JPS56150481A - Coagulation process for waste water - Google Patents
Coagulation process for waste waterInfo
- Publication number
- JPS56150481A JPS56150481A JP5466080A JP5466080A JPS56150481A JP S56150481 A JPS56150481 A JP S56150481A JP 5466080 A JP5466080 A JP 5466080A JP 5466080 A JP5466080 A JP 5466080A JP S56150481 A JPS56150481 A JP S56150481A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- water
- ions
- flocks
- separated
- 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 3
- 230000015271 coagulation Effects 0.000 title abstract 2
- 238000005345 coagulation Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 239000010802 sludge Substances 0.000 abstract 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- 244000144992 flock Species 0.000 abstract 4
- 150000002500 ions Chemical class 0.000 abstract 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000011707 mineral Substances 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 abstract 1
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- 229910001447 ferric ion Inorganic materials 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- -1 iron ions Chemical class 0.000 abstract 1
- 229910021506 iron(II) hydroxide Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000008213 purified water Substances 0.000 abstract 1
- 238000004062 sedimentation Methods 0.000 abstract 1
Landscapes
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To reduce the volume of generated sludge and to enhance the facility for dehydration of the sludge, by adding iron ions or the like in waste water to generate flocks, adding a mineral acid and an oxidizing agent thereto, and then dehydrating the flocks.
CONSTITUTION: Stock water 1 is mixed with a liquid 2 containing Fe ions, Al ions, Cu ions, etc. which is returned from a dehydrator 9, to form flocks composed mainly of Fe(OH)2 in a flocculator 3. The flocks are then precipitated in a coagulation sedimentation pool 4, and the waste water is separated to purified water 5 and thickened sludge 6. The sludge 6 is mixed with a mineral acid 7, e.g. sulfuric acid, and agitated in the first mixing vessel 14. The sludge is then mixed with an oxidizing agent 8, e.g. H2O2, and agitated in the second mixing vessel 15. Thereafter, the sludge is carried to the dehydrator 9, e.g. a filter press, where the sludge is separated to dehydrated cake 10 and separated water 11-1. The separated water 11-1, containing ferric ions and the like, is returned as a flocculant and added to the stock water 1.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5466080A JPS56150481A (en) | 1980-04-24 | 1980-04-24 | Coagulation process for waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5466080A JPS56150481A (en) | 1980-04-24 | 1980-04-24 | Coagulation process for waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56150481A true JPS56150481A (en) | 1981-11-20 |
Family
ID=12976937
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5466080A Pending JPS56150481A (en) | 1980-04-24 | 1980-04-24 | Coagulation process for waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56150481A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02157005A (en) * | 1988-12-06 | 1990-06-15 | Japan Organo Co Ltd | Treatment apparatus for flocculating settling |
| KR100411267B1 (en) * | 1999-12-23 | 2003-12-18 | 주식회사 포스코 | Method For Dewatering Sludge Containing Fe |
| US8097167B2 (en) | 2006-01-18 | 2012-01-17 | Basf Se | Concentration of suspensions |
| WO2013060700A1 (en) | 2011-10-25 | 2013-05-02 | Basf Se | Concentration of suspensions |
| WO2014019993A1 (en) | 2012-07-31 | 2014-02-06 | Basf Se | Concentration of suspensions |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5190758A (en) * | 1975-02-07 | 1976-08-09 | ||
| JPS5245582A (en) * | 1975-10-09 | 1977-04-11 | Tokai Denka Kogyo Kk | Solid-liquid separation method of organic waste fluid sludge |
-
1980
- 1980-04-24 JP JP5466080A patent/JPS56150481A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5190758A (en) * | 1975-02-07 | 1976-08-09 | ||
| JPS5245582A (en) * | 1975-10-09 | 1977-04-11 | Tokai Denka Kogyo Kk | Solid-liquid separation method of organic waste fluid sludge |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02157005A (en) * | 1988-12-06 | 1990-06-15 | Japan Organo Co Ltd | Treatment apparatus for flocculating settling |
| KR100411267B1 (en) * | 1999-12-23 | 2003-12-18 | 주식회사 포스코 | Method For Dewatering Sludge Containing Fe |
| US8097167B2 (en) | 2006-01-18 | 2012-01-17 | Basf Se | Concentration of suspensions |
| US8506822B2 (en) | 2006-01-18 | 2013-08-13 | Basf Se | Concentration of suspensions |
| WO2013060700A1 (en) | 2011-10-25 | 2013-05-02 | Basf Se | Concentration of suspensions |
| WO2014019993A1 (en) | 2012-07-31 | 2014-02-06 | Basf Se | Concentration of suspensions |
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