-A1 · Dec 1, 2016 · US
Dioxane-degrading bacteria-immobilized carrier, biodegradation treatment method, and biodegradation treatment apparatus
US11618699B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11618699-B2 |
| Application number | US-201816764814-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 15, 2018 |
| Priority date | Nov 17, 2017 |
| Publication date | Apr 4, 2023 |
| Grant date | Apr 4, 2023 |
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- Title
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Abstract
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An object is to provide a degrading bacteria-immobilized carrier on which a 1,4-dioxane-degrading bacterium is supported, as well as a biodegradation treatment method for organic compounds, and a biodegradation treatment apparatus, both using this carrier. As a means for achieving the object, a degrading bacteria-immobilized carrier comprising a porous carrier and a 1,4-dioxane-degrading bacterium supported on the porous carrier, as well as a biodegradation treatment method for organic compounds, and a biodegradation treatment apparatus, both using this carrier, are provided.
First claim
Opening claim text (preview).
What is claimed is: 1. A 1,4-dioxane-degrading bacteria-immobilized carrier comprising: a porous carrier; and a 1,4-dioxane-degrading bacterium immobilized on the porous carrier, wherein the porous carrier is hydrophobic and has a specific surface area of 3,000 m 2 /m 3 or greater but no greater than 60,000 m 2 /m 3 , pores of the porous carrier have an average diameter of 20 μm or greater but no greater than 2,000 μm, and the 1,4-dioxane-degrading bacteria is of a Pseudonocardia species. 2. The 1,4-dioxane-degrading bacteria-immobilized carrier according to claim 1 , characterized in that the 1,4-dioxane-degrading Pseudonocardia species is strain N23 that has been deposited under Accession No. NITE BP-02032. 3. A method for manufacturing the 1,4-dioxane-degrading bacteria-immobilized carrier of claim 1 , comprising introducing the porous carrier to a liquid culture medium while culturing therein the 1,4-dioxane-degrading bacteria bacterium. 4. A biodegradation treatment method comprising contacting water contaminated with an organic compound with the 1,4-dioxane-degrading bacteria-immobilized carrier of claim 1 . 5. The biodegradation treatment method according to claim 4 , characterized in that the organic compound contains a cyclic ether. 6. The biodegradation treatment method according to claim 4 , characterized in that the organic compound contains at least one compound selected from the group consisting of 1,4-dioxane, 1,3-dioxolane, 2-methyl-1,3-dioxolane, and tetrahydrofuran. 7. The biodegradation treatment method according to claim 4 , characterized by being a fed-batch process. 8. The biodegradation treatment method according to claim 4 , characterized by being a continuous process.
Assignees
Inventors
Classifications
Biological treatment of water, waste water, or sewage · CPC title
Granular carriers · CPC title
- C12N11/02Primary
Enzymes or microbial cells immobilised on or in an organic carrier · CPC title
Bacteria; Culture media therefor · CPC title
Bacteria or Actinomycetales {; using bacteria or Actinomycetales} · CPC title
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Frequently asked questions
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- What does patent US11618699B2 cover?
- An object is to provide a degrading bacteria-immobilized carrier on which a 1,4-dioxane-degrading bacterium is supported, as well as a biodegradation treatment method for organic compounds, and a biodegradation treatment apparatus, both using this carrier. As a means for achieving the object, a degrading bacteria-immobilized carrier comprising a porous carrier and a 1,4-dioxane-degrading bacter…
- Who is the assignee on this patent?
- Taisei Corp, Organo Corp
- 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 Apr 04 2023 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).