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| Number | Title | Issue Date |
| 7390410 | Method and apparatus for the anaerobic treatment of waste A method and apparatus for the anaerobic treatment of waste water is described which includes a plug flow bioreactor containing a single bed of inert microbial attachment media and anaerobic microorganisms, and having at least one baffle member which forms a first z... | 06/24/2008 |
| 7374672 | Filter device comprising integral centrifugal separation A filter apparatus having a filter membrane, a main body, a supply channel running perpendicular to the surface of the filter membrane and a gap running between it and the filter membrane, for the formation of a tangentially directed transverse flow, a return channe... | 05/20/2008 |
| 7341660 | Unitary three stage wastewater treatment system The invention is a three stage wastewater treatment system having a first tank, a second tank and a third tank, all in fluid communication and forming a unitary structure. The first and second tanks are nested, where the first tank is the innermost tank. The first t... | 03/11/2008 |
| 7331472 | Method and apparatus for separation of a mixture of non-miscible liquids A tank has an inlet opening mounted at an end wall at the beginning of an elongated horizontal path for supplying a mixture to be separated, and two outlet openings mounted at the end of the elongated horizontal path for separately draining the separated liquids. An... | 02/19/2008 |
| 7300579 | Flocculation apparatus A flush mixing tank is provided with a flocculant mixing section in which a raw water a to be treated is introduced and a flocculant such as known aluminum sulfate or polychlorinated aluminum is injected, and then they are agitated and mixed; and a floc growing sect... | 11/27/2007 |
| 7264727 | Septic system remediation method and apparatus An apparatus and a method for the remediation of failing wastewater treatment systems, such systems being comprised of one or more septic tanks and a seepage pit, drywell, absorption field or an above grade mound system having an inlet and a plurality of outlets whe... | 09/04/2007 |
| 7141167 | Filter device A filter device for filtering liquids including a filter membrane, a main body which is arranged upstream from the filter membrane, and which has a feed channel perpendicular to the surface of the filter membrane, a gap extending between the filter membrane and the ... | 11/28/2006 |
| 7108788 | On-site treatment method of food waste generated from collective residence or institutional food service facilities Disclosed is an on-site treatment method of food waste generated from multi-unit dwellings and institutional food service facilities, by transporting wastewater-containing food waste to a separation chamber by use of domestic wastewater or an additional transporter;... | 09/19/2006 |
| 7063786 | Wastewater treatment bioreactor Wastewater treatment bioreactor, an aeration zone and a settle zone are provided, the aeration device is located above the aeration zone, and a barrier and a gap are arranged between the aeration zone and the settle zone. ... | 06/20/2006 |
| 7005065 | Wastewater treatment system having aeration dropline-supporting clips A clip for supporting the clarifier and the droplines in a wastewater treatment system is disclosed. The clip comprises a pair of parallel main plates wherein at least one main plate contains a groove. The main plates are separated by a bracing plate. The bracing pl... | 02/28/2006 |
| 6964738 | Bioreactor processing of wastewater A bioreactor tank is internally partitioned into two chambers within which wastewater is respectively aerated and from which a bacteria purified permeate is withdrawn after filtration, while a high bacteria content remnant is recycled between the chambers to repeate... | 11/15/2005 |
| 6942788 | Growth media wastewater treatment reactor A reactor chamber for placement in a wastewater treatment system, where the reactor chamber has a chamber formed from a sidewall which forms an interior of the chamber. The sidewall has a top portion and a bottom portion and fixed channel growth media positioned in ... | 09/13/2005 |
| 6921489 | Aerated grit chamber and method An aerated grit chamber includes an aeration zone in which influent is vigorously aerated and a settling zone separated from the aeration zone by a baffle beneath which wastewater flows from the aeration zone into the settling zone. The aeration causes swirling moti... | 07/26/2005 |
| 6827850 | Diffusion bar aerobic treatment plant The Diffusion Bar Aerobic Treatment Plant (“DBATP”) is a device which processes sewage for buildings which are not connected to municipal sewer lines. It is comprised of a pre-tank which captures trash and allows anaerobic microorganisms to begin breaking down t... | 12/07/2004 |
| 6572774 | Waste treatment method and apparatus with integral clarifier A waste treatment method and apparatus including an aeration basin for holding waste, an aerating device for aerating the waste and an integral clarifier in which sludge particles separate out of the waste, leaving discharge water and recycled sludge. Bet... | 06/03/2003 |
| 6569338 | Integrated vertical wastewater treatment vessel and method A vessel (10) for placement on a land site for sanitary treatment of wastewater, in which an inlet communicates wastewater and suspended solids through a mixing chamber (30) to an aeration zone (34) that receives air from nozzles (37) for biological diges... | 05/27/2003 |
| 6517714 | Treatment of liquids with ballasted flocculation In the typical embodiments disclosed in the specification, a ballasted flocculation liquid treatment arrangement includes a mixing chamber in which liquid to be treated, flocculating agents and granular material are mixed. The mixture is supplied to the b... | 02/11/2003 |
| 6409914 | Waste treatment unit An enzyme containing in-house digester unit for receiving and treating household waste material, which utilizes settling and biological treatment of solids and wastewater by means of organisms which digest the organic materials contained in the household ... | 06/25/2002 |
| 6224773 | Wastewater treatment system with enhanced directional flow A wastewater treatment system has a tank and at least one baffle disposed in the tank so as to subdivide the tank to form a treatment chamber and a clarification or settling chamber. The baffle is inclined relative to vertical, so that the clarification c... | 05/01/2001 |
| 6217761 | Wastewater treatment system preventing the build up of solids beneath the clarifier opening A wastewater treatment system having a treatment chamber and a clarifier chamber, the treatment chamber having a floor, the clarifier chamber separated from the treatment chamber by a common partition, the clarifier chamber having a top portion and a bott... | 04/17/2001 |
| 6200472 | Three stage sewage treatment system The Three Stage Sewage Treatment System ("TSSTS") processes sewage for buildings not connected to a municipal sewer system. It employs a three stage process for cleaning sewage in a single, light-weight, easy-to-install unit. Sewage is initially cleaned a... | 03/13/2001 |
| 6165359 | High strength wastewater treatment system A high strength wastewater treatment system having a first tank with an inlet and an outlet, an aerator positioned within the first tank for passing oxygen into wastewater within the first tank, a second tank having a clarifier compartment positioned ther... | 12/26/2000 |
| 6120687 | Integrated vertical wastewater treatment vessel and method with aeration zone and two secondary clarifiers A vessel (10) for placement on a land site for treatment of wastewater, in which an inlet (22) communicates wastewater, grit, and suspended solids into a grit collecting chamber (24) for settling grit particulates therefrom. An aeration zone (34) receives... | 09/19/2000 |
| 6099722 | Aerobic wastewater treatment system for small flows A self-contained wastewater treatment system is provided, comprising a vessel having a bottom, side walls and a lid defining a hollow interior for containing wastewater, the vessel being adapted for installation underground; an influent line; an effluent ... | 08/08/2000 |
| 6096203 | Wastewater treatment system A wastewater treatment system having a tank with an inlet and an outlet and an offset access opening residing at a top of the tank, a clarifier compartment positioned within the tank, an aeration compartment formed within the tank around an exterior of th... | 08/01/2000 |
| 6093316 | Sewage treatment apparatus A sewage treatment apparatus including a treatment tank with a floor and walls and having an upper aperture. A hopper having a clarifier chamber with upper and lower apertures is centrally disposed on hopper supports in the treatment tank, maintained at a... | 07/25/2000 |
| 6090277 | Reactor for the depuration of polluted waste waters Polluted waste waters are introduced into a tank (1, 100) in which a number of cavitation oxygenizers (5, 6, 11) are installed close and parallel to the bottom of the tank and divided into three types, one (5) that expels re-circulated water and air, a se... | 07/18/2000 |
| 6083397 | Clip for the support of a dropline in an aerated wastewater treatment tank A clip for supporting the clarifier and the droplines in a wastewater treatment system is disclosed. The clip comprises a pair of parallel main plates separated by a bracing plate. The bracing plate is perpendicular to the main plates and is attached to t... | 07/04/2000 |
| 5942108 | Multi-phase dual cycle influent process A waste water system having an embedded separator capable of concentrating activated denitrified sludge, and recycling the denitrified sludge to an anaerobic cell, provides a highly efficient method and apparatus for sewage disposal. The basic system is d... | 08/24/1999 |
| 5904850 | Settling device for a fluid containing liquid, gas and particulate material, as well as a cleaning device provided herewith and a method for cleaning waste water A settling device (2) for a fluid containing liquid, gas and particulate material comprises liquid-discharge elements (15) fitted close to the water level of the fluid and supply elements for supplying the fluid at the bottom of the settling chamber. In t... | 05/18/1999 |
| 5895576 | Method and apparatus for wastewater treatment by chemical reaction of reactive filler and propagated microorganisms An apparatus for wastewater treatment is provided which can efficiently treat wastewater containing organic matter and, in addition, fluorine, with a relatively small number of tanks required for such treatment. The apparatus includes a first tank adapted... | 04/20/1999 |
| 5895566 | Aerobic wastewater treatment system for small flows A self-contained wastewater treatment system is provided, comprising a vessel having a bottom, side walls and a lid defining a hollow interior for containing wastewater, the vessel being adapted for installation underground; an influent line; an effluent ... | 04/20/1999 |
| 5879550 | Clip for the support of a clarifier and a dropline in an aerated wastewater treatment tank A clip for supporting the clarifier and the droplines in a wastewater treatment system is disclosed. The clip comprises a pair of parallel main plates separated by a bracing plate. The bracing plate is perpendicular to the main plates and is attached to t... | 03/09/1999 |
| 5874003 | Wastewater treatment apparatus with floating clarifier A wastewater treatment apparatus including a biotreatment tank and a floating clarifier within the tank. The floating clarifier includes a floating base and a perimeter wall mounted to and beneath the floating base. A plurality of tented panels mounted to... | 02/23/1999 |
| 5843305 | Sewage and wastewater treatment plant using anaerobic and aerobic microorganisms A sewage and wastewater treatment plant which comprises a bioreactor having an anaerobic treatment tank for anaerobic treatment, an aerobic contacting tank and a microorganism separation tank located in between the anaerobic and aerobic tanks respectively... | 12/01/1998 |
| 5830351 | Biomass conditioner A wastewater treatment system has at least one treatment chamber and at least one settling chamber. An influent conduit connects the treatment chamber to a source of wastewater. A pump is provided for transferring treated wastewater, the treated wastewate... | 11/03/1998 |
| 5811011 | Biological treatment of wastewater In the embodiments of the invention described in the specification, an arrangement for biological treatment of wastewater includes a basin with an aeration region and a clarification region separated by a movable wall having a passage between the bottom o... | 09/22/1998 |
| 5766459 | Integrated wastewater treatment system with induced sludge velocity An integral activated sludge wastewater treatment system has a vessel having at least one internal baffle dividing the vessel into at least one treatment chamber and at least one settling chamber. The settling chamber is at least partially defined by a fi... | 06/16/1998 |
| 5698094 | Device for biological treatment of liquid, especially sewage A device for the biological treatment of liquids, especially sewage, including at least two compartments between which a vertical wall is inserted so that the compartments communicate with each other by free passages above and below the wall. The liquid t... | 12/16/1997 |
| 5688400 | Waste water treatment plant A modular sewage treatment plant is disclosed using a vessel adapted to contain the standard three phases of a sewage treatment, aeration, settling and clarification. The vessel of this invention uses an inverted, centrally located funnel section to recei... | 11/18/1997 |
