Sewage treatment apparatus and sewage reuse system

摘要

The present patent aims to control a water storing quantity of reuse water which is stored by a sewage treatment apparatus (10) of a satellite treatment plant. The sewage treatment apparatus (10) of the present invention comprises: a membrane separation active-sludge treating section (30) which performs a biological treatment on a part of sewage, which is introduced by a water introducing section (14) while flowing through a sewer trunk line (12), to generate first treated sewage; a membrane highly treating section (40) which performs a membrane high treatment on said first treated sewage to generate second treated sewage; a membrane treating tank (50) which stores said first treated sewage; a membrane highly treating tank (60) which stores said second treated sewage; water level sensors (70) which respectively measure water level of said membrane treating tank (50) and said membrane highly treating tank (60); and a power-control section (80) which controls water introducing quantity of said water introducing section (14) on the basis of the water level data measured by said water level sensors (70).