CA1078748A - Sludge scraper for arcuate sedimentation zone - Google Patents
Sludge scraper for arcuate sedimentation zoneInfo
- Publication number
- CA1078748A CA1078748A CA262,715A CA262715A CA1078748A CA 1078748 A CA1078748 A CA 1078748A CA 262715 A CA262715 A CA 262715A CA 1078748 A CA1078748 A CA 1078748A
- Authority
- CA
- Canada
- Prior art keywords
- bridge
- zone
- radial
- cable
- arcuate
- 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
- 238000004062 sedimentation Methods 0.000 title claims abstract description 166
- 239000010802 sludge Substances 0.000 title claims abstract description 74
- 239000007787 solid Substances 0.000 claims abstract description 164
- 238000013459 approach Methods 0.000 claims abstract description 26
- 238000004904 shortening Methods 0.000 claims abstract description 17
- 238000005192 partition Methods 0.000 claims description 139
- 238000005273 aeration Methods 0.000 claims description 72
- 230000033001 locomotion Effects 0.000 claims description 54
- 239000007789 gas Substances 0.000 claims description 37
- 239000007788 liquid Substances 0.000 claims description 35
- 239000000543 intermediate Substances 0.000 claims description 34
- 238000002156 mixing Methods 0.000 claims description 23
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 21
- 239000001301 oxygen Substances 0.000 claims description 21
- 229910052760 oxygen Inorganic materials 0.000 claims description 21
- 239000012530 fluid Substances 0.000 claims description 16
- 238000005352 clarification Methods 0.000 claims description 15
- 238000007599 discharging Methods 0.000 claims description 14
- 230000002441 reversible effect Effects 0.000 claims description 12
- 230000001154 acute effect Effects 0.000 claims description 11
- 238000009825 accumulation Methods 0.000 claims description 10
- 238000005304 joining Methods 0.000 claims description 10
- 238000012546 transfer Methods 0.000 claims description 10
- 238000004065 wastewater treatment Methods 0.000 claims description 8
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 7
- 229910001882 dioxygen Inorganic materials 0.000 claims description 7
- 239000002351 wastewater Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 2
- 230000008719 thickening Effects 0.000 claims 2
- 230000029087 digestion Effects 0.000 description 11
- 238000013461 design Methods 0.000 description 10
- 230000000875 corresponding effect Effects 0.000 description 8
- 230000035508 accumulation Effects 0.000 description 7
- 238000005660 chlorination reaction Methods 0.000 description 7
- 238000005189 flocculation Methods 0.000 description 6
- 230000016615 flocculation Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 5
- 230000000712 assembly Effects 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- 238000005276 aerator Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000008093 supporting effect Effects 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000001594 aberrant effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000005465 channeling Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 230000009850 completed effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
- -1 oxy- Chemical class 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 229940086255 perform Drugs 0.000 description 1
- 230000003334 potential effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000006228 supernatant Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
- B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
- B01D21/06—Settling tanks with single outlets for the separated liquid with moving scrapers with rotating scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/18—Construction of the scrapers or the driving mechanisms for settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/30—Control equipment
- B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
- Biological Treatment Of Waste Water (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/620,037 US3977974A (en) | 1975-10-06 | 1975-10-06 | Suspended sludge scraper for arcuate sedimentation zone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1078748A true CA1078748A (en) | 1980-06-03 |
Family
ID=24484321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA262,715A Expired CA1078748A (en) | 1975-10-06 | 1976-10-05 | Sludge scraper for arcuate sedimentation zone |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3977974A (enExample) |
| JP (1) | JPS52109755A (enExample) |
| CA (1) | CA1078748A (enExample) |
| DE (1) | DE2644925C3 (enExample) |
| GB (1) | GB1508538A (enExample) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4141831A (en) * | 1977-10-25 | 1979-02-27 | Union Carbide Corporation | Apparatus for removal of solids from a sedimentation zone |
| US4141832A (en) * | 1977-10-25 | 1979-02-27 | Union Carbide Corporation | Apparatus for removal of solids from a sedimentation zone |
| JPS61278310A (ja) * | 1985-06-04 | 1986-12-09 | Nippon Gesuidou Jigyodan | 汚泥かき寄せ機 |
| US4978447A (en) * | 1990-01-26 | 1990-12-18 | Ford W. Hall Company | Self-propelled apparatus for cleaning a water treatment tank |
| US6126824A (en) * | 1997-10-17 | 2000-10-03 | Baker Hughes Incorporated | Scum removal system for liquid treatment tank |
| US6601308B2 (en) * | 2002-01-02 | 2003-08-05 | Bahram Khoshnood | Ambient light collecting bow sight |
| CN103949449B (zh) * | 2014-04-28 | 2016-05-25 | 周玉红 | 一种小型刮泥机的刮刀安装装置 |
| CN108465275B (zh) * | 2018-03-30 | 2019-01-22 | 葛庆运 | 一种适应性强且方便维修的沉淀池刮泥机 |
| FR3153754A1 (fr) | 2023-10-05 | 2025-04-11 | Suez International | Décanteur de séparation solide/liquide et procédé de séparation solide/liquide associé |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2734634A (en) * | 1956-02-14 | knowles | ||
| US1879135A (en) * | 1929-03-22 | 1932-09-27 | Pacific Flush Tank Co | Sedimentation tank |
| US1892648A (en) * | 1929-06-01 | 1932-12-27 | Dorr Co Inc | Sedimentation device |
| AT246069B (de) * | 1962-05-10 | 1966-03-25 | Metallgesellschaft Ag | Vorrichtung zur Räumung sedimentierter Feststoffe aus längsdurchströmten Absitzbecken |
| US3312346A (en) * | 1964-12-29 | 1967-04-04 | Chicago Bridge & Iron Co | Sewage treatment plants with movable partition |
| US3890231A (en) * | 1973-04-02 | 1975-06-17 | Union Carbide Corp | Integral circular wastewater treatment plant |
-
1975
- 1975-10-06 US US05/620,037 patent/US3977974A/en not_active Expired - Lifetime
-
1976
- 1976-10-05 CA CA262,715A patent/CA1078748A/en not_active Expired
- 1976-10-05 JP JP11905376A patent/JPS52109755A/ja active Granted
- 1976-10-05 GB GB41204/76A patent/GB1508538A/en not_active Expired
- 1976-10-05 DE DE762644925A patent/DE2644925C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5528722B2 (enExample) | 1980-07-30 |
| GB1508538A (en) | 1978-04-26 |
| DE2644925A1 (de) | 1977-04-07 |
| DE2644925C3 (de) | 1979-03-01 |
| US3977974A (en) | 1976-08-31 |
| JPS52109755A (en) | 1977-09-14 |
| DE2644925B2 (de) | 1978-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |