urban water cycle Articles
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Life Cycle Costing: a tool to manage the urban water cycle
The Water Framework Directive puts much emphasis on the role of economics for improving the management of water resources. In the context of the urban water cycle, previous studies have proven that Life Cycle Costing (LCC) is a useful methodology for assessing the costs of the whole cycle. However, there are many elements and factors that can influence the results of the LCC assessment and ...
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Assessing performance in the management of the urban water cycle
This paper proposes the use of directional distance functions and Data Envelopment Analysis techniques to assess technical efficiency in the provision of the different stages of the urban water cycle in Andalusia, a Southern European region. Evaluating performance in the management of specific stages of the urban water cycle provides utility managers and regulating authorities with relevant ...
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Water and the city: exploring links between urban growth and water demand management
Urban water management is currently understood as a socio-technical problem, including both technologies and engineering interventions as well as socioeconomic dimensions and contexts vis-à-vis both end users and institutions. In this framework, perhaps the most important driver of urban water demand, at the intersection between engineering, social and economic domains, is urban growth. ...
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The urban harvest approach as framework and planning tool for improved water and resource cycles
Water and resource availability in sufficient quantity and quality for anthropogenic needs represents one of the main challenges in the coming decades. To prepare for upcoming challenges such as increased urbanization and climate change related consequences, innovative and improved resource management concepts are indispensable. In recent years we have developed and applied the urban harvest ...
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Water reuse perceptions of students, faculty and staff at Western University, Canada
Global fresh water resources are under increasing pressure from rapidly growing demands and changing climatic conditions. Wastewater reclamation is becoming an important alternative for sustainable water resources management and building climate change resiliency in many regions around the world. Public acceptance and trust of consumers in the quality of reclaimed water is considered by many ...
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Collaboration essential for an energy neutral urban water cycle
Two Dutch water boards prepared a Master Plan with measures to substantially reduce their energy use by 2027. In total, more than 100 measures were identified such as bubble aeration and heat recovery from effluent. Together these measures result in a 90–95% reduction in energy use at the water boards. However, for the whole urban water cycle, thus including the energy required ...
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Integration of seawater and grey water reuse to maximize alternative water resource for coastal areas: the case of the Hong Kong International Airport
Development, population growth and climate change have pressurized water stress in the world. Being an urbanized coastal city, Hong Kong has adopted a dual water supply system since the 1950s for seawater toilet flushing for 80% of its 7 million inhabitants. Despite its success in saving 750,000 m3/day of freshwater, the saline sewage (consisting of about 20–30% of seawater) appears to have ...
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Modelling the urban water cycle as an integrated part of the city: a review
In contrast to common perceptions, the urban water infrastructure system is a complex and dynamic system that is constantly evolving and adapting to changes in the urban environment, to sustain existing services and provide additional ones. Instead of simplifying urban water infrastructure to a static system that is decoupled from its urban context, new management strategies use the complexity ...
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Extending the water safety plan concept to the urban water cycle
The urban water cycle (UWC) is often managed by several stakeholders dealing with specific components of the cycle such as water supply, wastewater systems and water bodies management. Therefore, risk management in the UWC benefits from an integrated approach to incorporate the interdependencies between elements. The water cycle safety plan (WCSP) provides a common risk management framework for ...
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Capturing the Potential of Stormwater
Management of the urban water cycle in Australia has changed significantly over the past few decades. Stormwater management philosophy has evolved from the conventional, but still important, flood mitigation paradigm, to the current runoff quality control approach. It is now progressing towards the harvesting and reuse concept whilst retaining the previous two targets. iven the current interest ...
By IVWater
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Separating grey- and blackwater in urban water cycles – sensible in the view of misconnections?
The infrastructure approach SEMIZENTRAL has been developed for fast growing cities, to meet their challenges regarding water supply as well as biowaste and wastewater treatment. The world's first full-scale SEMIZENTRAL Resource Recovery Center (RRC) has been implemented in Qingdao (PR China). Greywater (GW) and blackwater (BW) are collected and treated separately. Measurement of influent ...
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Financial sustainability of urban water cycle services in developing countries: a case study in Mozambique
A management strategy to achieve financial sustainability of urban water cycle services in developing countries is presented, based on the development of the Long Term Water Supply and Sanitation Services Investment Plan for the Water and Sanitation Infrastructure Administration (Administração de Infra-estruturas de Água e Saneamento (AIAS)) of Mozambique. AIAS is responsible for water supply ...
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Roadmap guideline: A manual to organise transition planning in Urban Water Cycle Systems
A roadmap enables decision makers to plan and implement a pathway to achieve desired objectives. At the same time it serves as an excellent communication tool. The TRUST roadmap links strategy to future needs and actions and incorporates a plan for needed adaptations measures to be available at the right time. It addresses to managers and decision makers of urban water services related ...
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Monitoring brings reliability to wastewater collection systems - Case Study
Remote terminal units help an Oregon utility monitor 40 major pump and lift stations. Clean Water Services (CWS), a water reuse provider in Oregon that serves more than 500,000 residents, has partnered with local organizations to educate the public about the importance of wastewater reuse. CWS Government and Public Affairs Manager Mark Jockers says they intend to increase public understanding ...
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The application of a Web-geographic information system for improving urban water cycle modelling
Research in urban water management has experienced a transition from traditional model applications to modelling water cycles as an integrated part of urban areas. This includes the interlinking of models of many research areas (e.g. urban development, socio-economy, urban water management). The integration and simulation is realized in newly developed frameworks (e.g. DynaMind and OpenMI) and ...
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Multicriteria performance analysis of an integrated urban wastewater system for energy management
The optimization and management of an integrated urban wastewater system is a complex problem involving many processes and variables. The possible control options are defined by several management strategies that may differently impact the economic, operational or environmental performance of the system. The present paper aims to contribute to the environmental and energy sustainability of ...
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Exploring the effects of domestic water management measures to water conservation attitudes using agent based modelling
The urban water system's sustainable evolution requires managing both water supply and water demand within a complete urban water cycle framework. Such an approach, however, requires tools to analyse and simulate the complete system including both physical and cultural environments. One of the main challenges, in this regard, is the design and development of tools able to simulate the ...
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The city blueprint: experiences with the implementation of 24 indicators to assess the sustainability of the urban water cycle
A set of indicators, i.e. the city blueprint, has been developed to assess the sustainability of the water cycle (SWC). The city blueprint comprises a set of 24 dedicated indicators divided over eight categories, i.e. water security, water quality, drinking water, sanitation, infrastructure, climate robustness, biodiversity and attractiveness and governance including public participation. This ...
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Info-Gap robustness pathway method for transitioning of urban drainage systems under deep uncertainties
In the urban water cycle, there are different ways of handling stormwater runoff. Traditional systems mainly rely on underground piped, sometimes named ‘gray’ infrastructure. New and so-called ‘green/blue’ ambitions aim for treating and conveying the runoff at the surface. Such concepts are mainly based on ground infiltration and temporal storage. In this work a methodology to create and ...
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