JPS56150500A - Disposal of sludge - Google Patents
Disposal of sludgeInfo
- Publication number
- JPS56150500A JPS56150500A JP5526480A JP5526480A JPS56150500A JP S56150500 A JPS56150500 A JP S56150500A JP 5526480 A JP5526480 A JP 5526480A JP 5526480 A JP5526480 A JP 5526480A JP S56150500 A JPS56150500 A JP S56150500A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- phosphorus
- dephosphorizing
- anaerobic
- thickened
- 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
- 239000010802 sludge Substances 0.000 title abstract 10
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 3
- 239000011574 phosphorus Substances 0.000 abstract 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract 3
- 239000006228 supernatant Substances 0.000 abstract 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 2
- 239000011575 calcium Substances 0.000 abstract 2
- 229910052791 calcium Inorganic materials 0.000 abstract 2
- 230000008719 thickening Effects 0.000 abstract 2
- 239000002562 thickening agent Substances 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 abstract 1
- 239000001506 calcium phosphate Substances 0.000 abstract 1
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 1
- 235000011010 calcium phosphates Nutrition 0.000 abstract 1
- 230000029087 digestion Effects 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 229910052749 magnesium Inorganic materials 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 abstract 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Abstract
PURPOSE: To obtain a high dephosphorizing efficiency, by thickening excess sludge generated from an active sludge process including a biological dephosphorizing step, separating phosphoric acid from a separated liquid in the thickening step by the addition of a calcium agent, and introducing thickened sludge to the following disposing step.
CONSTITUTION: Sewage 1 is disposed and dephosphorized in an active sludge process 2 comprising an anaerobic part C, a denitrifing part D and an aerobic part E. Excess sludge 7 enriched in phosphorus disperses the phosphorus while staying in an anaerobic agitating vessel 8. The excess sludge 7 is divided into supernatant liquid 10 containing a large quantity of phosphorus and thickened sludge 11, by a thickener 9. The supernatant liqud 10 is mixed with a calcium agent 14, and carried through a dephosphorizing vessel 12 packed with a dephosphorizer 15. The precipitate of generated calcium phosphate is separated from the supernatant liquid 10. On the other hand, the thickened sludge 11 discharged from the thickener 9 is mixed with a magnesium agent 16, carried to the following suldge-disposing step 13, and reserved there. Digestion effluent A discharged from the step 13 is returned to the anaerobic part C of the active sludge process 2.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5526480A JPS56150500A (en) | 1980-04-25 | 1980-04-25 | Disposal of sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5526480A JPS56150500A (en) | 1980-04-25 | 1980-04-25 | Disposal of sludge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56150500A true JPS56150500A (en) | 1981-11-20 |
| JPH0131960B2 JPH0131960B2 (en) | 1989-06-28 |
Family
ID=12993734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5526480A Granted JPS56150500A (en) | 1980-04-25 | 1980-04-25 | Disposal of sludge |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56150500A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1000904A3 (en) * | 1998-11-11 | 2001-04-11 | Mitsubishi Materials Corporation | Method for recovering phosphate from sludge and system therefor |
| KR100346028B1 (en) * | 1999-11-18 | 2002-07-24 | 대림산업 주식회사 | Wastewater treatment process using return sludge reaction tank |
| KR100433791B1 (en) * | 2002-03-22 | 2004-06-04 | 삼성에버랜드 주식회사 | Biological dephosphorization method |
| KR100673832B1 (en) | 2006-01-27 | 2007-01-25 | (주)전테크 | Removal reactor of ammonia , phosphorous and solid in wastewater |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52124768A (en) * | 1976-04-12 | 1977-10-20 | Air Prod & Chem | Method of inhibiting breeding of fiborous biomass |
| JPS5468053A (en) * | 1977-11-11 | 1979-05-31 | Ebara Infilco Co Ltd | Digestion disposal method of thick organic suspension |
| JPS5539243A (en) * | 1978-09-12 | 1980-03-19 | Ebara Infilco Co Ltd | Biologically treating method for waste water |
| JPS5539258A (en) * | 1978-09-13 | 1980-03-19 | Ebara Infilco Co Ltd | Biologically treating method for waste water |
-
1980
- 1980-04-25 JP JP5526480A patent/JPS56150500A/en active Granted
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52124768A (en) * | 1976-04-12 | 1977-10-20 | Air Prod & Chem | Method of inhibiting breeding of fiborous biomass |
| JPS5468053A (en) * | 1977-11-11 | 1979-05-31 | Ebara Infilco Co Ltd | Digestion disposal method of thick organic suspension |
| JPS5539243A (en) * | 1978-09-12 | 1980-03-19 | Ebara Infilco Co Ltd | Biologically treating method for waste water |
| JPS5539258A (en) * | 1978-09-13 | 1980-03-19 | Ebara Infilco Co Ltd | Biologically treating method for waste water |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1000904A3 (en) * | 1998-11-11 | 2001-04-11 | Mitsubishi Materials Corporation | Method for recovering phosphate from sludge and system therefor |
| KR100346028B1 (en) * | 1999-11-18 | 2002-07-24 | 대림산업 주식회사 | Wastewater treatment process using return sludge reaction tank |
| KR100433791B1 (en) * | 2002-03-22 | 2004-06-04 | 삼성에버랜드 주식회사 | Biological dephosphorization method |
| KR100673832B1 (en) | 2006-01-27 | 2007-01-25 | (주)전테크 | Removal reactor of ammonia , phosphorous and solid in wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0131960B2 (en) | 1989-06-28 |
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