发明授权
- 专利标题： Device for purifying sewage
- 专利标题（中）： 污水净化设备
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申请号： US557351申请日： 1975-03-11
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公开(公告)号： US3980561A公开(公告)日： 1976-09-14
- 发明人: Toru Miyagi , Nobuyoshi Katakai , Masanori Narita , Tatsuya Uchida , Minondo Kimura
- 申请人： Toru Miyagi , Nobuyoshi Katakai , Masanori Narita , Tatsuya Uchida , Minondo Kimura
- 申请人地址： JA Tokyo
- 专利权人： Hitachi Chemical Company, Ltd.
- 当前专利权人： Hitachi Chemical Company, Ltd.
- 当前专利权人地址： JA Tokyo
- 优先权： JA49-28410 19740312
- 主分类号： C02F3/06
- IPC分类号： C02F3/06 ; C02F3/04 ; C02F3/20 ; C02C1/04
摘要：
A device for purifying sewage by employing a bed of aerobes or activated sludge characterized by the use of a movable air supply means which is moved across the bottom portion of the bed to apply a concentrated supply of air to a limited portion of the bed to effect air washing of the bed and also applies the air washing to the entire bed in a predetermined period of time.
公开/授权文献
- US5586107A Multiple data surface optical data storage system 公开/授权日：1996-12-17
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