The invention is directed to a process for separating an aqueous feed comprising of dissolved ammonium bicarbonate. The process comprises: a step (a) in which an electrodialysis is performed to obtain a diluate and a concentrate comprising of ammonium bicarbonate and a step (b) in which the total ammonia nitrogen (TAN) as present in the concentrate is separated from the bicarbonate ions as present in the concentrate by means of a bipolar membrane electrodialysis to a total ammonia nitrogen (TAN) alkaline fraction and a bicarbonate acid fraction.

The invention is directed to a process for separating an aqueous feed comprising of dissolved ammonium bicarbonate. The process comprises: a step (a) in which an electrodialysis is performed to obtain a diluate and a concentrate comprising of ammonium bicarbonate and a step (b) in which the total ammonia nitrogen (TAN) as present in the concentrate is separated from the bicarbonate ions as present in the concentrate by means of a bipolar membrane electrodialysis to a total ammonia nitrogen (TAN) alkaline fraction and a bicarbonate acid fraction.

A device, system, and method for residue use in livestock farming, comprising a conveyor device for conveying animal excrement along a conveyor section, wherein the conveyor section has a larva-introducing portion for metering in larvae and/or larva eggs, an excrement-introducing portion for metering in animal excrement depending on one or more process parameters, and a larva-separating portion for separating the larvae, and methods for use thereof.

A device, system, and method for residue use in livestock farming, comprising a conveyor device for conveying animal excrement along a conveyor section, wherein the conveyor section has a larva-introducing portion for metering in larvae and/or larva eggs, an excrement-introducing portion for metering in animal excrement depending on one or more process parameters, and a larva-separating portion for separating the larvae, and methods for use thereof.

To produce fertilizer, a system and method concentrates manure slurry in a mechanical vapor recompression evaporator (MVR) having a heat exchanger. The MVR receives the manure slurry within a first side to evaporate ammonia laden-water vapor from the slurry, leaving a nutrient concentrate. A compressor raises the evaporated ammonia-laden water vapor to a higher energy state. Within a second side of the heat exchanger, the compressed water vapor conveys heat to the slurry. Ammonia-laden water condenses in the second side at a process temperature to be conveyed to an ammonia stripping tower where the ammonia-laden water is dispersed into ammonia-laden water droplets. In the tower, a flow of air is directed across a surface of the ammonia-laden water droplets, the process temperature having been selected to promote the escape of ammonia gas from the ammonia-laden water droplets, the flow of air provided to entrain ammonia gas in the flow.

To produce fertilizer, a system and method concentrates manure slurry in a mechanical vapor recompression evaporator (MVR) having a heat exchanger. The MVR receives the manure slurry within a first side to evaporate ammonia laden-water vapor from the slurry, leaving a nutrient concentrate. A compressor raises the evaporated ammonia-laden water vapor to a higher energy state. Within a second side of the heat exchanger, the compressed water vapor conveys heat to the slurry. Ammonia-laden water condenses in the second side at a process temperature to be conveyed to an ammonia stripping tower where the ammonia-laden water is dispersed into ammonia-laden water droplets. In the tower, a flow of air is directed across a surface of the ammonia-laden water droplets, the process temperature having been selected to promote the escape of ammonia gas from the ammonia-laden water droplets, the flow of air provided to entrain ammonia gas in the flow.

A biosolids treatment system that treats human biosolids to produce thermal energy for self-consumption for the production of beneficial use products including low carbon ash, high carbon activated biochar, and Class A biosolids. The system includes a variable feed conveyor that conveys a biosolid feed into a dryer; a dryer that dries the biosolid feed to a predetermined moisture content to create one of a beneficial use products, where the predetermined moisture content is controlled by varying the speed of variable feed conveyors and a variable feed mixer; and a gasifier that converts the biosolid feed into two of the beneficial use products.

A biosolids treatment system that treats human biosolids to produce thermal energy for self-consumption for the production of beneficial use products including low carbon ash, high carbon activated biochar, and Class A biosolids. The system includes a variable feed conveyor that conveys a biosolid feed into a dryer; a dryer that dries the biosolid feed to a predetermined moisture content to create one of a beneficial use products, where the predetermined moisture content is controlled by varying the speed of variable feed conveyors and a variable feed mixer; and a gasifier that converts the biosolid feed into two of the beneficial use products.

Disclosed are methods and systems for the conversion of poultry waste into useful products. Some embodiments are directed to a process for forming a product solution from poultry waste. The process includes providing a feedstock that contains greater than 60 percent poultry waste, and anaerobically digesting the feedstock to produce a digestate that has a solids content of about 5% to about 15% by weight. The process also includes separating and classifying the digestate into multiple high solids fractions and a first filtrate. The process also includes adding the high solids fractions to an acid solution to form a slurry that is then separated and classified into multiple second solids fractions and a second filtrate. The process also includes clarifying the first and second filtrates to produce a first and a second centrate. The process also includes mixing the first centrate with the second centrate to form the product solution.

Systems and methods for manufacturing an organic liquid fertilizer product are shown. The contemplated systems and methods are configured to treat waste from a natural source in order to produce the organic liquid fertilizer. The liquid organic waste may be derived from an organic source. The liquid organic waste may be pre-treated through an anaerobic digestion process, or it may be treated in a raw form. Advantageously, the systems and methods of the present disclosure may be used to manufacture the organic liquid fertilizer with a sufficiently high nitrogen content, which is usable by plants and crops. The systems and methods are likewise more efficient than known systems and methods to produce such fertilizer products.