Strategic Importance and Safety of Water Resources

Zolghadr‐Asli, Babak; Bozorg‐Haddad, Omid; Chu, Xuefeng

doi:10.1061/(asce)ir.1943-4774.0001181

Cited by 14 publications

(1 citation statement)

References 37 publications

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“…Climate change is regarded as the greatest threat to society in the coming years [2], making sustainable development an urgent global priority [3]. The water industry is critical in almost every aspect of society [4], and is directly affected by climate change, with changes in temperature, rainfall intensities and sea levels resulting in increased treatment and subsequence energy costs [5]. Sustainable development is therefore vital for the water industry, as it aims to meet social needs in a changing climate, while conserving resources and protecting the environment at a sustainable price [6].…”

Section: Introductionmentioning

confidence: 99%

A Comparison of the Operational Energy Demand of Both Low Pressure and Vacuum Collection Systems

McDermott

2020

JWARP

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Climate change is regarded as the greatest threat to society in the coming years, and directly affects the water industry; with changes in temperature, rainfall intensities and sea levels resulting in increased treatment and subsequent energy costs. As one of the largest global consumers of energy, the water industry has the opportunity to significantly prevent climate change by reducing energy usage and subsequent carbon footprints. Wastewater treatment alone requires an estimated 1%-3% of a country overall energy output while producing 1.6% of its global greenhouse gas emissions; over 75% of which can be due to the collection system. Gravity flows should therefore be incorporated where possible, reducing pumping requirements and therefore minimizing costs and subsequent carbon footprints. This study has assessed the operational energy usage of the alternative collection systems low pressure and vacuum, for use in situations in which a conventional gravity system is not practicable. This was carried out through hypothetical scenario testing using design parameters derived from literature, generating 60 hypothetical collection mains with variations in population, static head and main length. From this study, it was found that the energy demand of a low pressure system is 3.2-4.2 times greater than that of its equivalent vacuum system in the same scenario. Energy demand for both systems increases with population, static head and main length. However, population and therefore flow changes were found to have the greatest effect on the energy usage of both systems. Therefore, flow reduction measures should be adopted if the decarbonization of the water industry is to be achieved.

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Section: Introductionmentioning

confidence: 99%

A Comparison of the Operational Energy Demand of Both Low Pressure and Vacuum Collection Systems

McDermott

2020

JWARP

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Hydropower in Climate Change

Zolghadr‐Asli

Bozorg‐Haddad

Chu

2019

Encyclopedia of Water

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While many would turn to renewable resources to mitigate the adverse impacts of over‐exploitation of fossil fuels, the fact of the matter is that if the design, operation, and management of such renewable resources are not executed with great care and consideration, they may do more harm than good. In this article, hydropower, as one of the most important known renewable resources, was investigated under the potential influence of climate change. Through a thought‐provoking discussion, it is demonstrated that while a proper and logical use of this resource could mitigate the adverse impact of climate change; a false design and/or management technique would even cause additional economic and ecological harm.

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