JPS571498A - Disposal of cod-contng. waste water - Google Patents
Disposal of cod-contng. waste waterInfo
- Publication number
- JPS571498A JPS571498A JP7453480A JP7453480A JPS571498A JP S571498 A JPS571498 A JP S571498A JP 7453480 A JP7453480 A JP 7453480A JP 7453480 A JP7453480 A JP 7453480A JP S571498 A JPS571498 A JP S571498A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- waste water
- acid
- vessel
- contng
- 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
- 239000002351 wastewater Substances 0.000 title abstract 4
- 239000010802 sludge Substances 0.000 abstract 6
- 239000002253 acid Substances 0.000 abstract 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- 239000011707 mineral Substances 0.000 abstract 2
- 230000001376 precipitating effect Effects 0.000 abstract 2
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 229910000514 dolomite Inorganic materials 0.000 abstract 1
- 239000010459 dolomite Substances 0.000 abstract 1
- RBTARNINKXHZNM-UHFFFAOYSA-K iron trichloride Chemical compound Cl[Fe](Cl)Cl RBTARNINKXHZNM-UHFFFAOYSA-K 0.000 abstract 1
- FLTRNWIFKITPIO-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe] FLTRNWIFKITPIO-UHFFFAOYSA-N 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 1
- 239000000347 magnesium hydroxide Substances 0.000 abstract 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000011259 mixed solution Substances 0.000 abstract 1
- 238000006386 neutralization reaction Methods 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 239000008213 purified water Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
PURPOSE: To remarkably improve the concentrating and dewatering properties of precipitating sludge and to lower a required amount of a mineral acid, by combining Fenton's process for the disposal of waste water with neutralization using magnesium.
CONSTITUTION: A metal ion-dissocciating substance 3-2, e.g. FeCl3, and an oxidizing agent 4-2, e.g. H2O2 or the like, are added into COD-contng. waste water 1 in an agitating vessel 2. An acid 15 may be added to adjust the waste water at pH3-4 or so, if necessary. The mixed solution is agitated for a certain period. The reacted liquid is introduced into a neutralizing vessel 5, where the liquid is neutralized at pH6-8 or so by the addition of an alkali agent 6 such as Mg(OH)2, MgO, dolomite or the like. Consequently, extremely thick sludge mainly composed of Fe(OH)3 is sufficiently precipitated. The sludge is separated as precipitating sludge 9 in a sedimentation pool 7 with high separability. The sludge as such is extracted as sludge 10, and dissolved by a mineral acid 12, e.g. sulfuric acid, in an acid treating vessel 11. The effluent from the pool 7 is taken out as purified water.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7453480A JPS571498A (en) | 1980-06-03 | 1980-06-03 | Disposal of cod-contng. waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7453480A JPS571498A (en) | 1980-06-03 | 1980-06-03 | Disposal of cod-contng. waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS571498A true JPS571498A (en) | 1982-01-06 |
Family
ID=13550046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7453480A Pending JPS571498A (en) | 1980-06-03 | 1980-06-03 | Disposal of cod-contng. waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS571498A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007250474A (en) * | 2006-03-17 | 2007-09-27 | Nittan Co Ltd | Earthquake safety light |
| CN102951713A (en) * | 2012-11-02 | 2013-03-06 | 华南理工大学 | Polymeric ferric sulfate water treatment agent and preparation method thereof |
-
1980
- 1980-06-03 JP JP7453480A patent/JPS571498A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007250474A (en) * | 2006-03-17 | 2007-09-27 | Nittan Co Ltd | Earthquake safety light |
| CN102951713A (en) * | 2012-11-02 | 2013-03-06 | 华南理工大学 | Polymeric ferric sulfate water treatment agent and preparation method thereof |
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