Abstract: A system and method for producing biogas (methane) from a mixture of poultry manure and methanogens through an anerobic digestion process which makes use of jute filters within the chamber to absorb excess ammonium nitrogen from the mixture of poultry manure.

Abstract: A method of enhancing nitrogen and phosphate fertilizer recovery and, particularly, to using sewage sludge and corn stover to enhance nitrogen and phosphate fertilizer recovery. The methods can further use ferric chloride as a catalyst to further enhance nitrogen recovery. The fertilizer can be produced by hydrothermally carbonizing a mixture including about 20% of sewage sludge and about 30% of corn stover.

Abstract: Methods and systems for scrubbing and removing hydrogen sulfide from a biogas. The methods and systems use a hydrogen sulfide removal media comprising biomass derived biochar, activated carbon, silica gel, and metal organic framework inside a tube through which the biogas passes to scrub the hydrogen sulfide from the biogas. The methods and systems are capable of achieving are about 95% reduction of hydrogen sulfide present in the biogas.

Abstract: A method of reducing salinity of saline soil, comprising providing a sawdust and corn stover-based biochar, contacting the sawdust and corn stover-based biochar with a saline soil, and adsorbing salts in the soil with the sawdust and corn stover-based biochar. The sawdust and corn stover-based biochar can be prepared by hydrothermally carbonizing a mixture including equal proportions of corn stover and sawdust.

Abstract: A high pressure, high temperature spray cooling system for heat transfer. The system includes: a supply tank having a heater and a high pressure pump; and a spray chamber spaced apart from the supply tank. The spray chamber has a workpiece receiving bed and a nozzle spaced apart from the workpiece receiving bed. The supply line has a first supply line end and a second supply line end. The first supply line end is connected to the supply tank and the second supply line end is connected to the nozzle so that the contents within the supply tank are supplied to the nozzle through the supply line at a high pressure to cool a workpiece on the workpiece receiving bed.

Abstract: An irrigation system is configured with a sprinkler module resting on at least two guide rails supported in a parallel arrangement by a plurality of legs, with the legs forming a rack used to provide a guideway for a sprinkler module along the guide rails, with the guide rails and cross supports arranged to form a plane. An adjustment is provided for positioning the plane of the guide rails and cross supports at tilt or angular adjustment of the plane to provide a selected alignment of the plane with a terrain location of the irrigation system. The sprinkler module is connectable to a water source capable of providing a water supply for discharge through the sprinkler modules; and at least one tracking wheel drive motor, such as a water powered drive motor or an electric motor, is provided for driving the sprinkler module along the guide rails.

Abstract: A method of chromium removal from wastewater comprising providing a copper augmented biochar and contacting the copper augmented biochar with the wastewater to remove chromium from the wastewater. The copper augmented biochar can remove chromium from wastewater with about 99% efficiency in about 1 hour.

Abstract: A method and system for enhancing methane generation in biogas production includes feeding cow manure and glucose into a semi-continuous stirring tank reactor. Incubating the cow manure and glucose to form waste activated sludge with methanogen growth. The methanogen growth is enhanced by surface areas of ferrous pebbles within the semi-continuous stirring tank reactor. Feeding rice husk and water into the semi-continuous stirring tank reactor. Mixing the rice husk, the water, and the formed waste activated sludge together to form a mixture. Initiating an anaerobic digestion process during the mixing to produce high volatile fatty acids. Increasing the production of the high volatile fatty acids to a higher level by enhancing adsorption of the methanogen microorganisms onto the ferrous pebbles. Reacting the higher level of the high volatile fatty acids with the ferrous pebbles to increase conversion of the higher level of volatile fatty acids to methane while producing biogas.

Abstract: The solar-powered system for generating steam and distilled water includes a first conduit having an inlet for receiving a feed stream of water and an outlet for dispensing heated water. The first conduit has at least one steam vent for releasing at least a first volume of steam. At least one evacuated tube collector is in fluid communication with the first conduit for solar heating of the feed stream of water to produce the heated water and the at least first volume of steam. At least one boiler is in fluid communication with the first conduit for receiving a portion of the heated water for boiling thereof to produce a second volume of steam. At least one photovoltaic panel is in electrical communication with the at least one boiler for providing power thereto, and a condenser receives the second volume of steam for condensation thereof into distilled water.