发明授权
US5603840A Method of achieving microbiological control in open recirculating
cooling water
失效
在开放循环冷却水中实现微生物控制的方法
- 专利标题: Method of achieving microbiological control in open recirculating cooling water
- 专利标题(中): 在开放循环冷却水中实现微生物控制的方法
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申请号: US440790申请日: 1995-05-15
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公开(公告)号: US5603840A公开(公告)日: 1997-02-18
- 发明人: Richard J. Strittmatter , Narasimha M. Rao
- 申请人: Richard J. Strittmatter , Narasimha M. Rao
- 申请人地址: IL Naperville
- 专利权人: Nalco Chemical Company
- 当前专利权人: Nalco Chemical Company
- 当前专利权人地址: IL Naperville
- 主分类号: C02F1/00
- IPC分类号: C02F1/00 ; C02F1/76 ; C02F1/78
摘要:
The invention comprises adding bromide to a cooling water system containing corrosion and scale control treatment chemicals at elevated concentrations (40 ppm or greater). A fraction of the recirculating water is drawn off in a side stream and ozonated. Ozone oxidizes bromide to bromine which then serves as a biocide. The bromide levels are chosen such that the ozone/bromide reaction is preferred over the ozone/treatment chemicals reaction. Thus, the addition of bromide at elevated concentrations, while acting as a biocide precursor, serves to protect treatment chemicals necessary for corrosion and scale control.
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