This invention is directed to systems, devices and methods for modifying the process of producing dried biosolids pellets or granules into beneficiated inorganically-augmented bioorganic fertilizer. The present invention describes a method to beneficiate heat-dried biosolids or sludge pellets or gra
This invention is directed to systems, devices and methods for modifying the process of producing dried biosolids pellets or granules into beneficiated inorganically-augmented bioorganic fertilizer. The present invention describes a method to beneficiate heat-dried biosolids or sludge pellets or granules as presently manufactured by municipalities or companies from a) dewatered municipal wastewater biosolids or sludges within the municipal wastewater treatment plant heat-dried biosolids production facility or from b) finished dry heat dried biosolids pellets or granules in a separate manufacturing facility from the municipal wastewater treatment plant to produce a fertilizer containing sufficient organic and inorganic plant nutrients to be valuable and saleable into the commercial agricultural industry. The present invention describes beneficiation methods to increase the plant nutrient content to a level which permits the finished beneficiated dried biosolids pellet or granule product to compete in the commercial agricultural fertilizer marketplace and also to reduce the odors associated with traditionally-produced heat dried biosolids.
대표청구항▼
1. An inorganically-augmented bioorganic fertilizer, comprising: one or more organic materials; anda plant nutrient mixture incorporated into the organic materials, the plant nutrient mixture comprising at least one oxidant in an effective amount to control odor, at least one acid in an effective am
1. An inorganically-augmented bioorganic fertilizer, comprising: one or more organic materials; anda plant nutrient mixture incorporated into the organic materials, the plant nutrient mixture comprising at least one oxidant in an effective amount to control odor, at least one acid in an effective amount to inactivate bioactive substances present in the organic materials, between 8% and 22% by weight nitrogen, and one or more of calcium, phosphorous, potassium, sulfur, or iron. 2. The fertilizer of claim 1, wherein the one or more organic materials comprise dried biosolids or dewatered wastewater biosolids from municipal wastewater treatment plants. 3. The fertilizer of claim 1, wherein the pH of the fertilizer is between 4.5 and 7.0. 4. The fertilizer of claim 1, wherein the fertilizer is shaped into one of a granule, a pellet, a tablet, or a powder. 5. The fertilizer of claim 4, wherein the fertilizer is between 0.7 mm and 3.2 mm in size, and is coated with an effective amount of a binding material to reduce dust formation. 6. The fertilizer of claim 4, wherein the fertilizer has an agricultural grade hardness of between 4 and 10 pounds. 7. The fertilizer of claim 1 wherein the concentration of one or more of calcium, nitrogen, phosphorous, iron, or potassium in the fertilizer is greater than the respective concentration of calcium, nitrogen, phosphorus, iron, or potassium in an all-organic biosolid fertilizer. 8. The fertilizer of claim 1, wherein the phosphorous content is from 0% to 14% by weight, and the iron content is from 0% to 2% by weight. 9. The fertilizer of claim 1, wherein the potassium content is from 0% to 8% by weight. 10. The fertilizer of claim 1, wherein the water-holding capacity of the fertilizer is greater than the water holding capacity of an all-synthetic fertilizer. 11. The fertilizer of claim 1, wherein the oxidant is at least one of calcium ferrate, sodium ferrate, potassium ferrate, iron sulfate, phosphoric acid, ammonia, hydrogen peroxide, ozone, or chlorine dioxide, or a combination thereof. 12. The fertilizer of claim 1, wherein the pH is between 5.5 and 6.2. 13. The fertilizer of claim 1, wherein the acid is phosphoric, sulfuric, or both. 14. The fertilizer of claim 1, wherein the plant nutrient mixture is further comprised of at least one of concentrated phosphoric acid, concentrated sulfuric acid, anhydrous ammonia, aqueous ammonia, ammonium hydroxide, ammonium sulfate, ammonium monophosphate, ammonium diphosphate, urea, methylene urea, sulfur-coated urea, potassium hydroxide, potash, calcium hydroxide, calcium oxide, attapulgite clay, terric oxide, ferric sulfate, magnesium oxide, magnesium sulfate, cement kiln dust, lime kiln dust, fly ash, or wood ash, or a combination thereof. 15. The fertilizer of claim 1, further comprising a granulating agent. 16. The fertilizer of claim 15, wherein the granulating agent is lignon. 17. The fertilizer of claim 1, wherein the fertilizer is a slow-release fertilizer providing nutrients throughout the growth cycle of a plant. 18. An inorganically-augmented, bioorganic fertilizer with substantially reduced or no bioorganic odor, comprising: one or more organic materials containing inactivated bioactive substances;a binding or granulating agent mixed into the one or more organic materials; anda nutrient mixture incorporated into the one or more organic materials, the nutrient mixture comprised of 8-22% nitrogen, 0-14% phosphorous, 0-8% potassium, and 0-2% iron.
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