| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique effective at improving water treatment performance in a water treatment apparatus including a solid-liquid separation part for carrying out solid-liquid separation of water to be treated and an anaerobic treatment part for carrying out anaerobic treatment of water subjected to solid-liquid separation in this solid-liquid separation part. SOLUTION: A water treatment mechanism 101a stored in a treatment tank body 101 is configured such that an impurity removing tank 110 for carrying out solid-liquid separation treatment of inflow water, an anaerobic filter bed tank 130 for carrying out anaerobic treatment of water subjected to solid-liquid separation in the impurity removing tank 110 and an aerobic treatment tank 150 for carrying out aerobic treatment of water subjected to anaerobic treatment in the anaerobic filter bed tank 130 are disposed in series for the flow of water treatment. Water subjected to solid-liquid separation in the impurity removing tank 110 is configured so as to pass through two anaerobic filter beds 133 and 136 in the anaerobic filter bed tank 130 in order to be treated with a plurality of steps of anaerobic treatment by an anaerobic filter medium C1 and also flow through filter medium top areas 135 and 137 between filled regions. COPYRIGHT: (C)2011,JPO&INPIT |
