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公开(公告)号：EP2498891B1
公开(公告)日：2018-04-11
申请号：EP09752806.1
申请日：2009-11-11
发明人： LARSSON, Hans F.
CPC分类号： B01D24/46 , B01D24/007 , B01D24/30 , B01D24/4689
摘要： A method and a plant for the treatment of water or wastewater, having impurities therein by filtration through two granular media filter stages (1, 2) of the moving bed type operated in series, comprising: feeding of said water/wastewater as a first influent to first stage granular media filters; filtration of said first influent in said first stage granular media filters to produce a first effluent; feeding said first effluent as a second influent to second stage granular media filters; and filtration of said second influent in said second stage granular media filters to produce a second effluent; wherein said second stage granular media filters (2) are operated with intermittent washing of the granular filter media.
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公开(公告)号：EP2498891A1
公开(公告)日：2012-09-19
申请号：EP09752806.1
申请日：2009-11-11
发明人： LARSSON, Hans F.
CPC分类号： B01D24/46 , B01D24/007 , B01D24/30 , B01D24/4689
摘要： A method and a plant for the treatment of water or wastewater, having impurities therein by filtration through two granular media filter stages (1, 2) of the moving bed type operated in series, comprising: feeding of said water/wastewater as a first influent to first stage granular media filters; filtration of said first influent in said first stage granular media filters to produce a first effluent; feeding said first effluent as a second influent to second stage granular media filters; and filtration of said second influent in said second stage granular media filters to produce a second effluent; wherein said second stage granular media filters (2) are operated with intermittent washing of the granular filter media.
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