Utilizing Contact Surfaces Supporting Microorganism (e.g., Trickling Filter, Etc.) Patents (Class 210/615)
  • Patent number: 10669176
    Abstract: A system and method of treating wastewater. In one embodiment, the system comprises a biological reactor fluidly connected to a source of wastewater and having a treated wastewater outlet, a fixed film biological reactor connected to the source of wastewater and having a fixed film effluent outlet, and a ballasted system fluidly connected to the fixed film effluent outlet. The ballasted system may comprise a ballast reactor tank configured to provide a ballasted effluent, and a source of ballast material fluidly connected to an inlet of the ballast reactor tank. The system may further comprise a bypass line having an inlet fluidly connected to the source of wastewater, a first outlet fluidly connected to the ballasted system, and a second outlet fluidly connected to the fixed film biological reactor, the bypass line configured to bypass the fixed film biological reactor.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: June 2, 2020
    Assignee: Evoqua Water Technologies LLC
    Inventor: Sergio Andres Pino-Jelcic
  • Patent number: 10526223
    Abstract: A method for producing a microbiologic agent is described. The method includes a step of adding biomass containing a target compound-degrading microorganism and an inorganic microparticle carrier to a medium containing a target compound. The microorganisms included in the biomass are carried on the inorganic microparticles, and the medium is cultured while monitoring an abundance ratio of the target compound-degrading microorganism in microorganisms carried on the inorganic microparticle carrier. After the abundance ratio of the target compound-degrading microorganism reaches a predetermined value, the inorganic microparticle carrier carrying the target compound-degrading microorganism is collected to obtain the microbiologic agent.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: January 7, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Yosuke Nakamura, Eiji Nitta, Hiroyuki Asako, Fumiyoshi Okazaki
  • Patent number: 10245626
    Abstract: The present invention relates to a treatment system having a barium carbonate (BaCO3) dispersed alkaline substrate (BDAS) for use in the remediation or at least partial remediation of mine drainage (MD) and/or environmental media contaminated with a source of MD. The invention utilizes chemical, biological and combined treatment systems remove high concentrations of sulfates, hardness, heavy metals and N-compounds, that may exist in the MD as well as high concentrations of alkalinity produced during the remediation process. The invention further extends to a process for treating MD and/or environmental media contaminated with MD and to an apparatus for use in this process.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: April 2, 2019
    Assignee: UNIVERSITY OF THE FREE STATE
    Inventors: Esta Van Heerden, Julio Hernandez Castillo, Alba Gomez, Rohan Posthumus, Walter George Van Der Hoven
  • Patent number: 10243241
    Abstract: A lithium ion battery is provided that includes: a positive electrode; a negative electrode; a microporous polymer separator soaked in an electrolyte solution, the microporous polymer separator disposed between the positive electrode and the negative electrode; and a transition metal cation trap which is i) incorporated as a binder in any of the positive electrode or the negative electrode, ii) deposited onto a surface of any of the positive electrode or the negative electrode, iii) incorporated into the microporous polymer separator, iv) deposited onto a surface of the microporous polymer separator, or v) included as an additive in the electrolyte solution. The transition metal cation trap is a siderophore.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: March 26, 2019
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ion C. Halalay, Timothy J. Fuller, Zicheng Li, Mark W. Verbrugge
  • Patent number: 10125343
    Abstract: A rotational dual chamber bioreactor for cell culture in bi- and multi-layered scaffolds, in the context of tissue engineering (TE) and regenerative medicine strategies is disclosed, which comprises at least two dual culture chambers, a multiposition magnetic stirrer plate, and at least two flow pumps coupled to a monitor device to register biochemical parameters such as pH, pO2, glucose and urea sensors and physical parameters like pressure. A central barrier, with a hole to insert the bilayer scaffold, is used to culture cells with different conditions in each compartment of the chamber, avoiding medium exchange. Each chamber can rotate 180° (horizontal), which is promoted by magnetic stirrers, the multiposition stirrer plate is adapted dimensionally to the culture plate dimensions and also allows 180° vertical rotation. Each dual chamber has detachable caps for the top and the bottom chambers, the top cap to compress the scaffold thereby providing compressive stimulus with torsion simultaneously.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: November 13, 2018
    Assignee: ASSOCIATION FOR THE ADVANCEMENT OF TISSUE ENGINEERING AND CELL BASED TECHNOLOGIES AND THERAPIES—A4TEC
    Inventors: Raphael Faustino Canadas, Joaquim Miguel Antunes De Oliveira, Alexandra Margarida Pinto Marques, Rui Luis Goncalves Dos Reis
  • Patent number: 10100277
    Abstract: Provided herein are novel methods for expansion and passaging of cell aggregates comprising stem cells and/or differentiated cells and comprising the use of closed systems in stirred tank bioreactors. The methods of the invention permit closed system serial passage expansion of pluripotent stem cells and/or progeny thereof with associated pluripotency markers and differentiation potential.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: October 16, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Brian Michael Davis, Kenneth Roger Conway, Xiaohua Zhang
  • Patent number: 10017406
    Abstract: An upflow continuous backwash deep bed sand filter (UCBF) having a recycle line for returning carbonaceous denitrifying bacteria attached to biomass to the influent of the UCBF. The recycle line returns the biomass to the treatment process at a location upstream of the upflow continuous backwash filter. Further, a liquid level control unit is provided that reduces fluctuations and significant drop in the liquid level upstream of the upflow continuous backwash filter, thereby avoiding or minimizing flow turbulences, air induction, and undesirable wastewater aeration resulting in the need to dose excessive carbon source to remove dissolved oxygen in the aerated wastewater.
    Type: Grant
    Filed: October 2, 2013
    Date of Patent: July 10, 2018
    Inventors: John H. Reid, Wade Tanner
  • Patent number: 10000397
    Abstract: Described herein are attached growth reactor systems which increase nitrifying bacteria biomass through a variety of means during warm weather. As a consequence, the attached growth reactor system contains sufficient nitrifying bacteria biomass to remove ammonia from wastewater in cold to moderate climates. In one example, there are two attached growth reactors into which wastewater is distributed discontinuously. Specifically, wastewater is transferred to the first attached growth reactor for a first period of time and then is transferred to the second attached growth reactor for a second period of time during warm weather which effectively doubles the nitrifying bacteria biomass in the system. During cold weather, approximately half of the wastewater is applied to each reactor simultaneously.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: June 19, 2018
    Inventors: Martin Hildebrand, Merle Kroeker
  • Patent number: 9944894
    Abstract: Provided herein are novel methods for expansion and passaging of cell aggregates comprising stem cells and/or differentiated cells and comprising the use of closed systems on rocking platform bioreactors. The methods of the invention permit closed system serial passage expansion of pluripotent stem cells and/or progeny thereof with associated pluripotency markers and differentiation potential.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: April 17, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Brian Michael Davis, Kenneth Roger Conway, Evelina Roxana Loghin, Xiaohua Zhang
  • Patent number: 9902636
    Abstract: A method for reducing recalcitrant chemical oxygen demand (COD) of a liquid in a water system is provided. The method comprises pretreating the liquid in a pretreatment unit (12) to remove indigenous bacteria or microbes to a population level below which the indigenous organisms can interfere with the screened and externally introduced microorganisms. The liquid is then provided to a reactor (20) that has a filter bed (22) formed with a carrier material (26). Special microbes are screened and used to colonize the carrier material (26) to remove recalcitrant COD. A biofilm is cultured on the surface of the carrier material (26) to immobilize the screened microbes in the reactor (20). The method further comprises adding a co-substrate as the liquid enters the reactor (20) and percolating the liquid through the filter bed (22) colonized with the screened microbes to degrade at least part of the recalcitrant COD under aerobic conditions.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: February 27, 2018
    Assignee: General Electric Company
    Inventors: Sijing Wang, Lei Wang, Haiwu Zhang, Weiqing Xu, Ying Zhou
  • Patent number: 9751786
    Abstract: The invention relates to a fixed bed for aerobic or anaerobic wastewater purification, comprising an upper frame having support elements fixed to opposite side rails and/or intermediate rails for attaching textile, foldable, non-degradable supports for microorganism, a lower frame having support elements for fixing the textile supports to the lower frame, and means connecting the frames at a corner region. The invention is a fixed bed where all parts of the fixed bed can be assembled to form a relatively small packaging unit that already contains the inserted textiles. Frames are provided with spacers at least in the corner regions, the height of which spacers corresponds to the material height of the folded supports between two frames and the supports are fixed by means of the supports members to the side rails and/or intermediate rails of the frames in a preassembly step before folding.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: September 5, 2017
    Assignee: B+M TEXTIL GMBH & CO. KG
    Inventor: Edgar Schoberth
  • Patent number: 9681644
    Abstract: A process includes microbially degrading harvested polyculture plant material to form a concentrated microbial biomass and providing the concentrated microbial biomass to an intermediary animal for consumption. The process may also be directed to producing a product animal which includes providing a growth area having an outlet for waste and providing a harvested plant material collection area having an outlet for degradation products. The process may also include providing a microbial growth system for producing a bacterial biomass and directing at least some waste from the outlet of the product animal growth area to the harvested plant material collection area. The process may also include directing at least some degradation products to the microbial growth system, directing some of the microbial biomass produced in the microbial growth system to an intermediary animal for consumption, and directing the intermediary animal to a product animal growth area.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: June 20, 2017
    Assignee: Timberfish, LLC
    Inventor: Jere Northrop
  • Patent number: 9433903
    Abstract: A gas sparger for a filtering membrane system produces an intermittent flow of bubbles even if provided with a relatively continuous gas flow. The sparger has a housing to collect a pocket of gas and a conduit to release some of the gas from the pocket when the pocket reaches a sufficient size. Optionally, a cover over an outlet from the conduit may break up or distribute the released gas. A large sparger for can comprise a plurality of smaller units or areas. The supply of gas to the sparger may vary in flow rate over larger periods of time in response to changes in conditions in the membrane system to change the time between consecutive bursts of bubbles. A gas supply pipe may have two or more outlets at different elevations in communication with each of two or more units or areas.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: September 6, 2016
    Assignee: ZENON TECHNOLOGY PARTNERSHIP
    Inventors: Jeffrey Ronald Cumin, Henry Behmann, Youngseck Hong, Reid Bayly, Zhaoyang Wan, Joseph Breitner
  • Patent number: 9193614
    Abstract: Method and apparatus for sealed pressurized enclosure containing a sludge digester designed to receive wastewater from commercial establishments for the purpose of removing fats, oils and greases using the high velocity impact provided by the sludge digester. Air containing ozone is pumped through the sludge digester causing a flow of material so that the stream of material is directed onto a series of stationary concentric ridges wherein the solids in the liquid material are forcefully impacted against the stationary concentric ridges so as to break the solid particles up into smaller particles.
    Type: Grant
    Filed: January 7, 2013
    Date of Patent: November 24, 2015
    Inventor: Thomas R. McGuffin
  • Patent number: 9162909
    Abstract: 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: Grant
    Filed: February 28, 2013
    Date of Patent: October 20, 2015
    Assignee: IMET CORPORATION
    Inventors: Mehmet A. Gencer, Kaan Gencer, Paul M. Zakriski
  • Patent number: 9138695
    Abstract: An apparatus for making high-oxygenated water includes an oxygen supply, an exchange tank, and a pressure tank. The oxygen supply respectively supplies pure oxygen to the exchange tank and the pressure tank. The pure oxygen is dissolved in water in the exchange tank in a normal pressure environment to obtain oxygenated water. A slow-down unit is provided in the exchange tank to extend the time of the pure oxygen staying in the exchange to raise the dissolved oxygen of the oxygenated water. Next, the oxygenated water is drained to the pressure tank, and then the pure oxygen is dissolved in the oxygenated water in the exchange tank in a high pressure environment to obtain high-oxygenated water.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: September 22, 2015
    Inventor: Chien-An Chen
  • Publication number: 20150122731
    Abstract: 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: Application
    Filed: October 31, 2014
    Publication date: May 7, 2015
    Inventors: R. Gavin Jones, Kenneth Wilson, Sabin Holland, Michael D. Rainone
  • Patent number: 9011679
    Abstract: An apparatus for treating water comprises a conduit assembly for receiving waste water from a downstream inlet and for providing treated water out of an upstream outlet. The conduit assembly comprises a plurality of substantially vertical conduits in fluid communication providing for water to flow in an alternating downward and upward pathway therein. A medium for providing bacterial growth being is mounted within the conduit assembly. The medium comprises a plurality of substrate surfaces stacked along the vertical length of at least one conduit. Each substrate surface extends along the width of the conduit and provides for bacterial growth thereon. The apparatus includes a housing defining at least one chamber for receiving the conduit assembly therein.
    Type: Grant
    Filed: September 9, 2010
    Date of Patent: April 21, 2015
    Inventor: Martin Groleau
  • Publication number: 20150101981
    Abstract: An assembly for treating wastewater may include a vessel having an inlet configured to direct wastewater into the vessel and an outlet configured to direct treated water out of the vessel. The inlet and the outlet are generally disposed at opposite ends of the longitudinal dimension of the vessel such that the wastewater generally flows in the longitudinal direction. The assembly includes at least one panel removably inserted into the vessel. The at least one panel extends substantially across a width dimension of the vessel, wherein the width dimension is generally perpendicular to the longitudinal dimension. The panel includes a biofilm-coated matrix that permits the flow of wastewater through the panel. The vessel and panel are sized and arranged such that the wastewater is exposed to the biofilm-coated matrix for a time sufficient to remove a desired metal from the wastewater.
    Type: Application
    Filed: October 10, 2013
    Publication date: April 16, 2015
    Inventor: Colin LENNOX
  • Patent number: 8999170
    Abstract: A biological wastewater treatment system includes an equalization tank for sending a defined first portion of the wastewater to a submerged membrane filter. When the quantity of the received wastewater exceeds the defined first portion, a second portion of wastewater, formed from the wastewater that exceeds the defined first portion, is sent to a filtration process. The filtration process includes adding a flocculating agent to the second portion entering filtration, filtering the second portion, thereby producing retentive waste including flocculated material, and then sending the retentive waste to the submerged membrane filter.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: April 7, 2015
    Assignee: Ovivo Luxembourg S.å.r.l.
    Inventor: Dennis Livingston
  • Patent number: 8999164
    Abstract: Process for the purification of an aqueous stream coming from the Fischer-Tropsch reaction which comprises: —feeding said aqueous stream containing the organic by-products of the reaction to a distillation column, obtaining two output streams: —an aqueous stream (i) exiting from the column head, enriched with alcohols having from 1 to 20 carbon atoms, preferably from 1 to 9 carbon atoms, and other optional volatile compounds; an aqueous stream (ii) exiting from the column bottom, enriched with organic acids having from 1 to 10 carbon atoms, preferably from 2 to 6 carbon atoms; —subjecting said aqueous stream (ii) to an anaerobic biological treatment obtaining a purified aqueous stream (iii); wherein said anaerobic biological treatment is carried out with a hydraulic retention time lower than 15 hours, preferably ranging from 4 hours to 10 hours, more preferably ranging from 5 hours to 8 hours.
    Type: Grant
    Filed: February 18, 2010
    Date of Patent: April 7, 2015
    Assignee: ENI S.p.A.
    Inventors: Giuliana Franzosi, Pietro Cesti, Roberto Paglino, Lino Carnelli, Roberta Miglio
  • Patent number: 8992776
    Abstract: A system of treating high nitrogen content waste water is disclosed, where the system includes a precipitation and conditioning subsystem, an ammonia stripper subsystem, and a denitrification subsystem. The system is adapted to reduce nitrogen contamination to level below about 10 ppm and in certain embodiments below 3 ppm.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: March 31, 2015
    Inventors: Randy A. Galgon, Allen Ray Stickney, Richard B. Steinberg
  • Patent number: 8980089
    Abstract: The present application relates to a high-rate anaerobic pool bioreactor (“BLAAT”) as an improved processing unit for treating biodegradable wastewater, which allows the conversion of a low-performance rate traditional system, such as the anaerobic pool, into an efficient, compact system that enables clean energy to be recovered in the from of biogas. The application also describes a process for the anaerobic treatment of wastewater that uses said bioreactor, which optimizes the processes of mixing and contact between the biomass and the substrate and presents a novel process for separating out the biomass by means of improved sedimentation in horizontal laminar flow.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: March 17, 2015
    Assignee: Universidad del Valle
    Inventor: Miguel Ricardo Pena Varon
  • Patent number: 8940171
    Abstract: A system for treating wastewater including at least one water-treatment pathway having at least one wastewater inlet, at least one oxygen-permeable, water-impermeable wall, separating an interior of the pathway from outside air, and at least one treated wastewater outlet and arranged for at least aerobic treatment of the wastewater as it flows from the at least one wastewater inlet to the at least one treated wastewater outlet, at least one wastewater supply conduit, supplying the wastewater to the at least one wastewater inlet of the water-treatment pathway and at least one treated wastewater conduit, supplying treated wastewater from the at least one treated wastewater outlet of the at least one water-treatment pathway.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: January 27, 2015
    Assignee: Emefcy Limited
    Inventors: Ronen Itzhak Shechter, Lior Eshed, Eytan Baruch Levy, Tamar Ashlagi Amiri
  • Publication number: 20150014246
    Abstract: 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: Application
    Filed: March 14, 2014
    Publication date: January 15, 2015
    Inventor: A. Frank MCFADDEN
  • Patent number: 8932466
    Abstract: The present invention provides a method for sludge treatment, comprising the following steps: (1) mixing a sludge feed from a sewage biotreatment process with a first mixed liquor to obtain a second mixed liquor; (2) subjecting the second mixed liquor to an oxygen-supplying process to obtain a third mixed liquor; (3) subjecting the third mixed liquor to an anoxic process to obtain a fourth mixed liquor; (4) separating the fourth mixed liquor to obtain a supernatant liquid and a first concentrated mixed liquor; (5) discharging the supernatant liquid, and returning at least a part of the first concentrated mixed liquor as the first mixed liquor to the step (1), wherein the amount of sludge of the first concentrated mixed liquor that does not return to the step (1) is less than the amount of sludge of the sludge feed. The present invention further relates to the use of the method for sludge treatment in sewage treatment. The method for sludge treatment can achieve a long term stable run without sludge discharge.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: January 13, 2015
    Inventors: Jinmin Li, Liankui Zhou, Dayong Li
  • Patent number: 8920651
    Abstract: 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: Grant
    Filed: November 8, 2012
    Date of Patent: December 30, 2014
    Assignee: Sam Houston University
    Inventor: Michael D. Rainone
  • Patent number: 8916048
    Abstract: A water treatment method and a method for producing ultrapure water are provided in which urea in raw water is sufficiently decomposed, and an organism (bacterial cells) in biological treatment is prevented from flowing downstream. In a water treatment method for performing biological treatment of raw water containing urea, a carbon source is added to the raw water, and the raw water is then supplied to biological treatment means 1 and 2 having a fixed bed formed of an organism-supporting carrier to perform the biological treatment. The biological treatment after the addition of the carbon source to the raw water improves the efficiency of decomposition and removal of urea. The biological treatment means using a fixed bed formed of an organism-supporting carrier decreases the number of bacterial cells flowing downstream.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: December 23, 2014
    Assignee: Kurita Water Industries Ltd.
    Inventors: Nobukazu Arai, Nozomu Ikuno
  • Publication number: 20140367333
    Abstract: The microorganism-containing biocatalysts disclosed have a large population of the microorganisms irreversibly retained in the interior of the biocatalysts. The biocatalysts possess a surprisingly stable population of microorganisms and have an essential absence of debris generation from metabolic activity of the microorganisms. The biocatalysts are composed of highly hydrophilic polymer and have an internal, open, porous structure that promotes community phenotypic changes.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 18, 2014
    Inventors: Fatemeh RAZAVI-SHIRAZI, Mohammad Ali DORRI, Farhad DORRI-NOWKOORANI, Ameen RAZAVI
  • Publication number: 20140367330
    Abstract: A wastewater treatment process that employs anaerobic granular sludge or biomass to remove chemical oxygen demand (COD) from the wastewater. Certain constituents, such as COD, nitrogen, calcium, other dissolved solids, suspended solids, can impair the effectiveness of the granular biomass. Thus, the process employs treatment units to remove these inhibiting constituents to produce a treated effluent or stream. At least a portion of the treated effluent is recycled and mixed with the influent wastewater to reduce the concentration of these inhibiting constituents.
    Type: Application
    Filed: June 16, 2014
    Publication date: December 18, 2014
    Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Wenjun Liu, Graig Rosenberger, Abraham Izaak Versprille
  • Patent number: 8894857
    Abstract: A method and system of treating wastewater is disclosed. The treatment system has a nitrification-denitrification system comprising a sorption system, a biofilm system, and an anaerobic digester that digests or converts at least a portion of the solids or sludge from the sorption system and biofilm system.
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: November 25, 2014
    Assignee: Evoqua Water Technologies LLC
    Inventors: Wenjun Liu, Edward John Jordan, Paul M. Gallagher
  • Publication number: 20140342437
    Abstract: The present invention relates to microbial compositions useful in treating and remediating wastewater, removing organic matter from the surfaces of post harvested fruits and vegetables, and decreasing post-harvest disease in fruit and vegetables.
    Type: Application
    Filed: May 20, 2014
    Publication date: November 20, 2014
    Applicant: BiOWiSH Technologies, Inc.
    Inventors: Richard Carpenter, Michael S. Showell, JoElla Barnes, Nirupam Pal
  • Publication number: 20140326663
    Abstract: The present invention relates to biological treatment and devices applicable in this respect. The closed container comprises a first inlet (20) and a first outlet (18), at least one vertically orientated tube (6) arranged in the container (2), the lower end of said tube being raised above the bottom of the container (2), a first gas supply (8) arranged at the lower end of said tube (6) for creating a first circulating flow (F1) of liquid and microfilm carriers through the vertically orientated tube, a second gas supply (16) arranged at the bottom and in the vicinity of the wall of the container for creating a second circulating flow (F2) of liquid and microfilm carriers. The invention additionally relates to a plurality of serially connected containers.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 6, 2014
    Inventor: Jens Ole Olesen
  • Publication number: 20140291239
    Abstract: A wastewater disposal method using a two-way oxygen supply horizontal-flow biofilm includes a carrier that is formed of a permeable material so that oxygen is supplied to the biofilm from the bottom layer of the biofilm adjacent to the surface of the carrier, so as to achieve a mode of simultaneously supplying oxygen from the surface layer and the bottom layer of the biofilm. Wastewater disposal equipment using a two-way oxygen supply horizontal-flow biofilm includes a water intake system, a reaction system and a water discharge system.
    Type: Application
    Filed: December 31, 2011
    Publication date: October 2, 2014
    Inventors: Rongchang Wang, Yalei Zhang, Jianfu Zhao
  • Patent number: 8845891
    Abstract: A filtration device for an aquarium comprising a filtering chamber for receiving water and a filter medium therein wherein said filter medium comprises fibers having a diameter from 0.1 nm to 3000 nm and an aspect ratio of length to diameter of 5:1 to 10,000 to 1 wherein said fibers provide for colonization of nitrosomonas bacterium and/or nitrobacteria.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: September 30, 2014
    Assignee: T.F.H. Publications, Inc.
    Inventor: Glen S. Axelrod
  • Patent number: 8821729
    Abstract: The invention relates to a carrier element for an aerobic biological water treatment system. The carrier element has a first end and a second end at a distance from each other, the maximum diameter of the first end being larger than the maximum diameter of the second end. It also has biofilm growing surface structures that extend from the first end to the second end and from inner part of the element towards periphery of the element and at least two support structures that encircle the growing surface structures at the periphery of the element and connect the growing surface structures to each other. The support structures define the outer boundary surface of the carrier element, whereby the support structures are spaced from each other so that apertures allowing access to the biofilm growing surface structures are formed between the support structures. The invention relates also to a water treatment system employing the carrier elements.
    Type: Grant
    Filed: May 14, 2010
    Date of Patent: September 2, 2014
    Assignee: Flootech Oy
    Inventors: Petri Pajuniemi, Mikko Siivonen
  • Publication number: 20140238933
    Abstract: 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: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Applicant: IMET CORPORATION
    Inventors: MEHMET A. GENCER, KAAN GENCER, PAUL M. ZAKRISKI
  • Patent number: 8815094
    Abstract: A fluid conduit with layered and partial covering material thereon is disclosed. The fluid conduit may be used for processing and treatment of fluids which must be treated to remove materials so that the resultant treated fluid may be reused and/or returned to the earth and particularly to the water table. The fluid conduit may be of many forms and types and may have attached thereto and configured thereon covering material in partial form and a selected number of layers. The fluid conduit may be a septic pipe of smooth wall, of corrugated form, and/or of any form of cross-sectional configuration including circular, elliptical, rectangular, triangular, or any other geometric shape. The fluid conduit may be used in combination with conduit in a drainage field or leaching system usually associated with a septic tank or septic system.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: August 26, 2014
    Assignee: Presby Patent Trust
    Inventor: David W. Presby
  • Patent number: 8784658
    Abstract: 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: Grant
    Filed: November 14, 2008
    Date of Patent: July 22, 2014
    Assignee: Bluewater Bio Technologies Limited
    Inventor: Garry Hoyland
  • Patent number: 8784660
    Abstract: 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: Grant
    Filed: November 8, 2012
    Date of Patent: July 22, 2014
    Assignee: Sam Houston State University
    Inventors: Phillip Grisham, Michael D. Rainone
  • Patent number: 8778184
    Abstract: A modular, vertical bioreactor system includes a plurality of vertical bioreactor chambers each of which encloses an interior volume and has a height dimension which is greater than its width dimension; a drain manifold which maintains the bioreactor chambers in a spaced apart relationship and defines a fluid channel which is in fluid communication with each of the vertical bioreactor chambers; and, a fluid delivery assembly which delivers a fluid to each of the bioreactors. The system may be reconfigured so as to accommodate varying applications. The system may be integrated with an aquaculture system.
    Type: Grant
    Filed: October 10, 2011
    Date of Patent: July 15, 2014
    Inventor: Derek Byrd
  • Patent number: 8764986
    Abstract: 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: Grant
    Filed: December 22, 2009
    Date of Patent: July 1, 2014
    Assignee: University of Utah Research Foundation
    Inventors: Kraig Johnson, Lawrence D. Reaveley, Fred Jaeger, Hua Xu, Joyce A. Okey
  • Patent number: 8765449
    Abstract: A three stage, multiple phase anaerobic digestion system and method designed to separate the biological phases, optimize microbial activity in each phase, and significantly increase system reliability and energy production. The system physically separates the biological phases of anaerobic digestion based on particle size, particle density, and solubility of metabolic products. The system allows a complex multi-phased biological system to develop without the need for excessive control or operator intervention.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: July 1, 2014
    Assignee: Advanced Bio Energy Development LLC
    Inventor: William C Stewart
  • Patent number: 8758619
    Abstract: A membrane supported biofilm apparatus has a plurality of hollow fiber gas permeable membranes in a tank containing water to be treated. A biofilm supported on the membranes occupies between about 40% and 80% of the volume of water to be treated in a reactor. Wastewater treatment processes are described. A process to denitrify water or treat oxidized contaminants comprises introducing hydrogen into an inner volume of the membranes to grow autotrophic organisms in the biofilm near the membrane and heterotrophic organism near the water. Another process is operated as a biomass concentration of at least 10 g/L and up to about 40 g/L to maintain a biofilm having a surface area of over 1000 square meters per cubic meter of tank volume. A hybrid process has suspended biomass and a membrane supported biofilm.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: June 24, 2014
    Assignee: Zenon Technology Partnership
    Inventors: Hidayat Husain, Rocco Mazzaferro, Minggang Liu, Richard Wong, Heather Lossing, Fengshen Fan, Youngseck Hong, Reid Bayly
  • Patent number: 8758620
    Abstract: A wastewater treatment system is provided having a reactor, first and second bio media and an aeration system. The first bio medium is located proximate an inlet end of the reactor and extends vertically between a top water level and the reactor's floor. The second bio medium is located proximate an outlet end of the reactor and extends vertically between a bottom water level and the reactor's floor. The media are adapted for retaining solids within the reactor as clarified water is withdrawn after treatment. The first bio media is further adapted to act as a baffle thereby causing wastewater to flow generally uniformly into a primary reactor zone. The aeration system includes a plurality of diffusers, some of which may be located adjacent or underneath the bio media and are adapted for promoting the shaking the bio media when activated in order dislodge excessive biomass therefrom.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: June 24, 2014
    Assignee: Environmental Dynamics International, Inc.
    Inventors: Charles E. Tharp, Randall C. Chann
  • Patent number: 8758613
    Abstract: An anaerobic water purification system including an anaerobic water purification unit receiving water to be treated and providing an anaerobic-treated water output and biomass carriers for supporting anaerobic microorganisms in the anaerobic water purification unit.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: June 24, 2014
    Assignees: Aqwise-Wise Water Technologies Ltd, Westt
    Inventors: Tamar Arbel, Nir Assulin, Antonius Johannes Hendrikus Hyacinthus Engelaar, Tammy Yalin
  • Publication number: 20140166574
    Abstract: 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: Application
    Filed: December 18, 2013
    Publication date: June 19, 2014
    Inventor: Alexander Fassbender
  • Patent number: 8753511
    Abstract: Apparatus for integrated biological wastewater treatment and clarification including a tank having a wastewater inlet for receiving wastewater to be treated and having a treated, clarified wastewater outlet for providing treated, clarified wastewater for use, the tank having an upper turbulence region, a lower solids settling region below the upper turbulence region and a sludge collection region below the lower solids settling region, a multiplicity of biomass carriers disposed in the upper turbulence region, a gas diffuser assembly arranged generally between the upper turbulence region and the lower solids settling region for providing gas bubbles which move upwardly through the wastewater and the biomass carriers in the upper turbulence region, providing turbulence and oxygen and a sludge removal conduit communicating with the sludge collection region for removal of sludge therefrom.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: June 17, 2014
    Assignee: AQ-WISE—Wise Water Technologies Ltd.
    Inventors: Nir Assulin, Tamar Arbel
  • Publication number: 20140144838
    Abstract: The present invention provides a bio-augmentation composition for improving the hydrocarbon degradation efficiency of effluent treatment plant for hydrocarbon degradation in wastewater generated from hydrocarbon processing industry and a method thereof. The composition comprises a synergistic combination of selective microorganisms to develop a consortium enabling effective degradation of hydrocarbons present in wastewater and converting thereof into harmless and environment friendly substances. The invention also provides for the said microorganisms and their isolations.
    Type: Application
    Filed: April 2, 2012
    Publication date: May 29, 2014
    Applicant: INDIAN OIL CORPORATION LTD.
    Inventors: Manoj Kumar, Mahendra Pratap Singh, Ashok Kumar Tiwari, Deepak Kumar Tuli, Ravinder Kumar Malhotra, Anand Kumar
  • Patent number: 8734647
    Abstract: Process for the biological treatment of organic wastes, includes a first anaerobic digestion phase and a second aerobic digestion phase in succession, a respective filtration phase of the solid substance being provided between the two digestion phases, a separation phase of the biogas released in the anaerobic digestion phase and a nitrogen recovery phase from the exhaust gases rich in ammoniac substances separated from the aerobic digestion phase. The solid substance coming from each of the filtration phases is separately returned to the respective digestion phase, while the liquid phase coming from the filtration phase downstream of the anaerobic digestion phase is sent to aerobic phase. In the nitrogen recovery phase the gaseous current consisting of exhaust gases rich in ammoniac substances is treated with a solution of carbonic acid supplied in countercurrent in a first gas/liquid contactor to obtain a mixture of nitrogen salts (ammonium bicarbonate, ammonium carbonate, etc.).
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: May 27, 2014
    Assignee: Bioenergia S.r.l.
    Inventors: Paolo Bresciani, Andrea Manfredini, Andrea Peri, Federico Peri, Mario Peri, Vanessa Pizzaballa, Martino Pretalli, Antonio Tabarelli, Antonio Trilli