| 摘要 |
PURPOSE: A drainage treating device is provided to reduce residual chlorine without using a heat-decomposition tank and a cooler, and to reduce the size of the device. CONSTITUTION: A drainage treating device comprises a chlorine gas separating tank(8), a gas-liquid mixing tank(14), and an electrolysis tank(6) without a partition wall. The chlorine gas separating tank volatilizes residual chlorine as chlorine gas after treating drainage. The gas-liquid mixing tank dissolves the chlorine gas to a solution. The electrolysis tank without a partition wall electrolyzes the solution. |
