MD2478G2 - Proces for regeneration of the used active coal - Google Patents
Proces for regeneration of the used active coalInfo
- Publication number
- MD2478G2 MD2478G2 MDA20030175A MD20030175A MD2478G2 MD 2478 G2 MD2478 G2 MD 2478G2 MD A20030175 A MDA20030175 A MD A20030175A MD 20030175 A MD20030175 A MD 20030175A MD 2478 G2 MD2478 G2 MD 2478G2
- Authority
- MD
- Moldova
- Prior art keywords
- hours
- active coal
- regeneration
- during
- used active
- Prior art date
Links
Landscapes
- Solid Fuels And Fuel-Associated Substances (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to a process for regeneration of the active coal impurified with different non-organic and organic substances in the water purification process at the water purifying plants.The process, according to the invention, includes separation of the mechanical impurities, treatment with KOH solution at pH 11…13 during 20…30 hours, washing with demineralized water, drying at the temperature of 100…110°C during 3…5 hours and thermal treatment at the temperature of 450…600°C in the carbon dioxide atmosphere during 1,0…1,5 hours.The result consists in increasing the degree of humic substance removal from the pores of the used active coal.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20030175A MD2478G2 (en) | 2003-07-17 | 2003-07-17 | Proces for regeneration of the used active coal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MDA20030175A MD2478G2 (en) | 2003-07-17 | 2003-07-17 | Proces for regeneration of the used active coal |
Publications (2)
Publication Number | Publication Date |
---|---|
MD2478F1 MD2478F1 (en) | 2004-06-30 |
MD2478G2 true MD2478G2 (en) | 2005-01-31 |
Family
ID=32677980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MDA20030175A MD2478G2 (en) | 2003-07-17 | 2003-07-17 | Proces for regeneration of the used active coal |
Country Status (1)
Country | Link |
---|---|
MD (1) | MD2478G2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2523G2 (en) * | 2003-08-05 | 2005-03-31 | Институт Химии Академии Наук Молдовы | Process for regeneration of the used active coal (variants) |
MD3776G2 (en) * | 2007-09-06 | 2009-07-31 | Государственный Университет Молд0 | Process for photocatalytic regeneration of waste active coal |
MD4214C1 (en) * | 2012-06-18 | 2013-11-30 | Институт Химии Академии Наук Молдовы | Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4407725A (en) * | 1980-08-21 | 1983-10-04 | International Minerals & Chemical Corp. | Regeneration of activated carbon |
SU1189498A1 (en) * | 1980-05-23 | 1985-11-07 | Проектно-Конструкторское Бюро Ордена Трудового Красного Знамени Академии Коммунального Хозяйства Им.К.Д.Памфилова | Method of recovery of charcoal filter for purifying drinking water |
-
2003
- 2003-07-17 MD MDA20030175A patent/MD2478G2/en not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1189498A1 (en) * | 1980-05-23 | 1985-11-07 | Проектно-Конструкторское Бюро Ордена Трудового Красного Знамени Академии Коммунального Хозяйства Им.К.Д.Памфилова | Method of recovery of charcoal filter for purifying drinking water |
US4407725A (en) * | 1980-08-21 | 1983-10-04 | International Minerals & Chemical Corp. | Regeneration of activated carbon |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MD2523G2 (en) * | 2003-08-05 | 2005-03-31 | Институт Химии Академии Наук Молдовы | Process for regeneration of the used active coal (variants) |
MD3776G2 (en) * | 2007-09-06 | 2009-07-31 | Государственный Университет Молд0 | Process for photocatalytic regeneration of waste active coal |
MD4214C1 (en) * | 2012-06-18 | 2013-11-30 | Институт Химии Академии Наук Молдовы | Process for modifying the porous structure of activated coal impregnated with Cu(II) and its use for the treatment of underground waters from hydrogen sulfide and sulfides |
Also Published As
Publication number | Publication date |
---|---|
MD2478F1 (en) | 2004-06-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
KA4A | Patent for invention lapsed due to non-payment of fees (with right of restoration) | ||
MM4A | Patent for invention definitely lapsed due to non-payment of fees |