| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a waste water recycling apparatus capable of reusing waste water, which can produce water with good quality, reusable for toilet, for garden watering in a quantity required at a low cost, require a small installation area, can be easily installed, and can be placed even in a region using a septic tank. SOLUTION: A waste water treatment apparatus comprises a foreign substance removing tank for removing foreign substances in inflow waste water, an activated sludge treatment tank for filtering waste water from the foreign substance removing tank with a separation membrane while aerobically treating the waste water with activated sludge, a storage tank for storing the treated water from the activated sludge treatment tank, a biomembrane treatment tank for aerobically treating the waste water from the foreign substance removing tank with microorganisms fixed on a contact material, a settling tank for precipitating the solid content in the treated water from the biomembrane treatment tank, and a sterilization tank for sterilizing the supernatant liquid from the settling tank. The treated water stored in the storage tank is recycled, and the waste water treated in the biomembrane treatment tank is discharged.</p> |
