| 摘要 |
PURPOSE: A floatation plant with scum concentration function is provided to maintain dehydration efficiency by concentrating scum through a scum concentration part and maintaining the concentration of sludge in a sludge storage tank where concentrated scum and concentrated sludge are mixed. CONSTITUTION: A floatation plant with scum concentration function comprises a floatation tank (110), a skimmer, a scum concentration part, and a filtrate receipt space (190). The scum concentration part includes a rotatable drum screen (152), a drum screen rotating device, a scraper (158), and a guiding board (160). The drum screen receives scum from the skimmer and concentrates the scum by separating filtrate from the scum. The drum screen rotating device rotates the drum screen in the opposite direction to the rotation of the skimmer. The scraper scrapes concentrated scum from the surface of the drum screen. The guiding board guides and discharges the scraped concentrated scum to the bottom. |
