water assessment Articles

  • Crumbling Concrete Water Networks Linked to Common Water Treatment Additive

    Concrete distribution and sewer networks are being corroded at an alarming rate partly because of a commonly used additive in the domestic drinking water and wastewater treatment process according to published reports in the journal Science. In countries throughout the world from industrialized nations like Australia and the USA to developing nations like Colombia, Ghana and the Philippines, the ...

  • With its High Pressure Pipeline Environment, Rand Water Provided A Perfect Opportunity to Test New Smartball Insertion And Extraction Equipment

    Rand Water is the largest bulk water utility in Africa and one of the largest in the world, providing bulk potable water to more than 23 million people in Gauteng, parts of Mpumalanga, the Free State and North West - an area that stretches over 31,000 square kilometres. Rand Water’s distribution network includes over 3,300 kilometres of large-diameter pipelines. In 2015 ...


    By Pure Technologies

  • Optimizing Wind and Solar Power in Africa

    Editor's Note: The following is a news release authored by Julie Chao and issued by Lawrence Berkeley National Laboratory on April 5, 2017 To meet skyrocketing demand for electricity, African countries may have to triple their energy output by 2030. While hydropower and fossil fuel power plants are favored approaches in some quarters, a new assessment by the Department of Energy’s Lawrence ...


    By Smart Grid Observer

  • Robust on-line monitoring assay - Case Study

    Alkaline Phosphatase Enzyme Activity Measurement as a Robust on-line Monitoring Assay for Water Quality Assessment. Zina Al-Saar 4th year Intern student Avans University of Applied Science - ATGM Department Joep Appels - Supervisor and Managing Director microLAN on line Bio-monitoring System. ...


    By microLAN B.V.

  • Water Quality Monitoring and Assessment

    The book attempts to covers the main fields of water quality issues presenting case studies in various countries concerning the physicochemical characteristics of surface and groundwaters and possible pollution sources as well as methods and tools for the evaluation of water quality status. This book is divided into two sections: Statistical Analysis of Water Quality Data;Water Quality Monitoring ...


    By IWA Publishing

  • Statewide souce water assessment

    Client: Kansas Department of Health & Environment Completion Date: June 2003 Services Provided Program management Internet tool development GIS with data file integration Education Recruitment Training Public involvement Source water assessments ...


    By Burns & McDonnell

  • Assessment of water loss in Harare, Zimbabwe

    A major challenge facing water utilities is the high level of water losses, which affects the financial viability and adequacy of water in the system. A study was carried out from January to May 2012 to characterize water losses in selected areas of Harare, Zimbabwe. Assessment of the contribution of water leakage to total water loss was carried out through water audits in four selected ...


    By IWA Publishing

  • Assessing social concerns in water tariffs

    In the European Union, water supply services are referred to as ‘services of general interest’, meaning that they are subject to multiple, potentially conflicting, public service obligations. This paper considers empirical data for Portuguese municipalities and provides a comprehensive approach to assessing the social dimension by evaluating whether the concerns of universal access ...


    By IWA Publishing

  • European waters - assessment of status and pressures

    EEA 2012 'State of Europe's water' assessments 2012 is the European year of water in which the European Commission published its 'Blueprint to safeguard Europe's waters' (referred to hereafter as the Blueprint) comprising reviews of the Water Framework Directive (WFD) (2000/60/EC), water scarcity and drought and adaptation to climate change policies. To accompany and inform the blueprint, ...

  • WATER ASSESSMENTS: In Search of Hidden Dividends

    Untitled Document A close look at all aspects of your water- and wastewater-treatment systems can reveal opportunities for cost savings, improved operation, reduced ...


  • Europe`s environment — An assessment of assessments

    The European Environment Agency (EEA) has produced four pan-European 'state of Europe's environment' reports in support of the United Nations Economic Commission for Europe (UNECE) 'Environment for Europe' process (1). Over time, and in conjunction with a host of other reports (including the additional four five-yearly state and outlook reports produced by the EEA for its geographical area (2)), ...

  • Water Quality Assessment and Onshore Development in Tropical Waters

    Standards for bacteriological recreational water quality in Puerto Rico are those proposed by US EPA. The standard for primary contact recreational use has both single-sample limits and running- average threshold limits based on historical data developed for the specific site. La Parguera is the site of a Special Marine Reserve and counts among its unusual habitats a phosphorescent bay, important ...

  • Sharing Transboundary Waters - an integrated assessment of equitable entitlement : the Legal Assessment model

    More than 40 per cent of the world’s population -- including some of the most poverty stricken -- depend upon water that originates in sources beyond their national borders. How can they be assured access to adequate water supply and sanitation if their State is subject to the activities of other sovereign entities? When a transboundary watercourse State (TWC State) uses more than its ...


    By IWA Publishing

  • Assessment of heavy metal pollution in surface water

    A total of 96 surface water samples collected from river Ganga in West Bengal during 2004-05 was analyzed for pH, EC, Fe, Mn, Zn, Cu, Cd, Cr, Pb and Ni. The pH was found in the alkaline range (7.21-8.32), while conductance was obtained in the range of 0.225-0.615 mmhos/cm. Fe, Mn, Zn, Ni, Cr and Pb were detected in more than 92% of the samples in the range of 0.025-5.49, 0.025-2.72, 0.012-0.370, ...

  • New indices for reliability assessment of water distribution networks

    This paper presents new indices to evaluate the reliability of water distribution networks (WDNs) usable in the design, planning and management of these networks. Since the pressure-driven analysis (PDA) of WDNs produces more accurate results than the demand-driven analysis, the new indices are proposed based on the PDA. In the proposed measures, nodal pressures, nodal available discharges and ...


    By IWA Publishing

  • An integrated approach for urban water quality assessment

    This paper introduces an integrated approach for the assessment of receiving water quality and the relative contribution of the urban drainage system to perceived receiving water quality problems. The approach combines mass balances with relatively simple receiving water impact models. The research project has learned that the urban drainage system is only one of the determining factors with ...


    By IWA Publishing

  • Assessment of metrics for resilient design of water distribution networks

    Water distribution networks (WDNs) play a crucial role in the well-being of human populations and economic prosperity. It is essential that they cope with abnormal operating conditions and recover functionality quickly. Traditionally, WDNs are designed using cost and reliability objectives, but there is a lack of consensus on the definition and quantification of reliability which typically is a ...


    By IWA Publishing

  • Assessment of swimmer behaviors on pool water ingestion

    Enteric pathogens in pool water can be unintentionally ingested during swimming, increasing the likelihood of acute gastrointestinal illness (AGI). AGI cases in outbreaks are more likely to submerge heads than non-cases, but an association is unknown since outbreak data are self-reported and prone to bias. In the present study, head submersion frequency and duration were observed and analyzed ...


    By IWA Publishing

  • Assessment of current and emerging practice in corporate water reporting

    Recognizing the urgency with respect to addressing the emerging global water crisis, the UN Secretary-General, in partnership with a number of international business leaders, launched in July 2007 a new initiative – The CEO Water Mandate – under the auspices of the UN Global Compact. The initiative was developed with the understanding that the private sector, through the production of goods and ...


    By Pacific Institute

  • Antiviral pandemic risk assessment for urban receiving waters

    An 80% metabolic conversion of the Tamiflu® pro-drug (oseltamivir phosphate, OP) to its metabolite oseltamivir carboxylate (OC) and a high excretion rate combined with poor removal at sewage treatment works (STWs) means that potentially high STW OC emissions may occur in receiving waters. A risk assessment approach undertaken within the River Lee catchment in North East London indicates that ...


    By IWA Publishing

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