JPS5653741A - Heavy metal removing filter - Google Patents
Heavy metal removing filterInfo
- Publication number
- JPS5653741A JPS5653741A JP12883779A JP12883779A JPS5653741A JP S5653741 A JPS5653741 A JP S5653741A JP 12883779 A JP12883779 A JP 12883779A JP 12883779 A JP12883779 A JP 12883779A JP S5653741 A JPS5653741 A JP S5653741A
- Authority
- JP
- Japan
- Prior art keywords
- filter
- heavy metal
- metal removing
- active
- removing filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To obtain a heavy metal removing filter which consists in carrying active ferrite on fibrous materials and which can adsorb and remove heavy metal ions in waste water in particular at high rates.
CONSTITUTION: This invention comprises a heavy metal removing filter which consists in carrying about 5W40%, particularly 25W40% active ferrite on natural fibrouns material such as paper cotton, asbestos or the like. Said active ferrite is obtained by treating mixed solution of ferrous salt and ferric salt with an aqueous alkaline soln. in a pH8W9 range. The active filter of the heavy metal removing filter of present invention is stable at 2W12pH, and out of the adsorbed heavy metals, Cr2+ is desorbed when the filter is treated at 10W11pH and Pb2+, Cd2+, etc. are desorbed when the filter is treated at about 3pH. Hence, the filter may be easily regenerated and repeatedly reused by subjecting the untreated filter to regeneration treatment with an aqueous alkaline soln. followed by regeneration treatment with an aqueous acid soln.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12883779A JPS5653741A (en) | 1979-10-08 | 1979-10-08 | Heavy metal removing filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12883779A JPS5653741A (en) | 1979-10-08 | 1979-10-08 | Heavy metal removing filter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5653741A true JPS5653741A (en) | 1981-05-13 |
Family
ID=14994616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12883779A Pending JPS5653741A (en) | 1979-10-08 | 1979-10-08 | Heavy metal removing filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5653741A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6261690A (en) * | 1985-09-13 | 1987-03-18 | Hitachi Ltd | Method for separating metal ion |
KR20030073321A (en) * | 2002-03-11 | 2003-09-19 | 한국지질자원연구원 | Continuous treatment of wastewater with spent iron oxide catalyst |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4937942A (en) * | 1972-08-16 | 1974-04-09 | ||
JPS5019690A (en) * | 1973-06-23 | 1975-03-01 | ||
JPS5287860A (en) * | 1976-01-16 | 1977-07-22 | Mitsubishi Heavy Ind Ltd | Method of removing heavy metal ion in drainage |
-
1979
- 1979-10-08 JP JP12883779A patent/JPS5653741A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4937942A (en) * | 1972-08-16 | 1974-04-09 | ||
JPS5019690A (en) * | 1973-06-23 | 1975-03-01 | ||
JPS5287860A (en) * | 1976-01-16 | 1977-07-22 | Mitsubishi Heavy Ind Ltd | Method of removing heavy metal ion in drainage |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6261690A (en) * | 1985-09-13 | 1987-03-18 | Hitachi Ltd | Method for separating metal ion |
KR20030073321A (en) * | 2002-03-11 | 2003-09-19 | 한국지질자원연구원 | Continuous treatment of wastewater with spent iron oxide catalyst |
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