JPS56168898A - Treatment of cod containing waste water - Google Patents
Treatment of cod containing waste waterInfo
- Publication number
- JPS56168898A JPS56168898A JP7408880A JP7408880A JPS56168898A JP S56168898 A JPS56168898 A JP S56168898A JP 7408880 A JP7408880 A JP 7408880A JP 7408880 A JP7408880 A JP 7408880A JP S56168898 A JPS56168898 A JP S56168898A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- sludge
- added
- agitating tank
- cod
- 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
- 239000002351 wastewater Substances 0.000 title abstract 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 4
- 239000010802 sludge Substances 0.000 abstract 4
- 239000003513 alkali Substances 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 230000002378 acidificating effect Effects 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 150000001455 metallic ions Chemical class 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 239000002585 base Substances 0.000 abstract 1
- 229910000019 calcium carbonate Inorganic materials 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
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000011777 magnesium Substances 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
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
PURPOSE: To prevent COD removal rate from lowering by adding an oxidizer and a metallic ion dissociating material to COD-contg. waste water and allowing these to react under acidic conditions then adding an alkali agent and subjecting the formed sludge to solid-liquid separation.
CONSTITUTION: In the 1st agitating tank 2, hydrogen peroxide 3 and a material 4 which dissociates metallic ions in an aqueous soln. such as ferrous sulfate are added to the COD-contg. waste water such as biologically treated water of night soil or the like, and these are agitated under acidic conditions. The reacting liquid 5 having completed oxidation reaction is flowed into the 2nd agitating tank 6, where a magnesium base alkali agent such as magnesium hydroxide or an alkali agent 7 of calcium carbonate is added thereto to neutralize, after which precipitate is allowed to deposit and sludge 10 is separated. The sludge 10 is transferred to the 3rd agitating tank 11, where a sulfuric acid is added thereto to dissolve the sludge, and this is conducted into the 4th agitating tank 14, where it is added with hydrogen peroxide 13 and this is recycled as return liquid 15 into the waste water 1.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7408880A JPS56168898A (en) | 1980-06-02 | 1980-06-02 | Treatment of cod containing waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7408880A JPS56168898A (en) | 1980-06-02 | 1980-06-02 | Treatment of cod containing waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56168898A true JPS56168898A (en) | 1981-12-25 |
| JPS6341638B2 JPS6341638B2 (en) | 1988-08-18 |
Family
ID=13537067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7408880A Granted JPS56168898A (en) | 1980-06-02 | 1980-06-02 | Treatment of cod containing waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56168898A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014233692A (en) * | 2013-06-04 | 2014-12-15 | 栗田工業株式会社 | Treatment method and treatment device for hard-biodegradable organic matter-containing water |
-
1980
- 1980-06-02 JP JP7408880A patent/JPS56168898A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014233692A (en) * | 2013-06-04 | 2014-12-15 | 栗田工業株式会社 | Treatment method and treatment device for hard-biodegradable organic matter-containing water |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6341638B2 (en) | 1988-08-18 |
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