ろ過か池ち

noun

filter basin; settling basin

A basin or tank used in water treatment or industrial processes for filtering or settling solids from liquids.

• 浄じょう水すい場じょうのろ過か池ちは定てい期き的てきに清せい掃そうが必ひつ要ようです。

  The filter basins at the water purification plant need regular cleaning.