FR775525A - Improvements to hard water softening filters - Google Patents

Improvements to hard water softening filters

Info

Publication number
FR775525A
FR775525A FR775525DA FR775525A FR 775525 A FR775525 A FR 775525A FR 775525D A FR775525D A FR 775525DA FR 775525 A FR775525 A FR 775525A
Authority
FR
France
Prior art keywords
hard water
water softening
softening filters
filters
hard
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Guillaume Alphonse Brudenne
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 filed Critical
Application granted granted Critical
Publication of FR775525A publication Critical patent/FR775525A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/48—Edge filtering elements, i.e. using contiguous impervious surfaces of spirally or helically wound bodies
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/42—Treatment of water, waste water, or sewage by ion-exchange

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
FR775525D 1933-09-28 1933-09-28 Improvements to hard water softening filters Expired FR775525A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR775525T 1933-09-28

Publications (1)

Publication Number Publication Date
FR775525A true FR775525A (en) 1934-12-31

Family

ID=9200498

Family Applications (1)

Application Number Title Priority Date Filing Date
FR775525D Expired FR775525A (en) 1933-09-28 1933-09-28 Improvements to hard water softening filters

Country Status (1)

Country Link
FR (1) FR775525A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681147A (en) * 1951-12-08 1954-06-15 John W Braswell Water softening apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2681147A (en) * 1951-12-08 1954-06-15 John W Braswell Water softening apparatus

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