Patents
US 7910001 B2: Arrangement of denitrification reactors in a recirculating aquaculture system
- Granted
- 2011-03-22
- Filed
- 2008-12-12 application 12333352
- Type
- Utility · 3 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present invention relates to a novel arrangement of denitrification reactors for removal of nitrate compounds in a recirculating aquaculture system. The novel arrangement of an aquaculture system of the present invention includes positioning one or more anaerobic denitrification reactors upstream of aerobic nitrification and degassing processes. One aspect of the present invention includes a flow of aqueous medium from aquatic species rearing tanks towards one or more denitrification reactors. Another aspect of the present invention includes flow of aqueous medium from aquatic species rearing tanks to a solids removing filter or mechanical filtration means for removal of solid waste matter or biomass prior to flow of aqueous medium towards one or more denitrification reactors. In a sequence of components comprising a system of the present invention, treated and denitrified aqueous medium exiting one or more denitrification reactors is directed towards a solids removing filter wherein treated and denitrified aqueous medium combines with untreated aqueous medium. Combined untreated aqueous medium and denitrified aqueous medium exits a solids removing filter and is directed towards an aerobic nitrification unit. Aqueous medium exiting the aerobic nitrification unit is degassed and oxygenated and returned to aquatic species rearing tanks. A system of the present invention which utilizes denitrification reactors positioned upstream of aerobic nitrification has advantages over existing aquaculture systems which use denitrification in reduction of nitrate concentrations. This results in greater mitigation of water chemistries and compounds which are harmful to aquatic species and more efficient use and conservation of water resources.
Source: PVGPATDIS, file of 2026-04-10 (ipg110322.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| MOTE MARINE LABORATORY, INC 9 patents | US company or organization | Sarasota, FL | MOTE MARINE LABORATORY, INC. State business registration EXACT high confidence: identical full name and state MOTE MARINE LABORATORY Nonprofit FUZZY medium confidence: same name (governing-board words and legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| James T. Michaels | Bradenton, FL | 2 | PVGPATDIS, file of 2026-04-10 | |
| Heather J. Hamlin | Gainesville, FL | 1 | PVGPATDIS, file of 2026-04-10 | |
| William H. Dutt | Wolfeboro Falls, NH | 1 | PVGPATDIS, file of 2026-04-10 | |
| William Graham | Bradenton, FL | 1 | PVGPATDIS, file of 2026-04-10 | |
| Peter Steinbach | Kallstadt, DE | 4 | PVGPATDIS, file of 2026-04-10 | |
| Brian Babbitt | Sarasota, FL | 1 | PVGPATDIS, file of 2026-04-10 | |
| Brian A. Richards, II | Sarasota, FL | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A01K | Animal husbandry; aviculture; apiculture; pisciculture; fishing; rearing or breeding animals, not otherwise provided for; new breeds of animals | A01K63/04 | PVGPATDIS, file of 2026-04-10 |
| C02F | Treatment of water, waste water, sewage, or sludge | C02F3/302 | PVGPATDIS, file of 2026-04-10 |
| Y10S | Technical subjects covered by former uspc cross-reference art collections [xracs] and digests | Y10S210/903 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2009-05-28 | Assignment Assignment of assignor's interest | HAMLIN, HEATHER J signed 2009-03-06 GRAHAM, WILLIAM signed 2009-03-09 STEINBACH, PETER signed 2009-03-12 BABBITT, BRIAN signed 2009-03-19 MICHAELS, JAMES T, II signed 2009-03-19 RICHARD, BRIAN A, II signed 2009-03-19 DUTT, WILLIAM H signed 2009-04-03 | MOTE MARINE LABORATORY SARASOTA, FL | 22743/633 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.