JPH0134677B2 - - Google Patents
Info
- Publication number
- JPH0134677B2 JPH0134677B2 JP29780585A JP29780585A JPH0134677B2 JP H0134677 B2 JPH0134677 B2 JP H0134677B2 JP 29780585 A JP29780585 A JP 29780585A JP 29780585 A JP29780585 A JP 29780585A JP H0134677 B2 JPH0134677 B2 JP H0134677B2
- Authority
- JP
- Japan
- Prior art keywords
- wastewater
- treatment
- carbonate
- biological treatment
- mlss
- 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
Links
- 239000002351 wastewater Substances 0.000 claims description 59
- 239000010802 sludge Substances 0.000 claims description 30
- 239000007788 liquid Substances 0.000 claims description 24
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 14
- 238000000926 separation method Methods 0.000 claims description 14
- 229910052791 calcium Inorganic materials 0.000 claims description 13
- 238000004090 dissolution Methods 0.000 claims description 11
- 150000003839 salts Chemical class 0.000 claims description 11
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical group O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 10
- 229910017604 nitric acid Inorganic materials 0.000 claims description 10
- 238000004065 wastewater treatment Methods 0.000 claims description 7
- 239000006227 byproduct Substances 0.000 claims description 5
- 239000011575 calcium Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 29
- 150000007524 organic acids Chemical class 0.000 description 15
- 239000005416 organic matter Substances 0.000 description 11
- 238000012360 testing method Methods 0.000 description 8
- 239000000852 hydrogen donor Substances 0.000 description 7
- 238000005273 aeration Methods 0.000 description 6
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 6
- 239000007787 solid Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003472 neutralizing effect Effects 0.000 description 3
- 235000005985 organic acids Nutrition 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000006228 supernatant Substances 0.000 description 3
- 230000008961 swelling Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 235000010216 calcium carbonate Nutrition 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 description 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 235000015097 nutrients Nutrition 0.000 description 2
- 230000033116 oxidation-reduction process Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- 241000902900 cellular organisms Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel 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
- Biological Treatment Of Waste Water (AREA)
- Activated Sludge Processes (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60297805A JPS62152597A (ja) | 1985-12-25 | 1985-12-25 | 廃水処理方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60297805A JPS62152597A (ja) | 1985-12-25 | 1985-12-25 | 廃水処理方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62152597A JPS62152597A (ja) | 1987-07-07 |
| JPH0134677B2 true JPH0134677B2 (ko) | 1989-07-20 |
Family
ID=17851394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60297805A Granted JPS62152597A (ja) | 1985-12-25 | 1985-12-25 | 廃水処理方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62152597A (ko) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2087833B1 (es) * | 1995-01-13 | 1997-05-01 | Hernandez Ernesto Garcia | Activador quimico biologico para la depuracion de aguas residuales. |
| FR2738234B1 (fr) * | 1995-08-29 | 1998-10-30 | Degremont | Procede d'elimination des composes azotes et de remineralisation d'eaux faiblement mineralisees |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054784A (ja) * | 1983-09-05 | 1985-03-29 | Kurita Water Ind Ltd | フツ素を含む有機性廃水の処理法 |
-
1985
- 1985-12-25 JP JP60297805A patent/JPS62152597A/ja active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6054784A (ja) * | 1983-09-05 | 1985-03-29 | Kurita Water Ind Ltd | フツ素を含む有機性廃水の処理法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62152597A (ja) | 1987-07-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |