Hybrid activated iron-biological water treatment system and method
US-2017362108-A1 · Dec 21, 2017 · US
Methods and compositions for nitrogen removal using feammox microorganisms
US9815723B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9815723-B2 |
| Application number | US-201514707700-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 8, 2015 |
| Priority date | May 8, 2014 |
| Publication date | Nov 14, 2017 |
| Grant date | Nov 14, 2017 |
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Abstract
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Processes and compositions for removal nitrogen, organic and inorganic contaminants from wastewater using Feammox bacterium are provided.
First claim
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What is claimed is: 1. A composition comprising: an Acidimicrobiaceae Feammox bacterium A6 having Accession Deposit Number PTA-122488, a carrier and wastewater, wherein the bacterium is capable of oxidizing ammonium coupled with reduction of Fe(III) to Fe(II), the carrier comprises a medium for culturing the bacterium, and the wastewater comprises an ammonium containing contaminant and at least one more contaminant selected from the group consisting of: halogenated organic contaminants, chlorinated volatile organic compounds, perchloroethylene (PCE), trichloroethylene (TCE), trichloroethane, dichloroethane, vinyl chloride, polychlorinated biphenyls, fuel constituents, benzene, ethylbenzene, toluene, xylene, phenanthrene, methyl tert butyl ether, tertiary butyl alcohol, polyaromatic hydrocarbons, and ethylene dibromide. 2. The composition of claim 1 further comprising a source of ferric iron. 3. The composition of claim 2 , wherein the source is selected from the group consisting of: a ferrihydrite, a goethite, a scrap iron, a nontronite, and an iron-rich clay. 4. The composition of claim 1 , wherein the medium comprises ammonium and iron oxide and has an acidic pH. 5. The composition of claim 4 further comprising CO 2 . 6. The composition of claim 1 further comprising CO 2 . 7. The composition of claim 1 comprising at least 10 4 bacterial cells per milliliter of the composition. 8. The composition of claim 7 comprising the bacterium in the concentration in a range from 10 4 to 10 10 bacterial cells per milliliter of the composition.
Assignees
Inventors
Classifications
Nitrogen compounds, e.g. ammonia · CPC title
- C02F3/341Primary
Consortia of bacteria · CPC title
Iron bacteria · CPC title
Aerobic and anaerobic treatment in the same reactor · CPC title
Radioactive compounds · CPC title
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Frequently asked questions
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- What does patent US9815723B2 cover?
- Processes and compositions for removal nitrogen, organic and inorganic contaminants from wastewater using Feammox bacterium are provided.
- Who is the assignee on this patent?
- Univ Princeton
- What technology area does this patent fall under?
- Primary CPC classification C02F3/341. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 14 2017 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).