Patents by Inventor Magnus Christensson
Magnus Christensson has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10662098Abstract: The invention pertains to a method (200, 300, 400) of at least partly removing at least one micropollutant from wastewater (104) comprising carbogenous compounds and at least one micropollutant.Type: GrantFiled: March 7, 2017Date of Patent: May 26, 2020Assignee: Veolia Water Solutions & Technologies SupportInventors: Magnus Christensson, Thomas Welander
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Patent number: 10252927Abstract: A process for converting ammonium (NH4+) of a mainstream of a wastewater plant to dinitrogen gas (N2), including the consecutive steps of i.) removing biodegradable carbon compounds in the mainstream, ii.) converting ammonium (NH4+) in the mainstream to nitrite (NO2?) in an aerated biological process containing ammonium oxidizing bacteria (AOB) in a nitration vessel (133a-133d); and iii.) denitrifying the resulting stream from step ii.) to dinitrogen gas in an anammox vessel (200). Growth of nitrite oxidizing bacteria (NOB) in step ii.) is prevented by periodically subjecting the bacteria in said nitration vessel (133a-133d) to water suppressing growth of nitrite oxidizing bacteria (NOB).Type: GrantFiled: September 24, 2015Date of Patent: April 9, 2019Assignee: Veolia Water Solutions & Technologies SupportInventors: Magnus Christensson, Thomas Welander, Maria Piculell
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Publication number: 20190100452Abstract: The invention pertains to a method (200, 300, 400) of at least partly removing at least one micropollutant from wastewater (104) comprising carbogenous compounds and at least one micropollutant.Type: ApplicationFiled: March 7, 2017Publication date: April 4, 2019Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORTInventors: Magnus CHRISTENSSON, Thomas WELANDER
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Publication number: 20170291839Abstract: A process for converting ammonium (NH4+) of a mainstream of a wastewater plant to dinitrogen gas (N2), including the consecutive steps of i.) removing biodegradable carbon compounds in the mainstream, ii.) converting ammonium (NH4+) in the mainstream to nitrite (NO2?) in an aerated biological process containing ammonium oxidizing bacteria (AOB) in a nitration vessel (133a-133d); and iii.) denitrifying the resulting stream from step ii.) to dinitrogen gas in an anammox vessel (200). Growth of nitrite oxidizing bacteria (NOB) in step ii.) is prevented by periodically subjecting the bacteria in said nitration vessel (133a-133d) to water suppressing growth of nitrite oxidizing bacteria (NOB).Type: ApplicationFiled: September 24, 2015Publication date: October 12, 2017Applicant: Veolia Water Solutions & Technologies SupportInventors: Magnus Christensson, Thomas Welander, Maria Piculell
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Publication number: 20150321937Abstract: An integrated fixed film activated sludge sequencing batch reactor is provided where both suspended biomass and biomass supported on biofilm carriers are utilized to biologically treat wastewater received by the sequencing batch reactor. The sequencing batch reactor includes two hydraulically connected tanks with suspended biomass being contained in at least one tank and biomass supported on biofilm carriers in the other tank.Type: ApplicationFiled: May 7, 2014Publication date: November 12, 2015Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORTInventors: Hong W. Zhao, Michael Leon Gutshall, Glenn Thesing, Richard W. DiMassimo, Magnus Christensson
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Patent number: 8864993Abstract: A process that utilizes ammonium oxidizing bacteria (AOB) and anaerobic ammonium oxidizing (ANAMMOX) bacteria to remove ammonium from a wastewater stream. Sludge separated from the wastewater in a mainstream is processed in a sidestream that includes an anaerobic digester, a dewatering system, and a biofilm reactor. The anaerobic digester produces digested sludge that is dewatered, producing reject water that includes a relatively high ammonium concentration and a relatively low organic carbon concentration and a relatively high temperature. The reject water is treated in a sidestream deammonification biofilm reactor that includes biofilm carriers seeded with AOB and ANAMMOX bacteria that are effective to remove ammonium from the reject water. AOB and ANAMMOX bacteria on the media carriers is utilized to contact the wastewater in the mainstream and to remove ammonium therefrom.Type: GrantFiled: April 4, 2012Date of Patent: October 21, 2014Assignee: Veolia Water Solutions & Technologies SupportInventors: Hong W. Zhao, Thomas Welander, Magnus Christensson, Romain Lemaire
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Publication number: 20140238931Abstract: A method is provided for removing BOD and ammonium from wastewater in a mainstream process that includes deammonification. Wastewater including BOD and ammonium is directed to a first sequence batch reactor (SBBR). The wastewater is treated in the first SBBR and in the process nitrite is accumulated such that the wastewater includes a nitrite-to-ammonium stoichiometric ratio that enables anammox bacteria to effectively remove ammonium and nitrite from the wastewater. Thereafter the wastewater is directed the wastewater from the first SBBR to a second SBBR. The second SBBR is operated under anoxic conditions and employs anammox bacteria to remove ammonium and nitrite from the wastewater. In certain embodiments, a pre-denitrification step or process is employed in the first SBBR to remove BOD.Type: ApplicationFiled: February 26, 2013Publication date: August 28, 2014Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORTInventors: Richard D. DiMassimo, Hong W. Zhao, Glenn Thesing, Romain Lemaire, Magnus Christensson
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Publication number: 20130264280Abstract: A process that utilizes ammonium oxidizing bacteria (AOB) and anaerobic ammonium oxidizing (ANAMMOX) bacteria to remove ammonium from a wastewater stream. Sludge separated from the wastewater in a mainstream is processed in a sidestream that includes an anaerobic digester, a dewatering system, and a biofilm reactor. The anaerobic digester produces digested sludge that is dewatered, producing reject water that includes a relatively high ammonium concentration and a relatively low organic carbon concentration and a relatively high temperature. The reject water is treated in a sidestream deammonification biofilm reactor that includes biofilm carriers seeded with AOB and ANAMMOX bacteria that are effective to remove ammonium from the reject water. In order to remove ammonium from the wastewater in the mainstream, the AOB and ANAMMOX bacteria on the media carriers is utilized to contact the wastewater in the mainstream and to remove ammonium therefrom.Type: ApplicationFiled: April 4, 2012Publication date: October 10, 2013Applicant: VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORTInventors: Hong W. Zhao, Thomas Welander, Magnus Christensson, Romain Lemaire
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Patent number: 8170859Abstract: Arbitrary, unmodified code and/or software may be executed directly on a host processor operating in a virtualized mode using hardware virtualization support and performance counters. The arbitrary software may be run on the host processor until the host processor exits from the virtualized mode. An end execution time may be calculated in response to the host processor exiting from the virtualized mode. An event may then be handled based on an execution time at which the host processor exited from the virtualized mode and a time at which a scheduled event was to occur.Type: GrantFiled: April 28, 2006Date of Patent: May 1, 2012Assignee: Intel CorporationInventors: Magnus Christensson, Samuel Rydh, Magnus Vesterlund, Johan Rydberg
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Publication number: 20050015754Abstract: The present invention discloses method and system for a multimode simulator having an emulation core with improved performance. In an embodiment of the invention, the overhead caused by the exclusive use of the simulation technique using one instruction-at-a-time interpretation is reduced by additionally using binary translation for executed blocks of interpreted instructions (i.e. that contain no jumps out of the block) from the same instruction set architecture description. Since performing translations too frequently can undesirably increase overhead by overloading the cache, the binary translation is only performed for blocks that are executed frequently. Once the blocks are translated e.g. by forming the block from instructions via templates and generating the collective code, the overall simulator performance is significantly improved by running the blocks instead of running the instructions one-at-a-time.Type: ApplicationFiled: June 18, 2004Publication date: January 20, 2005Applicant: VIRTUTECH ABInventors: Bengt Werner, Magnus Christensson, Fredrik Larsson