Origin and applications of AWJ

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Table of contents

1 Introduction
1.1 Background
1.2 Aim
2 Material flows in AWJ industry
2.1 Origin and applications of AWJ
2.2 Description of an AWJ machine
2.3 Abrasive characteristics
2.4 Abrasive market and garnet production
2.4.1 Alternative abrasives
2.5 Management of the waste flows
2.5.1 Alternative recycling and disposal practices
3 Theoretical framework
3.1 Industrial ecology
3.2 Environmental system analysis
3.3 Life Cycle Assessment
4 Research design and methods
4.1 Scope definition
4.1.1 Scenarios development
4.2 Inventory analysis
4.2.1 Reference scenario: Alluvial abrasive and landfilling
4.2.2 Production scenario 1: Crushed rock abrasive
4.2.3 Production scenario 2: Recycled glass abrasive
4.2.4 Production scenario 3: Synthetic high-performances abrasive
4.2.5 Disposal scenario 1: In-site recycling
4.2.6 Disposal scenario 2: Off-site recycling
4.2.7 Disposal scenario 3: Recycling as construction material
4.3 Impact assessment
4.4 Interpretation
5 Results
5.1 Analysis of the scenarios
5.1.1 Reference scenario: Alluvial abrasive and landfilling
5.1.2 Production scenario 1: Crushed rock abrasive
5.1.3 Production scenario 2: Recycled glass abrasive
5.1.4 Production scenario 3: Synthetic high-performances abrasive
5.1.5 Disposal scenario 1: In-site recycling
5.1.6 Disposal scenario 2: Off-site recycling
5.1.7 Disposal scenario 3: Recycling as construction material
5.2 Comparison of the scenarios
5.3 Validity of the results
6 Conclusions
6.1 Implications for the AWJ industry