发明授权
- 专利标题: Water treatment process
- 专利标题(中): 水处理工艺
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申请号: US99351申请日: 1998-06-18
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公开(公告)号: US06059974A公开(公告)日: 2000-05-09
- 发明人: Clarence Scheurman, III
- 申请人: Clarence Scheurman, III
- 申请人地址: OH Avon Lake
- 专利权人: Applied Specialties, Inc.
- 当前专利权人: Applied Specialties, Inc.
- 当前专利权人地址: OH Avon Lake
- 主分类号: B01J49/00
- IPC分类号: B01J49/00 ; C02F1/42 ; C02F1/66 ; C02F5/02
摘要:
An improved water softening process is provided which also reduces anion content. A first stream of water is passed through an anion-exchange unit to remove undesirable anions and raise the pH. The first stream of water is then provided to reactor/clarifier water softening equipment, where it acts as a source of hydroxyl ions. Preferably a second stream of water which did not pass through an anion-exchange unit is also provided to the water softening equipment. The streams of water are combined and processed through the softening equipment, where hardness ions are precipitated out, yielding softened water with reduced anion content. The anion-exchange system utilized preferably has a counter-current continuous resin train and a counter-current continuous resin regeneration unit.
公开/授权文献
- USD423708S Outdoor light fixture 公开/授权日:2000-04-25
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