| 摘要 |
PROBLEM TO BE SOLVED: To provide a sewage purification tank without making the outflow of sludge to a latter treatment tank, deteriorating a treatment performance by a shortened residence time in each treatment tank, incurring the increase of the cost of maintenance and management, and requiring an exclusive tank and a metering pump even if a large volume of drainage such as bath drainage is generated at a time. SOLUTION: In the sewage purification tank having an anaerobic treatment tank and an aerobic treatment tank installed at the downstream of the anaerobic treatment tank, the anaerobic treatment tank is provided with a first inflow port for being made to flow feces and urine therein, and the aerobic treatment tank is provided with a second inflow port for being made to flow the bath drainage therein. COPYRIGHT: (C)2006,JPO&NCIPI
|
