Advantages of integrated and sustainability based assessment for metabolism based strategic planning of urban water systems

Behzadian, Kourosh and Kapelan, Zoran (2015) Advantages of integrated and sustainability based assessment for metabolism based strategic planning of urban water systems. Science of The Total Environment, 527-52. pp. 220-231. ISSN 0048-9697

Behzadian and Kapelan 2015b Final Draft.pdf - Accepted Version

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Despite providing water-related services as the primary purpose of urban water system (UWS), all relevant activities require capital investments and operational expenditures, consume resources (e.g. materials and chemicals),
and may increase negative environmental impacts (e.g. contaminant discharge, emissions to water and air).
Performance assessment of such a metabolic system may require developing a holistic approach which encompasses various system elements and criteria. This paper analyses the impact of integration of UWS components
on the metabolism based performance assessment for future planning using a number of intervention strategies.
It also explores the importance of sustainability based criteria in the assessment of long-term planning. Two assessment approaches analysed here are: (1) planning for only water supply system (WSS) as a part of the UWS and
(2) planning for an integrated UWS including potable water, stormwater, wastewater and water recycling.
WaterMet2 model is used to simulate metabolic type processes in the UWS and calculate quantitative performance
indicators. The analysis is demonstrated on the problem of strategic level planning of a real-world UWS to where
optional intervention strategies are applied. The resulting performance is assessed using the multiple criteria of
both conventional and sustainability type; and optional intervention strategies are then ranked using the Compromise Programming method. The results obtained show that the high ranked intervention strategies in the integrated
UWS are those supporting both water supply and stormwater/wastewater subsystems (e.g. rainwater harvesting
and greywater recycling schemes) whilst these strategies are ranked low in the WSS and those targeting improvement of water supply components only (e.g. rehabilitation of clean water pipes and addition of new water
resources) are preferred instead. Results also demonstrate that both conventional and sustainability type performance indicators are necessary for strategic planning in the UWS.

Item Type: Article
Subjects: Construction and engineering
Depositing User: Kourosh Behzadian Moghadam
Date Deposited: 22 Mar 2016 16:44
Last Modified: 19 Nov 2016 20:13


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