JPS55104693A - Filter medium for waste water treatment apparatus - Google Patents
Filter medium for waste water treatment apparatusInfo
- Publication number
- JPS55104693A JPS55104693A JP1203679A JP1203679A JPS55104693A JP S55104693 A JPS55104693 A JP S55104693A JP 1203679 A JP1203679 A JP 1203679A JP 1203679 A JP1203679 A JP 1203679A JP S55104693 A JPS55104693 A JP S55104693A
- Authority
- JP
- Japan
- Prior art keywords
- filter medium
- waste water
- water treatment
- inorganic salt
- uneven pattern
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1638—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate
- B01D39/1653—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin
- B01D39/1661—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being particulate of synthetic origin sintered or bonded
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biological Treatment Of Waste Water (AREA)
- Filtering Materials (AREA)
Abstract
PURPOSE:To raise the waste water treatment performance of filter medium consisting of a synthetic resin and a soluble inorganic salt by making the emerging of uneven pattern on the surface of the filter medium possible so as to better the adhesion of microorganisms to the medium. CONSTITUTION:A synthetic resin, e.g., polyvinyl chloride, polyethylene, polyurethane, polypropylene, etc., is mixed with a soluble inorganic salt, e.g., sodium chloride, calcium chloride, magnesium chloride, magnesium sulfate, etc., and then the mixture is molded into a shape applicable to a filter medium. When the filter medium thus molded is used as the filter bed for waste water treatment apparatus, the soluble inorganic salt present in the filter medium is gradually eluted into waste water during the treatment period to form a clear uneven pattern on the surface of the filter medium, so that the manufacture of the filter medium is made easier without the necessary for carving uneven pattern in mold.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1203679A JPS55104693A (en) | 1979-02-05 | 1979-02-05 | Filter medium for waste water treatment apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1203679A JPS55104693A (en) | 1979-02-05 | 1979-02-05 | Filter medium for waste water treatment apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55104693A true JPS55104693A (en) | 1980-08-11 |
Family
ID=11794371
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1203679A Pending JPS55104693A (en) | 1979-02-05 | 1979-02-05 | Filter medium for waste water treatment apparatus |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55104693A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003053118A (en) * | 2001-08-09 | 2003-02-25 | Seiko Epson Corp | Resin filter for ink-jet recording device |
-
1979
- 1979-02-05 JP JP1203679A patent/JPS55104693A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003053118A (en) * | 2001-08-09 | 2003-02-25 | Seiko Epson Corp | Resin filter for ink-jet recording device |
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