JPS5771699A - Treating method for organic waste liquid - Google Patents
Treating method for organic waste liquidInfo
- Publication number
- JPS5771699A JPS5771699A JP55148042A JP14804280A JPS5771699A JP S5771699 A JPS5771699 A JP S5771699A JP 55148042 A JP55148042 A JP 55148042A JP 14804280 A JP14804280 A JP 14804280A JP S5771699 A JPS5771699 A JP S5771699A
- Authority
- JP
- Japan
- Prior art keywords
- slurry
- separated
- sludge
- treated
- 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.)
- Pending
Links
Landscapes
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To treat a waste liquid at low cost while reducing the amount of a sludge generated, by a method wherein an organic waste liquid is biologically treated, then a mixed slurry of a residual sludge and treated water is separated and concentrated by using an iron-based flocculant, and the concentrated slurry is mechanically dehydrated after adding a ferrous salt and H2O2.
CONSTITUTION: Raw faces 31 are fed into a biological treating step 32 such as a biological nitrification or denitrification process. In order to maintain a desired concentration of an activated sludge in the step 32, a portion of mixed liquor suspended solids (MLSS) is fed into a sludge concentrator 33 to separate it into a concentrated sludge 34 and concentration-derived separated water 35, and the sludge 34 is returned to the step 32 while the separated water 35 is mixed into an outflow slurry 36. To the mixed slurry 37 thus formed, the iron-based flocculant 39 and slaked lime 40 are added in a stirring tank 38, and then the mixed slurry 37 is separated into thickening-derived separated water 42 and a thicknened slurry 43 by a thckener 41. The separated water 42 is treated in a COD removing step A to become high-grade treated water 51. On the other hand, the slurry 43 is fed into a mixing tank 44, where FeSO4 45 is added, then H2O2 or O3 46 is added to the slurry in an oxidizing tank 47, and the slurry thus treated is separated into dehydration-derived separated water 49 and a dehydrated cake 50 by a filter press 48. The separated water 49 is then returned to the tank 38.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55148042A JPS5771699A (en) | 1980-10-22 | 1980-10-22 | Treating method for organic waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55148042A JPS5771699A (en) | 1980-10-22 | 1980-10-22 | Treating method for organic waste liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5771699A true JPS5771699A (en) | 1982-05-04 |
Family
ID=15443820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55148042A Pending JPS5771699A (en) | 1980-10-22 | 1980-10-22 | Treating method for organic waste liquid |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5771699A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008174914A (en) * | 2007-01-16 | 2008-07-31 | C-Cube Corp | Ladder overturn prevention device |
| US7716941B2 (en) | 2003-01-13 | 2010-05-18 | Lg Electronics Inc. | Multi-type air conditioner with defrosting device |
| CN104944624A (en) * | 2015-01-24 | 2015-09-30 | 濮阳市化工研究所 | Displacement-fronting advanced oxidation low-sludge sewage treatment method |
-
1980
- 1980-10-22 JP JP55148042A patent/JPS5771699A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7716941B2 (en) | 2003-01-13 | 2010-05-18 | Lg Electronics Inc. | Multi-type air conditioner with defrosting device |
| JP2008174914A (en) * | 2007-01-16 | 2008-07-31 | C-Cube Corp | Ladder overturn prevention device |
| CN104944624A (en) * | 2015-01-24 | 2015-09-30 | 濮阳市化工研究所 | Displacement-fronting advanced oxidation low-sludge sewage treatment method |
| CN104944624B (en) * | 2015-01-24 | 2019-03-29 | 濮阳市化工研究所 | A kind of low mud and sewage processing method of displacement Forward advanced oxidation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3360031D1 (en) | Method and apparatus for the biological purification of waste waters containing phosphate | |
| DE3371498D1 (en) | Process and apparatus for the removal of heavy metals from waste water | |
| DE69004507D1 (en) | Improved removal of phosphates in wastewater treatment using activated sludge processes. | |
| JPS55155798A (en) | Treating method of organic waste water | |
| JPS5756093A (en) | Biochemical treatment of organic waste water | |
| JPS56150493A (en) | Disposal of organic waste water | |
| EP0104648A3 (en) | Waste water treatment | |
| JPS5771699A (en) | Treating method for organic waste liquid | |
| JPS57105297A (en) | Treatment of in-purifier sludge | |
| GB1368806A (en) | Treatment of industrial and domestic waste waters | |
| JPS56155693A (en) | Treatment of dense organic waste liquid | |
| JPS54123247A (en) | Treatment of raw urine and clarification tank sludge | |
| JPS5724693A (en) | Disposal of organic waste water | |
| JPS5753298A (en) | Treatment of organic liquid waste | |
| JPS5768199A (en) | Treatment of organic waste liquid | |
| JPS57119899A (en) | Treatment of organic waste liquid | |
| JPS565185A (en) | Treatment of waste water of low biochemical oxygen demand | |
| JPS643158B2 (en) | ||
| JPS56168897A (en) | Treatment of organic waste water | |
| JPS57197100A (en) | Treatment of sewage sludge | |
| JPS6451200A (en) | Treatment of waste | |
| JPS57204298A (en) | Dewatering method for highly-concentrated sludge | |
| Echenfelder | Wastewater treatment design, Part II | |
| JPS5763197A (en) | High degree treatment of organic sewage | |
| JPS5724692A (en) | Disposal of organic waste water |