公开(公告)号：EP0626932B1

公开(公告)日：2001-10-31

申请号：EP93902472.5

申请日：1993-01-28

申请人： THAMES WATER UTILITIES LIMITED

发明人： EADES, Andrew 75 Penyston Road ,  STEVENSON, David, Gordon Firstones Adbury Holt

IPC分类号： C02F1/24

CPC分类号： B03D1/1431 ,  B01D24/205 ,  B01D24/4631 ,  B01D36/00 ,  B01D2101/02 ,  B03D1/02 ,  B03D1/028 ,  B03D1/1412 ,  B03D1/24 ,  B03D1/245 ,  C02F1/24 ,  C02F1/5281 ,  C02F9/00

摘要： The invention relates to a liquid treatment method and apparatus for removing impurities from a liquid stream, comprising forming a zone of micro gas bubbles from a source (3) across substantially the whole surface area of a treatment vessel (12) which is situated above a filter bed (13), passing liquid to be treated into the vessel (12) above the inlet (3) for the air whereby the liquid passes in countercurrent mode through the air bubbles.