Method and apparatus for a low maintenance, high reliability on-site electrolytic generator incorporating automatic cell monitoring for contaminant film buildup, as well as automatically removing or cleaning the contaminant film. This method and apparatus preferably does not require human intervention to clean. For high current density cells, cleaning is preferably performed by reversing the polarity of the electrodes and applying a lower current density to the electrodes, preferably by adjusting the salinity or brine concentration of the electrolyte while keeping the voltage constant. Electrolyte flow preferably comprises water and brine flows which are preferably separately monitored and automatically adjusted. For bipolar cells, flow between modules arranged in parallel is preferably approximately equally distributed between modules and between intermediate electrodes within each module.

A wastewater treatment system comprises an actinic radiation reactor and a concentric tube electrode electrochemical cell in fluid communication between a source of electrolyte and the actinic radiation reactor. The electrochemical cell is configured to produce a chlorinated effluent including sodium hypochlorite. A conduit fluidically couples an outlet of the electrochemical cell to an inlet of the actinic radiation reactor and is configured to deliver the chlorinated effluent into the actinic radiation reactor.

The present invention relates to a portable hydrogen water mist sprayer comprising a water container which has an open-top coupling part protruding from the top center, a central case, the bottom of which becomes coupled to the top of the water container, and a top cap that becomes coupled to the top of the central case, and wherein an enclosed installation frame placed in the bottom of the central case and the bottom of the central case, which becomes coupled and fixed to the bottom of the central case, are coupled to the open-top coupling part of the water container for airtightness, and an airtightness frame that has a discharge guide groove and a discharge guide hole to selectively release the gas from hydrogen water production inside the water container is applied so that, in case the internal pressure of the water container exceeds a certain level, the gas from inside the water container can flow through the enclosed installation frame and airtightness frame and be discharged outside via the discharge guide groove and discharge guide hole. Accordingly, in case the internal pressure of the water container exceeds a certain level, infiltration of gas containing hydrogen components and/or water molecules into the electrical components involved in hydrogen production, such as the control unit, can be prevented, and the gas is discharged outside so as to substantially improve the safety and durability of the mist spraying device.

An illustrative aqueous ozone sanitizing system for body part, tissue, and instrument sanitizing, including hand rinsing and sanitizing includes a sanitizing chamber, spray devices configured to simultaneously irrigate the entire left and right hand of a user, at least two aqueous ozone generators each fluidly coupled to a subset of the spray devices, and a housing for the sanitizing chamber having an opening for guiding the user's hand orientation and position into the sanitizing chamber.

An illustrative aqueous ozone delivery device for use with an aqueous ozone generator cartridge can be used for body part, tissue, and instrument sanitizing, including hand rinsing, hand sanitizing, and clinical treatment. One embodiment includes a hooded sanitizing chamber and spray devices directed to each hand of a user, a docketing station for pluggably receiving a replaceable ozone generator and sensor cartridge, and a controller for sensing hand position and orientation, delivering a desired ozone concentration and duration.

A high-output tap water softening electrolyzer device, housed in a non-metal casing and configured for low internal pressure buildup and a method of using the same are provided herein, wherein the casing and the lid of the device are made essentially from a polymeric material rather than a metal.

The present disclosure relates to a biocide-generating device for outputting a biocide to a water system. The biocide-generating device includes a housing having a water inlet for receiving water from the water system and a water outlet for outputting water containing biocide to the water system. The biocide-generating device also includes an electrode arrangement having first and second electrodes positioned in the housing for generating biocide in the water within the housing, and an electrical power circuit for establishing a flow of electrical current between first and second electrodes of the electrode arrangement for generating the biocide in the water within the first chamber electrolytic cell. Features for enhancing heat transfer, sealing and electrical isolation are incorporated into the biocide-generating device.

Selected freshwater or saltwater aquaculture systems are processed for the automatic removal of waste, ammonia, and pathogens while controlling temperature, oxygen, and feed amounts for obtaining maximum growth and survival at maximum aquatic species densities. A core platform treatment technology removes ammonia by combining chlorine with the ammonia to form chloramines, which are removed by catalytic activated carbon at a downstream filter station. Processing also removes potential pathogens by sterilizing and electrifying the water. The technology utilizes ammonia, chlorine, oxidation-reduction potential (ORP), and flow sensors to electronically adjust the amount of chlorine needed to remove the existing ammonia. A control system utilizes temperature, dissolved oxygen, and image processing sensors to optimize heating, cooling, feeding, and aeration.

Disclosed is a water softening system includes a first and a second filter unit that selectively performs any one of a removable mode discharging soft water including less ionic material than a source water, and a recycling mode of discharging reclaimed water including more ionic material than the source water, a first and a second supply passage that supplies the source water to the first and the second filter unit, a first and a second discharge passage that discharges the soft water or the reclaimed water from the first and the second filter unit, a first recovery passage part that guides at least a portion of the reclaimed water in the first discharge passage to the second supply passage, and a second recovery passage part that guides at least a portion of the reclaimed water in the second discharge passage to the first supply passage.

Apparatus and method for electrolysis of urea is capable of removing urea from waste-water generated by human urine or agricultural run-off while simultaneously producing cleaner water and hydrogen gas. The apparatus and method employ at least one water reduction electrode located close to at least one urea oxidation electrode. The water reduction electrode operates to generate a locally high pH such that the urea oxidation electrode operates in a locally high pH envelope where it can perform its reaction efficiently to break down the urea with little or no impact on the pH of the bulk solution.