PH12020550534A1 - Method and system for recovering pulp fibers from used absorbent articles - Google Patents
Method and system for recovering pulp fibers from used absorbent articlesInfo
- Publication number
- PH12020550534A1 PH12020550534A1 PH12020550534A PH12020550534A PH12020550534A1 PH 12020550534 A1 PH12020550534 A1 PH 12020550534A1 PH 12020550534 A PH12020550534 A PH 12020550534A PH 12020550534 A PH12020550534 A PH 12020550534A PH 12020550534 A1 PH12020550534 A1 PH 12020550534A1
- Authority
- PH
- Philippines
- Prior art keywords
- pulp fibers
- highly water
- absorbent polymer
- absorbent articles
- separated
- Prior art date
Links
- 239000002250 absorbent Substances 0.000 title abstract 12
- 239000000835 fiber Substances 0.000 title abstract 7
- 230000002745 absorbent Effects 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 4
- 229920000642 polymer Polymers 0.000 abstract 8
- 239000007864 aqueous solution Substances 0.000 abstract 3
- 239000007788 liquid Substances 0.000 abstract 2
- 239000007800 oxidant agent Substances 0.000 abstract 2
- 239000007787 solid Substances 0.000 abstract 2
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- 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
- B09B3/70—Chemical treatment, e.g. pH adjustment or oxidation
-
- 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
-
- 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
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/35—Shredding, crushing or cutting
-
- 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
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/38—Stirring or kneading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/04—Disintegrating plastics, e.g. by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/06—Recovery or working-up of waste materials of polymers without chemical reactions
- C08J11/08—Recovery or working-up of waste materials of polymers without chemical reactions using selective solvents for polymer components
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J11/00—Recovery or working-up of waste materials
- C08J11/04—Recovery or working-up of waste materials of polymers
- C08J11/10—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation
- C08J11/16—Recovery or working-up of waste materials of polymers by chemically breaking down the molecular chains of polymers or breaking of crosslinks, e.g. devulcanisation by treatment with inorganic material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0217—Mechanical separating techniques; devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B17/00—Recovery of plastics or other constituents of waste material containing plastics
- B29B17/02—Separating plastics from other materials
- B29B2017/0213—Specific separating techniques
- B29B2017/0293—Dissolving the materials in gases or liquids
-
- 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
- Y02W30/20—Waste processing or separation
-
- 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
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
-
- 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
- Y02W30/62—Plastics recycling; Rubber recycling
-
- 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
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- General Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Paper (AREA)
Abstract
Provided is a method for highly efficiently removing a highly water-absorbent polymer from pulp fibers that have been separated from used absorbent articles and include residual highly water-absorbent polymer. A method for recovering pulp fibers from used absorbent articles that include the pulp fibers and a highly water-absorbent polymer, the method comprising: a solid-liquid separation step (S18) in which a deactivating aqueous solution that includes pulp fibers and highly water-absorbent polymer that have been separated from the used absorbent articles is separated into a solid that includes the pulp fibers and the highly water-absorbent polymer and a liquid that includes the highly water-absorbent polymer and the deactivating aqueous solution and, meanwhile, the highly water-absorbent polymer is smashed; and an oxidizing agent treatment step (S19) in which the pulp fibers and smashed highly water-absorbent polymer included in the separated solid are treated with an aqueous solution that includes an oxidizing agent.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017212277A JP6762287B2 (en) | 2017-11-01 | 2017-11-01 | Methods and systems for recovering pulp fibers from used absorbent articles |
PCT/JP2018/028155 WO2019087489A1 (en) | 2017-11-01 | 2018-07-26 | Method and system for recovering pulp fibers from used absorbent articles |
Publications (1)
Publication Number | Publication Date |
---|---|
PH12020550534A1 true PH12020550534A1 (en) | 2021-03-22 |
Family
ID=66331545
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PH12020550534A PH12020550534A1 (en) | 2017-11-01 | 2020-04-30 | Method and system for recovering pulp fibers from used absorbent articles |
Country Status (7)
Country | Link |
---|---|
JP (1) | JP6762287B2 (en) |
KR (1) | KR102304591B1 (en) |
CN (1) | CN111278901B (en) |
AU (1) | AU2018360436B2 (en) |
PH (1) | PH12020550534A1 (en) |
TW (1) | TWI726234B (en) |
WO (1) | WO2019087489A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7114523B2 (en) * | 2019-04-26 | 2022-08-08 | ユニ・チャーム株式会社 | Method for producing recycled pulp fibers from used absorbent articles containing superabsorbent polymers, pulp fibers and excreta |
TWI702094B (en) * | 2019-05-30 | 2020-08-21 | 艾克斯馬克全球有限公司 | Absorbent sanitary product treatment system and the treatment method of the same |
JP7355714B2 (en) | 2020-07-20 | 2023-10-03 | ユニ・チャーム株式会社 | Method for producing purified recycled pulp fiber from used sanitary products |
WO2022067371A1 (en) * | 2020-09-29 | 2022-04-07 | Kirkford Pty Ltd | Dewatering apparatus |
JP2022072367A (en) | 2020-10-29 | 2022-05-17 | ユニ・チャーム株式会社 | Method of treating effluent containing dissolved components of superabsorbent polymer |
JP2022104407A (en) * | 2020-12-28 | 2022-07-08 | ユニ・チャーム株式会社 | Pretreatment method and pretreatment system |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2937996B1 (en) * | 1998-02-20 | 1999-08-23 | 花王株式会社 | Recovery method of water absorbent material |
JP2001047023A (en) * | 1999-08-10 | 2001-02-20 | Wakaida Eng:Kk | Method for disposing of paper diaper and apparatus for disposing of paper diaper |
JP3450275B2 (en) * | 2000-04-28 | 2003-09-22 | 株式会社大貴 | How to recover the material from the soiled sanitary goods |
JP2002273731A (en) * | 2001-03-16 | 2002-09-25 | Univ Fukuoka | Paper diaper cutting pretreatment method for reutilizing used paper diaper |
JP5075896B2 (en) * | 2009-09-24 | 2012-11-21 | 大王製紙株式会社 | Absorbent articles |
JP6199243B2 (en) * | 2014-06-12 | 2017-09-20 | ユニ・チャーム株式会社 | Method for producing recycled pulp from used sanitary products |
JP6646924B2 (en) * | 2014-09-22 | 2020-02-14 | ユニ・チャーム株式会社 | Method for recovering pulp fibers from used sanitary articles and recycled pulp obtained by the method |
JP6203158B2 (en) * | 2014-10-15 | 2017-09-27 | ユニ・チャーム株式会社 | Method for producing recycled pulp from used sanitary products |
WO2017104062A1 (en) * | 2015-12-18 | 2017-06-22 | 株式会社無有 | Separation device, and method of manufacturing water absorbent material |
JP6505045B2 (en) * | 2016-04-11 | 2019-04-24 | ユニ・チャーム株式会社 | Method of recovering pulp fibers from used absorbent articles |
-
2017
- 2017-11-01 JP JP2017212277A patent/JP6762287B2/en active Active
-
2018
- 2018-07-26 CN CN201880069837.8A patent/CN111278901B/en active Active
- 2018-07-26 KR KR1020207012651A patent/KR102304591B1/en active IP Right Grant
- 2018-07-26 WO PCT/JP2018/028155 patent/WO2019087489A1/en active Application Filing
- 2018-07-26 AU AU2018360436A patent/AU2018360436B2/en active Active
- 2018-08-20 TW TW107128944A patent/TWI726234B/en active
-
2020
- 2020-04-30 PH PH12020550534A patent/PH12020550534A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
KR20200079257A (en) | 2020-07-02 |
AU2018360436B2 (en) | 2020-12-17 |
AU2018360436A1 (en) | 2020-05-28 |
KR102304591B1 (en) | 2021-09-24 |
TW201923195A (en) | 2019-06-16 |
TWI726234B (en) | 2021-05-01 |
CN111278901A (en) | 2020-06-12 |
JP6762287B2 (en) | 2020-09-30 |
WO2019087489A1 (en) | 2019-05-09 |
CN111278901B (en) | 2021-07-16 |
JP2019085447A (en) | 2019-06-06 |
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