CA1117669A - Process for the secondary treatment of wastewater - Google Patents
Process for the secondary treatment of wastewaterInfo
- Publication number
- CA1117669A CA1117669A CA000320880A CA320880A CA1117669A CA 1117669 A CA1117669 A CA 1117669A CA 000320880 A CA000320880 A CA 000320880A CA 320880 A CA320880 A CA 320880A CA 1117669 A CA1117669 A CA 1117669A
- Authority
- CA
- Canada
- Prior art keywords
- wastewater
- bacteria
- aeration
- bod
- shock
- 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 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 26
- 230000008569 process Effects 0.000 title claims abstract description 24
- 238000011282 treatment Methods 0.000 title claims abstract description 19
- 238000005273 aeration Methods 0.000 claims abstract description 41
- 241000894006 Bacteria Species 0.000 claims abstract description 22
- 239000007787 solid Substances 0.000 claims abstract description 18
- 238000009300 dissolved air flotation Methods 0.000 claims abstract description 12
- 238000005352 clarification Methods 0.000 claims abstract description 11
- 238000005188 flotation Methods 0.000 claims abstract description 10
- 235000013305 food Nutrition 0.000 claims abstract description 7
- 244000005700 microbiome Species 0.000 claims abstract description 6
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims description 14
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical group OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 235000015097 nutrients Nutrition 0.000 claims description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052698 phosphorus Inorganic materials 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000004065 wastewater treatment Methods 0.000 claims description 2
- 230000003472 neutralizing effect Effects 0.000 claims 1
- 230000035939 shock Effects 0.000 description 34
- 239000002028 Biomass Substances 0.000 description 11
- 238000011068 loading method Methods 0.000 description 10
- 230000014759 maintenance of location Effects 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 6
- 239000001301 oxygen Substances 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003518 caustics Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 241001148470 aerobic bacillus Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009299 dissolved gas flotation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000725101 Clea Species 0.000 description 1
- 229920000875 Dissolving pulp Polymers 0.000 description 1
- 101100536354 Drosophila melanogaster tant gene Proteins 0.000 description 1
- 241001269524 Dura Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 241001517310 Eria Species 0.000 description 1
- 101100284919 Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) higA1 gene Proteins 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005276 aerator Methods 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229940000425 combination drug Drugs 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 101150071624 higA gene Proteins 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004537 pulping Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Activated Sludge Processes (AREA)
- Physical Water Treatments (AREA)
- Biological Treatment Of Waste Water (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US87532778A | 1978-02-06 | 1978-02-06 | |
| US875,327 | 1978-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1117669A true CA1117669A (en) | 1982-02-02 |
Family
ID=25365605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000320880A Expired CA1117669A (en) | 1978-02-06 | 1979-02-06 | Process for the secondary treatment of wastewater |
Country Status (7)
| Country | Link |
|---|---|
| JP (1) | JPS54113962A (enrdf_load_stackoverflow) |
| CA (1) | CA1117669A (enrdf_load_stackoverflow) |
| DE (1) | DE2903548A1 (enrdf_load_stackoverflow) |
| FI (1) | FI790165A7 (enrdf_load_stackoverflow) |
| FR (1) | FR2416199A1 (enrdf_load_stackoverflow) |
| GB (1) | GB2013646B (enrdf_load_stackoverflow) |
| SE (1) | SE7900866L (enrdf_load_stackoverflow) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3028336C2 (de) * | 1980-07-25 | 1985-08-01 | Wilhelm Roediger Gmbh + Co, 6450 Hanau | Verfahren zum biologischen Reinigen von Abwasser |
| US4452699A (en) * | 1981-05-07 | 1984-06-05 | Shinryo Air Conditioning Co., Ltd. | Method of improving the SVI of mixed liquor in aeration tank |
| SE443930B (sv) * | 1981-05-08 | 1986-03-17 | Flaekt Ab | Anordning for rening av fororenad luft fran sprutbox med hjelp av biologisk nedbrytning |
| NL8204829A (nl) * | 1982-12-14 | 1984-07-02 | Schneider & Schuurman | Werkwijze en inrichting voor het zuiveren van afvalwater. |
| JPS6078696A (ja) * | 1983-10-04 | 1985-05-04 | Shinryo Air Conditioning Co Ltd | 曝気槽内混合液のｓｖｉ改良方法 |
| GB8607854D0 (en) * | 1986-03-27 | 1986-04-30 | Cjb Developments Ltd | Gas flotation system |
| FR2700323B1 (fr) * | 1993-01-14 | 1995-03-31 | Cee Qua Bio | Procédé de traitement biologique des eaux et dispositif mettant en Óoeuvre le procédé. |
| DE19848346C2 (de) * | 1998-10-21 | 2001-09-13 | Mueller Blanke Norbert | Flotationsverfahren zum Rückhalten von in Wasser suspendierten, Biomasse bildenden Mikroorganismen in einem Becken |
| WO2010058434A1 (en) * | 2008-11-24 | 2010-05-27 | Hawk Partners Sas | Vertical rector digestor for biological sludges |
| CN112243428B (zh) * | 2018-04-20 | 2023-07-18 | 先进创新者股份有限公司 | 处理废水和提供a类污泥的系统和方法 |
| CN110468033B (zh) | 2019-08-26 | 2020-12-08 | 同济大学 | 利用自持气浮强化产沼气的厌氧消化装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1478749A (fr) * | 1965-04-29 | 1967-04-28 | Purac Ab | Procédé de purification de l'eau au moyen d'une pluralité de traitements appliqués en série |
| DE2111442A1 (de) * | 1970-06-29 | 1972-01-05 | Aquanox Inc | Verfahren und Vorrichtung fuer die aerobe Behandlung von Abfallstoff |
| FR2116662A5 (enrdf_load_stackoverflow) * | 1970-12-02 | 1972-07-21 | Degremont | |
| US3864246A (en) * | 1973-01-24 | 1975-02-04 | Air Prod & Chem | Non-bulking activated sludge process |
| GB1527731A (en) * | 1975-04-07 | 1978-10-11 | Ici Ltd | Sewage treatment-flotation apparatus |
| JPS51139173A (en) * | 1975-05-27 | 1976-12-01 | Nitto Chem Ind Co Ltd | Activated sludge treatment |
-
1979
- 1979-01-18 FI FI790165A patent/FI790165A7/fi unknown
- 1979-01-30 GB GB7903226A patent/GB2013646B/en not_active Expired
- 1979-01-31 DE DE19792903548 patent/DE2903548A1/de not_active Withdrawn
- 1979-01-31 FR FR7902456A patent/FR2416199A1/fr active Granted
- 1979-02-01 SE SE7900866A patent/SE7900866L/ not_active Application Discontinuation
- 1979-02-06 JP JP1274379A patent/JPS54113962A/ja active Pending
- 1979-02-06 CA CA000320880A patent/CA1117669A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FI790165A7 (fi) | 1979-08-07 |
| GB2013646B (en) | 1982-07-21 |
| JPS54113962A (en) | 1979-09-05 |
| GB2013646A (en) | 1979-08-15 |
| SE7900866L (sv) | 1979-08-07 |
| DE2903548A1 (de) | 1979-08-09 |
| FR2416199B1 (enrdf_load_stackoverflow) | 1984-10-26 |
| FR2416199A1 (fr) | 1979-08-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |