abstract |
(57) [Summary] [Purpose] The wiring work with the power supply is not required when replacing the aluminum plate, and the power supply is used effectively. An electrolyzer 4 in which waste water is circulated, a pair of electrode plates 5a and 5b provided in the electrolyzer 4, and a plurality of aluminum plates 6 arranged between the pair of electrode plates 5a and 5b. , A solar cell 7 connected to the pair of electrode plates 5a, 5b. |