| CPC C02F 1/4608 (2013.01) [C02F 1/72 (2013.01); C02F 2201/004 (2013.01); C02F 2201/46175 (2013.01)] | 5 Claims |

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1. 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.
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