JPS5695395A - Biological nitrifying and denitrifying apparatus for waste water - Google Patents
Biological nitrifying and denitrifying apparatus for waste waterInfo
- Publication number
- JPS5695395A JPS5695395A JP17221579A JP17221579A JPS5695395A JP S5695395 A JPS5695395 A JP S5695395A JP 17221579 A JP17221579 A JP 17221579A JP 17221579 A JP17221579 A JP 17221579A JP S5695395 A JPS5695395 A JP S5695395A
- Authority
- JP
- Japan
- Prior art keywords
- nitrifying
- lift pipe
- air lift
- nox
- reducing part
- 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
- 230000001546 nitrifying effect Effects 0.000 title abstract 6
- 239000002351 wastewater Substances 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 abstract 3
- 239000007787 solid Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 230000001174 ascending effect Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 239000000969 carrier Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To perform biological nitrification and denitrification of good efficiency with a single tank by dividing the inside of a treating tank provided with an air lift pipe to a nitrifying part and an NOx reducing part by means of a partition wall, and distributively flowing the outflow liquid from the air lift pipe into each part.
CONSTITUTION: In a biological nitrifying and denitrifying apparatus for waste water such as org. sewage and sewerage using solid particles such as active carbon as carriers, the inside of a treating tank 1 is divided to a nitrifying part 11 and an NOx reducing part 12, and an air lift pipe 5 is provided on one of them. The outflow liquid of this air lift pipe 5 is distributed to the respective parts 11, 12 by distribution pipes 7. If raw water is led to the NOx reducing part 12, it is flowed upward by the ascending force of the air bubbles of the air lift pipe 5. The greater part of the liquid and granular solids flow down from an overflow device 6 to the nitrifying part 11, and the rest flows again into the reducing part 12. During this time, NH4-N is reduced to NOx-N in the nitrifying part 11 and is further efficiently reduced to N2 gas in the reducing part 12.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17221579A JPS5695395A (en) | 1979-12-28 | 1979-12-28 | Biological nitrifying and denitrifying apparatus for waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17221579A JPS5695395A (en) | 1979-12-28 | 1979-12-28 | Biological nitrifying and denitrifying apparatus for waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5695395A true JPS5695395A (en) | 1981-08-01 |
Family
ID=15937719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17221579A Pending JPS5695395A (en) | 1979-12-28 | 1979-12-28 | Biological nitrifying and denitrifying apparatus for waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5695395A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9301791A (en) * | 1993-10-15 | 1995-05-01 | Biothane Systems Int Bv | Method of purifying waste water |
| JPH11277091A (en) * | 1998-03-20 | 1999-10-12 | Korea Inst Of Construction Technol | Apparatus and method for treating sewage/waste water by biological reaction |
-
1979
- 1979-12-28 JP JP17221579A patent/JPS5695395A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL9301791A (en) * | 1993-10-15 | 1995-05-01 | Biothane Systems Int Bv | Method of purifying waste water |
| JPH11277091A (en) * | 1998-03-20 | 1999-10-12 | Korea Inst Of Construction Technol | Apparatus and method for treating sewage/waste water by biological reaction |
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