water analytics Articles

  • Water Security and the Global Water Agenda. A UN-Water Analytical Brief

    This Analytical Brief aims to provide a starting point for discussion on the range of issues that collectively fall under the umbrella of water security, identifying the challenges that lay ahead, the necessity of relating water security to policy development, and offering possible options for responding to these challenges. It underlines the important role that cooperation will play in ...


    By IWA Publishing

  • Remote automation and analytics for a smart water grid

    Objectives identified by OFWAT include the improvement of day-to-day resilience through the reduction of the number of supply interruptions, sewer flooding and pollution incidents, the reduction of water leakage and introduction of performance commitments specifically on improving resilience to drought and flooding. Recommendations include the assessment of a wide range of options including ...


    By Rotork plc

  • Institutional water reforms in Kenya: an analytical review

    This paper reviews institutional reforms in the Kenyan water sector and their effect on water access. Despite a long history of reforms, a large proportion of the population still lacks access to water. The review showed that reforms during the colonial period gave the colonial government full control of land and water to satisfy the imperial quest for plantation agriculture and further limited ...


    By IWA Publishing

  • An approximate analytical method to size an air vessel in a water supply system

    The size parameters of an air vessel, mainly including its initial gas volume and total volume, account for its performance in hydraulic transients. Traditionally, the size of an air vessel in a given water supply system is estimated by trial and error, usually aided by computers. To simplify the preliminary estimation of the air vessel's volume, in this paper, an approximate analytical method ...


    By IWA Publishing

  • Alderley Analytical - Case Study

    Name: Sally Hannam Job Title: Director of Science Company: Alderley Analytical Ltd Alderley Analytical Ltd is based at the Alderley Science Park Bioanalytics with a touch of Genius Alderley ...

  • Analytical hierarchical process (AHP) as a decision support tool in water resources management

    Despite advances in water conservation, abstraction and transport, water demand has been increasing worldwide in the past few decades. This has resulted in an increased pressure on stakeholders to provide sustainable solutions to meet future water demands. The decision-making process to find those solutions is becoming increasingly complicated. First, owing to the arrival of new technologies or ...


    By IWA Publishing

  • Analytical Devices for the Measurement of Water Vapor in the Natural Gas Process and Transmission Industry

    ABSTRACT The determination of water vapor (and water dew point) is crucial in the processing, custody transfer and transport of natural gas. High levels of water vapor in a natural gas stream can lead to a number of problems which include the formation of hydrates and the contribution to freezing and corrosion of plant and equipment. There are a number of ways of determining the water vapor ...


    By AMETEK Process Instruments

  • Analytical Devices for the Measurement of Water Vapor and Hydrocarbon Dew-Point in Natural Gas

    Introduction The determination of water vapor (water dew point) is crucial in the processing, custody transfer and transport of natural gas. High levels of water vapor in a natural gas stream can lead to a number of problems which include the formation of hydrates and the contribution to corrosion of plant and equipment. Furthermore, water vapor present in natural gas streams affects the ...


    By AMETEK Process Instruments

  • Utilizing analytic hierarchy process (AHP) for decision making in water loss management of intermittent water supply systems

    Increasing water demands, in parallel with water scarcity, force water utilities in developing countries to follow complex operation techniques for the distribution of the available amounts of water. The reduction of water losses from water supply systems can help fill the gap between supply and demand. This strategy is characterized by the variety of options, and identification of the most ...


    By IWA Publishing

  • Analytical Support for Cost-Effective Pollution Control

    ' Analytical tools have been developed by the World Bank Group to estimate rapidly the extent and impacts of pollution in a given situation and to support decisions on pollution management. These tools help decision makers to overcome the frequent lack of data on emissions from different sources, their impact on ambient quality, and mitigation alternatives.' Decision Support System for ...


    By The World Bank

  • Hydraulic Fracturing and the Environment Whitepaper - Analytical and Measuring Instruments

    The recovery of natural gas and oil from untraditional wells is necessary for the economic stability of the United States. Shale gas deposits are deep below the earth’s surface and recovery of gas is expensive and requires millions of gallons of water mixed with chemicals, known as "fracking solution". Most fracking solution stays underground or returns to the surface mixed with formation ...

  • Comparison of commercial analytical techniques for measuring chlorine dioxide in urban desalinated drinking water

    Most drinking water industries are closely examining options to maintain a certain level of disinfectant residual through the entire distribution system. Chlorine dioxide is one of the promising disinfectants that is usually used as a secondary disinfectant, whereas the selection of the proper monitoring analytical technique to ensure disinfection and regulatory compliance has been debated ...


    By IWA Publishing

  • Optimisation of analytical method for estrogen in surface water and primary risk assessment in South Creek

    A very non-polar sorbent, polystyrene-divinyl-benzene (brand: biobeads supplied by BioRad, with 30∼50 mesh) was tested for its extraction efficiency of four target compounds, estrone, estradiol, ethynylestradiol and estriol, from larger volumes (8 l) of water samples. To achieve adequate sensitivity of instrumental analysis by GC/MS, an improved estrogen derivatisation method was developed. For ...


    By Inderscience Publishers

  • Data analytics methodology for monitoring quality sensors and events in the Barcelona drinking water network

    Water quality management is a key area to guarantee drinking water safety to users. This task is based on disinfection techniques, such as chlorination, applied to the drinking water network to prevent the growth of microorganisms present in the water. The continuous monitoring of water quality parameters is fundamental to assess the sanitary conditions of the drinking water and to detect ...


    By IWA Publishing

  • Web-based analytical services improve remediation efficiency

    In this article, Steven Holmes, from analytical services provider ALcontrol, explains how web-based software is helping to ramp up the speed of environmental analysis for remediation contractors such as Sanctus Limited. Background The development of brownfield sites can be more complicated and take longer than other types of building land. However, it is an attractive option ...


    By ALcontrol Laboratories

  • Refinery Sour Water

    The refinery needed to meet the discharge requirements to the local sanitary sewer for the 2,000,000 gallons that was stored. The water is high in sulfides (up to 4,000 ppm) and the limit for discharge was 0.1 ppm. The best and least complicated and costly method uses the Floccin 1105 followed by post ozonation. The results of the finished water are being tested at an EPA certified analytical ...


    By Integrated Engineers Inc.

  • Optimal closure of system actuators for transient control: an analytical approach

    The effect of downstream valve closure scheduling was analyzed to find optimal closure parameters that lead to the minimal maximum pressure head in the water distribution system. Several valve closure strategies were explored, combining the known valve performance curve (change in flow as a function of change in valve's opened area) with unknown valve closure curve (change in valve's opened ...


    By IWA Publishing

  • Method Scaling in Preparative HPLC: Analytical Method & Preparative Method

    VOC:  “I tried to scale up my analytical HPLC method to prep and it didn’t work.” Andy:  This is one of the most common things we hear from chemists wanting to do preparative chromatography. We also hear the following question pretty often too: VOC:  “I have a good analytical HPLC method, how do I scale it to ...


    By Waters Corporation

  • Detection of allergens in processed foods: the next analytical challenge

    Those of us involved in the food allergen analytical community are constantly striving to improve allergen detection methods. One of the areas of focus in recent years has been to investigate how we can enhance the detection of allergens present in processed foods. The majority of the food and drink we consume has been processed or modified in some way, this processing brings about many benefits ...


    By Romer Labs Diagnostic GmbH

  • Water institutional reforms: theory and practice

    ABSTRACT This paper aims to set the stage with an outline of the conceptual, analytical and theoretical aspects of water institutional reforms and a synthesis of the main findings from the reform experiences of six countries: Australia, Chile, Morocco, Namibia, South Africa and Sri Lanka. Utilizing the latest developments in the literature on the subject, this paper presents the analytics of ...


    By IWA Publishing

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