JPS6490098A - Treatment of organic sewage - Google Patents
Treatment of organic sewageInfo
- Publication number
- JPS6490098A JPS6490098A JP62243689A JP24368987A JPS6490098A JP S6490098 A JPS6490098 A JP S6490098A JP 62243689 A JP62243689 A JP 62243689A JP 24368987 A JP24368987 A JP 24368987A JP S6490098 A JPS6490098 A JP S6490098A
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- sewage
- org
- treatment
- slurry
- 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
- 239000010865 sewage Substances 0.000 title abstract 4
- 239000010802 sludge Substances 0.000 abstract 9
- 229910000389 calcium phosphate Inorganic materials 0.000 abstract 2
- 239000001506 calcium phosphate Substances 0.000 abstract 2
- 235000011010 calcium phosphates Nutrition 0.000 abstract 2
- 125000002091 cationic group Chemical group 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 239000002002 slurry Substances 0.000 abstract 2
- 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 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 abstract 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 abstract 1
- 239000011575 calcium Substances 0.000 abstract 1
- 230000003311 flocculating effect Effects 0.000 abstract 1
- 230000016615 flocculation Effects 0.000 abstract 1
- 238000005189 flocculation Methods 0.000 abstract 1
- 229910001679 gibbsite Inorganic materials 0.000 abstract 1
- FLTRNWIFKITPIO-UHFFFAOYSA-N iron;trihydrate Chemical compound O.O.O.[Fe] FLTRNWIFKITPIO-UHFFFAOYSA-N 0.000 abstract 1
- 239000012528 membrane Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000011574 phosphorus Substances 0.000 abstract 1
- 229910052698 phosphorus Inorganic materials 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 Sludge (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE:To rationalize sewage treatment by adding the flocculated sludge obtained by adding a cationic org. high molecular flocculant to activated sludge incorporated with calcium phosphate to org. sewage, and mixing the materials. CONSTITUTION:The flocculated sludge 7 obtained by adding the cationic org. high molecular flocculant 5 to activated sludge 4 incorporated with suspended solid-type calcium phosphate, mixing, and flocculating the sludge in a flocculation tank 6 is added to skimmed night soil 3. The materials are mixed in an agitated tank 8, and screened by a fine-mesh screen 9. The separated water 10 is biologically nitrated and denitrified 15, Ca<2+> 16 is added to the obtained activated sludge slurry, and the slurry is separated by a membrane 17. Since the difficult-to-dehydrate Al(OH)3 and Fe(OH)3 based sludge is not generated by this method, sludge treatment is drastically rationalized. In addition, the phosphorus contained in sewage can be effectively utilized for improving the dehydrating property of sludge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62243689A JPH0632833B2 (en) | 1987-09-30 | 1987-09-30 | Organic wastewater treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62243689A JPH0632833B2 (en) | 1987-09-30 | 1987-09-30 | Organic wastewater treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6490098A true JPS6490098A (en) | 1989-04-05 |
| JPH0632833B2 JPH0632833B2 (en) | 1994-05-02 |
Family
ID=17107521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62243689A Expired - Lifetime JPH0632833B2 (en) | 1987-09-30 | 1987-09-30 | Organic wastewater treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0632833B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0558421A1 (en) * | 1992-02-28 | 1993-09-01 | Bio Armor | Process and device for the depuration of animal excrements |
| US6406629B1 (en) | 1999-07-20 | 2002-06-18 | Zenon Environmental Inc. | Biological process for removing phosphorous involving a membrane filter |
| US6485645B1 (en) | 1999-07-20 | 2002-11-26 | Zenon Environmental Inc | Biological process for removing phosphorus involving a membrane filter |
| JP2012166117A (en) * | 2011-02-10 | 2012-09-06 | Kurita Water Ind Ltd | Sludge dewatering method |
-
1987
- 1987-09-30 JP JP62243689A patent/JPH0632833B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0558421A1 (en) * | 1992-02-28 | 1993-09-01 | Bio Armor | Process and device for the depuration of animal excrements |
| FR2687929A1 (en) * | 1992-02-28 | 1993-09-03 | Bio Armor | PROCESS FOR PURIFYING ANIMAL EXCRETION AND ITS DEVICE. |
| US6406629B1 (en) | 1999-07-20 | 2002-06-18 | Zenon Environmental Inc. | Biological process for removing phosphorous involving a membrane filter |
| US6485645B1 (en) | 1999-07-20 | 2002-11-26 | Zenon Environmental Inc | Biological process for removing phosphorus involving a membrane filter |
| JP2012166117A (en) * | 2011-02-10 | 2012-09-06 | Kurita Water Ind Ltd | Sludge dewatering method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0632833B2 (en) | 1994-05-02 |
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