Including Collecting Or Storing Gas (e.g., Fuel, Carbon Monoxide, Etc.) Patents (Class 210/603)
  • Patent number: 11981949
    Abstract: A system and method for producing biogas (methane) from a mixture of poultry manure and methanogens through an anerobic digestion process which makes use of jute filters within the chamber to absorb excess ammonium nitrogen from the mixture of poultry manure.
    Type: Grant
    Filed: November 14, 2023
    Date of Patent: May 14, 2024
    Assignee: KING FAISAL UNIVERSITY
    Inventors: Muhammad Aamir, Muhammad Hassan, Shah Fahad Bin Masud
  • Patent number: 11912598
    Abstract: Embodiments of the present disclosure provide a device for kitchen waste digestion, including: a first treatment container, provided with a feed pipe and an exhaust pipe at a top, and internally configured with a plurality of pole plate pairs, the pole plate pairs including two pole plates, one of the pole plates being connected to a positive pole of a power source and another being connected to a negative pole of the power source, and a plurality of sieve holes being provided in each of the pole plates; and a second treatment container, a top of the second treatment container connecting to a bottom of the first treatment container, a middle part being configured with a plurality of filler layers spaced apart in a vertical direction, and a bottom being configured with an iron-carbon filler; and a filler in the filler layers including calcium peroxide and magnetite particles.
    Type: Grant
    Filed: August 24, 2023
    Date of Patent: February 27, 2024
    Assignee: CHANGZHOU UNIVERSITY
    Inventors: Mingguo Peng, Jianfeng Ma, Yang Qu, Linqiang Mao, Erdeng Du, Fang Zhu, Weibing Zhu, Dongxiao Shi, Qiuya Zhang, Yanqiu Zhang, Lu Zheng
  • Patent number: 11891320
    Abstract: Large sealed anaerobic digestor ponds with thin rubber membrane covers to absorb sunlight efficiently in selective sunlight absorption coating and low emissivity in infrared and transparent insulation layers. Flow of pond byproduct gas and heat transfer to circulate slurry liquid controlled by pressurization and weighting of gas collection cover membrane to provide sloped buoyant bubble gas flow gas collection channels in deformed membrane. Low gas pressure used between layers to increase heat transfer to digesting slurry when low wind and prevent wind lift-off with high winds. High gas pressure used between membrane layers to remove sloped collection channels, permit thickened foam over digesting slurry and reduce heat transfer at night. These large-scale solar heating digesting ponds can maintain sufficient digestion temperature to accelerate digestion, maximize gas production efficiency, and minimize greenhouse gas emissions.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: February 6, 2024
    Assignee: TUCUMCARI BIO-ENERGY CORPORATION
    Inventor: Robert G. Hockaday
  • Patent number: 11891319
    Abstract: A wastewater treatment plant and related method comprise a treatment stage including a biological-process substage configured for growing unicellular organisms adapted to reduce contaminants in the wastewater which are dissolved, including at least one of organic matter and nitrogenous matter, by digestion thereof, and which are adapted to floc after digestion and a floc-removal substage downstream from the biological-process substage, relative to the flow of wastewater, and configured for substantially removing the unicellular organisms that have flocked. The treatment stage is configured to form majority and minority flows of treated wastewater, and the minority flow is configured to be recycled upstream of the biological-process treatment substage. The plant includes a heat transfer assembly configured for transferring heat from the majority flow of treated wastewater to the minority flow thereof to increase temperature of wastewater to be treated.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: February 6, 2024
    Inventor: Robert Sinclair
  • Patent number: 11884565
    Abstract: There is a process for the production of a liquid fuel and of a gaseous fuel from biomass. The biomass is sent to a pre-treatment section to form a homogeneous phase that can be moved and/or pumped, wherein inert parts are separated from the biomass and the biomass shredded and/or ground to reduce its size. The homogeneous phase obtained is then subjected to subcritical hydrothermal liquefaction at a temperature between 240° C. and 310° C. to form a liquefied phase. The liquefied phase is separated. After separation, the process continues in two alternative and mutually exclusive modes. In the first mode, the first aqueous phase is subjected to an anaerobic reaction with multiple stages producing biogas; the oily phase is separated into a bio-oil and a solid residue. In the second mode, the separate mixed phase is separated by density or dynamics forming a first aqueous phase, bio-oil and a gaseous phase.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: January 30, 2024
    Assignee: ENI S.P.A.
    Inventors: Roberta Miglio, Roberto Paglino, Cristian Torri, Alisar Kiwan, Daniele Fabbri
  • Patent number: 11878924
    Abstract: The present invention relates to a process for the separation of biomass in the anaerobic purification of wastewater and to a system for the separation of biomass in the anaerobic purification of wastewater.
    Type: Grant
    Filed: June 10, 2021
    Date of Patent: January 23, 2024
    Assignee: PAQUES I.P.B.V.
    Inventors: Cornelia Theresia Maria Johanna Frijters, Sebastiaan Leonardo De Bruin
  • Patent number: 11866381
    Abstract: An assemblage appliance and method of recycling organic waste into biogas and liquid fertilizer, implementing essentially anaerobic digestion processes, is described. The assemblage appliance includes: a pliant structured exoskeletal envelope, pliable collapsible anaerobic digester and gas tank. A compact kit-of-parts for assembling the aforementioned appliance and respective method using the aforementioned appliance for recycling organic waste into biogas and liquid fertilizer are described.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: January 9, 2024
    Inventors: Oshik Moshe Efrati, Yair Teller, Erez Lanzer, Shoham Zak
  • Patent number: 11851355
    Abstract: Processes and system are provided for digesting biosolids in a multistage digestion system. The processes and system are well suited for producing Class A biosolids and biogas containing a high content of methane. Methods and systems are also provided for recovery of phosphorus from wastewater and biosolids.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: December 26, 2023
    Inventors: Richard Pressley, Justin Wippo, John H. Graham, Jr.
  • Patent number: 11834355
    Abstract: The invention relates to a method and system for phosphate recovery from a stream such as waste flow, sewage or another sludge stream. The method comprises the steps of: providing an incoming stream comprising an initial amount of phosphate; dosing/controlling iron salt to the stream such that precipitates are formed in the stream, wherein the precipitates comprise vivianite like structures comprising more than 60% of the initial amount of phosphate in the incoming stream, and preferably also the steps of: separating the vivianite like structures from the stream; and recovering the phosphates from the separated vivianite like structures.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: December 5, 2023
    Assignee: Kemira Oyj
    Inventors: Philipp Karl Wilfert, Leendert Date Korving, Peter Carlo Rem, Geert-Jan Witkamp, Marinus Cornelis Maria Van Loosdrecht, Achim Lulian Dugulan, Kees Goubitz, Simon Peter Maria Berkhout
  • Patent number: 11834359
    Abstract: A method for enhancing anaerobic digestion based on solid-liquid interface renewal in sludge is disclosed. The method includes subjecting sludge to a centrifugation, a thermal baking and a redissolution in softened water in sequence to renew a solid-liquid interface in sludge, and subjecting the sludge to an anaerobic digestion to increase methane production from organic matter in the sludge by anaerobic biotransformation.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: December 5, 2023
    Assignees: TONGJI UNIVERSITY, SHANGHAI URBAN POLLUTION CONTROL ENGINEERING RESEARCH CENTER CO., LTD.
    Inventors: Ying Xu, Xiaohu Dai
  • Patent number: 11827546
    Abstract: Waste water is remanufactured with ozone in a series of mixing vessels. The ozone is dispersed to both a top and a bottom portion of each mixing vessel, but in different amounts. This creates an electrical potential difference across the height of each mixing vessel which significantly improves the oxidation of organic carbon-based impurities and eliminates H2S and bacteria. Sludge and solids floating to the top of each mixing vessels are removed, as well as sludge and solids settling to the bottom of the mixing vessels. When oil and gas well waste water is treated in this manner, the resulting treated water is purified and has a high salt content suitable for oil or gas well injection.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: November 28, 2023
    Assignee: Clean Water Tech, LLC
    Inventor: Timothy G. Coakley
  • Patent number: 11826801
    Abstract: There is disclosed a method of producing a soil remediant from liquid organic waste material in which the liquid organic waste material is concurrently pasteurised and digested by thermophilic aerobic digestion in the liquid phase in a single digester vessel. The organic waste material in the digester is maintained continuously at a temperature of at least 70° C. for at least an hour and the liquid organic waste material comprises at least 70% water and can be pumped. After a period of at least an hour a small amount of pasteurised organic waste material is removed and a corresponding amount of fresh organic waste material is added to the single digester vessel such that the temperature is maintained in a comfort zone of the thermophilic bacteria. In a preferred embodiment the thermophilic aerobic digestion is facilitated by micro-organisms including crenarchaeota. The liquid organic waste material can be combined with a microporous adsorbent.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: November 28, 2023
    Assignee: Agri-Tech Organic Solutions Limited
    Inventors: Bruce Michael Drew, Robert Anthony Severwright, Robert Leslie Young, Richard Curd, Roger Benfield
  • Patent number: 11807565
    Abstract: A method for remediating wastewater formed by water and per- and poly-fluoroalkyl substances (PFAS) using a wastewater treatment system that includes a collecting unit, a dewatering unit, a drying unit, and a baking unit. Wastewater provided to the collecting unit is dosed by adding a compound to the wastewater in an amount that is sufficient to cause the PFAS to separate from the water and to form a sludge. The sludge is dewatered with the dewatering from a first dryness level a second dryness level. The dewatered sludge is then dried in the drying unit from the first dryness level to a third dryness level. The dried sludge is then baked at a sufficiently high enough temperature that chemical bonds of at least a portion of the PFAS is destroyed.
    Type: Grant
    Filed: June 9, 2022
    Date of Patent: November 7, 2023
    Inventors: Kenneth Brummett, Jonathan Brummett, Brian Bartel, Christina Harner
  • Patent number: 11780756
    Abstract: A method of removing nitrogen-bound nitrate from at least one of groundwater, surface water, or waste water is disclosed. The method includes providing contaminant-containing water from groundwater, surface water, and/or waste water sources. The method further includes adding the contaminant-containing water to an algal photobioreactor system. The method further includes adding an alga culture to the alga photobioreactor system. The method further includes adjusting temperature, CO2 concentration, pH, light wavelength, and/or light intensity in the algal photobioreactor system to optimize the growth of the algae. The method further includes separating the algae from the water and harvesting algal biomass.
    Type: Grant
    Filed: October 15, 2019
    Date of Patent: October 10, 2023
    Assignee: NUtech Ventures
    Inventors: Paul N. Black, James W. Allen, Timothy J. Nicodemus
  • Patent number: 11746030
    Abstract: Aerobic granular sludge (AGS) is an energy efficient and compact biological wastewater treatment process. There is only one commercially available AGS technology which utilizes sequencing batch reactors (SBR). Many existing wastewater treatment facilities consist of long, continuous flow reactors that would not be readily suitable for retrofit to SBR. Therefore, a continuous flow process is preferred for municipalities that cannot economically invest in the only commercially available SBR technology (i.e., Nere-da®). Lab- and pilot-scale experimentation has demonstrated that stable granulation can be achieved in a continuous flow configuration GT suitable for retrofit into existing infrastructure. An anoxic/anaerobic/aerobic configuration can be designed and stably operated for conversion of flocculent biomass to AGS Preliminary pilot-scale results on primary effluent from a municipal wastewater treatment facility indicated that granules of 0.2-0.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: September 5, 2023
    Assignee: University of Manitoba
    Inventors: Tanner R. Devlin, Jan A. Oleszkiewicz
  • Patent number: 11724949
    Abstract: Disclosed are a baffled integrated denitrifying and decarbonizing device with anaerobic bio-nests and a baffled integrated denitrifying and decarbonizing process with anaerobic bio-nests thereof. The wastewater with low carbon-nitrogen ratio first enters anaerobic chamber I, then enters anaerobic chamber II and chamber III to complete anaerobic decarbonization and denitrification. The chambers are provided with modified basalt fiber carrier media to enrich a large number of functional microorganisms, and improve the device in terms of anaerobic treatment efficiency. Fermentation liquid in chamber III then flows back to aerobic chamber IV to complete the nitrification process. Nitrified liquid enters chamber I and mixes with influent for further treatment, and effluent is finally discharged from chamber III. The clapboard and basalt fiber felt in chamber IV can retain and enrich autotrophic/heterotrophic nitrifying bacteria.
    Type: Grant
    Filed: November 17, 2022
    Date of Patent: August 15, 2023
    Assignee: JIANGSU UNIVERSITY
    Inventors: Zhiren Wu, Xiangtong Zhou, Haipeng Xi, Chengye Liu, Zhigang Liu, Suying Jiang, Hongjun Dong, Zhishui Liang
  • Patent number: 11702353
    Abstract: A rotating biological contactor (RBC) is provided that includes a media wheel with a plurality of vanes configured for growth of algae thereon. The media wheel is configured for rotation by air directed from an air diffuser to impinge on the vanes such that when said media wheel is partly immersed in water rotation of the media wheel alternately exposes algae growing on the plurality of vanes to sunlight and to the water. A frame is connected to an axle of the media wheel. Only one of the media wheel and the frame is constructed with a buoyancy sufficient to support the media wheel partly immersed in water during rotation of the media wheel.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: July 18, 2023
    Inventor: Christopher A. Limcaco
  • Patent number: 11702354
    Abstract: The present disclosure relates to a bacterium-alga coupled sewage treatment device based on energy recycling and a use method thereof. The device comprises a pretreatment device, a photobioreactor, an alga separation apparatus, a continuous flow bioreactor and a secondary sedimentation tank which are sequentially connected in order, the pretreatment device being connected to a municipal sewage inlet pipe, the photobioreactor being connected to a carbon dioxide gas charging device through a gas filling pipeline, one part of a sludge thickening tank being connected to the secondary sedimentation tank, the other part thereof being connected to remaining sludge of the pretreatment device, carbon dioxide generated from the sludge which flows through the thickening tank and is thermally-hydrolyzed and anaerobically-acidified being connected to the photobioreactor through a gas inlet pipeline, and the alga separation apparatus being further connected to a filter press.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: July 18, 2023
    Assignee: BEIJING DRAINAGE GROUP CO., LTD
    Inventors: Yong Jiang, Kuixiao Li, Wei Wang, Yu Bai, Jiawei Wang, Ye Li, Kerning Wang, Lijun Zhao
  • Patent number: 11691903
    Abstract: An anaerobic digestion system may include a material grinding/pulping portion, a hydrolysis portion arranged downstream of the grinding portion, a multiple chamber anaerobic reactor arranged downstream from the hydrolysis portion and including a gas collection and reintroduction system, a collection system for collecting digestate and gas from the anaerobic reactor.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: July 4, 2023
    Inventors: Abdolreza Assadi, Ronald Scott Sleight
  • Patent number: 11692163
    Abstract: A system and method for the production of microbial consortiums and by-product material is provided. A physical containment system comprising phase spaces arranged in a discrete order to favor specific biological reactions is also provided. Phase profiles and phase data sets include the pre-determined physical and biological parameters for the phase space transitions. Movement of material from one phase to the next is hydraulically balanced enabling working fluid to continuously move in a fixed direction and rate of flow. Continuous monitoring of phase profiles and phase data sets provide feedback to the system enabling alteration of the conditions in the system to control reactions therein.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: July 4, 2023
    Assignee: Tenfold Technologies, LLC
    Inventors: Robert Chisholm, Michael LaMontagne, Robert N. Ames, David P. Lanciault, John R. Coyne
  • Patent number: 11691904
    Abstract: Disclosed herein is a process for the treatment of wastewater for biosolids reduction and biogas (i.e. methane) generation where a wastewater is provided to a first reactor which is operated under anaerobic conditions, a hydraulic/solids retention time of from 0.1 to 1 day, a temperature of from 30 to 70° C. and a pH of from 6.5 to 10, with the effluent of the first reactor passing to a second reactor which is operated under anaerobic conditions, a hydraulic/solids retention time of from 3 to 10 days and a temperature of from 30 to 70° C. The process may further comprise feeding an effluent produced from the second reactor to a third reactor operated under anaerobic conditions, a hydraulic/solids retention time of from 3 to 20 days and a temperature of from 30 to 70° C.
    Type: Grant
    Filed: April 11, 2018
    Date of Patent: July 4, 2023
    Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
    Inventors: Chenghong Guo, Yogananda Maspolim, Yan Zhou, Wun Jern Ng
  • Patent number: 11634349
    Abstract: A multi-stage system comprising a digester, a bioreactor, a scrubber, a biofilter, and a membrane filter extracts and purifies biogas from a wastewater feed. The digester separates raw biogas from wastewater, the wastewater is then purified with a three-stage bacterial process in a bioreactor. The scrubber receives raw biogas from the digester under pressure, dissolving waste gases and purifying the methane, which can be further condensed and purified in the membrane filter. The bioreactor receives waste gases from the scrubber and membrane filter, with the ammonia portion of the waste gases rising through water from the bioreactor and being converted by annamox bacteria into nitrogen gas. The multiply recycled gas and water feeds produce a biogas having high purity and reduced atmospheric emissions of waste gases.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: April 25, 2023
    Inventors: Robert O. Hoffland, Prince N. Dugba
  • Patent number: 11618705
    Abstract: The disclosure relates to a method for enhancing methanogenesis in anaerobic digestion of municipal sludge by utilizing a filter screen structure, comprising: arranging a filter screen structure with titanium or titanium alloy as the framework and Fe3O4 as the coating in the anaerobic digestion system to accelerate the rate of hydrolysis and acidification, and increase the proportion of methane in biogas.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: April 4, 2023
    Assignee: TONGJI UNIVERSITY
    Inventors: Xiaohu Dai, Lei Li, Ying Xu, Lipeng Dong, Linke Zheng, Bin Dong, Lingling Dai
  • Patent number: 11613483
    Abstract: A method for treating an aqueous fluid containing a biodegradable organic substance in an installation that includes an upflow bioreactor containing a sludge bed, wherein the sludge bed includes biomass, an external separator, and a conditioning tank. The method includes treating the fluid in the conditioning tank; feeding the treated fluid into a lower part of the bioreactor and forming biogas; withdrawing the fluid from an upper part of the bioreactor, which withdrawn fluid includes biomass; feeding the aqueous fluid withdrawn from the upper part of the bioreactor into the external separator, wherein the aqueous fluid that includes the biomass is separated into a liquid phase and a fluid phase enriched in biomass; returning the fluid phase enriched in biomass from the external separator to the bioreactor; and returning a part of the liquid phase to the conditioning tank.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: March 28, 2023
    Assignee: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT
    Inventors: Santiago Pacheco-Ruiz, Hendrik Richard Paul La Vos, Thierry Alphonse Arnaud, Jeronimus Gerardus Maria Van Der Lubbe
  • Patent number: 11608482
    Abstract: The invention discloses a device for producing biogas with high methane content by utilizing livestock and poultry feces, wherein the interior of a tank body of a biogas fermentation tank is divided by a baffle, so as to form a main reaction chamber and an auxiliary reaction chamber which are communicated in upper portions, so that a reactant flows into the auxiliary reaction chamber only after entering the main reaction chamber via a relatively low feeding hole and then reaching a high position of a liquid level, and extension of fermentation time is realized, meanwhile, scales formed at the top of fermentation broth flow into the auxiliary reaction chamber along with liquid, so that the interior of the main reaction chamber keeps a liquid state all the time, and sealing and reduction of quantity of anaerobic bacteria are avoided.
    Type: Grant
    Filed: January 17, 2020
    Date of Patent: March 21, 2023
    Assignees: South China University of Technology, Guangdong University of Petrochemical Technology, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences
    Inventors: XiaoJun Niu, MengYu Lv, Xia Li, Li Zhang, NingYu Tu, XingYao Ye, DongQing Zhang, LiHua Cheng, HuaFang Guo
  • Patent number: 11602777
    Abstract: A control system for controlling extraction of landfill gas, comprising: at least one sensor configured to measure one or more characteristics of landfill gas; at least one flow control mechanism disposed in well piping and configured to control flow of the landfill gas through the well piping; and at least one processor configured to: obtain a measured concentration of a first gas in landfill gas; determine whether the measured concentration of the first gas is either less than a first threshold concentration or greater than a second threshold concentration; when it is determined that the measured concentration is less than the first threshold concentration, control the at least one flow control mechanism to reduce flow rate of landfill gas; and when it is determined that the concentration is greater than the second threshold concentration, control the at least one flow control mechanism to increase the flow rate of landfill gas.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: March 14, 2023
    Assignee: Loci Controls, Inc.
    Inventors: Andrew Campanella, Joseph G. Michels, Peter Quigley, Ian Martin
  • Patent number: 11602778
    Abstract: Devices and techniques related to landfill gas extraction are disclosed. A technique for controlling extraction of landfill gas from a landfill through a gas extraction system is described. The method may include measuring a plurality of values indicating conditions associated with the landfill; computing, based at least in part on the plurality of values and on a model of the landfill, a predicted future state of the landfill; determining, based at least in part on the predicted future state of the landfill, one or more control parameters for one or more respective control devices configured to control operation of the gas extraction system; applying the one or more control parameters to the one or more respective control, and with the one or more control devices, controlling extraction of the landfill gas from the landfill based, at least in part, on the one or more respective control parameters.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: March 14, 2023
    Assignee: Loci Controls, Inc.
    Inventors: Andrew J. Campanella, Melinda Sims, Nathan Pallo, Ian Martin
  • Patent number: 11566211
    Abstract: According to present disclosure, there is disclosed an algae growth and cultivation system that provides a cost-efficient means of producing algae biomass as feedstock for algae-based products, such as, fertilizer, feed, biofuel manufacture, and desirably impacts, nutrient recovery from waste streams for valued byproducts production, recycle water, and alternative/renewable energy production. The system as discussed herein is an integrated systems approach to wastewater treatment, algal strains selection for byproducts production, and recycle of algal biomass-processing waste or additional algae harvested as feedstock for products such as fertilizer production. Embodiments of a system as discussed herein present an economically viable algae production system and process that allows algae-derived products such as fertilizer, feed, biofuels, etc. to compete with non-organic or petroleum products in the marketplace.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: January 31, 2023
    Assignee: GSR Solutions, LLC
    Inventor: Anju D. Krivov
  • Patent number: 11549088
    Abstract: A waste treatment, pyrolysis and gasification and concerns an apparatus for syngas bio-methanation include a unit for pyrolysis/gasification receiving organic material, the unit for pyrolysis/gasification generating syngas, comprising at least one membrane reactor inside a liquid bath comprising at least one bacteria population, the membrane reactor comprising at least one hollow fiber in contact with the liquid bath, around which a biofilm is formed and into which the syngas from the unit for pyrolysis/gasification flows, so as to convert the syngas into methane. A method for bio-methanation of syngas comprising a step of providing syngas from a unit for pyrolysis/gasification to a membrane reactor inside a liquid bath comprising at least one suitable bacteria population, the membrane reactor comprising at least one hollow fiber in contact with the liquid bath, around which a biofilm is formed and into which the output syngas of the unit for pyrolysis flows, so as to convert the syngas into methane.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: January 10, 2023
    Assignee: SUEZ INTERNATIONAL
    Inventors: Patricia Camacho, Mathieu Haddad
  • Patent number: 11548801
    Abstract: A self-circulating high-efficiency biological denitrification device includes a tank body, where an aerobic zone, an anoxic zone, a settling tank water distribution zone, a sludge zone, a sludge-water separation zone, and an effluent flow stabilization zone are arranged from bottom to top in the tank body; the settling tank water distribution zone includes a settling tank influent guide cylinder, and a circular butterfly jet water distributor is arranged between the settling tank influent guide cylinder and the aerobic zone; the settling tank influent guide cylinder is connected to a guide plate arranged in the aerobic zone, the anaerobic zone, and the sludge zone; the guide plate includes three sections; a nitrification liquid return gap and a sludge return gap are formed; a bottom of the aerobic zone is provided with an aerator; the aerator is connected to an air inlet pipe located outside the tank body.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: January 10, 2023
    Assignee: CHUANGTSING ECOLOGICAL ENVIRONMENT (NINGBO) CO., LTD.
    Inventors: Jianming Cai, Bibo Zhou
  • Patent number: 11548803
    Abstract: The present invention relates to a method for enhancing deep degradation of proteins in sludge.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: January 10, 2023
    Assignee: TONGJI UNIVERSITY
    Inventors: Bin Dong, Sisi Chen, Jun Gao, Danni Shen
  • Patent number: 11530146
    Abstract: Waste water is remanufactured with ozone in a series of mixing vessels. The ozone is dispersed to both a top and a bottom portion of each mixing vessel, but in different amounts. This creates an electrical potential difference across the height of each mixing vessel which significantly improves the oxidation of organic carbon-based impurities and eliminates H2S and bacteria. Sludge and solids floating to the top of each mixing vessels are removed, as well as sludge and solids settling to the bottom of the mixing vessels. When oil and gas well waste water is treated in this manner, the resulting treated water is purified and has a high salt content suitable for oil or gas well injection.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: December 20, 2022
    Assignee: Clean Water Tech, LLC
    Inventor: Timothy G Coakley
  • Patent number: 11519853
    Abstract: Provided are a method of evaluating biogas power generation suitability performed by a biogas power generation suitability evaluation server including a processor and a memory, the method comprises extracting, from satellite image data of an evaluation target area, an area corresponding to the evaluation target area, calculating a size of biogas generation facilities included in the evaluation target area based on the extracted area, calculating a biogas concentration of the evaluation target area from the satellite image data and evaluating the biogas power generation suitability based on the size of the biogas generation facilities and the biogas concentration of the evaluation target area, wherein the calculating of the biogas concentration of the evaluation target area comprises calculating an average value of biogas concentrations of area corresponding to the evaluation target area, and the evaluating of the biogas power generation suitability comprises calculating, based on the size of the biogas genera
    Type: Grant
    Filed: April 1, 2022
    Date of Patent: December 6, 2022
    Assignee: AJOU UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Ju Young Kang, Jae Hyeong Park, Sang Ho Ahn
  • Patent number: 11459252
    Abstract: An aerobic biological treatment apparatus includes a reaction tank (tank body), a water permeation plate horizontally installed in a lower part of the reaction tank, a large-diameter particle layer formed on an upper side of the water permeation plate, a small-diameter particle layer formed on an upper side of the large-diameter particle layer, an oxygen dissolution membrane module disposed on an upper side of the small-diameter particle layer, a receiving chamber formed on a lower side of the water permeation plate, a raw water dispersion pipe supplying raw water into the receiving chamber, a diffuser pipe installed to perform gas diffusion in the receiving chamber and the like. A condensed water drainage pipe branches from an exhaust pipe from the oxygen dissolution membrane module, and a valve is provided.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: October 4, 2022
    Assignee: KURITA WATER INDUSTRIES LTD.
    Inventors: Tetsurou Fukase, Hideki Kobayashi
  • Patent number: 11459254
    Abstract: A method and an apparatus for maintaining a stable microbial community in a combined anaerobic-aerobic waste processing system. The system comprises cycling of waste activated sludge between reactors, thereby ensuring a healthy microbial community and an efficient waste decomposition.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: October 4, 2022
    Assignee: S.G.T.—SUSTAINABLE GREEN TECHNOLOGIES LTD
    Inventors: Gal Levin, Reuven Eitan
  • Patent number: 11453607
    Abstract: A process for enhanced anaerobic digestion of sludge by alcoholization of food waste, comprising steps of: (1) ethanol prefermentation of food waste—feeding the food waste having been crushed into a uniform grain size into an ethanol production reactor, where the food waste is subjected to rapid and efficient anaerobic fermentation activated by addition of yeast and pH adjustment to produce ethanol and obtain a fermentation broth and a fermentation residue; (2) sludge pretreatment—pretreating the sludge after mixing with the fermentation residue; and (3) methanogenesis of anaerobic digestion—subjecting products resulting from the sludge pretreatment to be mixed with the fermentation broth and then to methanogenesis of anaerobic digestion in a methane production reactor. With this process, the sludge and the food waste can be treated efficiently via multi-phase reactions, and the resource recovery and biogas quality can be enhanced.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: September 27, 2022
    Assignee: TONGJI UNIVERSITY
    Inventors: Xiaohu Dai, Lei Li, Jun Gao, Ying Xu, Bin Dong, Lingling Dai, Zhigang Liu
  • Patent number: 11447766
    Abstract: An embodiment of the present disclosure provides an apparatus for immobilizing a microbial cell, the apparatus including: a mixing tank in which a cell-carrier-containing mixed solution is accommodated; a nozzle part through which the cell-carrier-containing mixed solution is injected from the mixing tank and is discharged to the outside; and a reaction tank in which a cell immobilized bead is formed by contact between the cell-carrier-containing mixed solution discharged from the nozzle part and an aqueous curing agent solution. In the apparatus for immobilizing a microbial cell according to the present disclosure, since the cell-carrier-containing mixed solution is injected through an air spraying nozzle, even when an immobilized carrier solution having a high viscosity is used, a microbial cell immobilized bead having a small size and having a spherical shape, or an almost spherical shape may be mass-produced.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: September 20, 2022
    Assignee: DAESANG CORPORATION
    Inventors: Baek Joong Kim, Tae Gun Kim, Min Su Kim, Tae Yong Kim, Eun Bum Song
  • Patent number: 11365143
    Abstract: Disclosed are a cow excreta treatment apparatus and method. According to an aspect of the present embodiment, in a cow excreta treatment apparatus which treats cow excreta wastewater, provided is an aerobic reaction chamber for improving the aggregation and sedimentation characteristics of fine solids, the aerobic reaction chamber comprising: an air blow pipe for supplying air; a vertical membrane for preventing the outflow of raw water; and a discharge pipe for discharging air and treated water and removing bubbles generated in the aerobic reaction chamber.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: June 21, 2022
    Inventors: Daehwan Rhu, Minki Jung, Jaegwan Jang
  • Patent number: 11365433
    Abstract: An anaerobic digestion system for producing biogas from biomass, particularly biomass that is lignocellulosic, and includes two separate and interacting anaerobic reactor environments to solubilize lignocellulosic materials and make them available for conversion to biogas.
    Type: Grant
    Filed: May 15, 2020
    Date of Patent: June 21, 2022
    Inventors: Jaron C. Hansen, Lee D. Hansen, Zachary T. Aanderud, Conly L. Hansen
  • Patent number: 11358893
    Abstract: A positive polymer fecal sludge treatment apparatus comprising a trash separator, one end of which is connected with a sludge inlet, and the other end of which is connected with a twin-rotor vacuum water pump. A high-pressure transparent tube is disposed and connected, by a knife valve, between the trash separator and the twin-rotor vacuum water pump. One end of the knife valve is connected with a first material box and a second material box. A first chemical box and a second chemical box are disposed under the first material box and the second material box, and each of the first material box and the second material box is connected with the first chemical box and the second chemical box. The first and second material boxes have a larger volume than a conventional one and thus can store more material and also can perform chemical stirring reaction directly.
    Type: Grant
    Filed: October 17, 2020
    Date of Patent: June 14, 2022
    Inventor: Frank Lin
  • Patent number: 11339360
    Abstract: Culture systems and methods of using same. The systems include a housing defining an inner space. The inner space includes a headspace and at least a portion of a reservoir. A surface for immobilizing cells is moveable between the headspace and the reservoir. The systems can be used for coculturing methanotrophs and phototrophs for processing biogas and wastewater, particularly from anaerobic digesters.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: May 24, 2022
    Assignee: Auburn University
    Inventors: Qinghua He, Jin Wang, Matthew V. Hilliard
  • Patent number: 11332400
    Abstract: It discloses to a device and a method for controlling pollutants in metal mine water resources cycling utilization. The device includes a multi-stage inflow constructed wetland (3), in which one or more layers of the filler are laid, and water distribution pipes (4) are buried at different height levels in the filler layers for multi-stage inflow, so that the received basin water is allowed to flow through each layer of the filler to degrade or remove the pollutants. In the multi-stage inflow constructed wetland, the types of fillers, dosage ratio, particle size and filling height of fillers in each layer are specifically selected. Therefore, heavy metal adsorption, suspended matter filtration, organic matter degradation, dephosphorization and denitrification can be effectively realized in the multi-stage inflow constructed wetland.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: May 17, 2022
    Assignee: CHINESE RESEARCH ACADEMY OF ENVIRONMENTAL SCIENCES
    Inventors: Beidou Xi, Lei Wang, Yalei Zhang, Jinsheng Wang, Ming Chang, Yangyang Wang, Wenbing Tan, Tongtong Li, Hui Liu, Yali Zhang, Feng Wu
  • Patent number: 11325057
    Abstract: The trap includes a container with a top opening covered by a lid. Inlet and outflow pipes extend through the lid into the container. A sheet of mesh filtration material (fiberglass, foam etc.) is situated within the container, below and preferably bonded to the interior surface of the lid. The inlet and outflow pipes extend through the filtration sheet into the container such that as the water level rises, sediment from the water flowing through the container settles to the bottom of the container and floating particles on the surface of the water which would otherwise be carried out of the trap with the water as the water exits the container remain in the filtration sheet.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: May 10, 2022
    Inventor: Donald Nevin
  • Patent number: 11312932
    Abstract: The invention relates to a method and a biogas plant for producing biogas, preferably from rice straw, wherein a substrate is fermented in two reactors (1, 2) in a circulating manner, so that a methane production from cellulose-and/or lignocellulose-containing substrate can be improved.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: April 26, 2022
    Assignee: Herbst Umwelttechnik GmbH
    Inventors: Marcel Spahr, Leonhard Fechter
  • Patent number: 11308603
    Abstract: Monitoring of an environmental location to detect waste disposal includes receiving, by a computer, a collection of images from aerial data acquisition sources, the collection of images corresponding to the environmental location and the waste disposed in the environmental location. The collection of images are processed by the computer to extract properties of the waste and first properties of the environmental location. Subsequently, the properties of the waste disposed in the environmental location are classified according to a class. Additional information from external data sources including second properties of the environmental location is received by the computer. The computer determines a behavior of waste disposal in the environmental location over a period of time based on the classified properties of the disposed waste and the first and second properties of the environmental location, and generated a remediation plan based on the determined behavior.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: April 19, 2022
    Assignee: International Business Machines Corporation
    Inventors: Na Liu, Mei Rui Su, Pei Jian Liu, Bing Hua Zhao, Yan Liu, Zhong Fang Yuan, Wen Wang
  • Patent number: 11293035
    Abstract: The invention relates to a process for producing biogas from fibrous substrate by anaerobic fermentation. The process is characterised in that a) the fibrous substrate is fed together with process liquid to a fermenter containing anaerobic microorganisms depending on the TSS content ascertained in this fermenter, b) the fibrous substrate is subjected to wet fermentation in this fermenter to produce biogas c) the output containing fermented fibrous substrate is drawn off from the fermenter and the TSS content in the fermenter is ascertained, d) the TSS content ascertained is compared with a fixed target range and e) depending on the result from d), step a) is repeated with adjusted amounts in order to comply with the target range for the TSS in the fermenter.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: April 5, 2022
    Assignee: VERBIO VEREINIGTE BIOENERGIE AG
    Inventors: Oliver Lüdtke, Michael Schlimbach
  • Patent number: 11286507
    Abstract: An anaerobic digester is fed a feedstock, for example sludge from a municipal wastewater treatment plant, and produces a digestate. The digestate is dewatered into a cake. The cake may be dried further, for example in a thermal drier. The cake is treated in a pyrolysis system to produce a synthesis gas and biochar. The gas is sent to the same or another digester to increase its methane production. The char may be used as a soil enhancer.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: March 29, 2022
    Assignee: ANAERGIA INC.
    Inventors: Juan Carlos Josse, Andrew Benedek, Michael David Theodoulou
  • Patent number: 11274054
    Abstract: A syntrophic enrichment for enhanced digestion (SEED) system is presented, in which a retrofit addition to existing anaerobic digestion infrastructure provides improved digestion process rate and biogas quality. The system provides optimal niche environments for accelerating fermentative, syntrophic and methanogenic metabolisms to increase digestion system loading rates and enhance main digester microbiome. Prescribed media formulations, reactor integrations, and operational methods using various fixed and loose media enhance global digestion system performance. The retrofitted system enables existing plants to transition from an outdated solids-management model to one of valorized biomethane production.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: March 15, 2022
    Assignees: METRO VANCOUVER REGIONAL DISTRICT, GREATER VANCOUVER SEWERAGE & DRAINAGE DISTRICT
    Inventors: Paul Kadota, Paul Markin, Cigdem Eskicioglu
  • Patent number: 11198078
    Abstract: A chemical liquid manufacturing apparatus, including a first system and a second system, is provided. The first system includes at least one first filtration medium, selected from a first filter, a first ion exchange membrane and a first ion adsorption membrane, wherein the first system is configured to process a material of at least one time. The second system includes at least one second filtration medium, selected from a second filter, a second ion exchange membrane and a second ion adsorption membrane, wherein the second system is configured for recirculation and to process the material of at least two times.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: December 14, 2021
    Assignee: FUJIFILM Electronic Materials U.S.A., Inc.
    Inventors: Bryan Hinzie, Marcia Cole-Yocom, Michael Barker, Perry Westberg, Yuan Chen, Jack Helzer
  • Patent number: 11198628
    Abstract: A portable and modular renewable energy microgeneration apparatus is disclosed that includes at least four modular units. The first modular unit includes a mixing tank and a chopper. The second modular unit includes a buffer tank, a liquor tank, and a pasteurization tank that pasteurizes waste that has been mixed with liquid from the liquor tank by the mixer, chopped into smaller sized components by the chopper, and pre-warmed by the buffer tank. The third modular unit includes a digestion tank that performs anaerobic digestion on pasteurized waste received from the pasteurization tank. And the fourth modular unit includes a gas storage tank that stores gas generated by the waste in at least one of the mixing tank, the chopper, the buffer tank, the liquor tank, the pasteurization tank, and the digestion tank. Each of the four modular units is both portable and modular.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: December 14, 2021
    Assignee: SEAB POWER LIMITED
    Inventor: Nicolas W. Sassow