OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Leatherwood, Roland
Britton, Ahren
Verigin, Mikaela
Sathyanarayana, Ram Prasad Melahalli
Abrégé
A fertilizer comprises an intermediate-release source of phosphorus. The intermediate- source of phosphorus may be schertelite. In one embodiment, the intermediate-source of phosphorus may consist substantially all of the phosphorous content in the fertilizer. In other embodiments, the fertilizer further comprises one or both of a slow-release and fast- release source of phosphorus. The fertilizer may be in the form of a homogenous prill. A number of methods may be used to make such fertilizers.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Britton, Ahren
Verigin, Mikaela
Leatherwood, Roland
Sathyanarayana, Ram Prasad Melahalli
Abrégé
A fertilizer comprises an intermediate-release source of phosphorus. The intermediate- source of phosphorus may be schertelite. In one embodiment, the intermediate-source of phosphorus may consist substantially all of the phosphorous content in the fertilizer. In other embodiments, the fertilizer further comprises one or both of a slow-release and fast- release source of phosphorus. The fertilizer may be in the form of a homogenous prill. A number of methods may be used to make such fertilizers.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Leatherwood, Roland
Van Spingelen, Robert
Britton, Ahren
Abrégé
A fertilizer comprises a slow release source of phosphorus and a slow release source of sulfur. The slow release source of phosphorus may be struvite. The slow release source of sulfur may be polyhalite. The fertilizer may further contain a fast release source of phosphorus such as a water-soluble phosphorus-containing material. The fertilizer may be in the blended form or in the co-granular form. A number of methods may be used to make such co-granular fertilizers.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Leatherwood, Roland
Van Spingelen, Robert
Britton, Ahren
Abrégé
A fertilizer comprises a slow release source of phosphorus and a slow release source of sulfur. The slow release source of phosphorus may be struvite. The slow release source of sulfur may be polyhalite. The fertilizer may further contain a fast release source of phosphorus such as a water-soluble phosphorus-containing material. The fertilizer may be in the blended form or in the co-granular form. A number of methods may be used to make such co-granular fertilizers.
C05D 11/00 - Mélanges d'engrais couverts par plus d'un des groupes principaux
C05G 1/00 - Mélanges d'engrais faisant partie individuellement de différentes sous-classes de
C05G 3/00 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais
C05G 3/20 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour éviter que les engrais soient réduits en poudreAdditifs anti-poussière
C05G 3/40 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur le dosage de l’engrais ou sur sa vitesse de libérationMélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur la solubilité
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Leatherwood, Roland
Van Spingelen, Robert
Britton, Ahren
Abrégé
A fertilizer comprises a slow release source of phosphorus and a slow release source of sulfur. The slow release source of phosphorus may be struvite. The slow release source of sulfur may be polyhalite. The fertilizer may further contain a fast release source of phosphorus such as a water-soluble phosphorus-containing material. The fertilizer may be in the blended form or in the co-granular form. A number of methods may be used to make such co-granular fertilizers.
C05G 3/20 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour éviter que les engrais soient réduits en poudreAdditifs anti-poussière
C05G 3/40 - Mélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur le dosage de l’engrais ou sur sa vitesse de libérationMélanges d'un ou plusieurs engrais avec des additifs n'ayant pas une activité spécifique d'engrais pour influer sur la solubilité
Ostara Nutrient Recovery Technologies Inc. (Canada)
Inventeur(s)
Prasad, Melahalli Sathyanarayana Ram
Britton, Ahren
Verigin, Mikaela
Abrégé
Methods and apparatus for precipitating dissolved materials from an aqueous solution are provided. In an embodiment, the method comprises: introducing the aqueous solution into a reactor and introducing a source of magnesium (Mg) into the reactor in a quantity sufficient to cause the dissolved materials to precipitate into crystals. The source of Mg is introduced into the reactor in the form of particles of a Mg-containing material. The source of Mg has a solubility in the aqueous solution of less than about 1 g/L. Alternatively, the concentration of Mg in the reactor is less than about 0.03 mol/L. In an embodiment, the apparatus comprises a reaction tank having an inlet and an outlet and a hydration tank associated with the reaction tank and configured for hydrating a source of Mg in an aqueous solvent and introducing the source of Mg as a hydrated slurry into the reaction tank.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Britton, Ahren
Verigin, Mikaela
Baylor, Bryan
Sathyanarayana, Ram Prasad Melahalli
Deberry, Ryan
Pinney, Steven L.
Abrégé
Embodiments described herein provide systems and methods for a phosphate processing system with integrated sub-systems, such as a phosphoric acid plant, precipitation system, crystallizer system, rinsing system, granulation system, pond water system, organics removal system, and/or exhaust treatment system. Such sub-systems can be integrated with each other by using one or more output streams from one or more sub-systems as one or more input streams for one or more sub-systems. In some embodiments, the phosphate processing system can produce phosphoric acid, struvite containing fertilizer, fertilizer using recycled struvite, magnesium or fluoride containing compositions using recycled magnesium or fluoride, and other components using phosphoric acid collected from a phosphoric acid and gypsum composition or using sludge collected from a waste stream, for example.
C01B 25/46 - Préparation comportant une extraction solvant-solvant
C05B 1/00 - Superphosphates, c.-à-d. engrais produits par la réaction de phosphates minéraux ou d'os avec l'acide sulfurique ou l'acide phosphorique en proportions et concentrations telles qu'elles donnent directement des produits solides
C05B 19/00 - Granulation ou pastillage des engrais phosphatés autres que les scories
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Prasad, Melahalli Sathyanarayana Ram
Britton, Ahren
Verigin, Mikaela
Abrégé
Methods and apparatus for precipitating dissolved materials from an aqueous solution are provided. In an embodiment, the method comprises: introducing the aqueous solution into a reactor and introducing a source of magnesium (Mg) into the reactor in a quantity sufficient to cause the dissolved materials to precipitate into crystals. The source of Mg is introduced into the reactor in the form of particles of a Mg-containing material. The source of Mg has a solubility in the aqueous solution of less than about 1 g/L. Alternatively, the concentration of Mg in the reactor is less than about 0.03 mol/L. In an embodiment, the apparatus comprises a reaction tank having an inlet and an outlet and a hydration tank associated with the reaction tank and configured for hydrating a source of Mg in an aqueous solvent and introducing the source of Mg as a hydrated slurry into the reaction tank.
B01J 8/24 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé"
C01B 25/45 - Phosphates contenant plusieurs métaux ou un métal et l'ammonium
C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
C02F 1/54 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension utilisant des produits organiques
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
21.
TREATMENT OF PHOSPHATE-CONTAINING WASTEWATER AND METHODS FOR FINES CONTROL
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Prasad, Melahalli Sathyanarayana Ram
Britton, Ahren
Verigin, Mikaela
Abrégé
Methods and apparatus for precipitating dissolved materials from an aqueous solution are provided. In an embodiment, the method comprises: introducing the aqueous solution into a reactor and introducing a source of magnesium (Mg) into the reactor in a quantity sufficient to cause the dissolved materials to precipitate into crystals. The source of Mg is introduced into the reactor in the form of particles of a Mg-containing material. The source of Mg has a solubility in the aqueous solution of less than about 1 g/L. Alternatively, the concentration of Mg in the reactor is less than about 0.03 mol/L. In an embodiment, the apparatus comprises a reaction tank having an inlet and an outlet and a hydration tank associated with the reaction tank and configured for hydrating a source of Mg in an aqueous solvent and introducing the source of Mg as a hydrated slurry into the reaction tank.
C02F 1/54 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension utilisant des produits organiques
B01J 8/24 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé"
C01B 25/45 - Phosphates contenant plusieurs métaux ou un métal et l'ammonium
C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
22.
Methods and systems for recovering phosphorus from wastewater including digestate recycle
Ostara Nutrient Recovery Technologies Inc. (Canada)
Inventeur(s)
Cote, Pierre
Britton, Ahren
Sathyanarayana, Ram Prasad Melahalli
Hyslop, Rhonda Maria
Abrégé
A method for treating, and recovering phosphate compounds from, phosphate-containing wastewater. The method includes the steps of: (a) removing fluoride from the wastewater; (b) recovering a phosphate compound from the wastewater by maintaining supersaturation conditions for the phosphate compound; and (c) polishing the wastewater. A silica removal step may be optionally performed after step (a) and before step (b).
Ostara Nutrient Recovery Technologies Inc. (Canada)
Inventeur(s)
Clark, Donald R.
Froehlich, Dan Michael
Britton, Ahren Thomas
Abrégé
A homogeneous fertilizer granule comprises slow-release (e.g. struvite) and fast release sources of phosphorus (P). The homogeneous fertilizer granule may further contain other essential nutrients and micronutrients required by plants. A number of methods may be used to make such granules. One method includes introducing a struvite slurry or fines and a liquid supply of water soluble P into a granulator. Alternatively, dry raw materials can be mixed with water/steam and/or another binder prior to being fed into a granulator. In another embodiment, pre-mixed dry raw materials are mechanically compacted and crushed to yield homogeneous fertilizer particles.
Ostara Nutrient Recovery Technologies Inc. (Canada)
Inventeur(s)
Clark, Donald R.
Froehlich, Dan Michael
Britton, Ahren Thomas
Abrégé
A homogeneous fertilizer granule comprises slow-release (e.g. struvite) and fast release sources of phosphorus (P). The homogeneous fertilizer granule may further contain other essential nutrients and micronutrients required by plants. A number of methods may be used to make such granules. One method includes introducing a struvite slurry or fines and a liquid supply of water soluble P into a granulator. Alternatively, dry raw materials can be mixed with water/steam and/or another binder prior to being fed into a granulator. In another embodiment, pre-mixed dry raw materials are mechanically compacted and crushed to yield homogeneous fertilizer particles.
Ostara Nutrient Recovery Technologies Inc. (Canada)
Inventeur(s)
Britton, Ahren Thomas
Clark, Donald R.
Sathyanarayana, Ram Prasad Melahalli
Abrégé
Methods and apparatus for precipitating dissolved materials from a solution involve reduction of fines. In an embodiment, the method comprises: introducing a solution into a reactor, causing the dissolved materials in the solution to precipitate into crystals under a first reaction condition, adjusting the reaction condition from the first reaction condition to a second reaction condition, maintaining the reaction condition in the second reaction condition to cause a sub-population of the crystals to dissolve, and adjusting the reaction condition from the second reaction condition to the first reaction condition. In an embodiment, the apparatus comprises a reaction tank, a recycling path and at least an acid injector which is configured for dosing an acid into solution flow in the recycling path.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Britton, Ahren Thomas
Clark, Donald R.
Sathyanarayana, Ram Prasad Melahalli
Abrégé
Methods and apparatus for precipitating dissolved materials from a solution involve reduction of fines. In an embodiment, the method comprises: introducing a solution into a reactor, causing the dissolved materials in the solution to precipitate into crystals under a first reaction condition, adjusting the reaction condition from the first reaction condition to a second reaction condition, maintaining the reaction condition in the second reaction condition to cause a sub-population of the crystals to dissolve, and adjusting the reaction condition from the second reaction condition to the first reaction condition. In an embodiment, the apparatus comprises a reaction tank, a recycling path and at least an acid injector which is configured for dosing an acid into solution flow in the recycling path.
B01J 8/24 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés les particules étant fluidisées selon la technique du "lit fluidisé"
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Clark, Donald R.
Froehlich, Dan Michael
Britton, Ahren Thomas
Abrégé
A homogeneous fertilizer granule comprises slow-release (e.g. struvite) and fast release sources of phosphorus (P). The homogeneous fertilizer granule may further contain other essential nutrients and micronutrients required by plants. A number of methods may be used to make such granules. One method includes introducing a struvite slurry or fines and a liquid supply of water soluble P into a granulator. Alternatively, dry raw materials can be mixed with water/steam and/or another binder prior to being fed into a granulator. In another embodiment, pre-mixed dry raw materials are mechanically compacted and crushed to yield homogeneous fertilizer particles.
C05B 1/00 - Superphosphates, c.-à-d. engrais produits par la réaction de phosphates minéraux ou d'os avec l'acide sulfurique ou l'acide phosphorique en proportions et concentrations telles qu'elles donnent directement des produits solides
C05B 7/00 - Engrais à base essentielle d'orthophosphates alcalins ou d'ammonium
C05B 9/00 - Engrais à base essentielle de phosphates ou phosphates doubles de magnésie
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Clark, Donald R.
Froehlich, Dan Michael
Britton, Ahren Thomas
Abrégé
A homogeneous fertilizer granule comprises slow-release (e.g. struvite) and fast release sources of phosphorus (P). The homogeneous fertilizer granule may further contain other essential nutrients and micronutrients required by plants. A number of methods may be used to make such granules. One method includes introducing a struvite slurry or fines and a liquid supply of water soluble P into a granulator. Alternatively, dry raw materials can be mixed with water/steam and/or another binder prior to being fed into a granulator. In another embodiment, pre-mixed dry raw materials are mechanically compacted and crushed to yield homogeneous fertilizer particles.
C05B 1/00 - Superphosphates, c.-à-d. engrais produits par la réaction de phosphates minéraux ou d'os avec l'acide sulfurique ou l'acide phosphorique en proportions et concentrations telles qu'elles donnent directement des produits solides
C05B 7/00 - Engrais à base essentielle d'orthophosphates alcalins ou d'ammonium
C05B 9/00 - Engrais à base essentielle de phosphates ou phosphates doubles de magnésie
C05B 19/00 - Granulation ou pastillage des engrais phosphatés autres que les scories
30.
Treatment of phosphate-containing wastewater with fluorosilicate and phosphate recovery
Ostara Nutrient Recovery Technologies Inc. (Canada)
Inventeur(s)
Cote, Pierre
Britton, Ahren
Sathyanarayana, Ram Prasad Melahalli
Hyslop, Rhonda Maria
Clark, Donald Robert
Abrégé
A method for treating phosphate-containing wastewater, such as phosphogypsum pond water. The method includes the steps of: (a) adding a first cation to the wastewater to precipitate fluorosilicate from the wastewater; (b) adding a second cation to the wastewater to precipitate fluoride from the wastewater; (c) raising the pH of the wastewater to precipitate the second cation from the wastewater; (d) removing residual silica from the wastewater; and (e) precipitating phosphate from the wastewater. The precipitated fluorosilicate may be sodium fluorosilicate. The precipitated phosphate may be struvite.
Ostara Nutrient Recovery Technologies Inc. (Canada)
Inventeur(s)
Britton, Ahren
Abrégé
Apparatus and methods for removing solutes from wastewater are disclosed. An embodiment provides a reactor tank having a manifold located at or near an interface between a lower (upstream) section having a first cross-section and a higher (downstream) section having a second cross-section smaller than the first cross section. An inlet for wastewater to enter the reactor tank is located in or below the first cross-section. A recycling path is provided for removing wastewater from the manifold and recycling at least part of the removed wastewater into the reactor tank. An outlet for water to exit the reactor tank is located downstream from the manifold.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Britton, Ahren
Sathyanarayana, Ram Prasad Melahalli
Clark, Donald Robert
Cote, Pierre
Hyslop, Rhonda Maria
Abrégé
A method for treating phosphate-containing wastewater, such as phosphogypsum pond water. The method includes the steps of: (a) adding a first cation to the wastewater to precipitate fluorosilicate from the wastewater; (b) adding a second cation to the wastewater to precipitate fluoride from the wastewater; (c) raising the pH of the wastewater to precipitate the second cation from the wastewater; (d) removing residual silica from the wastewater; and (e) precipitating phosphate from the wastewater. The precipitated fluorosilicate may be sodium fluorosilicate. The precipitated phosphate may be struvite.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Cote, Pierre
Britton, Ahren
Sathyanarayana, Ram, Prasad, Melahalli
Hyslop, Rhonda, Maria
Clark, Donald Robert
Abrégé
A method for treating phosphate-containing wastewater, such as phosphogypsum pond water. The method includes the steps of: (a) adding a first cation to the wastewater to precipitate fluorosilicate from the wastewater; (b) adding a second cation to the wastewater to precipitate fluoride from the wastewater; (c) raising the pH of the wastewater to precipitate the second cation from the wastewater; (d) removing residual silica from the wastewater; and (e) precipitating phosphate from the wastewater. The precipitated fluorosilicate may be sodium fluorosilicate. The precipitated phosphate may be struvite.
Ostara Nutrient Recovery Technologies Inc. (Canada)
Inventeur(s)
Cote, Pierre
Britton, Ahren
Sathyanarayana, Ram Prasad Melahalli
Hyslop, Rhonda Maria
Abrégé
A method for treating, and recovering phosphate compounds from, phosphate-containing wastewater. The method includes the steps of: (a) removing fluoride from the wastewater; (b) recovering a phosphate compound from the wastewater by maintaining super saturation conditions for the phosphate compound; and (c) polishing the wastewater. A silica removal step may be optionally performed after step (a) and before step (b).
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Britton, Ahren
Abrégé
Apparatus and methods for removing solutes from wastewater are disclosed. An embodiment provides a reactor tank having a manifold located at or near an interface between a lower (upstream) section having a first cross-section and a higher (downstream) section having a second cross-section smaller than the first cross section.. An inlet for wastewater to enter the reactor tank is located in or below the first cross-section. A recycling path is provided for removing wastewater from the manifold and recycling at least part of the removed wastewater into the reactor tank. An outlet for water to exit the reactor tank is located downstream from the manifold.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Britton, Ahren
Abrégé
Apparatus and methods for removing solutes from wastewater are disclosed. An embodiment provides a reactor tank having a manifold located at or near an interface between a lower (upstream) section having a first cross-section and a higher (downstream) section having a second cross-section smaller than the first cross section.. An inlet for wastewater to enter the reactor tank is located in or below the first cross-section. A recycling path is provided for removing wastewater from the manifold and recycling at least part of the removed wastewater into the reactor tank. An outlet for water to exit the reactor tank is located downstream from the manifold.
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Cote, Pierre
Britton, Ahren
Hyslop, Rhonda Maria
Sathyanarayana, Ram Prasad Melahalli
Abrégé
A method for treating, and recovering phosphate compounds from, phosphate-containing wastewater. The method includes the steps of: (a) removing fluoride from the wastewater; (b) recovering a phosphate compound from the wastewater by maintaining super saturation conditions for the phosphate compound; and (c) polishing the wastewater. A silica removal step may be optionally performed after step (a) and before step (b).
OSTARA NUTRIENT RECOVERY TECHNOLOGIES INC. (Canada)
Inventeur(s)
Cote, Pierre
Britton, Ahren
Sathyanarayana, Ram, Prasad, Melahalli
Hyslop, Rhonda, Maria
Abrégé
A method for treating, and recovering phosphate compounds from, phosphate-containing wastewater. The method includes the steps of: (a) removing fluoride from the wastewater; (b) recovering a phosphate compound from the wastewater by maintaining super saturation conditions for the phosphate compound; and (c) polishing the wastewater. A silica removal step may be optionally performed after step (a) and before step (b).
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
A reactor for the production of fertilizer through the treatment of sewage in waste water treatment systems. Services for the production of fertilizer through the treatment of sewage in waste water treatment systems.
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
(Based on Use in Commerce) Sewage treatment plant, namely, plant for the treatment of sewage in waste water treatment systems and used for the production of fertilizer (Based on 44(e)) Treatment of sewage in waste water treatment systems and the recycling of sewage into fertilizer
40 - Traitement de matériaux; recyclage, purification de l'air et traitement de l'eau
Produits et services
(1) A reactor for the production of fertilizer through the treatment of sewage in waste water treatment systems. (1) The production of fertilizer through the treatment of sewage in waste water treatment systems.