CA2564007A1 - Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials - Google Patents
Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials Download PDFInfo
- Publication number
- CA2564007A1 CA2564007A1 CA 2564007 CA2564007A CA2564007A1 CA 2564007 A1 CA2564007 A1 CA 2564007A1 CA 2564007 CA2564007 CA 2564007 CA 2564007 A CA2564007 A CA 2564007A CA 2564007 A1 CA2564007 A1 CA 2564007A1
- Authority
- CA
- Canada
- Prior art keywords
- membrane bioreactor
- treatment vessel
- screen
- solids
- hydrocyclone
- 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
- 239000012528 membrane Substances 0.000 title claims abstract 24
- 238000001914 filtration Methods 0.000 title claims 3
- 239000011368 organic material Substances 0.000 title abstract 2
- 239000010802 sludge Substances 0.000 claims abstract 11
- 238000000034 method Methods 0.000 claims abstract 10
- 239000012530 fluid Substances 0.000 claims abstract 3
- 239000002699 waste material Substances 0.000 claims abstract 2
- 239000007787 solid Substances 0.000 claims 11
- 239000000758 substrate Substances 0.000 claims 5
- 239000000463 material Substances 0.000 claims 3
- 239000012510 hollow fiber Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 239000012466 permeate Substances 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000029087 digestion Effects 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/145—Ultrafiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/14—Ultrafiltration; Microfiltration
- B01D61/18—Apparatus therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/024—Hollow fibre modules with a single potted end
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
- B01D65/08—Prevention of membrane fouling or of concentration polarisation
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F3/1205—Particular type of activated sludge processes
- C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
-
- 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
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/60—Specific sensors or sensor arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/90—Additional auxiliary systems integrated with the module or apparatus
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2315/00—Details relating to the membrane module operation
- B01D2315/06—Submerged-type; Immersion type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/04—Backflushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/18—Use of gases
- B01D2321/185—Aeration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
- B01D2321/20—By influencing the flow
- B01D2321/2033—By influencing the flow dynamically
- B01D2321/2058—By influencing the flow dynamically by vibration of the membrane, e.g. with an actuator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/02—Hollow fibre modules
- B01D63/04—Hollow fibre modules comprising multiple hollow fibre assemblies
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/04—Oxidation reduction potential [ORP]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/24—Separation of coarse particles, e.g. by using sieves or screens
-
- 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
Abstract
The invention relates to a membrane bioreactor process combined with an advanced biological sludge digestion process that provides significant improvements in sludge digestion by reducing the costs and resources required for disposing of digested sludge. The offline treatment vessel is used to solubilize the organic material by operating in a very low oxygen environment.
Digested process fluid is transferred back to the membrane bioreactor. The processes and apparatus substantially reduce the production of waste sludge.
Digested process fluid is transferred back to the membrane bioreactor. The processes and apparatus substantially reduce the production of waste sludge.
Claims (10)
1. An apparatus for filtering a liquid containing solids, the apparatus comprising:
a membrane bioreactor comprising at least one membrane module, the membrane module comprising a plurality of porous membranes, wherein the membrane module is configured such that, in operation, a substrate comprising an activated sludge is contacted with outer surfaces of the membranes, and a treated water is removed from lumens of the membranes; and a biological sludge treatment vessel, wherein the biological sludge vessel is configured to operate in an anaerobic environment wherein a process fluid is digested, wherein at least a portion of the digested process fluid is transferred to the membrane bioreactor, and wherein at least a portion of the substrate in the membrane bioreactor is transferred to the biological sludge treatment vessel.
a membrane bioreactor comprising at least one membrane module, the membrane module comprising a plurality of porous membranes, wherein the membrane module is configured such that, in operation, a substrate comprising an activated sludge is contacted with outer surfaces of the membranes, and a treated water is removed from lumens of the membranes; and a biological sludge treatment vessel, wherein the biological sludge vessel is configured to operate in an anaerobic environment wherein a process fluid is digested, wherein at least a portion of the digested process fluid is transferred to the membrane bioreactor, and wherein at least a portion of the substrate in the membrane bioreactor is transferred to the biological sludge treatment vessel.
2. The apparatus of claim 1, further comprising:
a screen, wherein the screen is positioned between the membrane bioreactor and the biological sludge treatment vessel, wherein the screen is configured to remove inert materials in an outflow from the membrane bioreactor.
a screen, wherein the screen is positioned between the membrane bioreactor and the biological sludge treatment vessel, wherein the screen is configured to remove inert materials in an outflow from the membrane bioreactor.
3. The apparatus of claim 2, wherein the screen comprises openings having an average size in a longest dimension of about 200 µm to about 300µm.
4. The apparatus of claim 1, further comprising:
a hydrocyclone, wherein the hydrocyclone is positioned between the membrane bioreactor and the biological sludge treatment vessel, wherein the hydrocyclone is configured to remove inert materials in an outflow from the membrane bioreactor.
a hydrocyclone, wherein the hydrocyclone is positioned between the membrane bioreactor and the biological sludge treatment vessel, wherein the hydrocyclone is configured to remove inert materials in an outflow from the membrane bioreactor.
5. The apparatus of claim 2, further comprising:
a hydrocyclone, wherein the hydrocyclone is positioned between the screen and the biological sludge treatment vessel, wherein the hydrocyclone is configured to remove inert materials in an outflow from the membrane bioreactor.
a hydrocyclone, wherein the hydrocyclone is positioned between the screen and the biological sludge treatment vessel, wherein the hydrocyclone is configured to remove inert materials in an outflow from the membrane bioreactor.
6. The apparatus of claim 1, further comprising:
a surge tank, wherein the surge tank is configured to receive an outflow from the membrane bioreactor.
a surge tank, wherein the surge tank is configured to receive an outflow from the membrane bioreactor.
7. The apparatus of claim 1, further comprising:
an auxiliary screen, wherein the screen comprises openings having an average size in a longest dimension of from about 6 mm to about 25 mm.
an auxiliary screen, wherein the screen comprises openings having an average size in a longest dimension of from about 6 mm to about 25 mm.
8. A method for treating an influent stream comprising a digestible waste, the method comprising:
filtering a mixed liquor in the membrane bioreactor, wherein the mixed liquor is contacted with outer surfaces of a plurality of porous hollow fiber membranes, and wherein a permeate is removed from lumens of the membranes;
removing biological solids from the membrane bioreactor by recycling a substrate containing biological solids to an offline treatment vessel via a recycle loop, whereby a preselected concentration of biological solids is maintained within the membrane bioreactor;
digesting biological solids in the offline treatment vessel; and conducting an effluent stream from the offline treatment vessel to the membrane bioreactor, wherein the effluent stream comprises at least a portion of the mixed liquor.
filtering a mixed liquor in the membrane bioreactor, wherein the mixed liquor is contacted with outer surfaces of a plurality of porous hollow fiber membranes, and wherein a permeate is removed from lumens of the membranes;
removing biological solids from the membrane bioreactor by recycling a substrate containing biological solids to an offline treatment vessel via a recycle loop, whereby a preselected concentration of biological solids is maintained within the membrane bioreactor;
digesting biological solids in the offline treatment vessel; and conducting an effluent stream from the offline treatment vessel to the membrane bioreactor, wherein the effluent stream comprises at least a portion of the mixed liquor.
9. The method of claim 8, wherein the step of removing biological solids further comprises the step of passing the substrate containing biological solids through a hydrocyclone, whereby inert solids are removed, wherein the hydrocyclone is part of the recycle loop.
10. The method of claim 8, wherein the step of removing biological solids further comprises the step of passing the substrate containing biological solids through a screen, whereby inert solids are removed, wherein the screen is part of the recycle loop.
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US56482704P | 2004-04-22 | 2004-04-22 | |
US60/564,827 | 2004-04-22 | ||
US63858804P | 2004-12-22 | 2004-12-22 | |
US60/638,588 | 2004-12-22 | ||
US65366205P | 2005-02-16 | 2005-02-16 | |
US60/653,662 | 2005-02-16 | ||
PCT/US2005/010108 WO2005107929A2 (en) | 2004-04-22 | 2005-03-25 | Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2564007A1 true CA2564007A1 (en) | 2005-11-17 |
CA2564007C CA2564007C (en) | 2011-05-31 |
Family
ID=35320753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA 2564007 Expired - Fee Related CA2564007C (en) | 2004-04-22 | 2005-03-25 | Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials |
Country Status (8)
Country | Link |
---|---|
US (2) | US7387723B2 (en) |
EP (2) | EP1747058A4 (en) |
JP (2) | JP2007535398A (en) |
CN (1) | CN101426565B (en) |
AU (2) | AU2005240524C1 (en) |
CA (1) | CA2564007C (en) |
TW (1) | TW200540125A (en) |
WO (1) | WO2005107929A2 (en) |
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-
2005
- 2005-03-25 JP JP2007509482A patent/JP2007535398A/en active Pending
- 2005-03-25 EP EP05746310A patent/EP1747058A4/en not_active Withdrawn
- 2005-03-25 CA CA 2564007 patent/CA2564007C/en not_active Expired - Fee Related
- 2005-03-25 WO PCT/US2005/010108 patent/WO2005107929A2/en active Application Filing
- 2005-03-25 AU AU2005240524A patent/AU2005240524C1/en not_active Ceased
- 2005-03-25 CN CN2005800208723A patent/CN101426565B/en not_active Expired - Fee Related
- 2005-03-25 EP EP20110157085 patent/EP2380854A3/en not_active Withdrawn
- 2005-04-15 TW TW94112073A patent/TW200540125A/en unknown
- 2005-04-20 US US11/110,148 patent/US7387723B2/en not_active Expired - Fee Related
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2008
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EP1747058A4 (en) | 2009-09-30 |
CN101426565A (en) | 2009-05-06 |
JP2007535398A (en) | 2007-12-06 |
EP2380854A3 (en) | 2012-07-04 |
WO2005107929A3 (en) | 2009-04-16 |
JP2009090290A (en) | 2009-04-30 |
EP2380854A2 (en) | 2011-10-26 |
AU2005240524B2 (en) | 2009-08-27 |
CN101426565B (en) | 2012-04-18 |
AU2009203198A1 (en) | 2009-08-20 |
US20090020475A1 (en) | 2009-01-22 |
US20060201876A1 (en) | 2006-09-14 |
AU2009203198B2 (en) | 2010-12-16 |
AU2005240524C1 (en) | 2009-12-24 |
US7387723B2 (en) | 2008-06-17 |
CA2564007C (en) | 2011-05-31 |
TW200540125A (en) | 2005-12-16 |
EP1747058A2 (en) | 2007-01-31 |
WO2005107929A2 (en) | 2005-11-17 |
AU2005240524A1 (en) | 2005-11-17 |
US7718065B2 (en) | 2010-05-18 |
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