| 摘要 |
<p>PURPOSE:To discharge a good quality treated water by purifying excrement by an activated sludge system through a mechanism wherein, by utilizing tank bodies of established purifying tanks, the said tank bodies are altered to an adjusting tank, an aeration tank, a precipitation tank and a disinfecting tank. CONSTITUTION:By utilizing a concrete tank body of an established purifying tank almost naturally, a spoilage tank is alterated to an adjusting tank 2, an oxidizing tank to an aeration tank 8, a disinfecting tank to a precipitation tank 20 and a disinfecting tank 26. Thereby, a sewage flowed into an adjusting tank 2 is aerated by the air supplied by a blower 11 or an aerator or the like to homogenize the sewage and flowed into an aeration tank 8 in a constant amount by a pump 12 and a pipe 13. Then, the said sewage is aerated and stirred by a blower 23 and an aerator 22 and, thereafter, flowed into a precipitation tank 20. A precipitated activated sludge 29 of a bottom is returned to an aeration tank 28 by a pump 24 and a pipe 25 as well as a clarified supernant is sent to a disinfecting tank 26 to obtain a treated water.</p> |
