JPH0510997B2 - - Google Patents
Info
- Publication number
- JPH0510997B2 JPH0510997B2 JP59251184A JP25118484A JPH0510997B2 JP H0510997 B2 JPH0510997 B2 JP H0510997B2 JP 59251184 A JP59251184 A JP 59251184A JP 25118484 A JP25118484 A JP 25118484A JP H0510997 B2 JPH0510997 B2 JP H0510997B2
- Authority
- JP
- Japan
- Prior art keywords
- sludge
- activated sludge
- accelerator
- sedimentation
- aeration 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.)
- Expired - Lifetime
Links
- 239000010802 sludge Substances 0.000 claims description 113
- 238000004062 sedimentation Methods 0.000 claims description 42
- 238000000926 separation method Methods 0.000 claims description 39
- 238000005273 aeration Methods 0.000 claims description 38
- 239000000725 suspension Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- 238000004064 recycling Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 9
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 4
- 238000005188 flotation Methods 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000008213 purified water Substances 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000287828 Gallus gallus Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Activated Sludge Processes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59251184A JPS61129095A (ja) | 1984-11-27 | 1984-11-27 | 汚泥沈降促進材の循環使用方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59251184A JPS61129095A (ja) | 1984-11-27 | 1984-11-27 | 汚泥沈降促進材の循環使用方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61129095A JPS61129095A (ja) | 1986-06-17 |
| JPH0510997B2 true JPH0510997B2 (fi) | 1993-02-12 |
Family
ID=17218928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59251184A Granted JPS61129095A (ja) | 1984-11-27 | 1984-11-27 | 汚泥沈降促進材の循環使用方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61129095A (fi) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0688031B2 (ja) * | 1989-12-05 | 1994-11-09 | 新日本製鐵株式会社 | 生物学的処理方法 |
| JP3478321B2 (ja) | 1997-03-14 | 2003-12-15 | 栗田工業株式会社 | 活性汚泥沈降促進剤、およびそれを用いた排水の活性汚泥処理方法 |
-
1984
- 1984-11-27 JP JP59251184A patent/JPS61129095A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61129095A (ja) | 1986-06-17 |
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