Technology of paper recycling:
Gespeichert in:
| Format: | Buch |
|---|---|
| Sprache: | English |
| Veröffentlicht: |
London u.a.
Blackie
1995
|
| Ausgabe: | 1. ed. |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XIV, 401 S. graph. Darst. |
| ISBN: | 0751400173 |
Internformat
MARC
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| 245 | 1 | 0 | |a Technology of paper recycling |c ed. by R. W. J. McKinney |
| 250 | |a 1. ed. | ||
| 264 | 1 | |a London u.a. |b Blackie |c 1995 | |
| 300 | |a XIV, 401 S. |b graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
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| 999 | |a oai:aleph.bib-bvb.de:BVB01-006929110 | ||
Datensatz im Suchindex
| _version_ | 1804124833020116992 |
|---|---|
| adam_text | Technology of Paper Recycling
Edited by
RWJ McKINNEY
Director
Fibre Research Consultants Ltd
Bookham
Surrey
BLACKIE ACADEMIC amp; PROFESSIONAL
An Imprint of Chapman amp; Hall
London • Glasgow • Weinheim • New York • Tokyo • Melbourne • Madras
Contents
1 Wastepaper recovery and collection 1
RWJ McKINNEY
1 1 Introduction 1
1 2 Wastepaper recovery and reuse - the global picture 2
1 3 Wastepaper grading systems 3
1 4 Definitions used in recycling and wastepaper collection 7
141 Pre-consumer and post-consumer 7
142 Yield •• 10
143 Utilisation rate _ 10
144 Recovery rate 10
1 5 Recovery of wastepapers 11
151 Recovery of packaging grades 13
132 Recovery of news and magazines 16
153 Woodfree wastepaper recovery 18
1 6 Government policies regarding wastepaper collection 21
1 7 Wastepaper prices 23
171 Wastepaper value 25
References 26
2 Recovery and utilisation of wastepaper in Japan 28
R OYE
2 1 History of wastepaper recovery 28
2 2 Classification of wastepaper 31
2 3 Collection routes 32
2 4 Recovery and utilisation rates 35
2 5 Legislation 38
2 6 Quality of recycled paper 39
2 7 Outline of wastepaper treatment 41
2 8 Specified facilities and chemicals 42
281 Pulping 42
282 Screening and cleaning 42
283 Kneading 42
284 Soaking 43
285 Flotation 43
286 Washing 43
287 Deinking chemicals 44
Appendix 45
References 47
3 Wastepaper preparation and contaminant removal 48
RWJ MCKINNEY
3 1 Introduction 48
3 2 Wastepaper contaminants 50
Sources of contaminants
Stickies composition and formation
Control of stickies and other contaminants
Equipment layout
Wastepaper processing
References
Pulping
Screening and cleaning
Dispersion
Deinking
TECHNOLOGY OF PAPER RECYCLING
Chemical use in recycling 130
R W TURVEY
4 1 Introduction 130
4 2 Chemical use in deinking - an overview 131
421 Wash deinking 131
422 Types and amounts of chemicals used in wash deinking 131
423 What wash deinking chemicals do 132
424 How wash deinking chemicals work 132
425 Problems caused by wash deinking chemicals 132
426 Flotation and combination deinking 133
427 Types and amounts of chemicals used in flotation deinking 134
428 What flotation deinking chemicals do 134
429 How flotation deinking chemicals work 135
4 2 10 Problems caused by flotation deinking chemicals 136
4 2 11 Disperger chemical addition 136
4 3 Specific chemicals used in deinking 136
431 Sodium hydroxide 136
432 Soap 138
433 Calcium salts 139
434 Surfactants 142
435 Displector™ deinking chemicals 144
436 Emulsions 144
437 Hydrogen peroxide 145
438 Sodium silicate 146
439 Chelating agents 147
4 3 10 Phosphate, carbonate, borate, etc 147
4 3 11 Clay 147
4 3 12 Talc 148
4 3 13 Sulphuric acid 148
4 3 14 Bleaching chemicals 148
4 3 15 Flocculating chemicals 149
4 3 16 Solvents 149
4 4 Some specific recycling problems 150
441 Stickies 150
442 Laser print 150
443 Carbonless copy paper 151
444 Water-based flexographic print 151
445 Filler removal 152
4 5 Future deinking chemicals 152
451 General 152
452 Enzymes 153
References 153
CONTENTS XI
Recycled fibre bleaching 157
A RENDERS
5 1 Introduction 157
5 2 Bleaching with hydrogen peroxide 157
5 3 Hydrogen peroxide addition in the pulper - 158
531 Total alkalinity optimisation 159
532 Sodium silicate optimisation 160
533 Bleaching and deinking , 162
5 4 Hydrogen peroxide in tower bleaching 163
541 Pulp consistency 164
542 Optimisation of total alkalinity and sodium silicate 164
5 5 Pulper bleaching versus tower bleaching 165
5 6 Splitting of peroxide between pulper and tower 168
5 7 Disperser bleaching with hydrogen peroxide 168
571 Deinking prior to dispersion 169
572 Bleaching results 170
573 Post-dispersion flotation efficiency 170
574 Disperser energy ^ 172
5 8 Parameters to control hydrogen peroxide efficiency 172
581 Metal ions 174
582 Catalase enzyme * 176
583 Residuals of reductive bleaching agents 177
5 9 Oxygen and ozone bleaching for recycled fibres 177
5 10 Reductive bleaching agents 178
5 11 Sodium hypochlorite 178
References 179
The effects of recycling on pulp quality 180
R C HOWARD
6 1 Introduction 180
6 2 The general effect of recycling 181
621 Refined chemical pulps 181
622 Mechanical pulps 184
6 3 Factors affecting the recycle potential 186
631 The influence of fibre furnish and pulping history 186
632 The influence of paper making history 188
633 The influence of converting history 194
634 The influence of the consumer and collector 195
635 The influence of recycling processes 195
6 4 Methods of controlling the paper making potential 197
641 Refining 197
642 Prevention of hornification 198
643 Blending with virgin pulp 198
644 Chemical additives 199
645 Fractionation 199
646 Chemical reprocessing 200
6 5 Conclusions 200
References 201
xii TECHNOLOGY OF PAPER RECYCLING
7 Water and waste water treatment in recycling mills 204
RWJ MCKINNEY
7 1 Introduction 204
7 2 Freshwater use in recycling 205
721 Freshwater treatment 207
7 3 Effluent loads 208
731 Specific chemical constituents of effluents 209
7 4 Effluent treatment standards 211
7 5 Physiochemical treatment processes - waste water clarification 213
751 Pre-treatment 216
752 Sedimentation 216
753 Dissolved air flotation (DAF) 217
754 Filtration 219
7 6 Biological treatment systems 219
761 Anaerobic treatment processes 220
762 Aerobic treatment processes 222
763 Activated sludge - 225
764 Aerated lagoons (aerated stabilisation basins) 227
7 7 Sludge treatment and disposal 227
771 Sludge collection and blending 228
772 Sludge dewatering 229
773 Sludge stabilisation 230
774 Beneficial uses of sludge 232
7 8 Chemical use in water clarification and effluent treatment 233
781 Chemical use in freshwater clarification 233
782 Recycling mill backwater clarification 234
783 Nutrients - nitrogen and phosphorus 239
References 241
Manufacture of packaging grades from wastepaper 244
RWJ McKINNEY
8 1 Introduction 244
811 Packaging products made from recycled fibres 246
8 2 Wastepaper grades used in packaging production 247
821 Wastepaper use in liner grades 249
822 Wastepaper use in corrugating medium 250
823 Wastepaper use in box-board grades 250
824 Wastepaper use in packaging papers 251
8 3 Wastepaper processing of brown grades 251
831 Pulping systems 252
832 Cleaning and screening systems 256
833 Rejects handling 261
834 Fractionation and dispersion/kneading 262
835 Strength development by refining 271
836 Water treatment 272
8 4 Board machine runnability with recycled grades 274
841 Box-board 274
842 Liner board and medium 274
8 5 Effect of use of recycled fibres on product properties 276
851 Starch use in recycled grades 277
8 6 Properties of recycled fibre grades 280
861 Solid fibreboard, box-board 281
862 Corrugating medium or fluting 281
CONTENTS Xlll
863 Liner board, test liner 286
8 7 Use of OCC to produce bleached board * 292
References 293
9 Manufacture of newsprint using recycled fibres 296
J K HUSTON
9 1 Introduction 296
9 2 Wastepaper grades used 296
921 Definition of wastepaper grades 296
922 Old newspapers 297
923 Magazine 298
9 3 Recycled fibre processing 300
931 Major processing steps 300
932 Process flow sheets 300
9 4 Production of newsprint from recycled fibres 304
9 5 Quality and performance o f recycled newsprint 306
951 Economics of wastepaper usage - capital costs 307
952 Variable manufacturing costs 307
References 309
10 The manufacture of tissue using recycled fibres 311
RWJ MCKINNEY
10 1 Introduction 311
10 1 1 Grade structure 311
10 1 2 Wastepaper utilisation rates 313
10 1 3 Specifications of recycled fibre for tissue production 314
10 2 Production problems associated with recycled fibres 316
10 2 1 Stock preparation 316
10 2 2 Problems due to high ash 319
10 2 3 Problems due to stickies 320
10 2 4 Sheet breaks 323
10 2 5 Increased microbiological activity 324
10 2 6 Effect of recycled fibres on creping 324
10 3 Effects of recycled-fibre use on tissue quality 326
10 3 1 Effect on softness 326
10 3 2 Effect on appearance 328
10 4 Future use of recycled fibres in tissue 328
References 329
11 Manufacturing of printing and writing papers using recycled 331
fibres
J B MORRISON
11 1 Introduction 331
11 2 Printing and writing grades 331
11 3 Recovered wastepaper grades 334
11 4 Recycled-fibre manufacturing 336
11 5 Properties of recycled fibres 336
11 6 Recycled-fibre stock preparation systems 341
11 6 1 Non-integrated printing and writing mills 341
11 6 2 Semi-integrated printing and writing mills 342
11 6 3 Integrated printing and writing mills 343
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| id | DE-604.BV010405634 |
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| indexdate | 2024-07-09T17:51:56Z |
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| isbn | 0751400173 |
| language | English |
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| physical | XIV, 401 S. graph. Darst. |
| publishDate | 1995 |
| publishDateSearch | 1995 |
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| publisher | Blackie |
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| spelling | Technology of paper recycling ed. by R. W. J. McKinney 1. ed. London u.a. Blackie 1995 XIV, 401 S. graph. Darst. txt rdacontent n rdamedia nc rdacarrier Recycling (DE-588)4076573-8 gnd rswk-swf Papier (DE-588)4044522-7 gnd rswk-swf Recycling (DE-588)4076573-8 s Papier (DE-588)4044522-7 s DE-604 MacKinney, R. W. Sonstige oth HEBIS Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=006929110&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Technology of paper recycling Recycling (DE-588)4076573-8 gnd Papier (DE-588)4044522-7 gnd |
| subject_GND | (DE-588)4076573-8 (DE-588)4044522-7 |
| title | Technology of paper recycling |
| title_auth | Technology of paper recycling |
| title_exact_search | Technology of paper recycling |
| title_full | Technology of paper recycling ed. by R. W. J. McKinney |
| title_fullStr | Technology of paper recycling ed. by R. W. J. McKinney |
| title_full_unstemmed | Technology of paper recycling ed. by R. W. J. McKinney |
| title_short | Technology of paper recycling |
| title_sort | technology of paper recycling |
| topic | Recycling (DE-588)4076573-8 gnd Papier (DE-588)4044522-7 gnd |
| topic_facet | Recycling Papier |
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