Abstract: A point of use irrigation water fertigation system utilizes plasma production of nitrogen-bearing species. Soluble nitrogen-bearing species are generated using an atmospheric air plasma treatment of an irrigation water supply. A plasma is generated by a tube having an air intake. A high frequency generator generates atmospheric plasma. The end of the tube is placed above the surface of the irrigation water supply and the plasma emanating from the tube generates nitrogen species in the water. The non-thermal plasma discharge efficiently produces highly reactive radicals and NOx species that have impact on water chemistry including inactivation of microorganisms with high efficacy and accelerated removal of persistent organic pollutants such as perfluorinated compounds (PFCs) from water samples. Plasma ignition can be initiated with a low flow of helium gas injection. Upon ignition, the gas is transitioned to a helium/room air mix, immediately followed by a transition to ambient room air only.

Abstract: A point of use irrigation water fertigation system utilizes plasma production of nitrogen-bearing species. Soluble nitrogen-bearing species are generated using an atmospheric air plasma treatment of an irrigation water supply. A plasma is generated by a tube having an air intake. A high frequency generator generates atmospheric plasma. The end of the tube is placed above the surface of the irrigation water supply and the plasma emanating from the tube generates nitrogen species in the water. The non-thermal plasma discharge efficiently produces highly reactive radicals and NOx species that have impact on water chemistry including inactivation of microorganisms with high efficacy and accelerated removal of persistent organic pollutants such as perfluorinated compounds (PFCs) from water samples. Plasma ignition can be initiated with a low flow of helium gas injection. Upon ignition, the gas is transitioned to a helium/room air mix, immediately followed by a transition to ambient room air only.