CA2287602C - Procede biologique de desencrage - Google Patents
Procede biologique de desencrage Download PDFInfo
- Publication number
- CA2287602C CA2287602C CA 2287602 CA2287602A CA2287602C CA 2287602 C CA2287602 C CA 2287602C CA 2287602 CA2287602 CA 2287602 CA 2287602 A CA2287602 A CA 2287602A CA 2287602 C CA2287602 C CA 2287602C
- Authority
- CA
- Canada
- Prior art keywords
- enzyme
- printed paper
- waste printed
- pulp
- ink particles
- 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.)
- Expired - Lifetime
Links
- 239000010893 paper waste Substances 0.000 title claims abstract description 27
- 239000002761 deinking Substances 0.000 title abstract description 34
- 238000010170 biological method Methods 0.000 title abstract description 3
- 239000002245 particle Substances 0.000 claims abstract description 31
- 239000000835 fiber Substances 0.000 claims abstract description 26
- 238000005406 washing Methods 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 48
- 239000000976 ink Substances 0.000 claims description 46
- 108090000790 Enzymes Proteins 0.000 claims description 38
- 102000004190 Enzymes Human genes 0.000 claims description 38
- 238000005188 flotation Methods 0.000 claims description 23
- 238000004537 pulping Methods 0.000 claims description 19
- 239000002699 waste material Substances 0.000 claims description 13
- 239000003513 alkali Substances 0.000 claims description 4
- 239000012736 aqueous medium Substances 0.000 claims description 3
- 239000002952 polymeric resin Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 229920002678 cellulose Polymers 0.000 claims description 2
- 239000001913 cellulose Substances 0.000 claims description 2
- 230000007071 enzymatic hydrolysis Effects 0.000 claims description 2
- 238000006047 enzymatic hydrolysis reaction Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims 2
- 239000002609 medium Substances 0.000 claims 2
- 238000010979 pH adjustment Methods 0.000 claims 2
- 102000005575 Cellulases Human genes 0.000 claims 1
- 108010084185 Cellulases Proteins 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 238000004064 recycling Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009291 froth flotation Methods 0.000 abstract description 5
- 108010059892 Cellulase Proteins 0.000 abstract description 3
- 229940106157 cellulase Drugs 0.000 abstract description 3
- 229940088598 enzyme Drugs 0.000 description 26
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 18
- 239000004094 surface-active agent Substances 0.000 description 14
- 235000014113 dietary fatty acids Nutrition 0.000 description 13
- 239000000194 fatty acid Substances 0.000 description 13
- 229930195729 fatty acid Natural products 0.000 description 13
- 150000004665 fatty acids Chemical class 0.000 description 13
- 239000000126 substance Substances 0.000 description 12
- 238000007792 addition Methods 0.000 description 11
- 239000013055 pulp slurry Substances 0.000 description 7
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 6
- 235000011121 sodium hydroxide Nutrition 0.000 description 6
- 238000007796 conventional method Methods 0.000 description 5
- 229920001131 Pulp (paper) Polymers 0.000 description 4
- 239000000344 soap Substances 0.000 description 4
- 239000004115 Sodium Silicate Substances 0.000 description 3
- 230000004071 biological effect Effects 0.000 description 3
- 239000010899 old newspaper Substances 0.000 description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 3
- 239000007844 bleaching agent Substances 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 239000002738 chelating agent Substances 0.000 description 2
- 230000001461 cytolytic effect Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 239000003599 detergent Substances 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 238000005187 foaming Methods 0.000 description 2
- 238000009897 hydrogen peroxide bleaching Methods 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000002351 pectolytic effect Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229910052911 sodium silicate Inorganic materials 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 238000004383 yellowing Methods 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- -1 anionic long-chain fatty acid Chemical class 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000009088 enzymatic function Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010191 image analysis Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004900 laundering Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000019351 sodium silicates Nutrition 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 150000003460 sulfonic acids Chemical class 0.000 description 1
- 238000004394 yellowing prevention Methods 0.000 description 1
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
- D21C1/00—Pretreatment of the finely-divided materials before digesting
-
- 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
-
- 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
- Paper (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2032256 CA2032256C (fr) | 1990-12-14 | 1990-12-14 | Procede biologique de desencrage |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2032256 Division CA2032256C (fr) | 1990-12-14 | 1990-12-14 | Procede biologique de desencrage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2287602A1 CA2287602A1 (fr) | 1992-06-15 |
| CA2287602C true CA2287602C (fr) | 2007-07-03 |
Family
ID=4146648
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2032256 Expired - Lifetime CA2032256C (fr) | 1990-12-14 | 1990-12-14 | Procede biologique de desencrage |
| CA 2287602 Expired - Lifetime CA2287602C (fr) | 1990-12-14 | 1990-12-14 | Procede biologique de desencrage |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2032256 Expired - Lifetime CA2032256C (fr) | 1990-12-14 | 1990-12-14 | Procede biologique de desencrage |
Country Status (1)
| Country | Link |
|---|---|
| CA (2) | CA2032256C (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6426200B1 (en) | 1994-09-15 | 2002-07-30 | University Of Georgia Research Foundation, Inc. | Methods for enzymatic deinking of waste paper |
| US7282113B2 (en) | 2004-11-17 | 2007-10-16 | Tritexco, Inc. | Method for enzymatic deinking of waste papers, the waste papers so treated and the treating composition |
| ES2908691T3 (es) | 2011-10-27 | 2022-05-03 | Buckman Laboratories Int Inc | Método y composición para el tratamiento enzimático de la fibra para la fabricación de papel, y productos de papel hechos del mismo |
-
1990
- 1990-12-14 CA CA 2032256 patent/CA2032256C/fr not_active Expired - Lifetime
- 1990-12-14 CA CA 2287602 patent/CA2287602C/fr not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2032256C (fr) | 2000-02-22 |
| CA2032256A1 (fr) | 1992-06-15 |
| CA2287602A1 (fr) | 1992-06-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed | ||
| MKEC | Expiry (correction) |
Effective date: 20121202 |