Patent application number | Description | Published |
20080277336 | PERMANENT ACCESS PORT - A method and apparatus for the anaerobic digestion of high-solids waste material. The apparatus includes a closed container having a relatively circular outer wall. The closed container has a first passage having an inlet in which the waste material flows in a first direction, a second passage in which the waste material flows in a second direction, and a divider having an end. The divider separates the first passage from the second passage, such that the waste material flows around the end of the divider when flowing from the first passage to the second passage. An access port is provided in a roof of the closed container with a sleeve extending into the waste material within the container. A conduit is advanced through the sleeve into the closed container for suctioning debris out of the closed container. | 11-13-2008 |
20100140169 | Method and Apparatus for Anaerobic Digestion of Organic Liquid Waste Streams - A system and method for treating high-strength organic liquid waste. Generally, the method includes feeding influent high-strength organic liquid waste including organic molecules to an anaerobic digester, converting at least a portion of the organic molecules in the liquid waste to acids using acid forming bacteria, converting at least a portion of the acids in the liquid waste to methane using methanogenic bacteria, separating the liquid waste after treatment with the methanogenic bacteria into alkaline sludge and effluent, and using the alkaline sludge to adjust the pH of the liquid waste in the anaerobic digester. In the case of acidic high-strength organic liquid wastes, a portion of the acids produced by the acid forming bacteria may be recirculated to the front of the anaerobic digester and combined with influent high-strength organic liquid waste. | 06-10-2010 |
20100173391 | Anaerobic Digester Employing Circular Tank - A method and apparatus for the anaerobic digestion of high-solids waste material. The apparatus includes a closed container having a relatively circular outer wall. The closed container has a first passage having an inlet in which the waste material flows in a first direction, a second passage in which the waste material flows in a second direction, and a divider having an end. The divider separates the first passage from the second passage, such that the waste material flows around the end of the divider when flowing from the first passage to the second passage. | 07-08-2010 |
20100201026 | COMPOSITE COMPONENTS FROM ANAEROBIC DIGESTED FIBROUS MATERIALS - The invention relates to composite components and methods of producing composite components. In yet another embodiment, the present invention relates to a method of producing a composite component using anaerobically digested biomass. In still yet another embodiment, the method further comprises using liquid effluent from the digester. In still yet another embodiment, the method further comprises wet-mat forming and cold pressing the anaerobically digested biomass and wet-mat drying under heat and pressure. | 08-12-2010 |
20110042307 | METHODS AND APPARATUSES TO REDUCE HYDROGEN SULFIDE IN A BIOGAS - Apparatuses and methods for anaerobic digestion of high-solids waste and the removal of hydrogen sulfide from a biogas are provided. The methods may include and the apparatuses may be used for moving the solid waste in a corkscrew-like fashion through a closed container. The method may further include moving the high-solids waste into contact with a heating device to facilitate the corkscrew-like movement. Other methods and apparatuses may use at least one of a partition and a conduit from which liquid or gas is discharged. The invention also relates to methods and apparatuses for reducing the amount of H | 02-24-2011 |
20120118035 | NUTRIENT RECOVERY SYSTEMS AND METHODS - Methods, systems, and apparatuses for anaerobic digestion of waste fibrous material and the recovery of nutrients are provided. Methods, systems, and apparatuses disclosed herein provide mechanisms to release dissolved gases from anaerobic digester effluent. Methods, systems and apparatuses disclosed herein can recover one or more nutrients from anaerobic digested effluent using a range of temperatures, aeration rates, aeration times, pH ranges, and settling times. | 05-17-2012 |
20120329139 | BIOSOLIDS DIGESTER AND PROCESS FOR BIOSOLIDS PRODUCTION - The invention relates to methods and apparatuses for producing Class A biosolids. In yet another embodiment, the invention relates to a method comprising digesting waste material by anaerobic digestion, and yielding Class A biosolids. In still yet another embodiment, the invention relates to a system for anaerobic digestion of waste material to produce Class A biosolids. In still yet another embodiment, the invention relates to a system for anaerobic digestion of waste material comprising a mixing chamber, a digester, a heating pit, and an effluent pit. | 12-27-2012 |
20130224803 | COMPOSITE COMPONENTS FROM ANAEROBIC DIGESTED FIBROUS MATERIALS - The invention relates to composite components and methods of producing composite components. In yet another embodiment, the present invention relates to a method of producing a composite component using anaerobically digested biomass. In still yet another embodiment, the method further comprises using liquid effluent from the digester. In still yet another embodiment, the method further comprises wet-mat forming and cold pressing the anaerobically digested biomass and wet-mat drying under heat and pressure. | 08-29-2013 |
20130280757 | ALGAE BIOREACTOR, SYSTEM AND PROCESS - The present disclosure provides an algae bioreactor and process. The algae bioreactor includes a container with an inlet and an outlet. An algae suspension present in the container interior moves from an inlet to an outlet along a flowpath. A light assembly, a liftwall, and a gas conduit are located in the container interior. The gas conduit extends along a length of the container and emits gas bubbles into the algae suspension. A diffuser is located on a bottom wall of the container, The flowpath, the liftwall, the gas conduit, and the diffuser produce an active flow of the algae from the container inlet to the container outlet. The container may be a deep-vessel container. | 10-24-2013 |
20130309759 | METHODS AND APPARATUSES FOR REMOVAL OF HYDROGEN SULFIDE AND CARBON DIOXIDE FROM BIOGAS - Methods, systems and apparatuses herein provide a unique and novel process to remove H | 11-21-2013 |
20140314657 | NUTRIENT RECOVERY SYSTEMS AND METHODS - Methods, systems, and apparatuses for anaerobic digestion of waste fibrous material and the recovery of nutrients are provided. Methods, systems, and apparatuses disclosed herein provide mechanisms to release dissolved gases from anaerobic digester effluent. Methods, systems and apparatuses disclosed herein can recover one or more nutrients from anaerobic digested effluent using a range of temperatures, aeration rates, aeration times, pH ranges, and settling times. | 10-23-2014 |
20140377855 | BIOSOLIDS DIGESTER AND PROCESS FOR BIOSOLIDS PRODUCTION - The invention relates to methods and apparatuses for producing Class A biosolids. In yet another embodiment, the invention relates to a method comprising digesting waster material by anaerobic digestion, and yielding Class A biosolids. In still yet another embodiment, the invention relates to a system for anaerobic digestion of waste material to produce Class A biosolids. In still yet another embodiment, the invention relates to a system for anaerobic digestion of waste material comprising a mixing chamber, a digester, a heating pit, and an effluent pit. | 12-25-2014 |