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7615155 |
Methods for removal of non-digestible matter from an upflow anaerobic digester
Methods for steady state operation of an upflow anaerobic digester using organic matter that contains a portion of solid, non-digestible matter include (1) providing an upflow anaerobic digester,...
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7615154 |
Loop reactor with clog-resistant gas distribution
Special guide means 7 are located in the interior of a loop reactor for circulating the reactor contents. The guide means 7 has at least one central gas supply means 1 with gas distribution...
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7604743 |
Process for producing ethanol and for energy recovery
The present invention is directed to a process for the production of ethanol and energy. The process includes the steps of fermenting a corn mash in an aqueous medium to produce a beer. Next, the...
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7585413 |
Method and apparatus for treating animal waste and wastewater
Novel methods and apparatuses are disclosed for the treatment of wastewater to reduce, often associated, offensive odors. Irrigation of oxygenated liquid on top of a permeable cover effectively...
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7582467 |
Method and apparatus for processing organic material
A method and an apparatus for processing organic material, the method employing at least two reactors and including the steps of combining carbon dioxide or carbon-dioxide containing gas and...
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7569146 |
By-products from fermentation still bottoms
The disclosed invention is an improved method for treating ethanol distillation still bottoms by recovering, through solids separation and pressurized membrane filtration, potable water from still...
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7560026 |
Two-stage anaerobic digester
A digester processes animal waste and other organic matter by accelerating the natural bacterial process of digestion. This is achieved by constructing a system that mimics the natural physical...
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7556737 |
Anaerobic phased solids digester for biogas production from organic solid wastes
The present invention provides methods for the generation of methane by a two phase anaerobic phase system (APS) digestion of organic substrates. Also provided is a device for practicing the...
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7556736 |
Process and system for converting biomass materials into energy to power marine vessels
The process and system of the invention converts biomass materials into energy to power a large marine vessel without the problematic environmental releases of either liquids to the sea or...
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7550085 |
Bioventing remediation method
Bioventing methods create a bacterial treatment zone at a contaminated site by supplying a hydrocarbon food source to the treatment zone, and recirculating the hydrocarbon to the treatment zone....
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7540961 |
Methods for manufacturing hydrogen using anaerobic digestion
A method for manufacturing a biomass enriched with hydrogen-producing bacteria or spores includes providing a biomass comprising a hydrogen-producing bacteria and a competing bacteria and treating...
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7527734 |
Rapid non-equilibrium decompression of microorganism-containing waste streams
A process for treating a microorganism-containing stream includes the steps of passing the stream through a chamber, pressurizing the stream in the chamber to a pressure greater than 14.7 p.s.i.g.,...
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7524418 |
Process for producing ethanol and for energy recovery
The present invention is directed to a process for the production of ethanol and energy. The process includes the steps of fermenting a corn mash in an aqueous medium to produce a beer. Next, the...
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7520990 |
Anaerobic wastewater treatment system and method
An anaerobic wastewater treatment system includes a recycle tank, a bioreactor tank and a bioselector for recapturing anaerobic microbial consortia particles escaping from the bioreactor tank and...
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7513998 |
“In-situ” ballast water treatment method
A method and system for ballast water treatment are provided. A vacuum is applied directly to an existing vent of a vessel's ballast water tank during the vessel's voyage. The applied vacuum is in...
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7507341 |
Method of and apparatus for converting biological materials into energy resources
A method of converting biological material into energy resources includes transmitting biological material to a pulsed electric field (PEF) station, and applying a PEF to the biological material...
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7491331 |
Methods for total nitrogen removal
A method and related apparatus for oxidation and reduction of a reduced aqueous nitrogen contaminant.
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7485230 |
Integrated cogeneration wastewater sewage and waste polar fats/ oils/ greases/waxes (FOG) waste treatment method and facility
A system and method integrating treatment of waste, polar Fats/Oils/Greases (FOG) with conventional anaerobic wastewater treatment facilities for biologically fueling digestion of solids in, and...
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7485229 |
Closed sulfur circulation system
The present invention provides a closed sulfur circulation wastewater treatment system, which combines autotrophic and heterotrophic denitrification to recycle sulfates. Particularly, the present...
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7479226 |
System for removal of contaminants from aqueous solution
A system and method for removal of uranium and other contaminants from aqueous solution, utilizing live algae, are described. The system includes a bioreactor, in which a reaction mixture of live...
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7468133 |
Heated baffle anaerobic lagoon digester
A new process for the production of methane gas from flush dairy operations utilizing heated baffles in a lagoon is disclosed. The baffles are aligned in rows with the rows oriented perpendicular...
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7468132 |
Method for treatment of animal waste
A method and a facility for the treatment of waste from concentrated animal feed operations are disclosed. The method includes receiving manure at a central location, digesting the manure and...
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7455773 |
Package wastewater chemical/biological treatment method
A chemical/biological wastewater treatment plant method and apparatus employing rapid sludge chemical dewatering technology in conjunction with an environmental biological system for treating the...
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7452467 |
Induced sludge bed anaerobic reactor
An induced sludge bed anaerobic reactor includes a vessel in which a septum or other partition is positioned to maintain solids in wastewater being treated toward a lower zone in the reactor. A gas...
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7452466 |
Method and apparatus for anaerobic digestion of biomasses and generation of biogas
A method and apparatus for an anaerobic digestion of biomasses with generation of biogas and sludge, wherein a hydrolyzation phase and a following fermentation of the biomass are included, wherein...
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7452465 |
Incubation treatment of sludge for pathogen reduction prior to digestion
A method of treating sewage sludge comprises a pathogen reduction stage in which raw sludge is incubated for a predetermined incubation period at a temperature in the mesophilic temperature range....
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7449113 |
Controlling wastewater treatment processes
Methods and apparatus for continuing, automated control of wastewater treatment processes. In certain preferred embodiments, method and apparatus for control of aeration in suspended growth...
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7445713 |
Method and facility for treating sludges
A method and apparatus for anaerobic treatment of wastewater and sludge in a digestive reactor in which the length of stay of hydraulic components is decoupled from that of particulate components...
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7438813 |
Ammonia oxidation and pipe denitrification
In a biological wastewater treatment system, the addition of an intermittently aerated second bioreactor to accomplish ammonium oxidation to predominately nitrite and then to achieve...
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7427357 |
Process and apparatus for anaerobic treatment of sulfur compound-containing wastewater
An object of the present invention is to provide a process for a high-performance upflow anaerobic sludge treatment (methane fermentation treatment) targeting an organic wastewater containing an...
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7416668 |
Wastewater chemical/biological treatment plant recovery apparatus and method
A chemical/biological wastewater treatment plant method and apparatus employing rapid sludge chemical dewatering technology in conjunction with an environmental biological system for treating the...
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7410583 |
Process of treating organic waste for anaerobic digestion
A process of treating organic waste such as food wastes for anaerobic digestion including preparing a waste-slurry from organic waste such as food wastes, transferring the organic waste-slurry to a...
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7407579 |
Method and apparatus for treating ammonium-containing liquid
The method for treating an ammonium-containing liquid which biologically denitrifies ammonium contained in the ammonium-containing liquid in an anaerobic atmosphere, the method comprises the steps...
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7402247 |
System for wastewater treatment and digestion having aerobic and anaerobic treatment zones
The specification discloses a method for treating and digesting organic wastes in a wastewater stream. A first wastewater influent stream is mixed with an activated sludge biomass in an aerobic...
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7390410 |
Method and apparatus for the anaerobic treatment of waste
A method and apparatus for the anaerobic treatment of waste water is described which includes a plug flow bioreactor containing a single bed of inert microbial attachment media and anaerobic...
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7384554 |
Methods for total nitrogen removal from waste streams
A method and related apparatus for oxidation and reduction of a reduced aqueous nitrogen contaminant, as can be embodied by a system comprising nitrifying and denitrifying bacteria and contacting...
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7378022 |
System and methods for biological selenium removal from water
A biological system for removing selenium from waste water comprises a first immobilized cell bioreactor (ICB) and a selenide removal module. The first ICB comprises a chamber having a substrate...
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7374683 |
Biofilter and method for filtering a waste liquid
The biofilter is used for the purification of a waste liquid using layers of filtering material, wherein the waste liquid moves downwardly by gravity while an O 2 -containing gas moves upwardly...
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7374682 |
Method and apparatus for the methane fermentation treatment of wastewater containing sulfur compound
A method and apparatus for the anaerobic methane fermentation treatment of a wastewater containing a sulfur compound. An oxidizing agent is added to an organic wastewater to oxidize the sulfur...
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7374059 |
Covering systems and venting methods
A covering system that includes a first membrane, a first flotation member coupled to the first membrane. The first flotation member includes a first float and a first float compartment membrane,...
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7332083 |
Process and device for biological treatment of a suspension in a bioreactor
A process and a device for biological treatment of a suspension in a bioreactor is described, which is made especially as a loop reactor with a central guide pipe ( 2 ) and gas injection ( 3 ). In...
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7320753 |
Anaerobic digester system for animal waste stabilization and biogas recovery
An ambient anaerobic digester system for anaerobic digestion of animal waste with biogas production and recovery is provided. The anaerobic digester system includes a substantially flexible bladder...
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7318894 |
Method and system for treating wastewater
A method and system is disclosed for treating wastewater that utilizes membrane processes, preferably in combination with anaerobic biological treatment, to provide for economical and...
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7311834 |
Apparatus for the treatment of particulate biodegradable organic waste
An apparatus for treating particulate biodegradable organic waste includes a thermal hydrolysis reactor receiving the particulate biodegradable organic waste for performing thermal hydrolysis at a...
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7311833 |
Zero excess sludge membrane bioreactor
An inclined plate coupled membrane bioreactor for treating feed water having excessive level of nutrients in particular chemical oxygen demand and total nitrogen and suspended solids has an aerobic...
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7309431 |
Method for breaking a flap-valve attachment condition under a membrane cover
In a covered wastewater reservoir, a gas passage is defined under the membrane cover and along the sides of the reservoir. An accumulation of bio-gases is held captive between the membrane cover...
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7285694 |
Thermobaric molecular fractionation
Systems and methods for converting organic material into commercially viable products, such as burnable low sulfur engine fuels. The system of the present invention includes an anaerobic stripping...
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7267774 |
Fuel and by-products from fermentation still bottoms
The disclosed invention is an improved method for treating ethanol distillation still bottoms by recovering, through solids separation and pressurized membrane filtration, potable water from still...
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7258790 |
Controlled eutrophication system and process
A controlled eutrophication system and process are disclosed. The system includes the combination of a partitioned aquaculture system in conjunction with an anaerobic digester. Wastewater...
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7226539 |
Bionest reactor for the application of anaerobic wastewater treatment and bioenergy recovery
A method of treating wastewater using an anaerobic bioreactor which contains a “bio-nest” structure to retain the microbial content and improve digestion efficiency is disclosed. The bionest...
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