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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0918695 (1992-07-27) |
발명자 / 주소 |
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인용정보 | 피인용 횟수 : 9 인용 특허 : 0 |
A drinking water filter for removing lead at point-of-use composed of specially treated gamma alumina particles between 48 and 100 mesh (0.148-0.297 mm), gamma alumina neutral (about 7 surface pH) or basic (about 9 surface pH) is washed in highly purified H2O at 100°C. to reduce alumima surface pH t
In a process for removing lead and other heavy metals and chlorines from drinking water at a desired treatment location, wherein the lead content of the drinking water is reduced to less than about 5 micrograms per liter, and the chlorine content is reduced to less than 0.1 ppm, filtering water cont
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