water quality analysis Articles

  • Water Quality Analysis Safeguarding Families

    Water is intensely purified and treated by water authorities before being ready for thousands of families. Everybody expects clean and safe tap water when turning on their taps. A water quality analysis center in Shanghi, China excels in its water testing and analysis with fully automatic potentiometric titration. Traditional Water Quality Analysis In order to ensure water hygiene and safety ...


    By Mettler - Toledo Int. Inc

  • Webinar Highlights: Microfluidics for macromolecules

    Hi, I’m Jim Murphy, Principal Consulting Chemist at Waters, and I recently collaborated with Lucinda (Cohen) Hittle to present an exciting webinar on the use of microflow chromatography for macromolecules.  Lucinda, a Director of Discovery Bioanalytics at Merck, presented an overview of the use of LC-MS for peptide analysis along with various case studies for in vitro and in vivo ...


    By Waters Corporation

  • Risk analysis of seasonal stream water quality management

    Seasonal discharge programs, which take advantage of temporal variation of stream assimilative capacity, are cost effective. However, these seasonal discharge control programs should not increase the risk of water quality violations. A method is presented to estimate the allowable pollutant loads under both seasonal and non-seasonal discharge control programs for a single discharger that ...


    By IWA Publishing

  • Risk analysis of seasonal stream water quality management

    Seasonal discharge programs, which take advantage of temporal variation of stream assimilative capacity, are cost effective. However, these seasonal discharge control programs should not increase the risk of water quality violations. A method is presented to estimate the allowable pollutant loads under both seasonal and non-seasonal discharge control programs for a single discharger that ...


    By IWA Publishing

  • Drinking water quality monitoring using trend analysis

    One of the common quality parameters for drinking water is residual aluminium. High doses of residual aluminium in drinking water or water used in the food industry have been proved to be at least a minor health risk or even to increase the risk of more serious health effects, and cause economic losses to the water treatment plant. In this study, the trend index is developed from scaled ...


    By IWA Publishing

  • Mining Water Quality Application

    Isaac Plains Coal Mine Isaac Plains is an open cut coal mine, in Northern Queensland, Australia. The Isaac Plains Project operates under an Environmental Authority (EA). One of the environmental monitoring requirements which must be met is monitoring water. These include potable water, mine affected water, natural creek flows, water releases, groundwater and the receiving environment. The ...


    By ANDalyze

  • Water Quality Models

    ' In order to determine the impacts of a particular discharge on ambient water quality, it is usually necessary to model the diffusion and dispersion of the discharge in the relevant water body. The approach applies both to new discharges and to upgrading of existing sources. This note provides guidance on models that may be applicable in the context of typical Bank projects.' Introduction ...


    By The World Bank

  • 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

  • Water quality analysis of reservoirs within Western Algeria catchment areas using water quality index CCME WQI

    The present paper aims at determining the status and trends in water quality at Western Algeria reservoirs. The method consists of the computation of Water Quality Index (WQI) on the basis of the physical–chemical quality parameters that were registered at the monitoring stations placed at the reservoirs. This WQI was applied to water quality data collected from 2001 to 2010. Results ...


    By IWA Publishing

  • Analysis of agricultural pollution by flood flow impact on water quality in a reservoir using a three-dimensional water quality model

    This study presents the Yuqiao Reservoir Water Quality Model (YRWQM), a three-dimensional hydrodynamic and water quality model of the Yuqiao reservoir, China. The YRWQM was developed under the environmental fluid dynamics code (EFDC) model and was calibrated and verified to hydrodynamic and water quality data, using two sets of observed data from January 1 to December 31, 2006 and from May 1 to ...


    By IWA Publishing

  • Principles for the application of the cost-effectiveness analysis in water quality sector

    Cost-effectiveness analysis (CEA) provides useful information for the cost and the environmental effectiveness of alternative management options in realising a given environmental goal. The purpose of this paper is to present factors that could be considered essential for the identification of the most cost-effective combination of the measures for water quality management. The reviewed ...


    By Inderscience Publishers

  • Analysis of trends in water quality: constructed wetlands in metropolitan Taipei

    Meandering through the most densely populated metropolitan areas of Taipei, Taiwan, the Danshui River and its tributaries have undergone the construction of 14 wetlands since 2004, as a means to improve water quality. This study was conducted to examine the functional capabilities associated with treating non-point source pollution through these riparian wetlands. Trend analysis was used to ...


    By IWA Publishing

  • Discriminant analysis application in spatiotemporal evaluation of water quality in South Florida

    The discriminant analysis (DA) method was used to differentiate and classify the water quality of three major rivers in South Florida. In this study, DA was used to assess the water quality and evaluate the spatial and temporal variations in surface water quality in South Florida. DA, as an important data reduction method, was used to assess the water pollution status and analysis of its ...


    By IWA Publishing

  • Error analysis for river water quality prediction using back propagation modelling

    The purpose of this research is to describe the errors of Back Propagation (BP) technique that could be applied in river water quality prediction. ANN was trained by using the upriver data to forecast the downriver quality in two approaches of long-distance forecasting and short-distance forecasting respectively. It showed that the predicted results from short-distance approach were more accurate ...


    By Inderscience Publishers

  • Bacteriological water quality compliance and root cause analysis: an industry case study

    Drinking water in England and Wales exhibits high compliance with quality regulations. Severn Trent Water (STW) rarely experiences quality failures, yet approximately half of those that do occur are for bacteriological parameters. There were 218 bacteriological non-compliances across the STW region between January 2008 and December 2011. Thirty nine percent of these were from water treatment ...


    By IWA Publishing

  • Spatial pattern analysis for water quality in free-surface constructed wetland

    Free-surface constructed wetlands are known as a low-energy green technique to highly decrease a wide range of pollutants in wastewater and stormwater before discharge into natural water. In this study, two spatial analyses, principal factor analysis and hierarchical cluster analysis (HACA), were employed to interpret the effect of wetland on the water quality variables (WQVs) and to classify ...


    By IWA Publishing

  • Spatial analysis of water quality using a combination of GIS and statistical software

    GIS-based spatial analysis was combined with statistical analysis to process time varying water quality data. A data model was employed to manage the spatio-temporal data. The spatial data engine of ArcSDE was used to access the database. A data relationship model was developed to perform data communication between GIS and the statistical software. Visual Basic was used to construct links between ...


    By Inderscience Publishers

  • Comparative analysis of the outflow water quality of two sustainable linear drainage systems

    Three different drainage systems were built in a roadside car park located on the outskirts of Oviedo (Spain): two sustainable urban drainage systems (SUDS), a swale and a filter drain; and one conventional drainage system, a concrete ditch, which is representative of the most frequently used roadside drainage system in Spain. The concentrations of pollutants were analyzed in the outflow of all ...


    By IWA Publishing

  • Early warning of changing drinking water quality by trend analysis

    Monitoring and control of water treatment plants play an essential role in ensuring high quality drinking water and avoiding health-related problems or economic losses. The most common quality variables, which can be used also for assessing the efficiency of the water treatment process, are turbidity and residual levels of coagulation and disinfection chemicals. In the present study, the trend ...


    By IWA Publishing

  • Analysis of physico-chemical and bacteriological quality of drinking water in Mafikeng, South Africa

    Mafikeng, the capital of the North West Province, receives water from two sources, namely the Molopo eye and the Modimola dam. Once treated, the potable water is mixed and supplied to the city via distribution systems. This study was designed to assess the quality of drinking water in Mafikeng and also to determine whether the water from the two sources has an impact on the mixed water ...


    By IWA Publishing

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