JPS56150483A - Disposal of waste water or sludge - Google Patents
Disposal of waste water or sludgeInfo
- Publication number
- JPS56150483A JPS56150483A JP5465980A JP5465980A JPS56150483A JP S56150483 A JPS56150483 A JP S56150483A JP 5465980 A JP5465980 A JP 5465980A JP 5465980 A JP5465980 A JP 5465980A JP S56150483 A JPS56150483 A JP S56150483A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- waste water
- mixing vessel
- dehydration
- mixed
- 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.)
- Pending
Links
- 239000010802 sludge Substances 0.000 title abstract 8
- 239000002351 wastewater Substances 0.000 title abstract 6
- 230000018044 dehydration Effects 0.000 abstract 3
- 238000006297 dehydration reaction Methods 0.000 abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 229910052749 magnesium Inorganic materials 0.000 abstract 2
- 239000011777 magnesium Substances 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000004744 fabric Substances 0.000 abstract 1
- 239000011790 ferrous sulphate Substances 0.000 abstract 1
- 235000003891 ferrous sulphate Nutrition 0.000 abstract 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 abstract 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910021645 metal ion Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Abstract
PURPOSE: To improve the facility for dehydration of sludge in a solid-liquid separation step, by reacting waste water or sludge containing COD components with an oxidizing agent and a specified metal, and subjecting the waste water or sludge to a magnesium neutralization before the solid-liquid separation step.
CONSTITUTION: Waste water or sludge 1-1 containing COD components is introduced into the first mixing vessel 9, where it is mixed with a substance 2, such as ferrous sulfate, capable of dissociating metal ions in an aqueous solution. The waste water or sludge is then introduced into the second mixing vessel 10, where it is mixed and reacted with an oxidizing agent 3 such as hydrogen peroxide. Thereafter, the waste water or sludge is mixed with a magnesium-based alkali 4 such as magnesium oxide in the third mixing vessel 11 to neutralize it at pH6W7 or so. The adjusted sludge 5 is separated into dehydrated cake 7 and separated water 8 by dehydration with a dehydrator 6. In this process, crystalline precipitates with good facility for dehydration can be obtained in the third mixing vessel 11. Consequently, the water content of the dehydrated cake 7 becomes lower, and the clogging of a filter cloth scarcely happens.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5465980A JPS56150483A (en) | 1980-04-24 | 1980-04-24 | Disposal of waste water or sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5465980A JPS56150483A (en) | 1980-04-24 | 1980-04-24 | Disposal of waste water or sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56150483A true JPS56150483A (en) | 1981-11-20 |
Family
ID=12976908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5465980A Pending JPS56150483A (en) | 1980-04-24 | 1980-04-24 | Disposal of waste water or sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56150483A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59203692A (en) * | 1983-04-28 | 1984-11-17 | Dowa Mining Co Ltd | Treatment of pulp mill waste liquor |
| US6913698B2 (en) * | 2003-01-03 | 2005-07-05 | Huei-Tarng Liou | Method for reducing COD (chemical oxygen demand) in waste water by using O3 with valent ion chelation |
| CN111018181A (en) * | 2019-12-20 | 2020-04-17 | 上海海事大学 | Magnesium-based ship tail gas desulfurization washing water treatment method |
-
1980
- 1980-04-24 JP JP5465980A patent/JPS56150483A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59203692A (en) * | 1983-04-28 | 1984-11-17 | Dowa Mining Co Ltd | Treatment of pulp mill waste liquor |
| US6913698B2 (en) * | 2003-01-03 | 2005-07-05 | Huei-Tarng Liou | Method for reducing COD (chemical oxygen demand) in waste water by using O3 with valent ion chelation |
| CN111018181A (en) * | 2019-12-20 | 2020-04-17 | 上海海事大学 | Magnesium-based ship tail gas desulfurization washing water treatment method |
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