MD4103B1 - Process for waste water treatment from fluoride ions - Google Patents

Process for waste water treatment from fluoride ions

Info

Publication number
MD4103B1
MD4103B1 MDA20100120A MD20100120A MD4103B1 MD 4103 B1 MD4103 B1 MD 4103B1 MD A20100120 A MDA20100120 A MD A20100120A MD 20100120 A MD20100120 A MD 20100120A MD 4103 B1 MD4103 B1 MD 4103B1
Authority
MD
Moldova
Prior art keywords
water treatment
waste water
treatment
fluoride
waste
Prior art date
Application number
MDA20100120A
Other languages
Moldavian (mo)
Romanian (ro)
Other versions
MD4103C1 (en
Inventor
Olga Covaliova
Victor Covaliov
Original Assignee
Univ De Stat Din Moldova
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 Univ De Stat Din Moldova filed Critical Univ De Stat Din Moldova
Priority to MDA20100120A priority Critical patent/MD4103C1/en
Publication of MD4103B1 publication Critical patent/MD4103B1/en
Publication of MD4103C1 publication Critical patent/MD4103C1/en

Links

Abstract

The invention relates to processes for waste water treatment and environmental protection, namely to a process for waste water treatment from fluoride ions.The process, according to the invention, provides for the galvanocoagulative treatment of waste waters upon the abrasive mechanical action using a galvanic pair aluminum/carbonic material with the addition of corundum as abrasive material and subsequent separation of the formed sediment, at the same time prior to treatment in the waste waters is additionally introduced an eluate, which is formed during the regeneration of ion-exchange resins with sodium chloride, after the water softening. The eluate is introduced according to the following calculation, 2...4 mg-equiv. of calcium and magnesium cations per 1 mg of removed fluoride, and the galvanocoagulation process is carried out at a pH of 4.6...5.0 during 8...10 min.The result is to increase the efficiency and productivity of the process for fluoride removal from waste waters, as well as reduce the cost of the process.
MDA20100120A 2010-10-25 2010-10-25 Process for waste water treatment from fluoride ions MD4103C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20100120A MD4103C1 (en) 2010-10-25 2010-10-25 Process for waste water treatment from fluoride ions

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20100120A MD4103C1 (en) 2010-10-25 2010-10-25 Process for waste water treatment from fluoride ions

Publications (2)

Publication Number Publication Date
MD4103B1 true MD4103B1 (en) 2011-03-31
MD4103C1 MD4103C1 (en) 2011-10-31

Family

ID=45815060

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20100120A MD4103C1 (en) 2010-10-25 2010-10-25 Process for waste water treatment from fluoride ions

Country Status (1)

Country Link
MD (1) MD4103C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103880134A (en) * 2014-03-14 2014-06-25 河海大学 Novel integrated groundwater fluoride removal device
CN111278578A (en) * 2017-11-10 2020-06-12 日本瑞翁株式会社 Method and apparatus for regenerating cleaning solvent composition, and method and system for cleaning object to be cleaned

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2373632A (en) * 1942-06-24 1945-04-10 Resinous Prod & Chemical Co Removal of fluorine from water
MD1760G2 (en) * 1999-04-08 2002-03-31 Государственный Университет Молд0 Process for defluorination of natural water

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103880134A (en) * 2014-03-14 2014-06-25 河海大学 Novel integrated groundwater fluoride removal device
CN103880134B (en) * 2014-03-14 2016-06-15 河海大学 A kind of novel all-in-one Removal of Fluorine From Underground Water device
CN111278578A (en) * 2017-11-10 2020-06-12 日本瑞翁株式会社 Method and apparatus for regenerating cleaning solvent composition, and method and system for cleaning object to be cleaned

Also Published As

Publication number Publication date
MD4103C1 (en) 2011-10-31

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
MM4A Patent for invention definitely lapsed due to non-payment of fees