Understanding the role of alternative water supply in an urban water security strategy: an analytical framework for decision-making

Bichai, Françoise; Ryan, H. Dennis; Fitzgerald, Cameron; Williams, Kate; Abdelmoteleb, Ashraf; Brotchie, Ryan; Komatsu, R

doi:10.1080/1573062x.2014.895844

Cited by 36 publications

(27 citation statements)

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“…Furthermore, hybrid systems feature both the financial advantage of the onsite system (capital investment) and the superiority of centralized systems in terms of operation and maintenance [95,111]. There is also a benefit from the diversification of supply sources from a risk-management perspective in terms of urban water security [114]. However, such benefits are hard to monetize.…”

Section: Advantages Of Hybrid Water Supply Systemsmentioning

confidence: 99%

“…Furthermore, as a water source, the treatment of wastewater involves energy use that may be greater than surface water [115]. Further, there are challenges related to retrofitting, which is associated with limited land and high cost [114]. Another challenge in transforming the model of service provision from centralized to hybrid water supply systems is the investment cycles for infrastructure.…”

Section: Challenges Of Hybrid Water Supply Systemsmentioning

confidence: 99%

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An Overview of Hybrid Water Supply Systems in the Context of Urban Water Management: Challenges and Opportunities

Sapkota

Arora

Malano

et al. 2014

Water

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This paper presents a critical review of the physical impacts of decentralized water supply systems on existing centralized water infrastructures. This paper highlights the combination of centralized and decentralized systems, which is referred to as hybrid water supply systems. The system is hypothesized to generate more sustainable and resilient urban water systems. The basic concept is to use decentralized water supply options such as rainwater tanks, storm water harvesting and localized wastewater treatment and reuse in combination with centralized systems. Currently the impact of hybrid water supply technologies on the operational performance of the downstream infrastructure and existing treatment processes is yet to be known. The paper identifies a number of significant research gaps related to interactions between centralized and decentralized OPEN ACCESSWater 2015, 7 154 urban water services. It indicates that an improved understanding of the interaction between these systems is expected to provide a better integration of hybrid systems by improved sewerage and drainage design, as well as facilitate operation and maintenance planning. The paper also highlights the need for a framework to better understand the interaction between different components of hybrid water supply systems.

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Section: Advantages Of Hybrid Water Supply Systemsmentioning

confidence: 99%

Section: Challenges Of Hybrid Water Supply Systemsmentioning

confidence: 99%

An Overview of Hybrid Water Supply Systems in the Context of Urban Water Management: Challenges and Opportunities

Sapkota

Arora

Malano

et al. 2014

Water

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“…River and waterbody health Quality of waste water produced and their impacts (contribution to acidification and eutrophication, effects on flora and fauna) [13][14][15][17][18][19][20][21][22][23]28,29,39] Quantity of wastewater produced [15,22,25,29,40] Stormwater runoff [15,25,29] Maintain river, local creaks, and wetlands Effect on environmental flow and surface water [14,18,25,40] Freshwater/portable water saved [13,15,17,24] Effects on groundwater level and pattern (ground water infiltration, recharge, and depletion) [14,19,24,39,41] Protect land ecosystem…”

Section: Objectives Evaluation Criteriamentioning

confidence: 99%

“…Often these evaluations are supported by methods such as multi-criteria analysis [13,[15][16][17][18], cost-benefit analysis [18,19], life cycle assessment [20][21][22][23][24], and optimisation techniques [17,[24][25][26]. While few studies compare water supply options using available data [27], the majority of studies model the entirety of the urban water cycle to estimate impacts of different water supply options on other components of the system [14,25,28,29].…”

Section: Studies Evaluating Water Supply and Demand Management Optionsmentioning

confidence: 99%

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Assessment of Sustainability of Urban Water Supply and Demand Management Options: A Comprehensive Approach

Rathnayaka

Malano

Arora

2016

Water

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Abstract:A comprehensive evaluation framework that can assess a wide range of water supply and demand management policy options in terms of economic, social, environmental, risk-based, and functional performance is crucial to ascertain their level of sustainability. However, such a detailed, generic, and holistic policy evaluation framework is not found in the literature. This paper reviews studies to evaluate water supply and/or demand management options conducted during 2000-2016. Primarily, the paper reviews the evaluation criteria used by different studies for decision making given their significant difference and the importance of a comprehensive set of criteria to complete a rigorous evaluation. In addition, a comprehensive set of water supply and demand management options are not considered together for a comparative assessment to prioritise best options for a certain area and time. Further, performance of these options needs to be evaluated for a range of uncertainties arising from changes of spatial and temporal variables of the system. While this paper highlights the important aspects that need to be included in a comprehensive policy evaluation framework, available studies collectively present a rich set of information to support it.

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A hydrocarbon pipeline spill risk assessment framework for drinking water supply

et al. 2020

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Although infrequent, pipeline spills have the potential to contaminate source water supplies and disrupt drinking water production for extended periods. Detailed multiphase contaminant fate and transport models linked to hydrodynamic models are ideal for determining the potential impact of oil spills on drinking water sources. However, sufficient data are often unavailable to simulate spills scenarios. Thus, a simple semiquantitative modeling approach is proposed that is based on documented pipeline spills recorded in scientific literature. A risk matrix was used to combine the consequences of a spill with the probability that it would contaminate drinking water sources. The new Pipeline Spill Risk Assessment Framework was applied to 26 drinking water intakes located in the greater Montreal area (Quebec). The proposed framework allows for transparency and facilitation of public discussions with regard to oil spill risks and decision‐making for source water protection and water safety plans.

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Understanding the role of alternative water supply in an urban water security strategy: an analytical framework for decision-making

Cited by 36 publications

References 1 publication

An Overview of Hybrid Water Supply Systems in the Context of Urban Water Management: Challenges and Opportunities

An Overview of Hybrid Water Supply Systems in the Context of Urban Water Management: Challenges and Opportunities

Assessment of Sustainability of Urban Water Supply and Demand Management Options: A Comprehensive Approach

A hydrocarbon pipeline spill risk assessment framework for drinking water supply

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