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US 11,440,853 B2Granted
Systems, methods, and apparatus for increased wastewater effluent and biosolids quality
AssigneeDryLet LLC
InventorsM. Scott Conley, Mark Menendez
Life of this patent
Estimating the term…
Abstract
Methods of delivering microorganisms loaded onto an inorganic porous medium. Methods of treating wastewater to increase effluent and biosolids quality. Methods of reducing ammonia and denitrifying wastewater effluent. Methods of reducing phosphorous concentration in wastewater effluent. Composition of biosolids derived from wastewater treatment. Wastewater treatment assemblage for increasing wastewater effluent and biosolids quality.
Claims20
A method of continuously producing fertilizer or compost comprising:
- a) providing a microbial solution comprising at least one microbial species loaded onto or within an inorganic porous medium;
- b) providing a reaction vessel comprising an influent stream, an effluent stream, an aqueous phase, and a biosolids phase, wherein the biosolids phase comprises at least one nutrient source for the at least one microbial species;
- c) adding the microbial solution comprising the at least one microbial species loaded onto or within the inorganic porous medium to the reaction vessel;
- d) continuously separating the effluent stream into a treated aqueous phase and a treated biosolids phase;
- and
- e) dewatering the treated biosolids phase to produce the fertilizer or compost;
- wherein the inorganic porous medium is physically modified to permit sorption of nitrogen and/or phosphorous from the aqueous phase to (i) increase a nutrient concentration of the fertilizer or compost and (ii) decrease the amount of nitrogen and/or phosphorous in the aqueous phase, and wherein physically modifying the inorganic porous medium comprises roughening a surface of the inorganic porous medium or increasing porosity of the inorganic porous medium.
4 more elements
A method of continuously producing fertilizer or compost comprising:
- a) providing a microbial solution comprising at least one microbial species loaded onto or within an inorganic porous medium;
- b) providing a reaction vessel comprising an influent stream, an effluent stream, an aqueous phase, and a biosolids phase, wherein the biosolids phase comprises at least one nutrient source for the at least one microbial species;
- c) adding the microbial solution comprising the at least one microbial species loaded onto or within the inorganic porous medium to the reaction vessel;
- d) continuously separating the effluent stream into a treated aqueous phase and a treated biosolids phase;
- and
- e) dewatering the treated biosolids phase to produce the fertilizer or compost, wherein the inorganic porous medium is chemically modified by adding a chelating agent and/or a salt to the inorganic porous medium to lead to precipitation of compounds that preferentially bind ammonia and phosphorous.
3 more elements
Dependencies are inferred from the claim text.