JPS5471858A - Method of treating ammonia containing waste water by way of biological denitrification - Google Patents
Method of treating ammonia containing waste water by way of biological denitrificationInfo
- Publication number
- JPS5471858A JPS5471858A JP13974077A JP13974077A JPS5471858A JP S5471858 A JPS5471858 A JP S5471858A JP 13974077 A JP13974077 A JP 13974077A JP 13974077 A JP13974077 A JP 13974077A JP S5471858 A JPS5471858 A JP S5471858A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- denitrification
- nitrified
- nitrification
- ammonia
- 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
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract 12
- 238000000034 method Methods 0.000 title abstract 12
- 239000002351 wastewater Substances 0.000 title abstract 8
- 229910021529 ammonia Inorganic materials 0.000 title abstract 6
- 239000007788 liquid Substances 0.000 abstract 5
- 230000001546 nitrifying effect Effects 0.000 abstract 2
- 230000005494 condensation Effects 0.000 abstract 1
- 238000009833 condensation Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
Abstract
PURPOSE: To provide a method of treating ammonia containing waste water by way of biological denitrification, comprising the step of subjecting the waste water to nitrifying treatment such that ammonia is left in waste water, circulating a portion of the nitrified liquied to a first denitrification process, and after completely nitrifying the remaining portion of the nitrified liquid at a second nitrification process, subjecting the same to denitrification treatment at a second denitrification process, whereby it is enabled to lower the running cost of the system.
CONSTITUTION: Waste water 1 to be treated is introduced to a first denitrification process 7 together with sludge 6 restored from settling basin 4 after condensation and separation therein and a portion of nitrified liquid 11 supplied from a first nitrification process 8, so as to denitrify NO2 in the nitrification liquid by BOD components contained waste water 1. Ammonia contained in waste water 1 and the nitrified liquid is passed through the first denitrification process 7 as it is and introduced into a first nitrification process 8, where it is nitrified such that ammonia is left therein at a certain range of concentration (NO2 type nitrification). A portion of nitrified liquid 11 is recirculated to the first denitrification process 7, whereas its remaining portion is introduced to a second nitrification process 9, where residual ammonia is nitrified completely. Finally, at a second denitrification process 10, denitrification of waste water is completed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13974077A JPS6015400B2 (en) | 1977-11-21 | 1977-11-21 | Biological denitrification method for ammonia-containing wastewater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13974077A JPS6015400B2 (en) | 1977-11-21 | 1977-11-21 | Biological denitrification method for ammonia-containing wastewater |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5471858A true JPS5471858A (en) | 1979-06-08 |
JPS6015400B2 JPS6015400B2 (en) | 1985-04-19 |
Family
ID=15252264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13974077A Expired JPS6015400B2 (en) | 1977-11-21 | 1977-11-21 | Biological denitrification method for ammonia-containing wastewater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6015400B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04222378A (en) * | 1990-06-21 | 1992-08-12 | Mitsubishi Electric Corp | Box body for refrigerator |
-
1977
- 1977-11-21 JP JP13974077A patent/JPS6015400B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04222378A (en) * | 1990-06-21 | 1992-08-12 | Mitsubishi Electric Corp | Box body for refrigerator |
Also Published As
Publication number | Publication date |
---|---|
JPS6015400B2 (en) | 1985-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8500245D0 (en) | PROCEDURE FOR WASTE WASTE CLEANING BY USING ACTIVATED SLIDES | |
JPS5471858A (en) | Method of treating ammonia containing waste water by way of biological denitrification | |
JPS5471857A (en) | Method of treating ammonia containing waste water by way of biological denitrification | |
JPS5385947A (en) | Method of treating waste liquid containing nitrogen compounds | |
JPS532944A (en) | Process for treating organic dirty water | |
JPS547758A (en) | Method of treating waste water | |
JPS57110397A (en) | Treatment of fecal sewage | |
ATE1379T1 (en) | PROCESSES FOR NITRIFICATION AND DENITRIFICATION OF WASTEWATER. | |
JPS56100699A (en) | Treatment and device for waste water containing nitrogen | |
JPS5656293A (en) | Treatment of organic waste water and equipment therefor | |
JPS5212762A (en) | Method of treating waste water | |
JPS5613094A (en) | High degree treating method of organic waste water | |
JPH0722756B2 (en) | Biological denitrification and dephosphorization methods for wastewater | |
JPS565185A (en) | Treatment of waste water of low biochemical oxygen demand | |
JPS55114395A (en) | Treatment of excretion | |
JPS565181A (en) | Treatment of organic waste water | |
JPS532945A (en) | Process for treating dirty water | |
JPS6134879B2 (en) | ||
JPS53103653A (en) | Method of removing nitrogenous compound in waste water | |
FR2400489A1 (en) | Biological purification of waste water - includes oxygenation, degradation, nitrification and denitrification steps | |
JPS5485548A (en) | Method of treating waste water with activated sludge | |
JPS5715891A (en) | Treatment of high concentration waste liquid | |
JPS55119495A (en) | Treating method for waste water containing lignin | |
Henze et al. | Design of Combined Nitrification-Dentrification Plants(Bemessung von Kombinierten Nitrifikations-und Denitrifikationsanlagen) | |
JPS55132697A (en) | Method for treatment of water |