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公开(公告)号：EP1369157A4
公开(公告)日：2004-12-08
申请号：EP02703956
申请日：2002-03-11
申请人： NGK INSULATORS LTD
发明人： NAKAYAMA YOSHIHIKO , MIYATA ATSUSHI
CPC分类号： B01D24/005 , B01D24/26 , B01D24/4621
摘要： The present invention relates to the raw water-filtering technical field, and is to provide a high speed filtering apparatus which can filter a great amount of raw water containing suspended substances (SS) at a high concentration at a high speed. Floating filter media 2, which are composed of a foamed polymer having an apparent density of 0.1 to 0.4 g/cm and a 50% compression hardness of not less than 0.1 MPa and have uneven shapes or cylindrical shapes with sizes of 4 to 10 mm, are charged into an up-flow type filtering tower 1. The raw water containing SS at a high concentration is filtered by passing it through the filtering tower 1 at a linear water-passing speed of 100 to 1000 m/day. While the floating filter media 2 are not compacted, a high SS-capturing percentage can be obtained. Back washing can be also effected at a high linear washing speed of 1.2 to 4.0 m/min.
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2.发明公开RAIN WATER TREATING DEVICE IN COMBINED SEWAGE, AND BACKWASHING METHOD THEREFOR 有权设备，用于混合水渠道和BACKWASH相关方法的雨水处理
公开(公告)号：EP1380330A4
公开(公告)日：2004-12-08
申请号：EP02714472
申请日：2002-04-04
申请人： NGK INSULATORS LTD
发明人： MIYATA ATSUSHI , NAKAYAMA YOSHIHIKO
CPC分类号： B01D24/005 , B01D24/263 , Y10S210/919 , Y10S210/92 , Y10S210/921
摘要： The present invention is aimed at treating rainwater in a combined sewer system, while enabling removal of a majority of pollution substances even if a large amount of entering rainwater. The invention relates to a rainwater-treating apparatus in a combined sewer system, said apparatus comprising a plurality of upward flow type high-speed filter vessels each having a layer of a floating filter medium, a common treated water vessel which is located at upper faces of said high-speed filter vessels and is adapted to collect treated water from the high-speed filter vessels, a used wash water vessel which collects used wash water from said high-speed filter vessels, a rainwater inflow channel for distributing the entering rainwater into upper portions of the high speed filter vessels, and rainwater inflow portions for flowing downwardly the rainwater distributed from the rainwater inflow channel under the respective floating filter media of the filter vessels.
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