CA2247409A1 - Treatment of waste liquor in a vertical shaft bioreactor - Google Patents
Treatment of waste liquor in a vertical shaft bioreactorInfo
- Publication number
- CA2247409A1 CA2247409A1 CA002247409A CA2247409A CA2247409A1 CA 2247409 A1 CA2247409 A1 CA 2247409A1 CA 002247409 A CA002247409 A CA 002247409A CA 2247409 A CA2247409 A CA 2247409A CA 2247409 A1 CA2247409 A1 CA 2247409A1
- Authority
- CA
- Canada
- Prior art keywords
- vessel
- waste liquor
- chamber
- liquor
- operatively
- 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
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
- B01D21/0084—Enhancing liquid-particle separation using the flotation principle
-
- 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
- B01D21/183—Construction of the scrapers or the driving mechanisms for settling tanks with multiple scraping mechanisms
-
- 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
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
- B01D21/2416—Liquid distributors with a plurality of feed points
-
- 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
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2433—Discharge mechanisms for floating particles
-
- 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
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- 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
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
- B01D21/2461—Positive-displacement pumps; Screw feeders; Trough conveyors
-
- 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
-
- 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
- C02F3/22—Activated sludge processes using circulation pipes
- C02F3/226—"Deep shaft" 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Physical Water Treatments (AREA)
Abstract
An improved apparatus for treating waste mixed liquor comprising a long vertical downcomer chamber (10), an adjacent long vertical riser chamber (12), a surface basin (14), said downcomer chamber (10) and said riser chamber (12) operatively communicating directly with each other at their lower ends and through said basin (14) at their upper ends to form a circulatory loop; means (28) for injecting an oxygen-containing gas in said downcomer (10) and riser chambers at depth; a flotation-sedimentation vessel (52) adjacent said surface basin (14); a first waste liquor influent conduit (20) opening into said riser chamber (12) at depth and operatively communicating with said vessel (52) to provide a first waste liquor influent from said vessel to said riser chamber;
a treated liquor effluent first conduit (34) opening into said riser chamber (12) and operatively in communication with said vessel (52) to provide a treated waste liquor first effluent to said vessel from said riser chamber;
the improvement comprising a treated waste liquor effluent second conduit (42) having an inlet opening into said surface basin (14) and operatively in communication with said vessel (52) to provide a treated waste liquor second effluent to said vessel from said surface basin (14), and flow control (38) and mixing means (40) to operatively provide said treated waste liquor first and second effluents in such intimate mixing of said first and said second effluents as to cause heterogeneous bubble nucleation thereof and produce a nucleated liquor. The apparatus provides for improved flocculation, flotation and settlement of solids.
a treated liquor effluent first conduit (34) opening into said riser chamber (12) and operatively in communication with said vessel (52) to provide a treated waste liquor first effluent to said vessel from said riser chamber;
the improvement comprising a treated waste liquor effluent second conduit (42) having an inlet opening into said surface basin (14) and operatively in communication with said vessel (52) to provide a treated waste liquor second effluent to said vessel from said surface basin (14), and flow control (38) and mixing means (40) to operatively provide said treated waste liquor first and second effluents in such intimate mixing of said first and said second effluents as to cause heterogeneous bubble nucleation thereof and produce a nucleated liquor. The apparatus provides for improved flocculation, flotation and settlement of solids.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/615,436 US5645726A (en) | 1996-03-14 | 1996-03-14 | Treatment of waste liquor in a vertical shaft bioreactor |
US08/615,436 | 1996-03-14 | ||
PCT/CA1997/000143 WO1997033831A2 (en) | 1996-03-14 | 1997-02-27 | Treatment of waste liquor in a vertical shaft bioreactor |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2247409A1 true CA2247409A1 (en) | 1997-09-18 |
CA2247409C CA2247409C (en) | 2003-01-07 |
Family
ID=24465356
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002247409A Expired - Lifetime CA2247409C (en) | 1996-03-14 | 1997-02-27 | Treatment of waste liquor in a vertical shaft bioreactor |
Country Status (4)
Country | Link |
---|---|
US (1) | US5645726A (en) |
AU (1) | AU1763397A (en) |
CA (1) | CA2247409C (en) |
WO (1) | WO1997033831A2 (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2748501A (en) | 1999-10-27 | 2001-05-08 | Schreiber Corporation, Inc. | Methods and apparatus for removing grit and grease from water |
US6468429B1 (en) | 2000-05-11 | 2002-10-22 | Noram Engineering And Constructors Ltd. | Apparatus and method for controlling liquor circulation flow in long vertical shaft bioreactors |
US6477886B1 (en) * | 2000-10-26 | 2002-11-12 | Ford Global Technologies, Inc. | Apparatus for measuring the amount of air entrained in a fluid |
EP1363857A2 (en) * | 2001-02-23 | 2003-11-26 | V.A.I. Ltd. | Methods and apparatus for biological treatment of waste waters |
US20050218074A1 (en) * | 2004-04-06 | 2005-10-06 | Pollock David C | Method and apparatus providing improved throughput and operating life of submerged membranes |
US6607671B2 (en) | 2001-08-15 | 2003-08-19 | Texaco Inc. | Reactor and solids settler for grey water treatment |
WO2004076608A2 (en) * | 2003-02-26 | 2004-09-10 | Georgia Tech Research Corporation | Bioreactor and methods for tissue growth and conditioning |
US7258788B2 (en) * | 2004-03-12 | 2007-08-21 | Noram Engineering And Constructors Ltd. | Circular clarifier apparatus and method |
DK200401180A (en) * | 2004-08-03 | 2006-02-04 | Ekeroth Lars | Process for carrying out continuous or periodically aerated, biological purification of water in a loop reactor and reactor for carrying out the process |
MX2008002633A (en) * | 2005-08-25 | 2008-09-26 | A2Be Carbon Capture Llc | Method, apparatus and system for biodiesel production from algae. |
US20090199904A1 (en) * | 2008-02-13 | 2009-08-13 | Babbitt Guy R | Low shear pumps for use with bioreactors |
US20130149755A1 (en) | 2008-11-06 | 2013-06-13 | Kiverdi ,Inc. | Use of oxyhydrogen microorganisms for non-photosynthetic carbon capture and conversion of inorganic and/or c1 carbon sources into useful organic compounds |
US20100261242A1 (en) | 2009-04-14 | 2010-10-14 | Harvey Jeffrey T | Static solid state bioreactor and method for using same |
ES2899980T3 (en) | 2009-11-06 | 2022-03-15 | Kiverdi Inc | Biological and chemical process that uses chemoautotrophic microorganisms for the chemosynthetic fixation of carbon dioxide and/or other inorganic carbon sources in organic compounds and the generation of additional useful products |
GB2476847A (en) * | 2010-01-06 | 2011-07-13 | Wrc Plc | Flotation treatment of liquids |
US9157058B2 (en) | 2011-12-14 | 2015-10-13 | Kiverdi, Inc. | Method and apparatus for growing microbial cultures that require gaseous electron donors, electron acceptors, carbon sources, or other nutrients |
CN102633383B (en) * | 2012-04-16 | 2013-06-26 | 扬州大学 | Deepwater circulating and enhanced coagulating sedimentation algae-removing water treatment system and method |
JP7302983B2 (en) * | 2019-02-15 | 2023-07-04 | 住友重機械エンバイロメント株式会社 | Scum scraper and sedimentation tank equipment |
CN110862199B (en) * | 2019-12-19 | 2021-11-16 | 华北水利水电大学 | Biological purification device and method for treating black and odorous water body in river channel |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IN141354B (en) * | 1973-05-16 | 1977-02-19 | Ici Ltd | |
GB1527731A (en) * | 1975-04-07 | 1978-10-11 | Ici Ltd | Sewage treatment-flotation apparatus |
GB1540065A (en) * | 1975-07-10 | 1979-02-07 | Ici Ltd | Aerobic biological treatment of wastewater |
GB1541569A (en) * | 1975-10-22 | 1979-03-07 | Ici Ltd | Treament of a liquid by circulation and gas contacting |
GB1573907A (en) * | 1976-05-14 | 1980-08-28 | Ici Ltd | Method and apparatus for the aerobic treatment of waste water |
CA1079422A (en) * | 1978-03-14 | 1980-06-10 | Eco-Research Limited | Flexible downcomer for vertical waste treatment apparatus |
EP0013819B1 (en) * | 1979-01-15 | 1982-11-10 | Imperial Chemical Industries Plc | Process and apparatus for treatment of wastewater |
US4376707A (en) * | 1979-05-21 | 1983-03-15 | Gambro Dialysatoren G.M.B.H. & Co. K.G. | Process for the removal of urea from blood wash fluids and blood |
EP0021570B1 (en) * | 1979-05-23 | 1983-10-05 | Imperial Chemical Industries Plc | Process and apparatus for the treatment of waste water |
CA1122728A (en) * | 1979-10-26 | 1982-04-27 | David C. I. Pollock | Long vertical shaft bioreactor with pressurized head tanks |
CA1114962A (en) * | 1979-10-26 | 1981-12-22 | Canadian Industries Limited | Long vertical shaft bioreactor of simplified design |
CA1114963A (en) * | 1979-10-26 | 1981-12-22 | Canadian Industries Limited | Means for separation of gas and solids from waste mixed liquor |
CA1114960A (en) * | 1979-10-26 | 1981-12-22 | Canadian Industries Limited | Method for the froth flotation separation and treatment of slowly biodegradable components in a waste treatment system |
CA1114961A (en) * | 1979-10-26 | 1981-12-22 | Canadian Industries Limited | Method for maintaining a constant gas to solids ratio in effluent from a long vertical shaft bioreactor |
CA1114965A (en) * | 1979-10-26 | 1981-12-22 | David C.I. Pollock | Long vertical shaft bioreactor with modified waste liquor injection |
CA1115433A (en) * | 1979-10-26 | 1981-12-29 | David C.I. Pollock | Method for protecting a bioreactor pressurized head tank against extreme surges of influent waste water |
EP0037659B1 (en) * | 1980-04-03 | 1984-08-01 | Imperial Chemical Industries Plc | Method and apparatus for the treatment of wastewater |
US5240598A (en) * | 1990-09-18 | 1993-08-31 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanical College | Microbubble generator for the transfer of oxygen to microbial inocula and microbubble generator immobilized cell reactor |
CA2101670A1 (en) * | 1992-08-17 | 1994-02-18 | Michael Ernest Garrett | Treatment of liquids |
-
1996
- 1996-03-14 US US08/615,436 patent/US5645726A/en not_active Expired - Lifetime
-
1997
- 1997-02-27 WO PCT/CA1997/000143 patent/WO1997033831A2/en active Application Filing
- 1997-02-27 CA CA002247409A patent/CA2247409C/en not_active Expired - Lifetime
- 1997-02-27 AU AU17633/97A patent/AU1763397A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US5645726A (en) | 1997-07-08 |
WO1997033831A3 (en) | 1997-11-06 |
AU1763397A (en) | 1997-10-01 |
WO1997033831A2 (en) | 1997-09-18 |
CA2247409C (en) | 2003-01-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKEX | Expiry |
Effective date: 20170227 |