JPS5784792A - Denitrification of organic waste water - Google Patents
Denitrification of organic waste waterInfo
- Publication number
- JPS5784792A JPS5784792A JP16037080A JP16037080A JPS5784792A JP S5784792 A JPS5784792 A JP S5784792A JP 16037080 A JP16037080 A JP 16037080A JP 16037080 A JP16037080 A JP 16037080A JP S5784792 A JPS5784792 A JP S5784792A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- nitrogen
- crude
- nitric
- day
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 4
- 239000010815 organic waste Substances 0.000 title abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 12
- 239000002351 wastewater Substances 0.000 abstract 7
- 229910052757 nitrogen Inorganic materials 0.000 abstract 6
- 229910017464 nitrogen compound Inorganic materials 0.000 abstract 3
- 150000002830 nitrogen compounds Chemical class 0.000 abstract 3
- 239000000203 mixture Substances 0.000 abstract 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N nitrous oxide Inorganic materials [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 abstract 2
- 238000005273 aeration Methods 0.000 abstract 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 230000003647 oxidation Effects 0.000 abstract 1
- 238000007254 oxidation reaction Methods 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000010802 sludge Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000006228 supernatant Substances 0.000 abstract 1
Landscapes
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
PURPOSE: To effectively remove nitrogen from waste water in simplfied operation, by removing nitrogen of nitrogen compounds, in the waste water outside the system by repetition of oxidation by aeration and reduction by maintaining the waste water under an anaerobic condition after introduction of crude waste water, in a gaseous state outside the system.
CONSTITUTION: In treatment of organic waste water containing nitrogen compounds which are irregularily discharged by small amount at high concentration in general, the waste water is aerated in the presence of active sludge until nitrogen in the nitrogen compounds is converted into a nitric or nitrous state. A next-day's part of crude waste water is added to at least a day's part of the nitrogen compound-cintng. organic waste water without inflow of oxygen, and the mixture being kept under an anaerobic condition is agitated. Thus, organic substances i the influent of the crude waste water are utilized as a hydrogen- donating source to reduce the nitric or nitrous nitrogen exsisting in the water. The reduced nitrogen is discharged in a gaseous state outside the system. After the reduction is continued for a certain period, the mixture is reaerated in the same way as aforementioned and let alone as such for a while. A part of supernatant is extracted. The same operation is repeated in succession.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16037080A JPS5784792A (en) | 1980-11-14 | 1980-11-14 | Denitrification of organic waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16037080A JPS5784792A (en) | 1980-11-14 | 1980-11-14 | Denitrification of organic waste water |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5784792A true JPS5784792A (en) | 1982-05-27 |
| JPH0123195B2 JPH0123195B2 (en) | 1989-05-01 |
Family
ID=15713501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16037080A Granted JPS5784792A (en) | 1980-11-14 | 1980-11-14 | Denitrification of organic waste water |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5784792A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62163798A (en) * | 1986-01-13 | 1987-07-20 | Meidensha Electric Mfg Co Ltd | Treatment of waste water |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS524650A (en) * | 1975-06-30 | 1977-01-13 | Tochigi Fuji Ind Co Ltd | Purifying method for polluted water |
| JPS5339652A (en) * | 1976-09-21 | 1978-04-11 | Kurita Water Ind Ltd | Treatment of filthy water |
| JPS5387571A (en) * | 1977-01-12 | 1978-08-02 | Sumitomo Jukikai Envirotech Kk | Device for treating organic waste water |
| JPS5390649A (en) * | 1977-01-19 | 1978-08-09 | Sumitomo Jukikai Envirotech Kk | Method of treating high concentration organic waste |
| JPS5518249A (en) * | 1978-07-25 | 1980-02-08 | Kawasaki Heavy Ind Ltd | Waste water treatment tank |
| JPS5573398A (en) * | 1978-11-30 | 1980-06-03 | Ebara Infilco Co Ltd | Biological denitrification and dephosphorization of waste water |
| JPS5588898A (en) * | 1978-12-27 | 1980-07-04 | Kubota Ltd | Water treating method |
-
1980
- 1980-11-14 JP JP16037080A patent/JPS5784792A/en active Granted
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS524650A (en) * | 1975-06-30 | 1977-01-13 | Tochigi Fuji Ind Co Ltd | Purifying method for polluted water |
| JPS5339652A (en) * | 1976-09-21 | 1978-04-11 | Kurita Water Ind Ltd | Treatment of filthy water |
| JPS5387571A (en) * | 1977-01-12 | 1978-08-02 | Sumitomo Jukikai Envirotech Kk | Device for treating organic waste water |
| JPS5390649A (en) * | 1977-01-19 | 1978-08-09 | Sumitomo Jukikai Envirotech Kk | Method of treating high concentration organic waste |
| JPS5518249A (en) * | 1978-07-25 | 1980-02-08 | Kawasaki Heavy Ind Ltd | Waste water treatment tank |
| JPS5573398A (en) * | 1978-11-30 | 1980-06-03 | Ebara Infilco Co Ltd | Biological denitrification and dephosphorization of waste water |
| JPS5588898A (en) * | 1978-12-27 | 1980-07-04 | Kubota Ltd | Water treating method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62163798A (en) * | 1986-01-13 | 1987-07-20 | Meidensha Electric Mfg Co Ltd | Treatment of waste water |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0123195B2 (en) | 1989-05-01 |
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