JPS56168879A - Flocculation sedimentation treatment - Google Patents
Flocculation sedimentation treatmentInfo
- Publication number
- JPS56168879A JPS56168879A JP7182780A JP7182780A JPS56168879A JP S56168879 A JPS56168879 A JP S56168879A JP 7182780 A JP7182780 A JP 7182780A JP 7182780 A JP7182780 A JP 7182780A JP S56168879 A JPS56168879 A JP S56168879A
- Authority
- JP
- Japan
- Prior art keywords
- added
- sludge
- mineral acid
- flocculant
- waste water
- 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
- 238000005189 flocculation Methods 0.000 title 1
- 230000016615 flocculation Effects 0.000 title 1
- 238000004062 sedimentation Methods 0.000 title 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 abstract 4
- 239000010802 sludge Substances 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 3
- 239000011707 mineral Substances 0.000 abstract 3
- 239000002351 wastewater Substances 0.000 abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- -1 Fe3+ ions Chemical class 0.000 abstract 1
- 229910021578 Iron(III) chloride Inorganic materials 0.000 abstract 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 abstract 1
- 229920006318 anionic polymer Polymers 0.000 abstract 1
- 230000003311 flocculating effect Effects 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
- 239000000203 mixture Substances 0.000 abstract 1
- 239000007800 oxidant agent Substances 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- 239000002562 thickening agent Substances 0.000 abstract 1
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To reuse formed sludge as a flocculant by adding a mineral acid and at least an oxidizer such as hydrogen peroxide or ozone to the flocculated sludge formed from waste water contg. COD components.
CONSTITUTION: Waste water 1 contg. COD such as biologically treated water of sewage and night soil is introduced into a flocculating tank 2, where ferric chloride 3 is added and an org. high polymer flocculant 4 such as anionic polymer is added, after which it is separated to flocculated sludge 6 and treated water 7 in a settling basin 5. Thence, if necessary, it is further concd. with a thickener, after which a mineral acid 9 and hydrogen peroxide 10 are added in the 1st agitating tank 8 and the mixture is agitated at 2W4pH. Further, the mineral acid 9 is added in the 2nd agitating tank 11, and Fe(OH)3 is dissolved as Fe3+ ions, after which the sludge is recycled to the waste water 1, and is reused as a flocculant.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7182780A JPS56168879A (en) | 1980-05-29 | 1980-05-29 | Flocculation sedimentation treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7182780A JPS56168879A (en) | 1980-05-29 | 1980-05-29 | Flocculation sedimentation treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56168879A true JPS56168879A (en) | 1981-12-25 |
| JPS6339307B2 JPS6339307B2 (en) | 1988-08-04 |
Family
ID=13471764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7182780A Granted JPS56168879A (en) | 1980-05-29 | 1980-05-29 | Flocculation sedimentation treatment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56168879A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5641407A (en) * | 1995-01-25 | 1997-06-24 | Air Products And Chemicals, Inc. | Method for treating industrial effluent |
| EP0723938A3 (en) * | 1995-01-25 | 1998-06-17 | Air Products And Chemicals, Inc. | Method for treating water |
| JP2007196086A (en) * | 2006-01-24 | 2007-08-09 | Japan Organo Co Ltd | Concentration volume reduction process and arrangement of sludge |
| CN104507876A (en) * | 2012-07-31 | 2015-04-08 | 巴斯夫欧洲公司 | Concentration of suspensions |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6578499B1 (en) | 2019-02-19 | 2019-09-25 | 株式会社 五十嵐電機製作所 | General-purpose rotary encoder and servo motor using the same |
| KR20210056948A (en) | 2019-11-05 | 2021-05-20 | 가부시키가이샤 이가라시덴키세이사쿠쇼 | Universal Rotary Encoder |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244052A (en) * | 1975-10-03 | 1977-04-06 | Hitachi Ltd | Factory waste water processing method |
| JPS5398153A (en) * | 1977-02-08 | 1978-08-28 | Jgc Corp | Method of treating sludge exuded foul water |
-
1980
- 1980-05-29 JP JP7182780A patent/JPS56168879A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5244052A (en) * | 1975-10-03 | 1977-04-06 | Hitachi Ltd | Factory waste water processing method |
| JPS5398153A (en) * | 1977-02-08 | 1978-08-28 | Jgc Corp | Method of treating sludge exuded foul water |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5641407A (en) * | 1995-01-25 | 1997-06-24 | Air Products And Chemicals, Inc. | Method for treating industrial effluent |
| EP0723937A3 (en) * | 1995-01-25 | 1998-06-17 | Air Products And Chemicals, Inc. | Method for treating industrial effluent |
| EP0723938A3 (en) * | 1995-01-25 | 1998-06-17 | Air Products And Chemicals, Inc. | Method for treating water |
| JP2007196086A (en) * | 2006-01-24 | 2007-08-09 | Japan Organo Co Ltd | Concentration volume reduction process and arrangement of sludge |
| CN104507876A (en) * | 2012-07-31 | 2015-04-08 | 巴斯夫欧洲公司 | Concentration of suspensions |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6339307B2 (en) | 1988-08-04 |
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