FR2020564A1 - Purification of polluted water by treatment with - bentonite - Google Patents

Purification of polluted water by treatment with - bentonite

Info

Publication number
FR2020564A1
FR2020564A1 FR6934379A FR6934379A FR2020564A1 FR 2020564 A1 FR2020564 A1 FR 2020564A1 FR 6934379 A FR6934379 A FR 6934379A FR 6934379 A FR6934379 A FR 6934379A FR 2020564 A1 FR2020564 A1 FR 2020564A1
Authority
FR
France
Prior art keywords
bentonite
polluted water
purification
treatment
alkaline earth
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.)
Withdrawn
Application number
FR6934379A
Other languages
French (fr)
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.)
Fried Krupp AG
Original Assignee
Fried Krupp AG
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 Fried Krupp AG filed Critical Fried Krupp AG
Publication of FR2020564A1 publication Critical patent/FR2020564A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0202—Separation of non-miscible liquids by ab- or adsorption
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/04—Breaking emulsions
    • B01D17/047—Breaking emulsions with separation aids

Abstract

Polluted water containing colloidal substances and/or dissolved substances, and optionally oil and/or emulsions of oil, is purified by (a) aerating for 1-2 days, (b) adding 75-150 g. bentonite per m.3 water, and (c) stirring the mixture. In addition to the bentonite, 30-50 g./m.3 of alkaline earth salts may be added to the polluted water. The alkaline earth salt is pref. calcium chloride and/or magnesium sulphate.
FR6934379A 1968-10-12 1969-10-08 Purification of polluted water by treatment with - bentonite Withdrawn FR2020564A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681802827 DE1802827A1 (en) 1968-10-12 1968-10-12 Process for the treatment of contaminated water by means of chemical treatment

Publications (1)

Publication Number Publication Date
FR2020564A1 true FR2020564A1 (en) 1970-07-17

Family

ID=5710405

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6934379A Withdrawn FR2020564A1 (en) 1968-10-12 1969-10-08 Purification of polluted water by treatment with - bentonite

Country Status (5)

Country Link
BE (1) BE740073A (en)
DE (1) DE1802827A1 (en)
FR (1) FR2020564A1 (en)
LU (1) LU59593A1 (en)
NL (1) NL6914922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000674A1 (en) * 1977-07-21 1979-02-07 TECHNIME S.A. Société anonyme dite: Method for breaking up emulsions and means for carrying out this method.

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CZ280037B6 (en) * 1994-03-16 1995-10-18 Vodní Stavby, A.S. Method of treating water contaminated predominantly with oil component by the action of bentonite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000674A1 (en) * 1977-07-21 1979-02-07 TECHNIME S.A. Société anonyme dite: Method for breaking up emulsions and means for carrying out this method.

Also Published As

Publication number Publication date
BE740073A (en) 1970-03-16
DE1802827A1 (en) 1970-07-02
NL6914922A (en) 1970-04-14
LU59593A1 (en) 1970-01-09

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Legal Events

Date Code Title Description
ST Notification of lapse