ISO 20468-8:2022
Guidelines for performance evaluation of treatment technologies for water reuse systems — Part 8: Evaluation of treatment systems based on life cycle cost
This document provides life-cycle cost (LCC) methodology for treatment systems for water reuse for initial planning as well as later performance evaluation. LCC analysis provides valid information to determine whether the objectives have actually been accomplished and how operations are improved and optimized. Environmental impact is also taken into account in the LCC evaluation.
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
3.2 Symbols and abbreviated terms
4 Concept of economic evaluation
4.1 General
4.2 Timing of the evaluation
4.3 Consideration of water quality
5 Economic evaluation procedure
5.1 Boundary definition
5.2 Cost elements definition
5.3 Calculation
5.4 Evaluation
6 Evaluation of environmental benefits
6.1 General
6.2 Water recovery ratio and heat output recovery ratio
Annex A (informative) Example of evaluation of treatment systems for municipal water reuse
Annex B (informative) Example of evaluation of treatment systems for industrial water reuse
Annex C (informative) Evaluation of environmental benefits
Bibliography
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
3.2 Symbols and abbreviated terms
4 Concept of economic evaluation
4.1 General
4.2 Timing of the evaluation
4.3 Consideration of water quality
5 Economic evaluation procedure
5.1 Boundary definition
5.2 Cost elements definition
5.3 Calculation
5.4 Evaluation
6 Evaluation of environmental benefits
6.1 General
6.2 Water recovery ratio and heat output recovery ratio
Annex A (informative) Example of evaluation of treatment systems for municipal water reuse
Annex B (informative) Example of evaluation of treatment systems for industrial water reuse
Annex C (informative) Evaluation of environmental benefits
Bibliography