Patents Assigned to Synagro Technologies, Inc.
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Patent number: 9573854Abstract: A dry, flowable fertilizer is provided that includes multiple dry, flowable biosolids pellets. Each of the pellets has a pellet surface. Potassium salt grains are adhered to the pellet surfaces and a dust control agent coating is applied to retain the grains on the pellet surfaces. The resultant dry, flowable fertilizer has higher potassium loadings to the potassium salt grains than previous biosolids based fertilizers. A process of forming a fertilizer is also provided that includes tumbling dry, flowable biosolids pellets with powdered potassium salt grains to form a mixture. An aqueous spray is added to adhere the salt grains to the pellet surfaces. With the application of a dust control agent, the salt grains are retained. Potassium levels in NPK units of from 1 to 15 are routinely achieved with greater than 90 elemental % of the potassium is from the surface decorating potassium salt grains.Type: GrantFiled: December 26, 2013Date of Patent: February 21, 2017Assignees: The Andersons, Inc., Synagro Technologies, Inc.Inventors: Larry Culp, Joseph David Hodges, Kenneth L. Wetherington, Terry Lee Wiseman
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Publication number: 20140106970Abstract: A dry, flowable fertilizer is provided that includes multiple dry, flowable biosolids pellets. Each of the pellets has a pellet surface. Potassium salt grains are adhered to the pellet surfaces and a dust control agent coating is applied to retain the grains on the pellet surfaces. The resultant dry, flowable fertilizer has higher potassium loadings to the potassium salt grains than previous biosolids based fertilizers. A process of forming a fertilizer is also provided that includes tumbling dry, flowable biosolids pellets with powdered potassium salt grains to form a mixture. An aqueous spray is added to adhere the salt grains to the pellet surfaces. With the application of a dust control agent, the salt grains are retained. Potassium levels in NPK units of from 1 to 15 are routinely achieved with greater than 90 elemental % of the potassium is from the surface decorating potassium salt grains.Type: ApplicationFiled: December 26, 2013Publication date: April 17, 2014Applicants: The Andersons, Inc., Synagro Technologies, Inc.Inventors: Larry Culp, Joseph David Hodges, Kenneth L. Wetherington, Terry Lee Wiseman
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Patent number: 8617285Abstract: A dry, flowable fertilizer is provided that includes multiple dry, flowable biosolids pellets. Each of the pellets has a pellet surface. Potassium salt grains are adhered to the pellet surfaces and a dust control agent coating is applied to retain the grains on the pellet surfaces. The resultant dry, flowable fertilizer has higher potassium loadings to the potassium salt grains than previous biosolids based fertilizers. A process of forming a fertilizer is also provided that includes tumbling dry, flowable biosolids pellets with powdered potassium salt grains to form a mixture. An aqueous spray is added to adhere the salt grains to the pellet surfaces. With the application of a dust control agent, the salt grains are retained. Potassium levels in NPK units of from 1 to 15 are routinely achieved with greater than 90 elemental % of the potassium is from the surface decorating potassium salt grains.Type: GrantFiled: October 6, 2010Date of Patent: December 31, 2013Assignees: Synagro Technologies, Inc., The Andersons, Inc.Inventors: Larry Culp, Joseph David Hodges, Kenneth L. Wetherington, Jr., Terry Lee Wiseman
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Publication number: 20110079063Abstract: A dry, flowable fertilizer is provided that includes multiple dry, flowable biosolids pellets. Each of the pellets has a pellet surface. Potassium salt grains are adhered to the pellet surfaces and a dust control agent coating is applied to retain the grains on the pellet surfaces. The resultant dry, flowable fertilizer has higher potassium loadings to the potassium salt grains than previous biosolids based fertilizers. A process of forming a fertilizer is also provided that includes tumbling dry, flowable biosolids pellets with powdered potassium salt grains to form a mixture. An aqueous spray is added to adhere the salt grains to the pellet surfaces. With the application of a dust control agent, the salt grains are retained. Potassium levels in NPK units of from 1 to 15 are routinely achieved with greater than 90 elemental % of the potassium is from the surface decorating potassium salt grains.Type: ApplicationFiled: October 6, 2010Publication date: April 7, 2011Applicants: Synagro Technologies, Inc., The Andersons, Inc.Inventors: Larry Culp, Joseph David Hodges, Kenneth L. Wetherington, JR., Terry Lee Wiseman
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Patent number: 6469526Abstract: The present invention provides a system to detect conductive contaminants interspersed within unconsolidated materials. By using the system described herein, voluminous amounts of unconsolidated materials such as soils, waste streams, hay, and similar non-conductive materials may be processed such that conductive contaminants, namely metal objects, may be identified and removed from the processed material. In general, the present invention utilizes the conductive property of these contaminants to alert the system such that the contaminant may be removed. By passing the unconsolidated materials across an arrangement of different contacts placed in close proximity, metal or similar conductive contaminants will complete an electrical circuit that signals a sensor within the circuit and initiates a partial shut down procedure.Type: GrantFiled: April 12, 2000Date of Patent: October 22, 2002Assignee: Synagro Technologies, Inc.Inventor: Marshall R. Franklin