| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent clogging of a filter by a foreign substance of a filtering body positioned in an upper part in particular, to secure the capacity of filtering the treat water as much as possible, and to improve the filtering efficiency. <P>SOLUTION: The plural filtering bodies 10 arranged on a base 1, inclined so as to position a distal end 13 below a base end 14 so that the treat water flows down, having the net-like filter 16 filtering the treat water flowing down a bottom surface 15, and having a discharge port 17 discharging the treat water that has flown down to the distal end 13 side as the wastewater are provided, the plural filtering bodies 10 are disposed so as to vertically depart from each other so as to receive the treat water passing through the filter 16 of the each filtering body 10 sequentially and are arranged so that the inclination angle gradually reduces from an uppermost filtering body 10a in order, the mesh of the filter 16 of the each filtering body 10 is made finer from the uppermost filtering body 10a in order, the treat water is fed to the uppermost filtering body 10a by a treat water feeding unit 20, and the water having passed through a lowermost filtering body 10b is taken out as the filtrate water. <P>COPYRIGHT: (C)2012,JPO&INPIT |
