System and method for treatment of wastewater fluids

A system for treatment of a wastewater fluid comprising:

• a gas supply system configured to provide a process gas into the wastewater fluid;
• a pulsed electrical-power generator configured to generate high electrical voltage pulses;
• a reactor apparatus pneumatically coupled to the gas supply system, and electrically coupled to the pulsed electrical-power generator,
• wherein the reactor apparatus is configured to produce a plurality of gas microbubbles of the process gas injected into the wastewater fluid supplied into the reactor apparatus for the treatment, and to apply the high electrical voltage pulses generated by the pulsed electrical-power generator to said plurality of the microbubbles;
• the high electrical voltage pulses have energy sufficient to create a plasma glow discharge within the plurality of the microbubbles, and in an interface of the microbubbles with the wastewater fluid;
• wherein the reactor apparatus includes a housing comprising:
• a gas input plenum arranged at a lower portion of the housing and including a pneumatic inlet configured to receive the process gas from the gas supply system;
• a gas chamber arranged at an upper portion of the housing and including a pneumatic outlet for releasing reaction gas products collected at the gas chamber during the treatment of the wastewater fluid;
• a reaction chamber arranged between the gas input plenum and the gas chamber, the reaction chamber including:
• a hydraulic inlet for receiving a wastewater fluid;
• a hydraulic outlet for releasing the wastewater fluid from the reaction chamber after treatment;
• a supporting plate arranged at a bottom of the reaction chamber and separating the reaction chamber from the gas input plenum, the supporting plate configured to hold a plurality of tubular electrodes, each of the tubular electrodes including:
• a protruding portion that protrudes from the supporting plate and configured to provide a conductive or capacitive electrical coupling to the wastewater fluid treated in the reaction chamber, and
• a passing portion that passes through the supporting plate to provide pneumatic communication between the gas input plenum and the reaction chamber for supplying the reaction gas for production of said plurality of the microbubbles;
• and
• a grounded plate arranged at a top portion of the reaction chamber and separating the reaction chamber from the gas chamber, the grounded plate including a plurality of openings passing through the grounded plate towards the gas chamber to enable an excess gas mixture containing a chemically active gas released from the microbubbles reaching the grounded plate and other reaction gas products produced during the treatment to pass through the plurality of the openings and be collected in the gas chamber.