High-concentration wastewater treatment device for treating pollutants with strong oxidizing power using plasma

A high-concentration wastewater treatment device, comprising:

• a discharge pin module including a support plate, multiple discharge pins coupled to the support plate, and pin connectors connected to the multiple discharge pins on the support plate and extending upwards;
• a discharge plate module spaced apart from the multiple discharge pins;
• and
• a circuit module including a main board, multiple distributed processing boards connected to the main board, a coupling unit which performs a function of connecting the multiple distributed processing boards, and discharge pin connection portions electrically connected to the distributed processing boards in a direction of a lower end of the main board,
• wherein the discharge plate module includes a connection pin connected to a lower end of the support plate and a discharge plate accommodation portion coupled to a lower end of the connection pin;
• and
• the discharge pin connection portions have, at their lower ends, coupling grooves into which the pin connectors are inserted, to allow one-touch coupling between the circuit module and the discharge pin module.