MD4103B1 - Process for waste water treatment from fluoride ions - Google Patents
Process for waste water treatment from fluoride ionsInfo
- 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
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.
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)
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)
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 |
-
2010
- 2010-10-25 MD MDA20100120A patent/MD4103C1/en not_active IP Right Cessation
Cited By (3)
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 |