210,767 research outputs found

    Regional integrated infrastructure scoping study

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    The purpose of the study is to consider how the Region should take infrastructure forward in an integrated way at a strategic level and to help scope further work to inform the RSS 2009 Update. It is envisaged that this scoping study is the first part of a major work stream for the Assembly to enable infrastructure to influence future locational decisions and develop a better understanding of the impact of higher levels of growth on the Region’s infrastructure

    Making asset investment decisions for wastewater systems that include sustainability

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    Effective integrated water management is a key component of the World Water Vision and the way in which aspirations for water equity may be realized. Part of the vision includes the promotion of sustainability of water systems and full accountability for their interaction with other urban systems. One major problem is that “sustainability” remains an elusive concept, although those involved with the provision of urban wastewater systems now recognize that decisions involving asset investment should use the “triple bottom line” approach to society, the economy, and the environment. The Sustainable Water Industry Asset Resource Decisions project has devised a flexible and adaptable framework of decision support processes that can be used to include the principles of sustainability more effectively. Decision mapping conducted at the outset of the project has shown that only a narrow range of criteria currently influence the outcome of asset investment decisions. This paper addresses the concepts of sustainability assessment and presents two case studies that illustrate how multicriteria decision support systems can enhance the assessment of the relative sustainability of a range of options when decisions are being made about wastewater asset investment

    A Tale of Clean Cities: Insights for Planning Urban Sanitation from Ghana, India and the Philippines

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    A Tale of Clean Cities is a research project commissioned by WaterAid to Partnerships in Practice, to learn from the experience of cities in developing countries that are making good progress in planning and providing city-wide sanitation services. San Fernando in the Philippines, Visakhapatnam in India, and Kumasi in Ghana were studied

    Factors Affecting Water Management on the North Slope of Alaska

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    The North Slope of Alaska is undergoing sudden development following the recent discovery of large oil and gas reserves in the area. The water resources of the region should be carefully managed both to ensure adequate supplies of usable water at reasonable cost, and to guard against excessive deterioration of water quality. The likely effects on the environment of man's activities are investigated and found to be poorly understood at the present time. Research priorities are suggested to supply rapid answers to questions of immediate importance. The applicability of a regional management concept to the North Slope waters is considered and the concept is recommended as part of a broad land and water planning philosophy which would emphasize regional control over state and federal control. The use of economic incentives rather than standards for the control of water quality is not recommended at the present time.The work upon which this report is based was supported primarily by funds provided by the Sea Grant Program of the University of Alaska under grant No. 1-36109

    What Works at Scale? Distilling the Critical Success Factors for Scaling Up Rural Sanitation

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    This paper is based on the Knowledge Sharing Forum of the same name. It examines the conditions for success in sanitation programs and strategies that lead to robust implementation in various countries

    Outcome evaluation of research for development work conducted in Ghana and Sri Lanka under the Resource, Recovery and Reuse (RRR) subprogram of the CGIAR Research Program on Water, Land and Ecosystems (WLE).

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    This is the main report of an external evaluation of the Resource Recovery and Reuse Flagship of the Water Land and Ecosystems (WLE) CGIAR Research Program. WLE commissioned the study. The Evaluators interviewed researchers and partners in two countries, Ghana and Sri Lanka, and in Ghana visited two sites. They also interviewed key international partners and analyzed a wide range of documents, reports and publications. The evaluation was focused on understanding how and in what ways the research and other activities carried out by IWMI and supported by WLE contributed to the outcomes. In essence, the purpose was to understand the specific impact pathways from research to outputs and outcomes

    Water in the Green Economy: Capacity Development Aspects

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    This book discusses needs related to capacity development for water resources management, including water supply and sanitation, in the context of the green economy. It showcases theoretical and practical approaches with proven success. Most contributions come from members and partners within the interagency mechanism, UN-Water. The 11 case studies in this book range from innovative design and delivery of capacity development programs related to water in the green economy, market mechanisms, and quality control procedures supporting capacity development success towards the practical implementation of programs to enhance individual and institutional capacity

    Municipal wastewater treatment with pond technology : historical review and future outlook

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    Facing an unprecedented population growth, it is difficult to overstress the assets for wastewater treatment of waste stabilization ponds (WSPs), i.e. high removal efficiency, simplicity, and low cost, which have been recognized by numerous scientists and operators. However, stricter discharge standards, changes in wastewater compounds, high emissions of greenhouse gases, and elevated land prices have led to their replacements in many places. This review aims at delivering a comprehensive overview of the historical development and current state of WSPs, and providing further insights to deal with their limitations in the future. The 21st century is witnessing changes in the way of approaching conventional problems in pond technology, in which WSPs should no longer be considered as a low treatment technology. Advanced models and technologies have been integrated for better design, control, and management. The roles of algae, which have been crucial as solar-powered aeration, will continue being a key solution. Yet, the separation of suspended algae to avoid deterioration of the effluent remains a major challenge in WSPs while in the case of high algal rate pond, further research is needed to maximize algal growth yield, select proper strains, and optimize harvesting methods to put algal biomass production in practice. Significant gaps need to be filled in understanding mechanisms of greenhouse gas emission, climate change mitigation, pond ecosystem services, and the fate and toxicity of emerging contaminants. From these insights, adaptation strategies are developed to deal with new opportunities and future challenges

    Hygiene and Sanitation Software: An Overview of Approaches

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    A review of the state of the art in methods and techniques for sanitation and hygiene behaviour change, and other non-hardware aspects of sanitation programming. Includes introductory text and detailed entries on more than 20 approaches and techniques, with key references, summary information on effectiveness and implementation and an assessment of when different approaches should be used
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