发明名称 |
METHOD AND APPARATUS FOR IMPROVING WATER QUALITY |
摘要 |
<p>PROBLEM TO BE SOLVED: To enhance the water quality improving efficiency of a biological filter bed. SOLUTION: A container 2 having a living waste water finflow port 4 and an outflow port 2 is opened upwardly and the width 9 of the container 2 is formed so as to become small from the upper part thereof to the lower part thereof and a plurality of cylindrical biological filter beds 17 formed from a fibrous material are arranged in the container 2 in a tiered state and the arranging density of these biological filter beds 7 is made gradually small from an upper tier to a lower tier and the bottom 11 of the container 2 is inclined low from one end thereof to the other end thereof and a discharge pipe 21 discharging a deposit and a drain valve 22 are provided to the bottom 1 on the other end side.</p> |
申请公布号 |
JP2001157897(A) |
申请公布日期 |
2001.06.12 |
申请号 |
JP19990345304 |
申请日期 |
1999.12.03 |
申请人 |
BABCOCK HITACHI KK |
发明人 |
SATO KAZUNORI;MIZOGUCHI TADAAKI;KAJIYAMA YOSUKE;FUJITA KAZUNORI |
分类号 |
C02F3/06;(IPC1-7):C02F3/06 |
主分类号 |
C02F3/06 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|