| abstract |
(57) [Summary] [Purpose] To provide a wastewater treatment device that can simultaneously treat high-concentration wastewater containing nitrogen-containing hardly decomposable chemical substances and surfactants and a small amount of exhaust gas, and that has a simple structure. . A first bioreactor 3 having a lower part K including an inflow pipe 6 into which water to be treated flows and an aeration means 7, and an upper part G filled with a vinylidene chloride filling material 8, a charcoal and a calcium carbonate filling material. And a filler portion R filled with A bioreactor and an exhaust gas introducing diffuser pipe 19 for introducing the exhaust gas generated from the uppermost part of the first bioreactor 3 into the filling part R are provided. [Effect] The lower part K anaerobically treats the water to be treated, and the upper part G aerobically treats the water to be treated and anaerobically. Then, the water to be treated is further aerobically treated in the second bioreactor and the exhaust gas from the first bioreactor 3 is aerobically treated. |