water analysis Articles

  • Water Treatment Optimization - Case Study

    Drinking water treatment in North America has stringent requirements for effluent water quality, with a great amount of attention being drawn to the presence of hazardous disinfection by-products (DBPs) persisting through water distribution systems. The operation of water treatment plants involves addition of various mixing agents to help with coagulation and settling of organics in the raw water ...


    By MANTECH

  • A quick guide to oil analysis for engine test applications

    Reliability testing is a very important component of new engine development. Engineers need to fully understand and chart the engine lifetime performance under a variety of conditions before mass production may be considered. Many important performance data parameters are collected in real time through the many different types of sensors that are connected to the engine in the test cell and oil ...


    By Spectro Scientific

  • Water analysis

    A complete tap water analysis includes the determination of the pH value, the alkalinity and the total water hardness. Both the pH measurement and the pH titration by means of a standard pH electrode suffer from several drawbacks. First, the response time of several minutes is too long and, above all, the stirring rate significantly influences the measured pH value. Unlike these standard pH ...


    By Metrohm AG

  • Controlling Parameters in Water Analysis

    The COD (Chemical Oxygen Demand) is one of most important parameters in water analysis. In Germany as in nearly all European countries tax for indirect discharges is based on the COD. Using the oxygen consumption is reasonable in the case of tax because the delay time of waste water in a treatment plant depends mainly on its biological activity. The oxygen consumption again is a degree of ...


    By LAR Process Analysers AG

  • Drinking Water Analysis Guide

    Public Water Systems (PWS), regulated by the United States Environmental Protection Agency (USEPA), provide drinking water to 90% of Americans. Water systems and laboratories testing drinking water for Safe Drinking Water Act (SDWA) compliance must be certified and must use USEPA approved methods, which are developed by the USEPA, other government agencies, universities, consensus method ...

  • Techniques for Oil in Water Analysis

    The people responsible for conducting oil in water measurements understand that the measurement can be quite challenging. Wastewater from different sources can contain many different types of hydrocarbons, each with different chemical make-ups. On top of the lack of chemical uniformity in different oils, there has been a ...


    By Spectro Scientific

  • An Analysis of Water Governance in Kibera, Kenya

    Abstract Populations in urban slums continue to rise due to the relatively affordable shelter provision. Most slums are neither planned nor formal and therefore lack basic service delivery. Despite the fact that the majority of inhabitants in these slums are low-wage earners, they are forced to pay more for basic needs such as water than their neighbours in ‘affluent’ and ‘well-to-do’ ...


  • Microdisk arrays for peroxide analysis in water

    Hydrogen peroxide (H2O2) and peracetic acid (PAA) are used as bleaching and disinfecting agents. The bactericidal and al-gaecidal properties of peroxides [1] and the advantage that they decompose into harmless residues, make them suitable for a broad range of applications, including oxidizing and bleaching agents in laundry formulations, sanitization of food equipment, paper bleaching and medical ...


  • Solvent-free oil-in-water analysis

    Non-ionic surfactants can homogenize oily, produced water samples, creating optically clear microemulsions that are ideal for fluorescence measurements [1]. The use of surfactants to reduce fouling and improve the performance of on-line, fluorescence-based, oil-in-water monitors has been reported previously [2,3]. This paper describes the use of surfactants to prepare discrete water samples ...

  • Comparing Oil in Water Analysis Methods

    Wilks Enterprise has published a new White Paper that discusses various oil in water methods and their correlation with regulatory methods. While the amount of oil in water is highly regulated -- it can also be a challenging measurement.  It is complicated by the fact that oil comes in many forms and the measurement is defined by the particular regulatory method.  When EPA 1664 is ...


    By Spectro Scientific

  • Life Cycle Analysis of Water Networks

    Abstract Water authorities around the world are faced with the problem of ageing distribution networks and often only limited historical data on which to base a sound long term, cost efficient replacement policy. The LICAN approach to whole of life costing is introduced and a hypothetical case study is used to demonstrate the importance of such an approach. A selection of pipe networks ...


    By TRIC Tools Inc.

  • 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

  • Bromate analysis analysis of bromate in drinking water by hplc and post-column derivatization

    Bromate is a disinfection by-product that is formed when Ozone reacts with naturally occurring Bromide in drinking water. Bromate is a known animal carcinogen and has also been listed as a group 2B toxin: probable human carcinogen. The U.S. EPA Method 300.1 employs conductivity as the means of detection which works well for most anions. However, the method is nonspecific and coeluting ...


    By Pickering Laboratories, Inc.

  • Mercury Analysis

    Characteristics of Mercury What is Mercury? Mercury is a naturally occurring silver-colored metallic element noted for its occurrence as a liquid at room temperature and toxic to living organisms. This silvery, opaque liquid metal is very dense, yet has a high surface tension that causes it to form tiny perfect spheres in the pores of the rocks it is found in. It is ...


    By HORIBA Europe GmbH

  • Analysis of flushing-path effects in water-distribution networks

    The unidirectional and conventional flushing methods are compared in this study and the water amount and flow velocity at junctions within an EPANET water distribution network are compared. In the unidirectional method, the necessary flow and water pressure for the minimum flow velocity for flushing become greater when pipe diameter exceeds a certain value. Therefore, the maximum length of ...


    By IWA Publishing

  • Analysis of PCB in water using the envirogard test system

    MATRIX: Water ANALYTE: PCB LIMIT OF DETECTION: Aroclor 1248: 1 ppm Aroclor 1260: 2 ppm Aroclor 1242: 2 ppm Aroclor 1254: 1.1 ppm BACKGROUND: This application describes a field screening method for determining PCB concentrations in water. A chemical reaction is induced that causes a color change ...


  • Indian Water Purifier Market 2014 Analysis

    This latest market research report titled Water Purifier Market in India 2014 states that the domestic water purifier market is set to experience steady growth as people are becoming more aware of the utility of water purifiers in India. As initial consumer reactions and water purifier reviews have been largely positive, the adoption of the same will only improve over the years. Also, the market ...


  • River water pollution in Indonesia: an input-output analysis

    Data from global environmental monitoring activities have shown alarming environmental conditions in many developing countries. Environmental policies that could improve the environment significantly, while at the same time maintaining the growth of economic activities are needed. Using an input-output analysis, this paper researches such policies with a view to applying them to Indonesia's river ...


    By Inderscience Publishers

  • Global Water Utilities Industry 2019 Forecasts Analysis

    Global Water Utilities industry guide provides top-line qualitative and quantitative summary information including: market size (value and volume 2010-14, and forecast to 2019). The guide also contains descriptions of the leading players including key financial metrics and analysis of competitive pressures within the market. Features and benefits Save time carrying out ...


  • An enquiry into the place of systems analysis in the politics of water and the environment

    In many jurisdictions, the participation of stakeholders in decisions concerning their environment, and their water environment in particular, is still carried out, if at all, on an ad hoc basis. This paper envisions a legislative structure that allows a natural participation by the people in decision-making. While systems analysis and models may inform opinion in the ideal Legislature, ...


    By IWA Publishing

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