JPS55104693A - Filter medium for waste water treatment apparatus - Google Patents

Filter medium for waste water treatment apparatus

Info

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
Application number
JP1203679A
Other languages
Japanese (ja)
Inventor
Kohei Sakurai
Shoji Oka
Akira Shikayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Achilles Corp
Original Assignee
Achilles Corp
Kohkoku Chemical Industry Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Achilles Corp, Kohkoku Chemical Industry Co Ltd filed Critical Achilles Corp
Priority to JP1203679A priority Critical patent/JPS55104693A/en
Publication of JPS55104693A publication Critical patent/JPS55104693A/en
Pending legal-status Critical Current

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.
JP1203679A 1979-02-05 1979-02-05 Filter medium for waste water treatment apparatus Pending JPS55104693A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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