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6863818 |
Method and apparatus for treating wastewater using membrane filters
An apparatus using activated sludge for the removal of biological nutrients from a wastewater includes a bioreactor for containing a mixture of wastewater under treatment and activated sludge. The...
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6863810 |
Wastewater aeration system with lift out lateral pipes and diffusers
A wastewater aeration system that can be pivoted upwardly to expose the treatment basin floor for removal of accumulated grit or other solids. The aeration system includes a blower and a rigid or...
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6843908 |
Multistage immersion type membrane separator and high-concentration wastewater treatment facility using same
A multistage immersion type membrane separator in which an air diffuser is disposed under a filtration part immersed in a treatment tank, characterized in that: the filtration part has plural...
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6841070 |
Apparatus and method for cleaning membrane filtration modules
A method and apparatus for cleaning a membrane module, the membrane module having a plurality of porous membranes, the membranes being arranged in close proximity to one another and mounted to...
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6830679 |
Filtration device
A filtration device is provided in which wastewater, in the form of a colloidal solution containing microparticles, is guided to tank, circulated, and filtrated using a second filter. The device...
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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...
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6818136 |
Groundwater remediation system
A process where gas bubbles are produced under a partial vacuum and are dynamically agitated creating a vortex that allows for homogenization of the gas desired for dissolution into the affected...
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6802975 |
Method for biological effluent treatment
The invention relates to a method of biological treatment of wastewater by means of activated sludge, wherein the wastewater is introduced first into an aerated activated sludge tank (B tank) and...
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6793813 |
Sealed filtration system
A sealed filtration system includes a housing, having two chambers, that can be submerged. One chamber houses a plurality of subchambers in which various filter media are located, and the other...
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6793816 |
Equipment for the leaching of solid matter from sludge
The present invention concerns equipment for the leaching of solid matter from a sludge with the aid of a gas containing oxygen, the said equipment comprising a tall reactor ( 1 ) equipped with a...
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6787035 |
Bioreactor for treating wastewater
A bioreactor that has an internal sludge return function for treating wastewater is provided. Said bioreactor comprises a mixing zone ( 18 ), a static zone ( 28 ), and a mixed liquor circulation...
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6783671 |
Enhanced activated sludge treatment
An enhanced activated sludge wastewater treatment method increases volumetric pollutant loading, hydraulic loading capacity and nutrient removal efficiency at a conventional activated sludge...
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6780319 |
Method and installation for treating effluents, comprising an additional treatment of the sludge by ozonization
Method of purifying wastewater charged with organic matter which comprises a step of biologically treating the water, during which the organic matter contained in the water is degraded by...
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6773598 |
Method and apparatus for biodegradation of oxygenates
The present invention provides a method of treating groundwater or other water stream(s) contaminated with an oxygenate to degrade said oxygenate which comprises: a) inoculating a biodegrader...
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6770206 |
Method and apparatus for handling liquid waste in a wet-well
An apparatus for preventing formation of a solid or semi-solid surface layer in liquid waste contained in a wet-well includes an air pump adapted to pump air into the wet-well and an air pump...
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6767455 |
Airlift membrane device and membrane bioreactor and bioreactor process containing same
A submerged, vertically-mounted membrane device, the device receiving a gas-sparged feed stock at a bottom feed inlet to provide airlift circulation of the feed stock through the device and...
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6755623 |
Floating pump assembly
A floating pump assembly including a compact floatation assembly structured to float on a body of water and supporting a flow pump housing having an inlet, outlet and fluid drive assembly being...
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6752921 |
Bioreactor tank internally chambered to sequentially perform biological treatment and membrane filtration
Wastewater is delivered to a single tank of a bioreactor system to undergo biological treatment. After undergoing such biological treatment, the wastewater is centrifugally separated outside the...
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6743353 |
Method and apparatus for neutralizing alkaline wastewater without using mineral acids
In this neutralizing apparatus, aerobic microorganisms are propagated on a vinylidene chloride packing material 10 provided in a neutralization tank 3 . The aerobic microorganisms produce nitric...
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6743357 |
Waste stream digestion system
Disclosed is a system and method of digesting raw animal waste using diffusers to force circulation and aerate a digesting lagoon. Several lagoons may be used in series to treat raw waste and...
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6733671 |
Apparatus for treating fluids
Treatment apparatus comprising a chamber ( 11 ) for treatment of a process fluid and having at least two regions in each of which the process fluid is caused to follow a circulating path, in which...
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6733662 |
Methods and apparatus for biological treatment of waste waters
In a vertical shaft bioreactor, improved devices and methods are provided for enhanced secondary and/or tertiary treatment of wastewater, including residential, municipal and industrial wastewater....
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6730225 |
Wastewater treatment system and method
A system and method for treating wastewater including: delivering untreated wastewater into a permeable container disposed in an impoundment. A wastewater input moves untreated wastewater to the...
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6730224 |
Advanced aerobic thermophilic methods and systems for treating organic materials
An improved method for the aerobic thermophilic treatment of organic material of the type in which air is passed through organic matter contained in a reactor, in which at least a portion of the...
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6726838 |
Biofilm carrier, method of manufacture thereof and waste water treatment system employing biofilm carrier
A biofilm support including a plastic biofilm support element having a maximum dimension which does not exceed 50 mm and having a specific gravity of between approximately 0.70-0.91. A method of...
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6719897 |
Fluid treatment apparatus
Treatment apparatus comprising a treatment chamber ( 10 ), for receiving a process fluid, in which there are provided means for introducing gas ( 19, 20 ) at a low level within the chamber to...
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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....
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6692638 |
Method and apparatus for removing particulate contaminants from commercial laundry wastewater
A filtration apparatus includes a laundry waste sump, a primary 50 micron static screen filter, a 9,000 gallon equalization tank, at least one secondary media/carbon filter, a sludge holding tank...
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6676837 |
Solar aeration system
The present invention is a solar powered aeration system that incorporates a battery. The device can be used for improvement of water bodies for use in aquaculture systems, reservoirs, water...
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6669843 |
Apparatus for mixing fluids
An apparatus is provided for separation of suspended solid particles from fluids, for separation and mixing of fluids, and for dissolving gases in aqueous fluids. The apparatus employs a grooved...
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6666967 |
Defoaming and air-water treating device
An object of the present invention is to efficiently remove foam produced in water by the aeration. Further, another object of the present invention is to improve water and air. Said objects can be...
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6652743 |
System and method for removing pollutants from water
A system and method for removing pollutants from wastewater. The system includes a constructed wetland cell in which the filtered wastewater is flowed generally vertically. The flow of wastewater...
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6641724 |
Tangential separating device for solid matter
The invention relates to a device and a method for chemically and physically separating solid materials from a suspension using flotation. A rotationally symmetrical flocculation/flow reactor is...
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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...
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6626425 |
Gasification device
A gasification device is described for the introduction of a gas into a liquid, in particular of air into waste water. The gasification device has a blower body element, which carries a membrane...
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6616844 |
Method for treating high-concentrated organic wastewater using bio-maker
The present invention is related to a method for treating high-concentrated organic wastewater, such as night soil or livestock wastewater, which has high levels of nitrogen and phosphorous. In...
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6599426 |
High dissolved oxygen mixer-digester method
A sludge digesting method uses a mixing tank providing an integral ceiling, interior wall surface and a floor surface. A vertical beam supports a mixing device engaged for movement along the...
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6582596 |
Bioreactor systems for biological nutrient removal
An integrated biological treatment process and bioreactor system provides means for simultaneous removal of biodegradable solids (TSS), nitrogen (N) and phosphate (P) from water and wastewater. The...
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6569336 |
Method, device and use of said method for biological elimination of metal elements present in an ionized state in water
The method, in which the water to be treated is partly oxygenated by a specific aeration carried out before percolation through a biofilter having a bacteria-supporting bed of filtering material,...
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6557835 |
Apparatus for mixing and aerating liquid-solid slurries
An apparatus for dispersing a gas in a liquid or slurry has a reaction vessel with an inner zone for the downward flow of liquid, an outer zone for the upward flow of liquid, a plurality of...
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6554259 |
High dissolved oxygen mixer-digester
A sludge digester comprises a mixing tank providing an integral ceiling, interior wall surface and a floor surface. A vertical beam supports a mixing device engaged for movement along the vertical...
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6543753 |
Air diffuser membrane treated with biocide
A fine bubble diffuser membrane used in the aeration of wastewater is treated with biocide to inhibit growth and accumulation of biological materials on the membrane. The membrane may be...
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6540912 |
Aerobic polishing system for wastewater
An aerobic treatment system for wastewater is disclosed herein. The aerobic treatment system is comprised of a basin, which receives wastewater through an inlet pipe, the inlet pipe depositing the...
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6527948 |
Apparatus for purification of waste water and a “RFLR” device for performing the same
An embodiment of the present invention relates to a biological process for continues purification of wastewater by converting its constituents to a solid form that can be easily separated using...
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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...
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6514411 |
Process for controlling foam in a treatment reactor
The invention relates generally to a process and apparatus for treating biosolids resulting from the treatment of biological wastewater streams. The invention relates to autothermal aerobic...
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6500333 |
System and process for treating waste water
The present invention is generally directed to a process and system for treating animal waste. More particularly, the present invention is directed to a process and system for treating animal waste...
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6497819 |
Method and apparatus for treating waste water
A method for treating waste water and a plant designed for preventing the precipitation of carriers under the air blower installed for reaction tank or aeration tank, wherein the plant comprises an...
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6488850 |
Method and apparatus for anaerobically degrading pollutants with alkanes
A method and apparatus are disclosed in which alkanes such as butane are used to degrade pollutants such as tetrachloroethylene (PCE) and carbon tetrachloride (CT) at contaminated sites. In a...
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6485646 |
Process for the treatment of waste water containing ammonia
A process is described for the biological treatment of waste water containing ammonia, wherein the waste water is treated with sludge containing nitrifying bacteria in an aerated reactor, applying...
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