ISO 20468-2:2019
Current
The latest, up-to-date edition.
Guidelines for performance evaluation of treatment technologies for water reuse systems Part 2: Methodology to evaluate performance of treatment systems on the basis of greenhouse gas emissions
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English
07-11-2019
This document provides guidelines for evaluating the performance of treatment systems on the basis of greenhouse gas (GHG) emissions.
In order to estimate greenhouse gas emissions from a treatment system, this document covers the estimate, types of GHG emission and sources, emission factor for each GHG, and global warming potential. The weight of greenhouse gases to be used in an evaluation is equivalent to emissions during operation of a treatment system.
This document also defines a method for calculating carbon dioxide equivalent (CO2eq) emission intensity, in which GHG emissions are divided by the volume of reclaimed water. It also includes a method for evaluating the performance of a treatment system using CO2eq emission intensity.
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