GB2392677A - A method for preparing a homogenous cellulosic product from cellulosic waste materials - Google Patents

A method for preparing a homogenous cellulosic product from cellulosic waste materials

Info

Publication number
GB2392677A
GB2392677A GB0327498A GB0327498A GB2392677A GB 2392677 A GB2392677 A GB 2392677A GB 0327498 A GB0327498 A GB 0327498A GB 0327498 A GB0327498 A GB 0327498A GB 2392677 A GB2392677 A GB 2392677A
Authority
GB
United Kingdom
Prior art keywords
materials
vessel
pressure
agitating
purging
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
Application number
GB0327498A
Other versions
GB0327498D0 (en
GB2392677B (en
Inventor
Michael H Eley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
University of Alabama UA
University of Alabama in Huntsville
Original Assignee
University of Alabama UA
University of Alabama in Huntsville
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 University of Alabama UA, University of Alabama in Huntsville filed Critical University of Alabama UA
Publication of GB0327498D0 publication Critical patent/GB0327498D0/en
Publication of GB2392677A publication Critical patent/GB2392677A/en
Application granted granted Critical
Publication of GB2392677B publication Critical patent/GB2392677B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D21C5/02—Working-up waste paper
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L11/00—Methods specially adapted for refuse
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/0075—Disposal of medical waste
    • 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
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Processing Of Solid Wastes (AREA)
  • Paper (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

A method for treating diverse pulp and paper materials, including such products contained in municipal solid waste and biohazardous wastes, to produce a homogenous cellulosic product comprises the steps of feeding diverse pulp and paper materials into a vessel, introducing steam into the vessel while agitating the materials, purging the gases from the vessel while agitating the materials, sealing the vessel so that the vessel is pressure tight, saturating the materials with steam at sufficient temperature and pressure to expand the physical and chemical structure of the materials, while agitating the materials, depressurizing the vessel to further enhance the physical and chemical expansion of the materials, and discharging the processed products. Alternatively, the method can be performed without purging the gases, if the temperature in the range of about 140{C to about 160{C. and the pressure is in the range of about 275 to 450 kPa. During the optional purging step, during the depressurization step, and during the optional evacuation step, volatile organic compounds and other air pollutants can be captured and treated. The temperature, pressure, and process time is more than sufficient to decontaminate and sterilize biohazardous laboratory and medical wastes.
GB0327498A 2001-10-22 2001-10-22 A method for preparing a homogenous cellulosic product from cellulosic waste materials Expired - Fee Related GB2392677B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2001/050049 WO2003035970A1 (en) 2001-10-22 2001-10-22 A method for preparing a homogenous cellulosic product from cellulosic waste materials

Publications (3)

Publication Number Publication Date
GB0327498D0 GB0327498D0 (en) 2003-12-31
GB2392677A true GB2392677A (en) 2004-03-10
GB2392677B GB2392677B (en) 2004-12-01

Family

ID=21743161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0327498A Expired - Fee Related GB2392677B (en) 2001-10-22 2001-10-22 A method for preparing a homogenous cellulosic product from cellulosic waste materials

Country Status (9)

Country Link
EP (1) EP1438459A1 (en)
JP (1) JP4061268B2 (en)
KR (1) KR100711659B1 (en)
CN (1) CN100489191C (en)
AU (1) AU2009200412A1 (en)
CA (1) CA2464090C (en)
GB (1) GB2392677B (en)
NZ (1) NZ533075A (en)
WO (1) WO2003035970A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2456074A (en) * 2007-01-05 2009-07-08 Sterecycle Ltd Process and apparatus for waste treatment
GB2472599A (en) * 2009-08-11 2011-02-16 Sterecycle Ltd Thermal treatment of waste

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7967877B2 (en) 2003-11-13 2011-06-28 Biomass Worldwide Group Limited Biomass energy product and processing method
US20080206094A1 (en) * 2004-08-11 2008-08-28 Holloway Clifford C Method and Apparatus for Collection and Treatment of Encapsulated Waste
US8728802B2 (en) 2006-02-15 2014-05-20 Biomass Worldwide Group Limited Angled reaction vessel
US7745208B2 (en) 2006-02-15 2010-06-29 Noll Anthony P Angled reaction vessel
US7497392B2 (en) 2006-07-17 2009-03-03 Alliance Technology Group, Inc. Process and apparatus for transforming waste materials into fuel
GB2463314A (en) * 2008-09-11 2010-03-17 Sterecycle Ltd Process for municipal solid waste treatment
US8287651B2 (en) 2008-09-17 2012-10-16 Greenfield Ethanol Inc. Cellulose pretreatment process
CA2738886C (en) 2009-01-16 2012-02-21 Greenfield Ethanol Inc. Removal of inhibitory compounds during pre-treatment of lignocellulosic biomass
JP2012149847A (en) * 2011-01-20 2012-08-09 Otake Kaihatsu:Kk Far infrared-ray heating dryer with autoclave function
GB2489207B (en) 2011-03-14 2014-02-26 Zystur Ltd Waste treatment
ES2606611T3 (en) 2011-07-15 2017-03-24 Greenfield Specialty Alcohols Inc. Biomass conditioning for improved release of C5 / C6 sugars before fermentation
ITTO20111090A1 (en) * 2011-11-28 2013-05-29 Fater Spa EQUIPMENT AND PROCEDURE FOR THE RECYCLING OF ABSORBENT SANITARY PRODUCTS
CN102615087B (en) * 2012-03-15 2014-12-10 上海泰伍科新能源科技有限公司 Method and equipment for obtaining high-quality solid fuel from solid wastes
US11458414B2 (en) 2013-10-13 2022-10-04 Synergy Burcell Technologies, Llc Methods and apparatus utilizing vacuum for breaking organic cell walls
EP3138677B1 (en) * 2013-10-21 2020-03-18 Re-Match (UK) Limited Process for separating infill obtainable from a synthetic turf product
US9353476B2 (en) * 2014-04-18 2016-05-31 Georgia-Pacific Containerboard Llc Method for recycling waste material with reduced odor emission
GB201521624D0 (en) * 2015-12-08 2016-01-20 Fiberight Ltd Waste processing
CN115055253A (en) * 2022-03-25 2022-09-16 安徽农业大学 Raw material pretreatment device and method for producing natural polysaccharide-based medical antibacterial hydrocolloid dressing

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB809329A (en) * 1954-04-14 1959-02-25 Edward Joseph Poitras Improvements in or relating to steam sterilization method and apparatus
US5217688A (en) * 1991-01-25 1993-06-08 Lersner Wolf A Process for the disposal of medical waste
US5362443A (en) * 1991-12-27 1994-11-08 Nippon Metal Industry Co., Ltd. Method and apparatus for disposal of medical waste
US5427650A (en) * 1992-06-25 1995-06-27 Holloway; Clifford C. Apparatus and method for preparation for separation, recovery, and recycling of municipal solid waste and the like
US5445329A (en) 1993-11-10 1995-08-29 Anderson; Joseph Apparatus, system for treating process material such as waste material
WO1997032077A1 (en) * 1996-02-27 1997-09-04 Tetra Laval Holding & Finance S.A. Process for sanitizing post-consumer paper fibers and product formed therefrom
JPH1147282A (en) * 1997-07-31 1999-02-23 Sharp Corp Low frequency therapeutic apparatus
US6197081B1 (en) 1998-03-18 2001-03-06 Erick Schmidt Method for bio-refining waste organic material to produce denatured and sterile nutrient products
US6458240B1 (en) * 2000-01-14 2002-10-01 Georgia-Pacific Corporation Method for removing contaminants from fibers in recycle fiber pulping

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2456074A (en) * 2007-01-05 2009-07-08 Sterecycle Ltd Process and apparatus for waste treatment
GB2456074B (en) * 2007-01-05 2010-06-30 Sterecycle Ltd Process and apparatus for waste treatment
GB2472599A (en) * 2009-08-11 2011-02-16 Sterecycle Ltd Thermal treatment of waste

Also Published As

Publication number Publication date
WO2003035970A1 (en) 2003-05-01
KR100711659B1 (en) 2007-04-27
CA2464090C (en) 2010-06-15
EP1438459A1 (en) 2004-07-21
CA2464090A1 (en) 2003-05-01
CN100489191C (en) 2009-05-20
KR20040045879A (en) 2004-06-02
JP2005506471A (en) 2005-03-03
GB0327498D0 (en) 2003-12-31
AU2009200412A1 (en) 2009-03-05
JP4061268B2 (en) 2008-03-12
NZ533075A (en) 2004-08-27
GB2392677B (en) 2004-12-01
CN1541291A (en) 2004-10-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20101022