JPS6485197A - Water-treating process - Google Patents
Water-treating processInfo
- Publication number
- JPS6485197A JPS6485197A JP24161687A JP24161687A JPS6485197A JP S6485197 A JPS6485197 A JP S6485197A JP 24161687 A JP24161687 A JP 24161687A JP 24161687 A JP24161687 A JP 24161687A JP S6485197 A JPS6485197 A JP S6485197A
- Authority
- JP
- Japan
- Prior art keywords
- active sludge
- bod
- inclusion
- immobilized
- tank
- 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 abstract 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 2
- 229910052698 phosphorus Inorganic materials 0.000 abstract 2
- 239000011574 phosphorus Substances 0.000 abstract 2
- 229920000642 polymer Polymers 0.000 abstract 2
- 239000003643 water by type Substances 0.000 abstract 2
- 238000012851 eutrophication Methods 0.000 abstract 1
- 239000000852 hydrogen donor Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- 239000002351 wastewater Substances 0.000 abstract 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE:To prevent eutrophication of closed or semi-closed waters such as lakes and deep bays due to nitrogen and phosphorus present in the sewage and waste water discharged into said waters, by mixing an active sludge which has been inclusion-immobilized upon a polymer with original water to be treated, thereby raising a BOD-volume load in a treatment for exposure to air. CONSTITUTION:An active sludge which has been inclusion-immobilized fixed upon a polymer such as PVA is introduced into a tank 2 for exposure to air and mixed therein with original water to be treated, and the BOD-volume load is maintained at a value as high as 2-10kg- BOD/m<3>.day. As a result, most of the biochemically oxygen-demanding components (BOD components) in the original water are decomposed by this active sludge and part of them are adsorbed onto the active sludge. Subsequently, this inclusion-immobilized active sludge having BOD components adsorbed thereonto is introduced into a tank 10 for denitrification and mixed therein with original water to be treated, and the adsorbed BOD components are utilized as a hydrogen donor for denitrification to reduce NO3-N to N2. The resulting inclusion-immobilized active sludge is recovered from the water which has undergone the denitrification treatment, and is introduced into a tank 18 for anaerobic dephosphorization and mixed therein with an active sludge. This inclusion-immobilized active sludge is allowed to release phosphorus and then returned to the tank 2 for exposure to air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24161687A JPH07115026B2 (en) | 1987-09-25 | 1987-09-25 | Water treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24161687A JPH07115026B2 (en) | 1987-09-25 | 1987-09-25 | Water treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6485197A true JPS6485197A (en) | 1989-03-30 |
| JPH07115026B2 JPH07115026B2 (en) | 1995-12-13 |
Family
ID=17076975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24161687A Expired - Lifetime JPH07115026B2 (en) | 1987-09-25 | 1987-09-25 | Water treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07115026B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6664424B2 (en) | 1998-07-01 | 2003-12-16 | Warner-Lambert Company | Stereoisomers with high affinity for adrenergic receptors |
| US7232837B2 (en) | 1999-06-29 | 2007-06-19 | Mcneil-Ppc, Inc. | Stereoisomers with high affinity for adrenergic receptors |
| CN105293715A (en) * | 2015-07-03 | 2016-02-03 | 重庆大学 | Method for controlling water body eutrophication by utilizing immobilized white-rot fungi, and application of method |
| CN116786094A (en) * | 2023-07-26 | 2023-09-22 | 山东省煤田地质规划勘察研究院 | Sewage plant tail water advanced nitrogen and phosphorus removal filler based on water supply plant sludge, preparation method and sewage plant tail water advanced treatment system |
-
1987
- 1987-09-25 JP JP24161687A patent/JPH07115026B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6664424B2 (en) | 1998-07-01 | 2003-12-16 | Warner-Lambert Company | Stereoisomers with high affinity for adrenergic receptors |
| US7232837B2 (en) | 1999-06-29 | 2007-06-19 | Mcneil-Ppc, Inc. | Stereoisomers with high affinity for adrenergic receptors |
| CN105293715A (en) * | 2015-07-03 | 2016-02-03 | 重庆大学 | Method for controlling water body eutrophication by utilizing immobilized white-rot fungi, and application of method |
| CN116786094A (en) * | 2023-07-26 | 2023-09-22 | 山东省煤田地质规划勘察研究院 | Sewage plant tail water advanced nitrogen and phosphorus removal filler based on water supply plant sludge, preparation method and sewage plant tail water advanced treatment system |
| CN116786094B (en) * | 2023-07-26 | 2023-12-29 | 山东省煤田地质规划勘察研究院 | Sewage plant tail water advanced nitrogen and phosphorus removal filler based on water supply plant sludge, preparation method and sewage plant tail water advanced treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07115026B2 (en) | 1995-12-13 |
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