The ozone spray wand is a portable aqueous ozone generator that is adaptable to fit onto garden hoses, backpack sprayers or any other water supply source. The wand uses electrolytic cells to make ozone on-demand. An operator simply pulls the trigger and a solenoid valve starts delivering ozonated water. Embodiments use a rechargeable battery that allows it to operate for 1 hour between recharge cycles. The wand is rated for 500 hours of use which delivers 15,000 gallons of ozonated water.

Disclosed is an electrified membrane flow-cell reactor system and method for nitrogen wastewater treatment and upcycling towards ammonia nitrogen without external acid/base consumption. This electrified membrane flow-cell reactor includes a cathodic membrane module having a gas-permeable or gas-exchange membrane and a cathodic catalytic layer, an anode, and a semi-permeable membrane between the cathodic and anodic chamber. Three chambers in the flow-cell reactor include (i) a cathode chamber for nitrate reduction and upcycling towards NH.sub.3, (ii) a trap chamber for NH.sub.3 capture and storage, and (iii) an anode chamber for H.sup.+ production and protonation of gaseous NH.sub.3 to NH.sub.4.sup.+. The cathodic membrane and anode are connected to an electric power source to provide a stable cathodic potential and enable electrode reactions. This method will continuously treat nitrate-containing wastewater and achieve simultaneous electrochemical nitrate reduction from the wastewater and ammonia recovery as ammonium salts in the trap chamber.

A method and apparatus break down organic materials, typically contaminants, through oxidation. The method for the treatment of a volume of material, provides: a) introducing at least two electrodes into a location, the location containing the volume of material and the volume of material containing one or more species for treatment; b) providing connections between a voltage source and the at least two electrodes; c) applying a voltage of a first polarity to the connections for a first period of time, under the control of a voltage controller; d) applying a voltage of a second, reversed, polarity to the connections for a second period of time, under the control of the voltage controller; e) repeating steps c) and d) a plurality of times; preferably with steps c), d) and e) promoting oxidation of one or more of the one or more species for treatment.

Systems and methods for watercraft and marine propulsions systems having marine environment enhancement capabilities are disclosed.

A method includes providing raw water into a first filter assembly to remove solids from the raw water to form a filtrate, providing the filtrate from the first filter assembly into a second filter assembly to electrochemically remove ionics from the filtrate to form purified water, and providing the purified water to an electrolyzer to generate hydrogen by electrolyzing the purified water.

A novel cell for generating ozonated water, the cell comprises a nafion membrane separating a diamond coated anode, and a gold surfaced cathode enclosed within a cell housing with the catalyst side of the nafion membrane facing the cathode. The cell housing has a cathode housing portion and an anode housing portion separated by the membrane, each housing portion having ridges to enhance substantially even flow of fluid over the cathode and anode. The housing portions contain O-rings in grooves to prevent leaks, and alignment features to keep the electrodes aligned. The cathode and anode have an array of holes allowing fluid to penetrate to the surface of the niobium membrane. Input ports allow fluid to flow into the housing and over the anode and cathode and then out of the housing through outlet ports. The housing may also incorporate an integrated spectral photometer including a bubble trap.

An illustrative expendable or reconstructable ozone generator cartridge for an aqueous ozone delivery device, for example, for antimicrobial sanitizing and/or medical treatment, includes a housing for a water treatment manifold providing parallel and operably fixed water pathways through ozone generating cells coupled to the manifold, and optionally a data logging and authentication feature.

An illustrative expendable or reconstructable ozone generator cartridge for an aqueous ozone delivery device, for example, for antimicrobial sanitizing and/or medical treatment, includes a housing for a water ozonating manifold, at least one ozone generating cell coupled to the manifold, and optionally a data logging and authentication feature. Advantageously, a water inlet and aqueous ozone outlet of the ozone generator cartridge is pluggable into and unpluggable from a docking station of the aqueous ozone delivery device, for example, a hand or implement washing and sanitizing device or a medical treatment device.

A water treatment system is disclosed having an electrolytic cell for liberating hydrogen from a base solution. The base solution may be a solution of brine for generating sodium hypochlorite or potable water to be oxidized. The cell has first and second opposing electrode end plates held apart from each other by a pair of supports such that the supports enclose opposing sides of the end plates to form a cell chamber. One or more inner electrode plates are spaced apart from each other in the cell chamber in between the first and second electrode plates. The supports are configured to electrically isolate the first and second electrode plates and the inner electrode plates from each other. The first and second electrode plates are configured to receive opposite polarity charges that passively charge the inner electrode plates via conduction from the base solution to form a chemical reaction in the base solution as the base solution passes through the cell chamber.

A fluid delivery system illustratively includes a spout, at least one valve in fluid communication with the spout, and a disinfectant device, illustratively an antibacterial device, fluidly coupled to the spout. The faucet is configured to selectively flow water through the disinfectant device in response to a user input to the faucet. In another illustrative embodiment, the fluid delivery system includes an outer housing, a plurality of fluid devices supported by the outer housing, and an ozone generator fluidly coupled to the fluid devices.