A submerged plasma generator includes: a reactor inside of which a flow path, through which a working fluid passes, is formed along a lengthwise direction; and a dielectric insert which is disposed in the flow path so as to define the flow path into one space and the other space, and has formed therein a through-hole to generate micro-nano bubbles by cavitation in the working fluid fed into the one space of the flow path, and includes, a metallic catalyst which undergoes friction with the working fluid flowing through the through-hole and releases electric charges of the same polarity to the micro-nano bubbles to collapse the micro-nano bubbles and generate plasma; in which the other space of the flow path in which the working fluid ionized by exposure to the plasma travels is formed in an oval structure.

A method and apparatus for producing hydrogen gas whereby a nanobubble generator introduces nanobubbles at a concentration of at least 10.sup.7 nanobubbles per cm.sup.3 into an electrolytic cell comprising a pair of electrodes and a hydrogen-containing, electrolyzable liquid, and the electrolytic cell is operated to produce hydrogen gas.

A water treatment system is configured to remove salt from a feed brine. The water treatment system includes a primary freezing chamber configured to receive the feed brine and a source of cooled intermediate cold liquid connected to the primary freezing chamber. The cooled intermediate cold liquid and feed brine are mixed within the primary freezing chamber, where ice particles are formed. The water treatment system includes a rotary separator connected to a discharge from the primary freezing chamber. The rotary separator is configured to separate solid ice particles from liquid components in the discharge from the primary freezing chamber. In some embodiments, the rotary separator includes a mesh inner filter tube that is configured for rotation within a solid outer filter tube, where the mesh inner filter tube allows liquid components to drain into the outer filter tube while conveying solid ice particles to an ice recovery tank.

A hardware (e.g., a process and/or circuitry) and/or software-based controller for septic system grinder or chopper units monitors load to the unit. As the unit encounters debris, electrical and mechanical load on the unit increases. In some cases, a signal to stop the unit from grinding/chopping (including but not limited to a signal based a waste-water level) is received while the unit is under the increased load. The controller may override the stop signal and continue sending power to the unit to clear the unit from debris causing increased load. The override may cease when it is determined that the debris has been cleared, such as when it is determined that the increased mechanical and/or electrical load on the unit has decreased or returned to a target load, allowing the unit to stop. The unit may include self-configuration functionality, determining thresholds for signaling override, target load, etc.

A facility-based domestic wastewater treatment system equipped with modified toilets and a hypochlorous acid machine, neutralizing coliform bacteria from bodily excretions at the source. The treated batch content in the toilet is flushed to a secondary process tank equipped with a grinding pump, hypochlorous acid dispensing nozzles and solenoid valves. Toilet and other facility utilities wastewater are treated and discharged to a filtration system to be separated. The filtration system is capable of separating bacteria and other particulates up to or equal to a fineness of 0.01 microns. Separate storage tanks are used to store recovered and reclaimed water in conjunction with a slurry waste collection tank for solid waste disposal. A facility-based wastewater reclamation system utilizing Reverse Osmosis process to remove unwanted contaminants and dissolved solids producing potable water, some of which is further processed with UV, and Ozone treatment to be used as drinking and cooking water.

An automated produced water treatment system that injects ozone or an ozone-oxygen mixture upstream of produced water separators, with the dose rate changing dynamically as the produced water quality changes, as determined by continuous monitoring of the produced water quality by a plurality of sensors that detect water quality parameters in real time. The system may operate as a “slipstream” injection system, that draws a portion of produced water from the produced water pipeline and injects ozone or an ozone-oxygen mixture back into the pipeline with disrupting or slowing normal operations. Disinfectants or other additives may also be injected. The treatment system may be wholly or partially contained in mobile containers or trailers, for on-the-fly use in existing produced water treatment facilities.

A method and system for water body algae control are provided. The method for water body algae control may include the steps of: withdrawing water from the water body; infusing a gas containing oxygen and/or ozone into the withdrawn water by generating nanobubbles of the gas within the water; and returning the infused water into the water body. The water body algae control system may include a nanobubble generator that may be configured to receive water that is withdrawn from a water body. An oxygen concentrator and an air compressor may be configured to provide a gas containing oxygen to the nanobubble generator and/or to an ozone generator, in which the nanobubble generator is configured to disperse nanobubbles of the gas containing oxygen and/or ozone into the water, and in which the nanobubble containing water is then directed back into the water body.

Methods and systems are provided for processing PFAS-contaminated waste via thermomechanochemical (TMC) processing. In one example, a system may include a TMC processing chamber including a milling system and coupled to a heating system, the heating system configured to co-operate with the milling system to process the waste material. A plurality of containers including the waste material in one or more of a liquid-solid state, a semi-wet or slurry solid state, and a dry solid state are coupled to the TMC chamber.

A gasification system according to an aspect includes a scrubber device to transfer contaminant contained in a flammable gas to cleaning water and discharge the cleaning water containing the contaminant as scrubber wastewater, a heat exchange device to heat the scrubber wastewater to vaporize the contaminant contained in the scrubber wastewater; and a combustion furnace to incinerate the vaporized contaminant, wherein the heat exchange device heats the scrubber wastewater by using heat generated by the combustion furnace.

A system for recovering fat, oil and grease (FOG) from wastewater has multiple annular flotation zones in a concentric configuration surrounding a central column to create progressively increasing surface areas for FOG and solid particles flotation, and thereby enhance FOG recovery and removal. Each flotation zone is equipped with an independent pressurized micro air and ozone bubbles distribution system. A controlled amount of ozone can be injected into the wastewater along with recirculated effluent and micro-size air bubbles. Upon the release of pressurized air-ozone-water mixture, micro-size bubbles are generated and distributed in each flotation zone to effectively float up FOG and solid particles in the wastewater stream.