| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an apparatus for treating organic wastewater with more sufficient treatment efficiency. <P>SOLUTION: The apparatus is equipped with an aerobic treatment tank 1 for applying an aerobic treatment to the organic wastewater, and a biological filtration tank 2 for biologically filtrating the treated water from the aerobic treatment tank 1. In the biological filtration tank 2, a carrier charged part 3 filled with a carrier capable of carrying microorganisms is charged is provided, and further an air diffuser 4 for diffusing air into the carrier charged part 3 is provided. An inflow part 6 where the treated water from the aerobic treatment tank 1 flows in is arranged above the carrier charged part 3, and a discharge part 7 for discharging the treated water having passed through the carrier charged part 3 is arranged below the carrier charged part 3. The biological filtration tank 2 is formed of an airtight container 19, a push-in pump P for pushing the treated water into the inflow part 6 is provided, a ventilation channel 8 for exhausting gas in the tank outside is connected with an upper part of the airtight container 19, and further a throttle valve V is provided in the ventilation channel 8. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
