JPS5531437A - Removal of arsenic and silicic acid present in industrial waste water - Google Patents
Removal of arsenic and silicic acid present in industrial waste waterInfo
- Publication number
- JPS5531437A JPS5531437A JP10443178A JP10443178A JPS5531437A JP S5531437 A JPS5531437 A JP S5531437A JP 10443178 A JP10443178 A JP 10443178A JP 10443178 A JP10443178 A JP 10443178A JP S5531437 A JPS5531437 A JP S5531437A
- Authority
- JP
- Japan
- Prior art keywords
- arsenic
- silicic acid
- ion
- waste water
- ferrous
- 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.)
- Granted
Links
- 229910052785 arsenic Inorganic materials 0.000 title abstract 7
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 title abstract 7
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 title abstract 5
- 235000012239 silicon dioxide Nutrition 0.000 title abstract 5
- 229940000488 arsenic acid Drugs 0.000 title abstract 4
- 239000010842 industrial wastewater Substances 0.000 title abstract 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 2
- 229910001448 ferrous ion Inorganic materials 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 239000002244 precipitate Substances 0.000 abstract 2
- 239000002351 wastewater Substances 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract 1
- HAYXDMNJJFVXCI-UHFFFAOYSA-N arsenic(5+) Chemical compound [As+5] HAYXDMNJJFVXCI-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000000701 coagulant Substances 0.000 abstract 1
- 229910001447 ferric ion Inorganic materials 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 238000010248 power generation Methods 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Removal Of Specific Substances (AREA)
Abstract
PURPOSE: To remove arsenic and silicic acid present in industrial waste water inexpensively by adding ferrous salt to the waste water containing dissolved arsenic and silicic acid therein, oxidizing ferrous salt and arsenic with an oxidizing agent and adjusting the pH within the predetermined range.
CONSTITUTION: Arsenic ane silicic acid entrained in steam for geothermal electric power generation are dissolved in feed water 1 wihtin a mixer. An oxidizing agent such as H2O2 and ferrous ion are added to the feed water to oxidize at least 40% of the ferrous ion to ferric ion and at the same time arsenious ion to arsenic ion. The pH of the solution is adjusted with an solution of NaOH to 2.5W5. Arsenic and silicic acid together with ferrous salt and ferric salt are precipituted as a co-precipitate 6. If necessary, a coagulant 7 is added to the solution to aggregate the co- precipitate 6 which is then introduced into a settling separator 8. The coprecipitate 6 is separated by means of a dehydrator 10 and the dehydrated liquid is recycled to use. As compared with prior art, the amounts of agents used can be reduced and the amount of the residual arsenic present in the waste water can be reduced to below 0.05 ppm.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53104431A JPS5834195B2 (en) | 1978-08-29 | 1978-08-29 | Method for removing arsenic and silicic acid contained in industrial wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53104431A JPS5834195B2 (en) | 1978-08-29 | 1978-08-29 | Method for removing arsenic and silicic acid contained in industrial wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5531437A true JPS5531437A (en) | 1980-03-05 |
| JPS5834195B2 JPS5834195B2 (en) | 1983-07-25 |
Family
ID=14380477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53104431A Expired JPS5834195B2 (en) | 1978-08-29 | 1978-08-29 | Method for removing arsenic and silicic acid contained in industrial wastewater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5834195B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56128038A (en) * | 1980-03-11 | 1981-10-07 | Nec Corp | Two-way amplifier of two-wire system |
| JP2005000823A (en) * | 2003-06-12 | 2005-01-06 | Japan Science & Technology Agency | How to treat geothermal water |
| US8597521B1 (en) * | 2009-06-24 | 2013-12-03 | Simbol Inc. | Selective removal of silica from silica containing brines |
| US9034294B1 (en) | 2009-04-24 | 2015-05-19 | Simbol, Inc. | Preparation of lithium carbonate from lithium chloride containing brines |
| US9644126B2 (en) | 2009-06-24 | 2017-05-09 | Simbol, Inc. | Treated geothermal brine compositions with reduced concentrations of silica, iron, and zinc |
| US9644866B2 (en) | 2009-06-24 | 2017-05-09 | Simbol, Inc. | Treated brine compositions with reduced concentrations of potassium, rubidium, and cesium |
| US9650555B2 (en) | 2009-06-24 | 2017-05-16 | Simbol, Inc. | Treated geothermal brine compositions with reduced concentrations of iron and silica |
| US10190030B2 (en) | 2009-04-24 | 2019-01-29 | Alger Alternative Energy, Llc | Treated geothermal brine compositions with reduced concentrations of silica, iron and lithium |
| US10683563B2 (en) | 2009-06-24 | 2020-06-16 | Terralithium Llc | Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese |
| US12540267B2 (en) | 2009-04-24 | 2026-02-03 | Terralithium Llc | Treated geothermal brine compositions with reduced concentration of silica, iron and lithium |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529963A (en) * | 1975-07-11 | 1977-01-25 | Dowa Mining Co Ltd | Method for removing arsenic and silicic acid contained in aqueous solu tion simultaneously |
-
1978
- 1978-08-29 JP JP53104431A patent/JPS5834195B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS529963A (en) * | 1975-07-11 | 1977-01-25 | Dowa Mining Co Ltd | Method for removing arsenic and silicic acid contained in aqueous solu tion simultaneously |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56128038A (en) * | 1980-03-11 | 1981-10-07 | Nec Corp | Two-way amplifier of two-wire system |
| JP2005000823A (en) * | 2003-06-12 | 2005-01-06 | Japan Science & Technology Agency | How to treat geothermal water |
| US9034294B1 (en) | 2009-04-24 | 2015-05-19 | Simbol, Inc. | Preparation of lithium carbonate from lithium chloride containing brines |
| US9834449B2 (en) | 2009-04-24 | 2017-12-05 | Alger Alternative Energy, Llc | Preparation of lithium carbonate from lithium chloride containing brines |
| US10190030B2 (en) | 2009-04-24 | 2019-01-29 | Alger Alternative Energy, Llc | Treated geothermal brine compositions with reduced concentrations of silica, iron and lithium |
| US12540267B2 (en) | 2009-04-24 | 2026-02-03 | Terralithium Llc | Treated geothermal brine compositions with reduced concentration of silica, iron and lithium |
| US8597521B1 (en) * | 2009-06-24 | 2013-12-03 | Simbol Inc. | Selective removal of silica from silica containing brines |
| US9644126B2 (en) | 2009-06-24 | 2017-05-09 | Simbol, Inc. | Treated geothermal brine compositions with reduced concentrations of silica, iron, and zinc |
| US9644866B2 (en) | 2009-06-24 | 2017-05-09 | Simbol, Inc. | Treated brine compositions with reduced concentrations of potassium, rubidium, and cesium |
| US9650555B2 (en) | 2009-06-24 | 2017-05-16 | Simbol, Inc. | Treated geothermal brine compositions with reduced concentrations of iron and silica |
| US10683563B2 (en) | 2009-06-24 | 2020-06-16 | Terralithium Llc | Treated geothermal brine compositions with reduced concentrations of silica, iron and manganese |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5834195B2 (en) | 1983-07-25 |
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