TOC in water Articles

  • TOC analysis at airports

    As other industrial devices airports have to control their run-off weter for TOC and/or COD. The amount of waste water produced at airports is not negligible: The Frankfurt airport (one of the biggest airports in Europe) has produced 1.63 million cubic meters in 2006, the same amount as a medium-sized city. The sewer system of this airport consists of a 200km tubing system with a low quantity of ...


    By LAR Process Analysers AG

  • Organics Monitoring (TOC)

    Total organic carbon (TOC) testing is the traditional method for determining organic matter in water. However there is a far more practical, affordable and often more useful way to measure organic matter. UV absorbance testing (UVA) is rapidly becoming the preferred method of measuring organics even when the levels of organics being measured are very small. Organic Matter Organic ...


    By Real Tech Inc.

  • TOC analyzer for airports

    During winter, de-icing processes at airports necessitate storm water and de-icing water management. Especially due to adhesive (sticky) substances, strongly fluctuating concentrations and a lot of chemicals, the monitoring systems itself must be tailor-made to fight this water analysis challenge. LAR 's ...


    By LAR Process Analysers AG

  • TOC System Suitability Test for Sterile Water

    The United States Pharmacopeia (USP) specifies that total organic carbon (TOC) content be used for management of organic impurity values permitted in bulk purified water, water for injection, in addition to sterile purified water and sterile water for injection. According to USP, TOC analyzers to be used for sterile water must satisfy the TOC system suitability test using test water ...

  • EPA Method 415.3 - Determination of TOC in Source Water and Drinking Water

    Method 415.3 states that the measurement of Total Organic Carbon (TOC) and DOC must use a TOC instrument that oxidizes organic carbon in the water to create carbon dioxide gas, which is then measurable. The instruments are required to use one of two basic oxidation methods – either through combustion with an oxidizing gas, or through chemical oxidation with persulfate promoted by either UV ...

  • Measuring TOC in Brine Solutions

    In the chlor-alkali and electrolysis industries, as well as many others, there is a need to analyze for TOC in samples containing high salt concentrations. These samples can range from sea water, which is typically 3% salt, up to brine solutions containing 28% salt. Shimadzu’s TOC-L with the high salt kit (P/N 638-93176-01 for N model & P/N 638-93176-02 for H model) is well suited for ...

  • Online analysis of TOC, TNb, TP, and COD in water

    The control of waste water treatment plants is of special importance - from an ecological as well as economic point of view. The most common water parameters for controlling and optimization are the total organic carbon (TOC), chemical oxygen demand (COD), total nitrogen bound ( ...


    By LAR Process Analysers AG

  • Protoc TOC succes at Manchester Airport

    The case study outlines the installation of Protoc TOC analysers at Manchester International Airport used for continuous surface water quality monitoring and control. The Protoc TOC instrument manufactured in the UK by Pollution & Process Monitoring Ltd was rigorously tested and was selected for a number of installations at critical drainage locations which have proved the reliability of the ...

  • Real Time TOC Analysis in Steam and Condensate

    Executive Summary Steam in petro/chemical plants could be contaminated with hydrocarbons (TOC = Total Organic Carbons) from various sources. In any case this is a sign for defects in the process, whether it they occur in the heat exchanger, the blow down vessel, the condensate recovery or other parts of the system. Conventional solutions to monitor such contaminations use TOC- ...


    By JCT Analysentechnik GmbH

  • TOC monitoring upstream of paper mill wastewater treatment facility using online TOC analyzer - Case Study

    At wastewater treatment facilities of various types of manufacturing plants, pollution load monitoring (upstream monitoring) is becoming increasingly important to ensure appropriate and stable operation and water pollution accident prevention. Pollution load varies depending on the operating status of the plant, so continuous monitoring is essential. Continuous and stable ...

  • TOC Analysis: The Best Tool in a Drinking Water Facility`s Toolbox

    Total organic carbon (TOC) has become an important water quality analysis tool for drinking water plants in recent years due to its link to disinfection byproducts (DBPs). TOC alone is not harmful, but upon its reaction with a disinfectant can produce harmful byproducts. However, TOC’s relevance in drinking water ...


    By GE Analytical Instruments

  • Application notes: The Sievers InnovOx TOC analyzer: boiler water monitoring

    Background A boiler system is a semi-closed loop system in which water is heated and converted into steam to power a generator. The steam is then allowed to form a condensate and the process is repeated. Boiler water chemistry directly impacts boiler efficiency and fuel use. Improper water treatment allows scale formation and corrosion. Boiler scale and deposits form when impurities ...


    By GE Analytical Instruments

  • Application notes: TOC analysis in a chemical laboratory

    What You Need to Know Analytical laboratories in the chemical industry are routinely tasked with monitoring organics in water across a wide range of applications. For example, organic carbon analysis is being used to: Monitor plant storm water and wastewater Test for condensate system or boiler integrity Enhance cooling and make-up water quality ...


    By GE Analytical Instruments

  • Choosing the appropriate TOC analyzer for your application?

    In choosing a Total Organic Carbon (TOC) analyzer, among the many factors that need to be given consideration are not only the current instruments and their accessories available on the market, but specifically to their method of sample oxidation in relation to the sample matrix. Different oxidation techniques may affect the analytical data due to the components within the sample matrix. This ...


    By Teledyne Tekmar

  • Membranes: TOC reduction using membrane technology

    Honeywell’s Solid State Electronics Centre (SSEC) in Plymouth, Minn., had been trying to reduce the level of total organic carbon (100) in its high-purity deionized water system for many ...

  • New gas calibration method eases TOC analysis

    LAR Process Analysers AG of Berlin,  Germany expanded the range of feaiures of its measuring device QuickTOC, which facilitates the monitoring of ultra pure and cooling water, boiler feed and condensate measurement, and industrial wastewaters. For many years, the Berlin company lias been developing, high quality measuring devices and processes for the TOC analysis of condensates and boiler ...


    By LAR Process Analysers AG

  • Water Monitoring in drinking water plants - The Comparison Between On-Line TOC Analysis and the Permanganate Oxidation Method

    Introduction The role ofthe plants providing water is not restricted to the collection of water from areas where abundantly available and then distribution to the consumer. In reality, it involves a serious commitment to the guarantee of waterwhich is high quality. For this reason, drinking water facilities make use of conditioning plants which are equipped with chemical lab ...


    By Envitech Ltd.

  • Water Quality Changes During 500-Year Flood Controlled with Sievers TOC Analyzer

    During September 20–21, 2009, over 18 inches of rain fell in Acworth, Georgia. The U.S. Geological Survey called this an epic 500-year flood for the area and one of the worst floods in the U.S. during the past 100 years. The flooding caused the local drinking water treatment plant, Cobb County-Marietta Water Authority, to see a rapid decrease in the Allatoona Reservoir source water ...


    By GE Analytical Instruments

  • Calibration stability of the sievers 900 series TOC analyzers

    Objective One of the advantages of the membrane conductivity measurement system employed in the Sievers 900 Series TOC Analyzers, compared to other TOC analyzers, is the excellent stability of the calibration. To illustrate this, a series of tests were conducted on three 900 Series analyzers over the course of a 14-month period and the results are  summarized in this report . The 900 ...


    By GE Analytical Instruments

  • Today’s TOC; Tomorrow’s THMs - How Total Organic Carbon (TOC) Analysis Relates to Disinfection Byproducts such as Trihalomethanes (THMs) and the Corresponding EPA Regulations

    Introduction The US Environmental Protection Agency (EPA) amended the Safe Drinking Water Act (SDWA) in 1996 to balance the risks presented by microbial pathogens and by-products from the disinfectant used to destroy these microbes. The byproducts, called Disinfection Byproducts (DBPs), form from the interaction of the naturally occurring organic matter (NOM) in a treatment ...


    By GE Analytical Instruments

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