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| Number | Title | Issue Date |
| 7678266 | Integrated water treatment apparatus and methods for natural water improvement A water treatment apparatus includes a float configured to float on the surface of a water body, a first fluid channel coupled to the float and configured to circulate contaminated water in the water body, and a second fluid channel coupled to the float and configur... | 03/16/2010 |
| 7622040 | Fine bubble airlift device The present invention relates to an aeration device for use in a liquid medium. The device includes a housing adapted to float within the medium such that a top portion thereof remains above a top surface of the medium. The housing has a bottom portion and an open s... | 11/24/2009 |
| 7396456 | Cruising aeration apparatus and method A cruising aeration apparatus and a method are described. The cruising aeration apparatus comprises an aeration device for circulating the water in an aquatic pool, at least one conducting element connected to the aeration device for conducting the aeration device a... | 07/08/2008 |
| 7331569 | Liquid aeration system and method A system for aerating liquid within a liquid retention structure including a liquid delivery tube in fluid communication with a gas exchange chamber and a pump. The gas exchange chamber includes an air inlet and a gas outlet. The pump is configured to pump liquid wi... | 02/19/2008 |
| 7329347 | Separating device The invention relates to a separating device for separating a first liquid from a second liquid, wherein the first liquid has a lower specific density than the second liquid. The separating device comprises a receptacle with an inside wall, an inlet and an outlet, w... | 02/12/2008 |
| 7329351 | Process and apparatus for increasing biological activity in waste treatment in bodies of water A process and apparatus for increasing biological activity in waste treatment ponds and lagoons. In this process a floating fluid circulator having an annular space between nested frusto-conical surfaces is operated in a pond or lagoon. An aerator within the scope o... | 02/12/2008 |
| 7306724 | Wastewater treatment Wastewater is treated on at least one apparatus positioned at a location on the surface of a body of seawater wherein a wastewater intake system takes in wastewater into the apparatus, the wastewater is treated on the apparatus to yield treated wastewater and sludge... | 12/11/2007 |
| 7282144 | Semi-submersible floating decanters and methods of using same Semi-submersible floating decanters and methods of use are provided. The decanters are moveable between a non-decant position and a decant position, and include a float forming an internal cavity, the float having a central annulus, a weir having an inlet opening an... | 10/16/2007 |
| 7267766 | Method and apparatus for aerating a surface layer in a stratified liquid body A method and apparatus for aerating a surface layer in a stratified liquid body using a depth-adjustable, fine bubble, surface layer aeration unit comprising: a body comprising at least one hollow internal structure; | 09/11/2007 |
| 7155750 | Filtering apparatus of circulating flush toilet A filtering apparatus of a circulating flush toilet recycling drain water having used for washing the inside a toilet bowl is disposed between a water-receiving tank and a water-pumping tank of the flush toilet so as to solve problems such as clogging of a pipe and ... | 01/02/2007 |
| 7153423 | Wastewater treatment Offshore facilities, systems, and methods for treating wastewater have been developed. An offshore wastewater treatment facility include wastewater treatment components (for preliminary treatment, primary treatment, secondary treatment, and/or advanced treatment); a... | 12/26/2006 |
| 7121536 | Wave generator with oxygen injection for treatment of a body of fluid One embodiment of an aerator is disclosed that has a hollow intake housing with a horizontally disposed lip on a lower portion thereof. This intake housing converges a flow of bubbles into a draft tube. These bubbles are injected into a fluid in which the aerator is... | 10/17/2006 |
| 7008535 | Apparatus for oxygenating wastewater A method and apparatus creates gas-enriched fluid that is used to treat wastewater. In one embodiment, the wastewater is withdrawn from a supply of wastewater to be treated, and the wastewater is delivered in an atomized manner to a vessel pressurized with gas to fo... | 03/07/2006 |
| 6994329 | Floating paddlewheel aerator The invention relates to a floating paddlewheel aerator for aerating water or clearing basins. The paddlewheel aerator includes a frame (1) of elongated floats (2, 3), which are substantially arranged at a right angle to each other and are linked with ... | 02/07/2006 |
| 6824124 | Aerator and mixer An aerator/mixer which includes a rotatable hollow drive shaft one or more air intake ports adjacent one end, and a propeller and an air permeable diffuser mounted adjacent to the other end; the diffuser is mounted below the propeller; and is in communication with t... | 11/30/2004 |
| 6726846 | Vertical membrane storage system and method of storing liquids using the same A vertical membrane storage system including a flexible membrane housing having an upper enclosed portion capable of storing a fluid and a lower open portion for receiving the fluid is disclosed. The storage system also includes a flotation tube disposed above and c... | 04/27/2004 |
| 6702938 | Odor reduction system for waste holding tanks An odor reducing assembly for use in a marine vessel or RV waste holding tank including an aeration tube and an aeration pump. The aeration tube is disposed in a bottom portion of the holding tank. The aeration tube may be provided by a separate aeration ... | 03/09/2004 |
| 6638420 | Apparatus for sewage treatment Apparatus for treatment of sewage on vessels. The apparatus includes at least a first aeration chamber, a settling chamber, a disinfection chamber, and a storage container. In order to provide a multifunctional and efficient apparatus, the aeration chambe... | 10/28/2003 |
| 6634626 | Horizontal surface aerator The invention is a paddlewheel aerator having a support structure, a drive mechanism contained within the support structure, a rotatable shaft extending horizontally from the drive mechanism; and a plurality of paddlewheels surrounding the shaft. A plural... | 10/21/2003 |
| 6514410 | Odor control apparatus for facultative lagoon An odor control apparatus for a facultative lagoon, and a facultative lagoon created and maintained thereby. The apparatus includes an aerator and a cover. The aerator can include a body with an inlet and an outlet and a support such as a float. The inlet... | 02/04/2003 |
| 6500337 | Device for oil removal and transport A device of oil removal and transport comprising a bulk material having an inlet region and an outlet region, which is in liquid communication with a reservoir. A membrane is hermitically sealed to or about the inlet region, wherein the membrane is liquid... | 12/31/2002 |
| 6499727 | Internal drive aerator for body of liquids An aerator or destratifier used to provide Oxygen to standing or less active bodies of water. The aerator has a non-floating internally driven motor within a non-floating sealed drum. The drum and motor are supported by a support frame attached to floatat... | 12/31/2002 |
| 6485229 | Containment/exclusion boom and methods of using the same The present invention relates to a method of controlling movement of suspended particulates or marine life in a body of water. The method includes introducing into the body of water containing suspended particulates or marine life a containment/exclusion ... | 11/26/2002 |
| 6478964 | Floating fine-bubble aeration system A floating fine-bubble aeration system for dissolving a gas in a liquid in which the system is floated. A grid of uniformly spaced fine-bubble diffusers is used to establish large area of bubble-laden liquid, having a substantially uniform density. The un... | 11/12/2002 |
| 6439853 | Water circulation apparatus and method This circulation device is equipped with a water impeller that is larger than and tightly fitted over the top of the draft tube through which the water from the pond or reservoir is drawn. By placing the impeller above and out of the draft tube it enables... | 08/27/2002 |
| 6436289 | Vertical membrane storage system and method of storing liquids using the same A vertical membrane storage system including a flexible membrane housing having an upper enclosed portion capable of storing a fluid and a lower open portion for receiving the fluid is disclosed. The storage system also includes a flotation tube disposed ... | 08/20/2002 |
| 6432302 | Water circulation apparatus system and method This circulation device is equipped with a water impeller that is larger than and tightly fitted over the top of the draft tube through which the water from the pond or reservoir is drawn. The water drawn up and directed outwardly over a large diffuser pl... | 08/13/2002 |
| 6390455 | Bubble generating device having a float connected thereto A bubble generating device includes a shaft connected to a float and a plurality of frames connected to the bolt at their first ends. A porous device is connected to the respective mediate portions of the frames. A bolt extends through respective second e... | 05/21/2002 |
| 6390456 | Bubble generating device A bubble generating device includes a central tube having a hollow interior and a float is connected to the central tube. The central tube extends through a disk and a porous film is fixedly mounted to a peripheral wall of the disk A U-shaped tube is conn... | 05/21/2002 |
| 6348147 | Fluid flow system for floating biological contactor A floating biological contactor confining aerobic bacterial growth media in a container submerged in a wastewater lagoon provides fluid flow for bacteria growth by bubbling fine air bubbles upward through the media from diffusers arranged near the contain... | 02/19/2002 |
| 6344144 | High-capacity bio-block aeration system for stimulating enhanced bio-activity in aerobic wastewater treatment processes This invention relates to the aeration of relatively large volumes of wastewater using an improved high-capacity aeration system to stimulate enhanced bio-activity. An air delivery system is provided to deliver oxygen to a body of wastewater beneath a lar... | 02/05/2002 |
| 6325842 | Method and apparatus for aerating The present invention is a method and apparatus for aerating liquids including pumping liquids to be aerated into a hollow manifold, providing nozzles on the manifold and openings in the top of the manifold for spraying the liquids to be aerated therefrom... | 12/04/2001 |
| 6276670 | Combined mixer-aerator The invention describes an apparatus which can be used both for aeration of water and mixing of water. The apparatus comprises a power source which can drive a helical propelling device, whereby the propelling device can operate in both directions of rota... | 08/21/2001 |
| 6273402 | Submersible in-situ oxygenator An apparatus and method for mixing a gas and a liquid while concomitantly mixing and suspending solids and sludge at the bottom of a deep tank. The present invention includes a gas-liquid aerator which is adapted to be submerged below the surface of waste... | 08/14/2001 |
| 6270681 | Aeration pond with oxygen recycling Water in an aeration pond is treated with substantially pure oxygen. The oxygen originates from a pressurized oxygen supply, and is conducted through a conduit to the bottom of the pond. Perforations located around the perimeter and along the length of th... | 08/07/2001 |
| 6260831 | Apparatus for aerating water with fine bubbles An apparatus for aerating water with fine bubbles using elastomeric members having fine openings is provided. The apparatus is provided with one or more lifting bodies in such a way that the apparatus, which is generally disposed at the base of a reservoi... | 07/17/2001 |
| 6231766 | Water treatment process A process for treating a body water to purify it. In this process, a portion of the water to be treated is continuously caused to flow at a rate of at least about 60 feet per minute and is continuously agitated, aerated, and fed into a biochamber within w... | 05/15/2001 |
| 6159361 | Oil-reclaiming bouyant apparatus An oil separating buoyant surface vessel for separating oil from surface water level from a large body of oil-contaminated water and for economically reclaiming this oil The vessel comprises a pair of lateral buoyancy members and a liquid flow-through sep... | 12/12/2000 |
| 6086056 | Float sink header An aeration header for mounting beneath the surface of a body of water is described. The header is formed by a first pipe arranged for transmitting the gas or fluid, a second buoyancy pipe arranged to hold either water or air and an elongate ballast pipe ... | 07/11/2000 |
| 6083405 | Floating water purification free-running apparatus and water purification method A floating water purification free-running apparatus includes a floating structure, a water purification section, second pumps, a drain outlet, a free-running section, a water quality sensor, a solar cell, an inverter, a sunshine recorder, and a controlle... | 07/04/2000 |
