Patents Assigned to Ductor Oy
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Patent number: 9809795Abstract: The invention provides a process for producing ammonia or ammonium from an organic material by fermenting a medium comprising organic material in the presence of a mixed bacterial population capable of ammonification, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product that comprises ammonia or ammonium. The organic material includes nitrogenous compounds suitable for conversion to ammonia or ammonium.Type: GrantFiled: June 19, 2015Date of Patent: November 7, 2017Assignee: DUCTOR OYInventors: Ilona Oksanen, Susanna Kääriäinen, Kerttu Koskenniemi, Nina Virolainen, Saara Hernesniemi
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Patent number: 9670508Abstract: The invention is a method of two-phase anaerobic digestion where monitoring and adjusting the nitrogen status (carbon to nitrogen molar ratio, i.e. C/N molar ratio or total or ammoniacal nitrogen content) enables maintaining optimum conditions during the process. The method improves the use of a variety of feedstock materials or facilitates monodigestion of one feedstock. Especially the introduction of nitrogen rich feedstock materials in the process is amended. A community of hydrolyzing and acidogenic microorganisms in the first phase digester performs ammonification i.e. release of organic nitrogen as ammonia. Nitrogen and phosphorus are removed and recovered from the digestate which then undergoes biogasification in the second phase of the process. Reject water from biogasification can be recycled within the process.Type: GrantFiled: March 31, 2015Date of Patent: June 6, 2017Assignee: DUCTOR OYInventors: Ari Ketola, Kerttu Koskenniemi, Minna Lahtinen, Jarkko Nummela, Nina Virolainen, Ilkka Virkajärvi
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Patent number: 9090914Abstract: The invention provides a process for producing ammonia or ammonium from an organic material by fermenting a medium comprising organic material in the presence of a mixed bacterial population capable of ammonification, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product that comprises ammonia or ammonium. The organic material includes nitrogenous compounds suitable for conversion to ammonia or ammonium.Type: GrantFiled: October 29, 2013Date of Patent: July 28, 2015Assignee: DUCTOR OYInventors: Ilona Oksanen, Susanna Kääriäinen, Kerttu Koskenniemi, Nina Virolainen, Saara Hernesniemi
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Patent number: 9090862Abstract: The invention provides an algae cultivation system and a process for cultivating algae. The algae cultivation system includes a conduit system having a first portion exposed to illumination and a second portion occluded from illumination that is capable of containing and moving a first type of algae, and a heat exchanger in thermal contact with the second portion of the conduit system. The algae cultivation system also includes a vertical conduit connected to the first portion of the conduit system and extending vertically upward from the first portion of the conduit system, a gas collection chamber communicating with an upper end region of the vertical conduit, and an algae processing unit that is capable of processing algae from the first portion of the conduit system, and that directs the extracted sugar, water and nutrients into the second portion of the conduit system to interact with the second type of algae therein.Type: GrantFiled: July 9, 2013Date of Patent: July 28, 2015Assignee: Ductor OyInventors: Ari Ketola, Veikko Latvala
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Publication number: 20140271438Abstract: The invention provides a process for producing ammonia or ammonium from an organic material by fermenting a medium comprising organic material in the presence of a mixed bacterial population capable of ammonification, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product that comprises ammonia or ammonium. The organic material includes nitrogenous compounds suitable for conversion to ammonia or ammonium.Type: ApplicationFiled: October 29, 2013Publication date: September 18, 2014Applicant: Ductor OyInventors: Ilona Oksanen, Susanna Kääriäinen, Kerttu Koskenniemi, Nina Virolainen, Saara Hernesniemi
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Patent number: 8691551Abstract: The invention provides a process for producing phosphate from an organic material, the method including the steps of (a) fermenting an organic material in a medium in the presence of at least one microorganism, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product; (b) treating the solids of the fermentation product with acid, in a medium, e.g., aqueous medium, to solubilize phosphates from the fermentation product; wherein the organic material, and thus the solids of the fermentation product, includes bone suitable for extraction of phosphates.Type: GrantFiled: October 29, 2013Date of Patent: April 8, 2014Assignee: Ductor OyInventors: Minna Lahtinen, Elisa Lensu, Laura Tolvanen, Ilona Oksanen, Juha Karjalainen
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Patent number: 8574889Abstract: The invention provides a process for producing ammonia or ammonium from an organic material, the method by contacting the organic material with at least one hydrolytic enzyme, in a medium, to produce a medium including hydrolyzed or partially hydrolyzed organic material suitable for microbial fermentation. The hydrolyzed or partially hydrolyzed medium with organic material is then fermented in the presence of at least one microorganism capable of ammonification, wherein the fermenting is under conditions, and for a sufficient period of time, to produce a fermentation product that comprises ammonia or ammonium. The organic material includes nitrogenous compounds suitable for conversion to ammonia or ammonium.Type: GrantFiled: December 20, 2012Date of Patent: November 5, 2013Assignee: Ductor OyInventors: Veikko Latvala, Ari Ketola, Ilona Oskanen, Kerttu Koskenniemi, Maiju Laaksonen, Elisa Lensu