JPS5527050A - Sludge concentration - Google Patents
Sludge concentrationInfo
- Publication number
- JPS5527050A JPS5527050A JP9938378A JP9938378A JPS5527050A JP S5527050 A JPS5527050 A JP S5527050A JP 9938378 A JP9938378 A JP 9938378A JP 9938378 A JP9938378 A JP 9938378A JP S5527050 A JPS5527050 A JP S5527050A
- Authority
- JP
- Japan
- Prior art keywords
- waste water
- sludge
- treated
- concentrate
- sedimentary
- 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 title abstract 5
- 239000002351 wastewater Substances 0.000 abstract 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 4
- 239000012141 concentrate Substances 0.000 abstract 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 2
- 229910001873 dinitrogen Inorganic materials 0.000 abstract 2
- 230000031018 biological processes and functions Effects 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 239000004576 sand Substances 0.000 abstract 1
- 239000013049 sediment Substances 0.000 abstract 1
- 239000010865 sewage Substances 0.000 abstract 1
Abstract
PURPOSE: Waste water sludge which is poorly sedimentary in biological treatment is treated by use of nitrogen gas generated by denitrification, thereby economically effecting floatation and concentration by simple equipment.
CONSTITUTION: Waste water such as sewage containing ammonia is treated by rotary disk or medium such as sand in a biological process 2. The process removes BOD from the waste water 1 and nitrizes ammonia to form nitrogen oxides. The treated waste water is then introduced in the settling equipment 3 from which sludge sediment and liquid mixture 4 is transferred to the mixer 5 to be mixed with branched waste water 6. Here, denitrification produces nitrogen gas, which is used to float and concentrate sludge which is poorly sedimentary in the process of sludge- float-concentrate process 7. Thus, the simple equipment economically concentrate sludge to clean waste water.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9938378A JPS5527050A (en) | 1978-08-15 | 1978-08-15 | Sludge concentration |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9938378A JPS5527050A (en) | 1978-08-15 | 1978-08-15 | Sludge concentration |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5527050A true JPS5527050A (en) | 1980-02-26 |
JPS6244997B2 JPS6244997B2 (en) | 1987-09-24 |
Family
ID=14245985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9938378A Granted JPS5527050A (en) | 1978-08-15 | 1978-08-15 | Sludge concentration |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5527050A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5527062A (en) * | 1978-08-16 | 1980-02-26 | Ebara Infilco Co Ltd | Concentration of sludge |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0516320Y2 (en) * | 1987-10-13 | 1993-04-28 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5152668A (en) * | 1974-11-01 | 1976-05-10 | Sato Zoki Co Ltd |
-
1978
- 1978-08-15 JP JP9938378A patent/JPS5527050A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5152668A (en) * | 1974-11-01 | 1976-05-10 | Sato Zoki Co Ltd |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5527062A (en) * | 1978-08-16 | 1980-02-26 | Ebara Infilco Co Ltd | Concentration of sludge |
JPS6244998B2 (en) * | 1978-08-16 | 1987-09-24 | Ebara Infilco |
Also Published As
Publication number | Publication date |
---|---|
JPS6244997B2 (en) | 1987-09-24 |
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