With Gas-liquid Surface Contact Means Patents (Class 210/150)
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Patent number: 8951412Abstract: A novel lagoon aeration treatment system is provided which can be used with existing or new wastewater lagoons to increase the lagoon's treatment efficiency and capacity, and to allow for a continuous, year round discharge of treated wastewater to the environment. The system can be operated in warm and cold climates for treatment of municipal and industrial wastewaters of varying strength and flow rates in a secondary activated sludge treatment process, a tertiary activated sludge treatment process, or an extended aeration treatment process.Type: GrantFiled: May 13, 2009Date of Patent: February 10, 2015Inventor: Jan A. Korzeniowski
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Publication number: 20150034539Abstract: An apparatus for macroalgal attachment in an algae scrubber or seaweed cultivator comprising a set of discrete non-connected appendages extending from a support member such that the appendages receive water flow and illumination so as to cause macroalgae to attach to and grow on said appendages, whereby said macroalgal growth can be comb harvested to provide useful biomass or to remove nutrients from the water. Attachment textures and growth compartments are also claimed.Type: ApplicationFiled: March 8, 2013Publication date: February 5, 2015Inventor: Bryan H. Farrish
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Patent number: 8945378Abstract: A method for cleaning waste water is provided whereby the waste water is led through a throughput tank having filler materials to which aerobic microorganisms are adhered and wherein the throughput tank is ventilated with an oxygen-containing gas. As filler materials, materials are used which have a specific weight approximately equal to the specific weight of the waste water whereby the filler materials are suspended in the waste water. The inflow of the waste water into the throughput tank and the ventilation of the throughput tank is affected from bottom of the throughput tank and in such a gas amount that the waste water and the filler bodies suspended therein are mixed and the microorganisms on the filler bodies are supplied with sufficient oxygen. The device has a throughput tank with a tank bottom, a tank wall, wherein the inflow connecting pipe and the ventilation arrangement are arranged on the tank bottom and the outflow connecting pipe is arranged at the upper area of the throughput tank.Type: GrantFiled: June 16, 2010Date of Patent: February 3, 2015Inventor: Holger Blum
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Patent number: 8940159Abstract: The invention includes a method for the optimization of the soluble CO2 concentration in the aeration basin of an activated sludge system, which significantly improves the specific growth rate of the nitrifying bacteria. The result is a reduction in capital and energy costs for municipalities. The rate of nitrification is a product of the nitrifying bacteria biomass concentration and the specific growth rate of the bacteria. In the activated sludge system, the biomass concentration is maintained at high concentrations by reducing the wasting rate. The specific growth rate is a function of the ammonium concentration and the environmental conditions. Here, the inventors show that growth of nitrifying bacteria is inhibited when the soluble CO2 concentration is elevated beyond certain parameters. Elevated soluble CO2 concentration also reduces the pH, which also impacts the rate of growth of nitrifying bacteria.Type: GrantFiled: August 28, 2013Date of Patent: January 27, 2015Assignee: University of South FloridaInventors: Peter George Stroot, Raymond Anthony Morris
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Patent number: 8940170Abstract: A dual-chambered horizontal flow water treatment system and method provides a first chamber with a first filtration system connected with a second chamber with a second filtration system in a horizontal orientation, such that influent water first passes through the first chamber and then passes through the second chamber. The influent water moves through the first chamber and second chamber in a horizontal flow path to provide for pre-filtering with the first filtration system before traveling through granular media in the second filtration system.Type: GrantFiled: September 23, 2011Date of Patent: January 27, 2015Assignee: Modular Wetland Systems, Inc.Inventors: Greg B. Kent, Zach J. Kent
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Publication number: 20150014246Abstract: Wastewater treatment plants and processes for treating wastewater are described. The wastewater treatment plant utilizes channel plug flow dynamics with attached growth media and pure oxygen or mixtures of pure oxygen and compressed air.Type: ApplicationFiled: March 14, 2014Publication date: January 15, 2015Inventor: A. Frank MCFADDEN
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Publication number: 20150001149Abstract: The present invention relates to improved wastewater treatment systems and methods. In one embodiment, the present invention utilizes microbial consortia and the final effluent of the treated wastewater is remarkably clean, and has low levels of hazardous chemicals, unwanted nutrient values and/or total solids. Advantageously, the wastewater treatment system and method of the present invention reduces the use of chemical compounds in the treatment process. Further, valuable biomasses can be produced from the wastewater using the treatment process of the present invention.Type: ApplicationFiled: March 13, 2014Publication date: January 1, 2015Applicant: KUEHNLE AGROSYSTEMS, INC.Inventors: ADELHEID R. KUEHNLE, MARTIN JOHNSON, ROBERT J. SCHURR
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Patent number: 8919744Abstract: The aquaculture pond aeration system is essentially comprised of a “u” shaped conduit that extends below the pond bottom. A sparger assembly is positioned below the pond bottom in the outlet side of the conduit. The sparger emits air into the outlet side of the conduit thereby aerating the water and causing a hydrostatic pressure imbalance between the inlet side and the outlet side of the conduit. The pressure imbalance causes the pond water to circulate through the conduit and thereby aerate the aquaculture pond.Type: GrantFiled: August 10, 2011Date of Patent: December 30, 2014Assignee: The United States of America as represented by the Secretary of AgricultureInventors: Travis W. Brown, Eugene L. Torrans
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Patent number: 8920651Abstract: In some embodiments, a wastewater treatment system may reduce contaminants in water. A system may include one or more bioreactors which include a substrate that supports a biofilm. The bacteria used to form the biofilm may be selected to maximize the reduction of contaminants in water. Various components of the wastewater treatment system may be optimized to improve the efficiency and energy consumption of the wastewater system.Type: GrantFiled: November 8, 2012Date of Patent: December 30, 2014Assignee: Sam Houston UniversityInventor: Michael D. Rainone
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Patent number: 8920642Abstract: A biological wastewater treatment system is provided comprising a watertight basin and a filter. The basin has an open top and is configured for being placed on a substrate. The filter is located in the basin and includes five layers, each layer configured for removing biological contaminants from water traveling therethough. A first perforated pipe is located in the second layer and is connected to a second perforated pipe located in the fourth layer. If the third layer becomes clogged and prevents the passage of water, the water in the second travels into the first perforated pipe and exits the second perforated pipe in the fourth layer. In this manner, the third layer is bypassed, and the treatment system can be used despite the clogging of the third layer.Type: GrantFiled: January 27, 2014Date of Patent: December 30, 2014Inventor: Glenn Helm
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Publication number: 20140360934Abstract: Aerator kit comprising a body defining a fluid-flow channel, and a nozzle insert disposed inside said body as such forming together a venturi aerator which is useful for aerating aqueous waste. The aerator can be used submerged as a part of an aerobic digester, in which gas or air flow into the nozzle inlet while drawing liquid through a peripheral hole in the aerators body and cause mixing. The aerator can be also used as an above ground aerator in which liquid is pumped into the nozzle inlet while drawing air through said peripheral hole. In an another embodiment the aerator could be also used for adding additive to a gas or liquid.Type: ApplicationFiled: December 19, 2012Publication date: December 11, 2014Applicant: ARIEL-UNIVERSITY RESEARCH AND DEVELOPMENT COMPANY, LTD.Inventors: Yaakov Anker, Adi Nocham
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Publication number: 20140353248Abstract: There is provided a shaped article made of porous hydrogel that contains a polyvinyl alcohol acetalized with a dialdehyde, wherein the shaped article after freeze-drying has a pore size of 0.1 to 50 ?m. Preferably, the shaped article made of porous hydrogel further contains a water-soluble polysaccharide. Also preferably, an acetalization degree of the polyvinyl alcohol is 1 to 50 mol %. Also preferably, the shaped article made of porous hydrogel is in the form of particles with a sphere-equivalent diameter of 1 to 20 mm. Such a shaped article made of porous hydrogel exhibits high strength and good survivability of microorganisms.Type: ApplicationFiled: December 26, 2012Publication date: December 4, 2014Applicant: KURARAY CO., LTD.Inventors: Tatsuya Oka, Arata Ishiodori, Mototsugu Yoshihara
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Publication number: 20140353259Abstract: The present invention relates to a device, particularly a nozzle, for treating waste water, said nozzle having an outer tube and an inner tube. An intermediate space is formed between the outer tube and the inner tube and said intermediate space between the outer tube and the inner tube is divided into at least two chambers in the longitudinal direction of the tubes. The inner tube tapers in the longitudinal direction and then widens again and has at least one opening into each chamber at the constricted area. On the inner side of the inner tube and/or in the interior thereof, the device preferably has a catalyst. The present invention further relates to a method for oxidising polluted waste water and a system for performing the method.Type: ApplicationFiled: December 14, 2012Publication date: December 4, 2014Inventor: Sven Strunk
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Patent number: 8894849Abstract: An improved upward flow constructed wetland cell for treatment of water contaminated with chlorinated aliphatics is disclosed. The improvements include adding ammonia-oxidizing microorganisms to the methane-oxidizing microorganisms already present in an oxygenated root zone and adding improved pore-water sample chambers for measuring the performance of the constructed wetland cell.Type: GrantFiled: March 5, 2012Date of Patent: November 25, 2014Assignee: The United States of America as represented by the Secretary of the Air ForceInventors: Michael Shelley, Abinash Agrawal, Ke Qin, Garrett Struckhoff, Carl Enfield, James Waldron, Christina Powell
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Patent number: 8894862Abstract: In a water environment in conjunction with one or more types of oil, a method of in-situ burning including placing a fire resistant sorbent material in contact with the oil and allowing the oil to wick into the sorbent material. The method further includes burning the oil using the sorbent material as a wick.Type: GrantFiled: February 6, 2013Date of Patent: November 25, 2014Assignee: Walden Ventures, LLCInventor: Michael A. Champ
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Patent number: 8889006Abstract: A wastewater treatment system includes an outlet barrier for controlling a flow of wastewater from a treatment zone to an outlet from the wastewater environment. An immersed support structure is disposed in the treatment zone for supporting aquatic plants in the wastewater environment. The support structure has adjustable buoyancy such that a position of the support structure relative to the upper surface of the wastewater in the treatment zone may be adjusted by adjusting the buoyancy of the support structure.Type: GrantFiled: March 14, 2013Date of Patent: November 18, 2014Inventor: Leon A. Lassovsky
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Patent number: 8877045Abstract: Embodiments of a water treatment unit are disclosed. An embodiment of a water treatment unit according to the present disclosure comprises a generally vertical riser having a lower end and an upper end, at least one inlet adjacent the lower end, and at least one outlet adjacent the upper end, a substantially spherical housing surrounding the riser, the housing comprising at least one opening in a lower portion of the housing, the housing enclosing a chamber, a motor coupled to the housing, a shaft coupled to the motor, the shaft extending downward from the motor within the riser, the shaft being in general axial alignment with the riser, at least one propeller coupled to the shaft, and a biomedia material within the chamber.Type: GrantFiled: August 27, 2012Date of Patent: November 4, 2014Assignee: Bradley Innovation Group, LLCInventors: James Bradley, William Blythe
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Patent number: 8840783Abstract: A method of cleaning a membrane surface immersed in a liquid medium with a fluid flow, including the steps of providing a randomly generated intermittent or pulsed fluid flow along the membrane surface to dislodge fouling materials therefrom. A membrane module is also disclosed comprising a plurality of porous membranes (6) or a set of membrane modules (5) and a device (11) for providing a generally randomly generated, pulsed fluid flow such that, in use, said fluid flow moves past the surfaces of said membranes (6) to dislodge fouling materials therefrom.Type: GrantFiled: February 12, 2013Date of Patent: September 23, 2014Assignee: Evoqua Water Technologies LLCInventors: Fufang Zha, Gerin James, Joseph Edward Zuback, Peter Zauner, Roger William Phelps
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Publication number: 20140263045Abstract: In one embodiment, a method includes gasifying a fuel source using a first oxygen stream supplied from an air separation unit (ASU), discharging a gasifier blowdown from a gasification and scrubbing system configured to gasify the fuel source, generating a grey water from the gasifier blowdown, and biologically treating the grey water in a reactor using a second oxygen stream supplied by the ASU.Type: ApplicationFiled: March 12, 2013Publication date: September 18, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Anindra Mazumdar, Dinh-Cuong Vuong, James Scott Kain, Paul Roberts Scarboro
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Publication number: 20140263096Abstract: The present invention provides a liquid handling system comprising a reactor, wherein the reactor is structured such that it contains a gaseous phase and an aqueous phase, both phases being in contact with a heterogeneous hydrogenation catalyst immobilised or suspended within the aqueous phase, wherein the gaseous phase comprises hydrogen and wherein the aqueous phase comprises (i) a solution of amines; and (ii) nitrosamine and/or nitramine compounds resulting from amine-based gas sweetening processes. The invention further relates to a process for in-situ destruction of compounds in the aqueous phase from a scrubber system, wherein the process comprises contacting the aqueous phase with a gas phase comprising hydrogen and a heterogeneous catalyst, wherein the aqueous phase comprises (i) a solution of amines; and (ii) nitrosamine and/or nitramine compounds resulting from amine-based gas sweetening.Type: ApplicationFiled: June 13, 2012Publication date: September 18, 2014Applicant: SINVENT ASInventors: Kolbjørn Zahlsen, Bernd Wittgens, Aslak Einbu
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Publication number: 20140251903Abstract: The present invention relates to improving the results of anaerobic digestion of organic waste especially animal manure such as chicken manure by removing the grit in the waste. by digesting the waste in a slurry at a temperature of 50 degrees C. or more for a period of time sufficient for the grit to settle out of the slurry.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Inventor: Jason Chia Hsing Shih
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Publication number: 20140251882Abstract: A segmented, stackable wastewater treatment apparatus suitable for small remote and temporary camps is provided. The segments are typically flat cylindrical in shape and contain permanent biofiltration medium such as absorbent foam. They are transported to site in small vehicles or aircraft and assembled into a stack to treat the sewage. After use, they are disassembled into the component segments, which are then transported by small vehicles or aircraft to the next site, re-assembled in a stack, and re-used.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Inventor: E. Craig JOWETT
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Publication number: 20140238933Abstract: Numerous different types of waste compositions generally in an aqueous environment are bio-remediated under aerobic conditions utilizing highly diverse and multiple microorganisms within a reactor. The process is carried out with the microorganisms attached or bound by a variety of different surface characteristics to packing substrates, located within the reactor, having high surface areas and high porosity in the form of small micropores. Multiple different types of substrates are generally utilized that efficiently dissolve air into the water, as well as to maximize the concentration and diversity of types of microorganisms. Reactors are utilized that desirably have tubes therein containing the multiple types of packings and microorganisms and contain at least one perforated chimney through which air can flow and optimize dissolving oxygen into the aqueous environment of the various bio-remediation stages.Type: ApplicationFiled: February 28, 2013Publication date: August 28, 2014Applicant: IMET CORPORATIONInventors: MEHMET A. GENCER, KAAN GENCER, PAUL M. ZAKRISKI
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Publication number: 20140202954Abstract: A wastewater treatment system includes an outlet barrier for controlling a flow of wastewater from a treatment zone to an outlet from the wastewater environment. An immersed support structure is disposed in the treatment zone for supporting aquatic plants in the wastewater environment. The support structure has adjustable buoyancy such that a position of the support structure relative to the upper surface of the wastewater in the treatment zone may be adjusted by adjusting the buoyancy of the support structure.Type: ApplicationFiled: March 14, 2013Publication date: July 24, 2014Inventor: Leon A. Lassovsky
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Publication number: 20140202965Abstract: It is an object to provide a method for killing aquatic organisms in liquid by which aquatic organisms in liquid can be killed at low cost, and the object is attained by a method including a first step of generating microbubbles in a range of 4 to 100 ?m from bubbles containing ozone discharged into liquid in a pipe, a second step of forcibly crushing the microbubbles in the pipe generated at the first step to generate OH radicals as a result of crushing of the microbubbles themselves due to the forcible crushing, and a third step of generating OH radicals as a result of dissolution and decomposition of the ozone contained in the microbubbles in the liquid due to the forcible crushing of the microbubbles, wherein the OH radicals generated at the second and third steps, OH radicals generated as a result of self-crushing of the microbubbles themselves in the liquid in the pipe, and OH radicals generated as a result of dissolution and decomposition of the ozone contained in the microbubbles in the liquid due toType: ApplicationFiled: May 31, 2012Publication date: July 24, 2014Applicant: MITSUI ENGINEERING & SHIPBUILDING CO., LTD.Inventors: Kenichi Honda, Ryoichi Miyanabe, Shuji Ueki
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Patent number: 8784658Abstract: The present invention relates to a process for treating wastewater that includes the steps of: —a contact step, wherein wastewater contacts bacteria retained on a support surface and the dissolved oxygen concentration of the wastewater is maintained at 2.0 mg/l or less; an aeration step, wherein gas is passed through wastewater that has passed through the contact step and the dissolved oxygen concentration of the wastewater is reduced as the wastewater passes through the aeration step; a sedimentation step, wherein wastewater that has passed through the aeration step is substantially separated into treated water and sludge; and a sludge recycling step, wherein sludge from the sedimentation step is passed to the contact step. The invention also relates to a processing unit on which the aforementioned process may be operated.Type: GrantFiled: November 14, 2008Date of Patent: July 22, 2014Assignee: Bluewater Bio Technologies LimitedInventor: Garry Hoyland
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Patent number: 8764986Abstract: A system and method are provided for removal of undesirable substances from a body of liquid. The system can include an aeration structure having a continuously inclined surface configured to provide an interaction of air bubbles against substantially an entire length of the continuously inclined surface while the air bubbles are moving toward a top of the body of liquid. The continuously inclined surface can be substantially submerged in the body of liquid. A bio-film of diverse bacteria colonies is disposed on the continuously inclined surface, and a high surface area-to-volume structure is located in proximity to the aeration structure, upon which a bio-film of bacteria colonies can be formed.Type: GrantFiled: December 22, 2009Date of Patent: July 1, 2014Assignee: University of Utah Research FoundationInventors: Kraig Johnson, Lawrence D. Reaveley, Fred Jaeger, Hua Xu, Joyce A. Okey
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Publication number: 20140166574Abstract: A biological filtration system includes a reservoir configured to receive an aqueous liquid, a multiplicity of polymeric container closures in the reservoir, a fluid inlet fluidically coupled with the reservoir, and a fluid outlet fluidically coupled with the reservoir. The fluid inlet is configured such that an aqueous liquid provided to the reservoir via the fluid inlet contacts the multiplicity of polymeric container closures. The polymeric container closures support biofilm growth. Treating the aqueous liquid provided to the biological filtration system includes contacting the polymeric container closures with the aqueous liquid, growing biofilm on the polymeric container closures in contact with the aqueous liquid, thereby removing contaminants from the aqueous liquid to yield a treated aqueous liquid, and removing the treated aqueous liquid from the biological filtration system.Type: ApplicationFiled: December 18, 2013Publication date: June 19, 2014Inventor: Alexander Fassbender
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Publication number: 20140166559Abstract: A microbial attachment means with consistent physical properties and non-degradable material suitable for submerged or free-draining filtration of wastewater is provided in the present invention. The material is used in the construction and landscaping industries and is readily available and cost-effective. It consists of a web or mesh of loosely overlapping polymeric filaments forming sheets with small three-dimensional topographic undulations or “hill and valley”, corrugated morphology. The sheets are configured into a variety of shapes that form an isometric matrix of irregular filaments as protected surface area for microbial attachment, and with intervening large pores for water and air circulation.Type: ApplicationFiled: December 18, 2013Publication date: June 19, 2014Applicant: ROWANWOOD IP INC.Inventors: E. Craig Jowett, Christopher Richard James
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Patent number: 8753505Abstract: An apparatus for treating a liquid includes a first flow generator having an outlet for generating a first flow stream and a reaction chamber positioned in proximity to the outlet of the first flow generator and having a cavity adapted to receive the first flow stream from the first flow generator and reverse its direction within the confined space of the cavity. The flow generator may be a cavitation generator for producing multiple cavitation bubbles in the first slow stream, or a nozzle for generating a flow stream devoid of cavitation bubbles. A method for treating a liquid includes directing the liquid into a first flow generator configured to generate a first flow stream of the liquid, and directing the first flow stream from the first flow generator into a cavity of a reaction chamber.Type: GrantFiled: June 26, 2009Date of Patent: June 17, 2014Assignee: Fluid-Quip, Inc.Inventor: Allison Sprague
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Publication number: 20140158614Abstract: Described herein are methods and devices for biologically treating water and/or wastewater. The methods and devices for treating wastewater may be enhanced using an surge lifting device which moves water and/or solids using volumes of air (for liquid transfer and mixing) and the automatic sludge return mechanism, combined with alternating aeration on and off operation to achieve comprehensive nitrogen and phosphorus removal. This surge lifting device can provide occasional surges of water using large bubbles which are able to move great volume of liquid while minimizing dissolved oxygen transfer to the surrounding liquid. Use of the devices and processes herein provides a simple, eloquent approach to wastewater treatment with less operation and maintenance costs than conventional devices and/or processes. The same surge lifting device can also be installed in an anaerobic digester, and use the biogas generated below the device to automatically mix the digester, without external energy input.Type: ApplicationFiled: May 10, 2013Publication date: June 12, 2014Inventor: Jianmin Wang
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Patent number: 8741100Abstract: A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator.Type: GrantFiled: July 13, 2012Date of Patent: June 3, 2014Assignee: Heartland Technology Partners LLCInventor: Bernard F. Duesel, Jr.
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Patent number: 8741101Abstract: A liquid concentrator having an evaporator assembly and a cyclonic separator includes features designed to improve the performance of the liquid concentrator. A settling chamber is separated from a sump of the cyclonic separator. A liquid inlet opening into a mixing chamber of the evaporator injects wastewater at low pressures. Features to aid in the cleaning of the liquid concentrator include easy open doors and clean water injection ports for cleaning interior portions of the liquid concentrator. In one feature a settling tank is disposed below the cyclonic separator and has a width that is larger than the width of the cyclonic separator. In another variation, the cyclonic separator has a tubular body with an interior that is substantially unobstructed between an inlet from the evaporator assembly and an exhaust outlet. In yet another variation, the cyclonic separator has an upper chamber that is separated from a lower chamber.Type: GrantFiled: July 13, 2012Date of Patent: June 3, 2014Assignee: Heartland Technology Partners LLCInventor: Bernard F. Duesel, Jr.
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Patent number: 8734727Abstract: Apparatus for the production of a product gas (eg hydrogen and ozone) comprises: a supply of reactant gas (eg oxygen and steam) (14); a pair of electrodes (24) with a space between them of less than 1 mm (28); a conduit to lead the reactant gas from the source through the space between the electrodes; a power source (26) to apply a voltage across the electrodes to dissociate the reactant gas and ultimately permit formation of product gas; and a conduit (40) to supply the product gas to an outlet. A sterilization unit for water treatment employs such apparatus and includes a fluidic oscillator to oscillate the flow of oxygen and/or ozone, and wherein said outlet comprises a plurality of orifices (42) to be submerged in said water and for the purpose of forming micro bubbles of ozone. An analyzer for detecting large organic molecules in eg air can employ the ozone generator to breakdown the large molecule into simpler and easier-to-detect-and-identify molecules.Type: GrantFiled: January 6, 2010Date of Patent: May 27, 2014Assignee: Perlemax Ltd.Inventors: William Bauer Jay Zimmerman, Jaime Humberto Lozano Parada
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Publication number: 20140138310Abstract: A device for sewage treatment including a reactor and a magnetic field generator. The reactor includes a water inlet at the upper end, a water outlet on the side wall, and a sludge outlet at the lower end. A stirrer and an aeration device are disposed in the reactor. The reactor is filled with magnetic powder and activated sludge. The magnetic field generator includes a magnetic field tester, an iron cover, a power supply, a transformer, and a spiral coil. The spiral coil loops around the outer surface of the reactor. The transformer, the spiral coil, and the power supply are connected in sequence. The iron cover surrounds the periphery and the bottom of the reactor, and the magnetic field tester is disposed within the reactor. A method for sewage treatment using the device is also provided.Type: ApplicationFiled: June 20, 2013Publication date: May 22, 2014Inventors: Hongqiang REN, Chuan NIU, Jinju GENG, Ke XU
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Patent number: 8721888Abstract: A wastewater treatment method using annularly arranged microorganism carriers in a reaction tank, which defines therein an upper reaction area, a lower reaction area and a passage area surrounded by the microorganism carriers and kept in communication between the upper reaction area and the lower reaction area. Microorganisms including nitrifying bacteria and autotrophic denitrifying bacteria are attached to the surface of each microorganisms carriers and suspending in the water of the reaction tank for causing Anammox reaction to convert NH4+ and NO2? in wastewater into nitrogen gas, achieving removal of total nitrogen compounds from water. The microorganism carriers are used to retain microorganisms in the reaction tank, enhancing the treatment efficiency.Type: GrantFiled: September 1, 2011Date of Patent: May 13, 2014Assignees: Leaderman & Associates Co., Ltd., National Chiao Tung UniversityInventors: Der-Ming Lee, Ming-Kuei Chiang, Chin-Te Chen, Keng-Chuan Sung, Jih-Gaw Lin, Sin-Han Su
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Publication number: 20140124420Abstract: A water quality purification system for a hybrid artificial wetland includes a first aerobic artificial wetland, an anaerobic artificial wetland, and a second aerobic artificial wetland. Here, the first aerobic artificial wetland induces a vertical flow of water, which is to be purified, and allows pollutants to be removed. The anaerobic artificial wetland induces a horizontal flow of treated water which is introduced from the first aerobic artificial wetland, and allows pollutants to be further removed. Additionally, the second aerobic artificial wetland induces a vertical flow of treated water which is introduced from the anaerobic artificial wetland, and allows air to be supplied inwardly such that the amount of dissolved oxygen of the introduced treated water increases.Type: ApplicationFiled: November 30, 2011Publication date: May 8, 2014Applicants: KORBI CO., LTD., SUNG IL EN-TECH CO.LTD.Inventors: Sung Chul Kim, Gwang Ju Cho, Goo Hyeon Park, Moon Sik Hyun, Hee Jin Yang, Seol Hee Han
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Publication number: 20140124438Abstract: Installation and method for processing wastewater, comprising: a) providing wastewater for processing; b) reducing O2 content of said wastewater by unactivated aerobic digestion; c) subsequently to ‘b’, eliminating substantially all O2 from said wastewater by anaerobic digestion; d) subsequently to ‘c’, transferring said wastewater to a closed photobioreactor; and e) subsequently to ‘d’, maintaining said wastewater in said photobioreactor in conditions favorable for algal photosynthesis, thereby allowing algae to grow in said photobioreactor. A method for growing algae is also disclosed whereby time, density and flow speed are controlled. The photobioreactor may have a conduit with two proportions of different cross sections.Type: ApplicationFiled: June 5, 2012Publication date: May 8, 2014Applicant: Ariel-University Research and Development Company, LtdInventors: Yaakov Anker, Erez Katz
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Publication number: 20140120018Abstract: A process and apparatus to remove and breakdown volatile organic compounds from drinking water, groundwater, wastewater, frack water and air exhaust. The process entails filling a tank, chamber, pipe, or column with ozone-containing gas, introducing into this ozone-containing gas-filled tank, chamber, pipe or column, very small droplets of water, contaminated with volatile organic compounds which then volatilize out from the water and break down in the ozone gas thereby improving the water quality and associated air quality. The current invention has been shown to achieve more than 99% combined removal efficiency. The process can also be used to treat air streams containing volatile organic compounds. To increase efficiency, ozone is introduced where the atomized particles are smallest. Three configurations utilizing said process include upward and downward spray of contaminated water into ozone and pumping through openings in an enclosure to a reaction chamber filled with ozone-containing gas.Type: ApplicationFiled: October 25, 2012Publication date: May 1, 2014Inventors: Marcia Jada Berger, Isaac Wayne Anderson
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Publication number: 20140097132Abstract: The present invention relates to membrane bioreactor (“MBR”) system that includes a mechanical membrane reciprocation system to reduce or eliminate membrane fouling. The disclosed MBR system can be operated with higher flux and lower fouling than MBR systems using air scouring. Furthermore the system can remove nitrogen and phosphorous with one RAS and one or no internal recirculation line. The membrane can be reciprocated by a low RPM motor connected to a pulley via belt to rotate rotor to convert rotational motion into reciprocating motion of membrane. Various mechanical means can also be employed to create the reciprocating motion.Type: ApplicationFiled: April 30, 2013Publication date: April 10, 2014Inventor: Doosan Heavy Industries & Construction Co., Ltd.
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Publication number: 20140097137Abstract: A coupling bioreactor in the form of a tower type seal structure filled with a suspended carrier. A water inlet pipe, an air inlet pipe, and a first microporous aerator are arranged at the bottom of the coupling reactor. The water inlet pipe is connected to a water distributor. The air inlet pipe is connected to the first microporous aerator. A gas inlet pipe and a second microporous aerator are arranged at the middle part of the coupling bioreactor and are connected with each other. An annular overflow weir is arranged at the upper part of the coupling bioreactor and is connected to a water outlet pipe. A gas outlet pipe is arranged at the top of the coupling bioreactor. The ratio of the height to the diameter of the coupling bioreactor is between 3 and 10.Type: ApplicationFiled: June 5, 2013Publication date: April 10, 2014Inventors: Hongqiang REN, Ke XU, Lili DING, Jinju GENG
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Publication number: 20140097136Abstract: The present invention relates to a composite microorganism reactor, wherein both dephosphorization and denitrification occur in one reactor, and an apparatus and a method for water treatment using the same.Type: ApplicationFiled: April 17, 2012Publication date: April 10, 2014Applicant: DAEWOONG ECOSYSTEMS AND SOLUTIONInventors: Kwang Jae Woo, Yeon Gil Kim
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Patent number: 8691093Abstract: An anaerobic waste treatment apparatus comprises a container wherein randomly oriented bio-film media are disposed. An example waste treatment apparatus includes a container and optionally has at least two zones of bio-film media that are disposed within the container. In one example, the bio-film media includes torus-shaped materials, or other materials with voids therein, and the container is a dug out portion of earth. Moreover, the anaerobic waste treatment apparatus may additionally comprise a waste pump that is coupled to a waste pipe and configured to introduce waste into the container at one or more locations. When two zones are included, one zone may be randomly oriented, while a proximate zone may be substantially horizontal and/or an organized zone. The random zone may also have a transition layer thereon that supports the organized zone or that provides an interface between the organized and random zones.Type: GrantFiled: December 1, 2010Date of Patent: April 8, 2014Assignee: J-U-B Engineers, Inc.Inventor: Troy M. Green
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Patent number: 8691092Abstract: An apparatus for creating floating wetlands and improving water quality is provided. The apparatus includes a lower retainer; an upper retainer; a floatable waste material disposed between the lower retainer and the upper retainer; and an organic material planted between the lower retainer and the upper retainer; wherein the organic material is configured to denitrify the water source. A method of making a floating wetland device is also provided.Type: GrantFiled: July 7, 2010Date of Patent: April 8, 2014Assignee: Biohabitats IncorporatedInventor: Christopher A. Streb
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Publication number: 20140083918Abstract: Soak vessels for impregnating biomass with a liquid such as a dilute acid and methods for impregnating biomass are disclosed. In some embodiments, the soak vessel includes an impeller assembly with impellers that create a vortex to submerge the biomass, that agitate and separate contaminants from the biomass and that direct biomass and contaminants to separate vessel outlets.Type: ApplicationFiled: September 24, 2012Publication date: March 27, 2014Applicant: ABENGOA BIOENERGYInventors: Quang A. Nguyen, Weidong He, Leroy D. Holmes
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Publication number: 20140083941Abstract: A biological reactor for treating wastewater. The reactor includes a gas injection system and a system for directing wastewater into the reactor. Further, the reactor includes a biological filter comprised of a packed bed of biofilm carriers and a volume of moveable biofilm carriers. During the method of treating the wastewater, the wastewater moves upwardly through the reactor and through the biological filter while gas is emitted from the gas injection system.Type: ApplicationFiled: April 3, 2012Publication date: March 27, 2014Applicant: Veolia Water Solutions & Technologies SuportInventors: Xavier Le Tallec, Morten Lindegaard
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Patent number: 8679327Abstract: The bioretention box includes a vault, a lid and a removable grate positioned within the lid, the combination of the vault, lid and grate being positionable with a dugout subgrade region and capable of supporting vehicular traffic within a parking area. Within the bioretention box is a treatment region to remove contaminants from storm water ingress. The treated water moves through openings in the bottom of the vault or through pipes to outside the vault, to a storm drain. The bioretention box includes overflow pipes which accommodate heavy storm water flows.Type: GrantFiled: April 5, 2011Date of Patent: March 25, 2014Assignee: BCRA EngineeringInventors: Donald G. Mellott, James B. Dort, Danielle J. Santman
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Publication number: 20140076803Abstract: A method and system for ballast water treatment is provided for a vessel with a ballast water tank system that pumps water from a local environment through a conduit into at least one tank on the vessel. The water contains aerobic micro-organisms from the local environment. Oxygen-containing gas is introduced into the water as it is pumped through the conduit. Living organisms are added into the water with the oxygen-containing gas introduced therein. As a result, the tank receives a mixture of the water with the oxygen-containing gas introduced therein and the living organisms added thereto. The living organisms are selected to consume (i) the aerobic micro-organisms, (ii) oxygen dissolved in the water, and (iii) food sources for the aerobic micro-organisms contained in the water. A vacuum is applied to the tank's ullage space at a point in time after the mixture is received in the tank.Type: ApplicationFiled: September 17, 2013Publication date: March 20, 2014Applicant: Sea Knight CorporationInventors: William M. Lechler, Claude R. Thompson
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Patent number: 8673140Abstract: In an apparatus for treating wastewater, e.g sewage water, the water passes through absorbent material. The material comprises e.g inexpensive scraps or off-cuts of plastic foam. The pieces of material are contained by being stuffed into lengths of plastic mesh tubing, which are then formed into closed-ended socks. The socks are stacked in layers, and the water to be treated is trickled down through the layers. The socks can also advantageously be used for anaerobic and submerged treatment of wastewater.Type: GrantFiled: November 30, 2009Date of Patent: March 18, 2014Assignee: Rowanwood IP Inc.Inventors: E. Craig Jowett, Christopher Donald Jowett
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Patent number: 8663464Abstract: Apparatus and methods for enhanced electrocoagulation processing using enhanced membrane aeration are disclosed for effluent treatment. The apparatus has an enrichment means for establishing an ion rich air/gas stream and a membrane aerator for receiving the ionized air/gas stream and effluent to be treated. An ionized air/gas rich effluent feed stream flows out of the membrane aerator and is received at an electrocoagulation processing assembly for diffused ion enhanced electrocoagulation treatment.Type: GrantFiled: July 31, 2008Date of Patent: March 4, 2014Inventors: Reginald A. Wiemers, Robert Kohlheb, Peter H. Zahn