water analysis Articles

  • 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

  • Why is alkalinity an important parameter in environmental water analysis?

    Answer: Alkalinity is a measure of the acid-neutralizing or buffering capacity of a solution. The properties of water are is easily influenced by alkalinity, making it an important and widely used test. If any changes are made to a solution which could impact pH, alkalinity acts a buffer. This ability to neutralize acid (H+ ions) is what makes alkalinity so ...


    By Camlab Limited

  • 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

  • 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

  • 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 ...


    By Spectro Scientific

  • Case Study - Power Industry

    Electrodeionization Evaluation Programsm (EEP)Applied Water Solutions was contacted by a client who owned the largest EDI System in operation today. They faced numerous challenges including a decline in system performance. Having over 20 years of experience with EDI we understand all the parameters that effect EDI performance, and were able to provide the client with objective recommendations to ...

  • 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, ...

  • The Jordan River basin: at the crossroads between conflict and cooperation

    Several previous manuscripts have identified an opportunity to create a positive–sum outcome for fresh water development and use by the five riparians of the Jordan River basin, in which all parties would receive enhanced resources concurrently, over time. This relies on the development of 'new water' coupled to the more efficient use of the existing water supplies. The application of the ...


    By Inderscience Publishers

  • 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 ...

  • A new systematic technique for retrofit of water network

    This paper presents a new systematic technique for the retrofit of existing water network based on pinch analysis. This technique, which was applied on a paper mill, consists of three main steps: Network Diagnosis, Network Retrofit and Network Evolution. Network diagnosis step provides a good understanding of the existing water network through the use of a new tool called the Concentration Block ...


    By Inderscience Publishers

  • Transboundary water justice: a combined reading of literature on critical transboundary water interaction and ‘justice’, for analysis and diplomacy

    By reviewing and blending two main bodies of research (critical transboundary water interaction analysis and centuries of thought on social justice) this paper seeks to improve international transboundary water interaction analysis and diplomacy. Various implications for transboundary analysis and diplomacy are grouped under themes of equitability, process/outcomes, and structural concerns. ...


    By IWA Publishing

  • Application of Lab-on-a-chip Technology in Water Analysis

    The Important of Water Analysis Water analysis is essential to ensure its quality or to detect pollutants that should be removed by water treatment. However, water quality does not mean making the water suitable for human consumption; it depends on its end use. For example, completely different quality standards are applied in case of industrial water compared to those ...


    By Chemyx Inc

  • Reagents and standards as per standard methods for the examination of water and wastewater 21st Edition 2005, APHA AWWA WEF

    As one of the largest producers of Physical and Chemical Standards and Certified Reference Materials worldwide, Reagecon recognise that the growth in our range and the use of such standards requires an innovative approach to the presentation of our products. Focussing on water analysis, this catalogue details the standards, reagents and indicators for different test methods according to the ...

  • International sailing centre - case study

    Problem: The high week-end and low weekday use of this facility, plus seasonal variations in water usage, led to an increase in detected legionella counts. A solution was required that would be easy to control, simple to retro-fit and would operate equally effectively in periods of high and low usage. Solution: A Tarn-Pure system was installed ...


    By Tarn-Pure Ltd.

  • Outsourcing to Improve Effectiveness, Reduce Cost, and Create Sustainability of Technical Training in the Water and Wastewater Industry

    ABSTRACTA major global chemical company experiencing limited success in the training of global plant personnel outsourced to a professional training services firm, achieving a significant increase in measured learning and a reduction in non-compliance incidents. INTRODUCTIONA major global chemical company was experiencing limited success in the training of global plant personnel in the subject ...

  • Decentralisation, HRD and production efficiency of water utilities: evidence from India

    Decentralisation of water supplies in developing countries is being promoted by international aid agencies. It is argued that decentralisation by a government close to the people will generate better project performance. This article compares the performance of piped water supply schemes run by the state governments and local government in central India and finds that the latter are running less ...


    By IWA Publishing

  • Thermal lens spectrometric determination of ammonium in water samples based on indophenol formation with sodium salicylate

    For the first time, a thermal lens spectrometric (TLS) detection was applied for the determination of ammonium based on indophenol blue reaction. The blue–coloured indophenol was detected following excitation by a krypton laser at 647 nm. The achieved limit of detection (LOD) and limit of quantification (LOQ) were 8 ng/mL and 25 ng/mL, respectively. This represents an improvement of 20 times when ...


    By Inderscience Publishers

  • Merck KGaA, Darmstadt, Germany News on Water 2018, Volume 1

    This volume of News on Water highlights: New ISO Standard 17943 for Determination of VOCs in Water by HS-SPME and GC-MS Extraction of Organic Compounds from Water, Using ENVITM-18 DSK Solid Phase Extraction Disks Watercol columns Certified Reference Materials ready-to-use for water and waste water analysis ...

  • Relationship (or its lack) between population and a water and sanitation service: a study of users' perception in Vitória (ES) Brazil

    The objective of this paper is to identify and analyse the perception of groups of dwellers of Vitória, Espírito Santo, Brazil, regarding their relationship with the water and sanitation service and aspects of water handling. Participants living in four distinct urban districts of the capital city were interviewed in their own houses and the Discourse of the Collective Subject approach was ...


    By IWA Publishing

  • Water Determination in Liquefied Petroleum Gas using GC BID and Ionic Liquid Column Watercol™

    originally published in Supelco®'s Analytix Reporter Journal Issue 2 2018 by Merck KGaA, Darmstadt, Germany Visit SigmaAldrich.com/ar-reg Water in petrochemical feedstocks can cause problems for processors. Freezing of pipe lines and valves and poisoning of expensive catalysts are just a few examples. Monitoring water in petroleum from an upstream source to the downstream processing plant ...

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