| 摘要 |
PURPOSE:To efficiently recover solid components and to obtain a large treatment capacity by providing a wave consuming means to the inside of a rotary drum. CONSTITUTION:A wave consuming means such as wave consuming plates 36 is provided to the inside of a rotary type filter drum 14. Therefore raw water is introduced to the inside of the filter drum 14 fitted with a filter medium to the drum and the filter drum 14 is rotated. When the components of liquid are passed through the filter medium by means of the difference of liquid surfaces of the inside and outside of the filter drum 14 and solid components are trapped by the filter medium, the liquid surface of the inside of the filter drum 14 is made choppy with the rotation of the filter drum 14 but the above- mentioned wave consuming means 36 acts so that this wave is destroyed and thereby the solid components trapped by the filter medium are prevented from being washed down by wave. The solid components trapped by the filter medium reach the upper part thereof with the rotation of the filter drum 14 and are separated from the filter medium with a removal means provided to the position and discharged to the outside of the filter drum 14 as the recovered components.
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