water analysis Articles

  • Monitoring of typical pumps and aerator in a water treatment plant

    The wireless vibration network of Wi-care system consists of the communication between three components; the transmitter, the range extender and the receiver. The transmitter is fixed on the machine and transmits the vibration and the temperature data at the measurement point. The second element of the Wi-care wireless network is the range extender, its function is to transmit vibration and ...


    By Wi-Care

  • Using FTIR spectroscopy to measure hydrocarbon pollution in water

    According to the World Health Organization (WHO) and UNICEF’s 2015 Progress on Sanitation and Drinking Water report almost 700 million people around the world don’t have access to clean drinking water [1]. Poor water quality is beginning to return to the developed world too. The strain of population growth, intensified agricultural practices and continued industrial expansion have are ...


    By Specac Limited

  • How Not to Lose Cadmium While Measuring?

    Today cadmium finds a better usage than a hundred years ago. For example, metal cadmium plating is used for anticorrosion coatings that are more stable than zinc, nickel and tin-plated. Cadmium plating of steel parts gives greater resistance to corrosion, especially in sea water. About 20% of cadmium goes to the manufacture of cadmium electrodes used in ...


    By Lumex Instruments Group

  • 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

  • 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

  • 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 ...

  • 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 ...

  • 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

  • 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

  • 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

  • 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 ...


  • On line analysis of organic in water case study

    Introduction On line chemical analysis has been developed significantly thanks to digital electronics' use of microprocessors together with the application of sophisticated and accurate analytical techniques. The result of this combination is readily available technology which allows for on line performance of almost any analytical determination for quality control which is ...


    By TOC Systems, Inc.

  • Spatial analysis of rural drinking water supply in China

    A spatial autocorrelation analysis method was employed to process the spatial change of rural water supply over the past 19 years in the People's Republic of China. Statistical analyses indicate great achievements in rural water supply construction. Two main indices describing rural drinking water supply status, the Rural Popularization Rate of Tap Water and the Rural Popularization Rate ...


    By IWA Publishing

  • Exergy analysis of an ammonia?water absorption system

    Exergy analysis of an ammonia?water absorption system for cooling applications is presented in this paper. Exergy destruction rate and heat rate in each component of the system are evaluated. From the results obtained it can be concluded that the evaporator and condenser heat loads and exergy destruction rate are less than those of the absorber and generator. This is due to the heat of mixing in ...


    By Inderscience Publishers

  • 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

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