▎ 摘　　要

NOVELTY - Plasma-activated water production system (100) comprises a plasma reactor comprising a tubular body portion with internal walls defining an internal cavity. An electrically conductive capillary with an inlet capillary body extends between a fluid-receiving tip and a fluid-injecting tip. The fluid-receiving tip is positioned outside the internal cavity. The fluid-injecting tip is positioned inside the internal cavity. The electrically conductive outlet capillary has an outlet capillary body extending between a fluid-collecting tip and a fluid-ejecting tip, where the fluid-collecting tip is positioned inside the internal cavity. The fluid-ejecting tip is positioned outside the internal cavity. A power source supplies a voltage across the electrically conductive inlet capillary and the electrically conductive outlet capillary. USE - Plasma-activated water production system. ADVANTAGE - The plasma-activated water production system improves the rejection of nitrate through the addition of negative components such poly(sodium 4-styrenesulfate) to enhance negative electrostatic repulsion. The membrane allows nitrate to pass through to a layer with a biological matrix where the cells denitrify the nitrate. DETAILED DESCRIPTION - Plasma-activated water production system comprises a plasma reactor comprising a tubular body portion with internal walls defining an internal cavity. An electrically conductive capillary with an inlet capillary body extends between a fluid-receiving tip and a fluid-injecting tip. The fluid-receiving tip is positioned outside the internal cavity. The fluid-injecting tip is positioned inside the internal cavity. The electrically conductive outlet capillary has an outlet capillary body extending between a fluid-collecting tip and a fluid-ejecting tip, where the fluid-collecting tip is positioned inside the internal cavity. The fluid-ejecting tip is positioned outside the internal cavity. A power source supplies a voltage across the electrically conductive inlet capillary and the electrically conductive outlet capillary. The fluid injecting tip is disposed relative to the fluid collecting tip to propagate a plasma discharge along the flowing liquid film region between the electrically conductive inlet capillary and the electrically conductive outlet capillary. A membrane concentrator is provided with a plasma-activated water flow channel with a plasma-activated water inlet and plasma-activated water outlet, a dry gas inlet, and a humidified gas outlet. The plasma-activated water flow channel comprises an ion-selective membrane. The membrane concentrator receives liquid from the plasma reactor, where the plasma-activated water contacts the ion-selective membrane. The plasma-activated water in the plasma-activated water flow channel leaving the membrane concentrator has increased concentrations of nitrates, nitrites, and hydrogen peroxide. An INDEPENDENT CLAIM is included for a method for producing plasma activated water, which comprises providing a continuously flowing plasma reactor, injecting a mixture comprising liquid water and a gas into electrically-conductive inlet capillary tube, propagating a plasma discharge along the flowing liquid film region, dissociating the liquid water in the plasma discharge to form dissociation products, producing hydrogen peroxide and nitrogen oxides from the dissociation products, dissolving the hydrogen peroxide and the nitrogen oxides into the flowing liquid film region, and directing the plasma activated water containing the hydrogen peroxide and the nitrogen oxides to a membrane concentrator. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the plasma activated water production system with a membrane concentrator. 100Plasma-activated water production system 101Pump 102Deionized water 103Mixing zones 104Rotameter