WO2007135481A3 - Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge - Google Patents

Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge Download PDF

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Publication number
WO2007135481A3
WO2007135481A3 PCT/IB2006/004044 IB2006004044W WO2007135481A3 WO 2007135481 A3 WO2007135481 A3 WO 2007135481A3 IB 2006004044 W IB2006004044 W IB 2006004044W WO 2007135481 A3 WO2007135481 A3 WO 2007135481A3
Authority
WO
WIPO (PCT)
Prior art keywords
solids
bowl
apd
centrate
centrifuge
Prior art date
Application number
PCT/IB2006/004044
Other languages
French (fr)
Other versions
WO2007135481A2 (en
Inventor
Robert B Carr
Original Assignee
Wagner Dev Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wagner Dev Inc filed Critical Wagner Dev Inc
Priority to JP2008542864A priority Critical patent/JP4976414B2/en
Priority to AU2006343994A priority patent/AU2006343994A1/en
Priority to EP06851233A priority patent/EP1996304A2/en
Priority to CN2006800522927A priority patent/CN101405065B/en
Priority to CA002632255A priority patent/CA2632255A1/en
Publication of WO2007135481A2 publication Critical patent/WO2007135481A2/en
Publication of WO2007135481A3 publication Critical patent/WO2007135481A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B3/00—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering
    • B04B3/02—Centrifuges with rotary bowls in which solid particles or bodies become separated by centrifugal force and simultaneous sifting or filtering discharging solid particles from the bowl by means coaxial with the bowl axis and moving to and fro, i.e. push-type centrifuges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/10—Centrifuges combined with other apparatus, e.g. electrostatic separators; Sets or systems of several centrifuges
    • 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
    • B01D61/147—Microfiltration
    • 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
    • B01D63/16—Rotary, reciprocated or vibrated modules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B11/00—Feeding, charging, or discharging bowls
    • B04B11/04—Periodical feeding or discharging; Control arrangements therefor
    • B04B11/05—Base discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/02—Specific process operations before starting the membrane separation process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/04—Specific process operations in the feed stream; Feed pretreatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2311/00—Details relating to membrane separation process operations and control
    • B01D2311/26—Further operations combined with membrane separation processes
    • B01D2311/2676—Centrifugal separation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2315/00—Details relating to the membrane module operation
    • B01D2315/02—Rotation or turning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2315/00—Details relating to the membrane module operation
    • B01D2315/14—Batch-systems

Abstract

In a system for combined centrifugation and microfiltration, retentate from a cross-flow microfilter (201) is fed to an automatic piston discharge (APD) centrifuge (210) for solids removal, thereby enhancing the efficiency of both processes. A solids-containing suspension (207) is fed into a tank (202) and then pumped (203) to a microporous membrane filter to decide whether to return the retentate (236) to the microfilter (201) or to divert the retentate by means of a valve (235) as feed (230) to the APD centrifuge (210). A turbidity or density meter (220) also can be installed on the centrate output of the APD centrifuge (210) to indicate when the APD bowl is full of solids, or to control a centrate pump (222) and to decide whether to return (224) the centrate to the retentate tank (202) by means of a valve (223) or to discharge (228) the centrate from the system. The APD centrifuge (210) includes a cylindrical bowl having a conical lower end with an opening through which feed liquid is injected. Solids separate from the feed liquid and accumulate along the inner surface of the bowl as the bowl rotates at high speed. A microfiltration membrane can be added to improve solids retention in the bowl and provide a filtered centrate. During solids discharge, a piston is urged downward along a vertical axis.. The downward movement of the piston forces accumulated solids from the bowl via the opening in the conical lower end thereof.
PCT/IB2006/004044 2005-12-05 2006-12-05 Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge WO2007135481A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2008542864A JP4976414B2 (en) 2005-12-05 2006-12-05 Recovery of solids using a crossflow microfilter and an automatic piston discharge centrifuge
AU2006343994A AU2006343994A1 (en) 2005-12-05 2006-12-05 Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge
EP06851233A EP1996304A2 (en) 2005-12-05 2006-12-05 Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge
CN2006800522927A CN101405065B (en) 2005-12-05 2006-12-05 Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge
CA002632255A CA2632255A1 (en) 2005-12-05 2006-12-05 Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US74255805P 2005-12-05 2005-12-05
US60/742,558 2005-12-05
US75638106P 2006-01-04 2006-01-04
US60/756,381 2006-01-04

Publications (2)

Publication Number Publication Date
WO2007135481A2 WO2007135481A2 (en) 2007-11-29
WO2007135481A3 true WO2007135481A3 (en) 2008-10-30

Family

ID=38723657

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/004044 WO2007135481A2 (en) 2005-12-05 2006-12-05 Solids recovery using cross-flow microfilter and automatic piston discharge centrifuge

Country Status (7)

Country Link
EP (1) EP1996304A2 (en)
JP (1) JP4976414B2 (en)
KR (1) KR20080077001A (en)
CN (1) CN101405065B (en)
AU (1) AU2006343994A1 (en)
CA (1) CA2632255A1 (en)
WO (1) WO2007135481A2 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008051499A1 (en) * 2008-10-13 2010-04-15 Gea Westfalia Separator Gmbh Process for reducing the pulp content of pulpy fruit juices
AU2009334385B2 (en) * 2008-12-29 2015-10-08 Wagner Development, Inc. Solids discharge centrifugal separator with disposable contact elements
KR101206453B1 (en) 2010-08-11 2012-12-03 네오텍스(주) Rotary filtering apparatus
ES2403140B1 (en) * 2011-04-28 2014-04-14 Riera Nadeu,S.A. SUPERCENTRIFUGE WITH AUTOMATIC SOLID EXTRACTION DEVICE
CN102773021A (en) * 2012-03-09 2012-11-14 北京建筑工程学院 Method for prolonging cleaning period of immersed ultra filtration membrane
CN112023503B (en) * 2020-09-30 2021-10-19 郑州航空工业管理学院 Sewage treatment device
CN115343127B (en) * 2022-08-15 2023-05-19 生态环境部南京环境科学研究所 Pretreatment device and pretreatment method for detecting residual agricultural chemicals

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3533306A1 (en) * 1985-09-18 1987-03-26 Adolf Reiter Process for separating and clear filtration of suspensions and apparatus therefor
US4915844A (en) * 1988-02-25 1990-04-10 Nitto Denko Corporation Liquid-solid particle separation process
US5795489A (en) * 1994-12-02 1998-08-18 Bristol-Myers Squibb Company Centrifugal filtration method
EP1028163A1 (en) * 1999-02-10 2000-08-16 Filtrox AG Crossflow microfiltration process and apparatus for liquids
US20020017483A1 (en) * 2000-03-21 2002-02-14 Chesner Warren Howard Mobile floating water treatment vessel
US20030127391A1 (en) * 2001-07-26 2003-07-10 Craft Frank S. Method for treatment of circulating cooling water
WO2003086641A1 (en) * 2002-04-12 2003-10-23 Wagner Development, Inc. Centrifuge with solids discharge using a scraper or piston
US20050233882A1 (en) * 2004-04-14 2005-10-20 Wagner Development, Inc. Conical piston solids discharge centrifugal separator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5493267A (en) * 1977-12-29 1979-07-24 Shin Meiwa Ind Co Ltd Sentrifugal separator
FR2567767B1 (en) * 1984-07-17 1986-11-07 Comp Generale Electricite DEVICE FOR TAKING THE LIQUID PHASE FROM A SUSPENSION

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3533306A1 (en) * 1985-09-18 1987-03-26 Adolf Reiter Process for separating and clear filtration of suspensions and apparatus therefor
US4915844A (en) * 1988-02-25 1990-04-10 Nitto Denko Corporation Liquid-solid particle separation process
US5795489A (en) * 1994-12-02 1998-08-18 Bristol-Myers Squibb Company Centrifugal filtration method
EP1028163A1 (en) * 1999-02-10 2000-08-16 Filtrox AG Crossflow microfiltration process and apparatus for liquids
US20020017483A1 (en) * 2000-03-21 2002-02-14 Chesner Warren Howard Mobile floating water treatment vessel
US20030127391A1 (en) * 2001-07-26 2003-07-10 Craft Frank S. Method for treatment of circulating cooling water
WO2003086641A1 (en) * 2002-04-12 2003-10-23 Wagner Development, Inc. Centrifuge with solids discharge using a scraper or piston
US6776752B2 (en) * 2002-04-12 2004-08-17 Wagner Development, Inc. Automatic tube bowl centrifuge for centrifugal separation of liquids and solids with solids discharge using a scraper or piston
US20050233882A1 (en) * 2004-04-14 2005-10-20 Wagner Development, Inc. Conical piston solids discharge centrifugal separator

Also Published As

Publication number Publication date
AU2006343994A1 (en) 2007-11-29
CA2632255A1 (en) 2007-11-29
JP2009518161A (en) 2009-05-07
JP4976414B2 (en) 2012-07-18
CN101405065A (en) 2009-04-08
CN101405065B (en) 2012-05-30
WO2007135481A2 (en) 2007-11-29
KR20080077001A (en) 2008-08-20
EP1996304A2 (en) 2008-12-03

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