RU2008119768A - METHOD FOR PURIFICATION OF ACID LOW-MOUND MINE AND SUBWAY WATERS - Google Patents
METHOD FOR PURIFICATION OF ACID LOW-MOUND MINE AND SUBWAY WATERS Download PDFInfo
- Publication number
- RU2008119768A RU2008119768A RU2008119768/15A RU2008119768A RU2008119768A RU 2008119768 A RU2008119768 A RU 2008119768A RU 2008119768/15 A RU2008119768/15 A RU 2008119768/15A RU 2008119768 A RU2008119768 A RU 2008119768A RU 2008119768 A RU2008119768 A RU 2008119768A
- Authority
- RU
- Russia
- Prior art keywords
- flocculant
- purification
- separation
- volume ratio
- mine
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 7
- 239000002253 acid Substances 0.000 title claims abstract 3
- 238000000746 purification Methods 0.000 title claims abstract 3
- 239000003643 water by type Substances 0.000 title claims abstract 3
- 229920002401 polyacrylamide Polymers 0.000 claims abstract 6
- 239000002244 precipitate Substances 0.000 claims abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 6
- 125000000129 anionic group Chemical group 0.000 claims abstract 4
- 238000000926 separation method Methods 0.000 claims abstract 4
- 235000011116 calcium hydroxide Nutrition 0.000 claims abstract 2
- 239000000920 calcium hydroxide Substances 0.000 claims abstract 2
- 125000002091 cationic group Chemical group 0.000 claims abstract 2
- 238000005189 flocculation Methods 0.000 claims abstract 2
- 229910001385 heavy metal Inorganic materials 0.000 claims abstract 2
- 150000002500 ions Chemical class 0.000 claims abstract 2
- 239000000203 mixture Substances 0.000 claims abstract 2
- 238000006386 neutralization reaction Methods 0.000 claims abstract 2
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
1. Способ очистки кислых маломутных шахтных и подотвальных вод, содержащих ионы тяжелых металлов, включающий нейтрализацию известковым молоком до pH 7,0-8,5, обработку флокулянтом на основе полиакриламида, отстаивание и отделение осветленной воды от осадка, отличающийся тем, что процесс флокуляции ведут в присутствии осадка, полученного после отделения осветленной воды в предыдущем цикле, в качестве флокулянта используют анионный полиакриламид с молекулярной массой не менее 10·106. ! 2. Способ по п.1, отличающийся тем, что осадок, полученный в предыдущем цикле, используют преимущественно в объемном соотношении к воде, поступающей на очистку, равным 0,5-1:10. ! 3. Способ по п.1, отличающийся тем, что в качестве флокулянта используют смесь анионного и катионного полиакриламидов в объемном соотношении, равном 3-2:1.1. The method of purification of acid low-ash mine and base waters containing heavy metal ions, including neutralization with milk of lime to pH 7.0-8.5, treatment with a polyacrylamide flocculant, settling and separation of clarified water from the precipitate, characterized in that the flocculation process lead in the presence of a precipitate obtained after separation of clarified water in the previous cycle, anionic polyacrylamide with a molecular weight of at least 10 · 106 is used as a flocculant. ! 2. The method according to claim 1, characterized in that the precipitate obtained in the previous cycle is used mainly in a volume ratio of 0.5-1: 10 to the water entering the treatment. ! 3. The method according to claim 1, characterized in that as a flocculant use a mixture of anionic and cationic polyacrylamides in a volume ratio of 3-2: 1.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008119768/15A RU2386592C2 (en) | 2008-05-19 | 2008-05-19 | Method of purifying acidic slightly muddy mine and underdump water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008119768/15A RU2386592C2 (en) | 2008-05-19 | 2008-05-19 | Method of purifying acidic slightly muddy mine and underdump water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008119768A true RU2008119768A (en) | 2009-11-27 |
| RU2386592C2 RU2386592C2 (en) | 2010-04-20 |
Family
ID=41476203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008119768/15A RU2386592C2 (en) | 2008-05-19 | 2008-05-19 | Method of purifying acidic slightly muddy mine and underdump water |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2386592C2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2438999C1 (en) * | 2010-04-28 | 2012-01-10 | Государственное образовательное учреждение высшего профессионального образования "Уфимский государственный нефтяной технический университет" | Method of neutralising underspoil acid sulphate-containing effluents |
| RU2538900C1 (en) * | 2013-05-29 | 2015-01-10 | Открытое Акционерное Общество "Корпорация Всмпо-Ависма" | Treatment of effluents of titanium-magnesium production |
| RU2751783C2 (en) * | 2019-07-17 | 2021-07-16 | Общество с ограниченной ответственностью "Средняя Волга" | Method for waste water purification from heavy metal ions |
| EP3925710A1 (en) | 2020-06-16 | 2021-12-22 | Yara International ASA | Method for treating solid hazardous heavy metal-containing compositions |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4728438A (en) * | 1985-12-27 | 1988-03-01 | Union Oil Company Of California | Process for reducing the concentration of suspended solids in clarified geothermal brine |
| US5286806C1 (en) * | 1993-05-14 | 2001-01-30 | Cytec Tech Corp | Methods of making and using high molecular weight acrylamide polymers |
| RU2141456C1 (en) * | 1998-11-06 | 1999-11-20 | Открытое акционерное общество "АВИСМА титано-магниевый комбинат" | Method of treatment of sewage waters of titanium-magnesium production |
| RU2158327C1 (en) * | 2000-02-02 | 2000-10-27 | Открытое акционерное общество "Центральный научно-исследовательский институт бумаги" | Method of treatment of excessive circulating water of cardboard production for its reuse |
| RU2315008C1 (en) * | 2006-03-23 | 2008-01-20 | Федор Иванович Лобанов | Method of sedimentation of the argillous slimes from the salting solutions containing the finely dispersed argillous particles |
-
2008
- 2008-05-19 RU RU2008119768/15A patent/RU2386592C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2386592C2 (en) | 2010-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20100520 |
|
| NF4A | Reinstatement of patent |
Effective date: 20110510 |
|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20130520 |
|
| NF4A | Reinstatement of patent |
Effective date: 20140920 |
|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20160520 |
|
| TK4A | Correction to the publication in the bulletin (patent) |
Free format text: AMENDMENT TO CHAPTER -MM4A - IN JOURNAL: 4-2017 |