total organic carbon analyzer Articles

  • City of Houston Total Organic Carbon - Case Study

    ABSTRACT The City of Houston, Texas has been aware of the implications that current and pending regulatory standards would have on the operation of their four surface water treatment facilities. In particular, the City has closely monitored changes in regulations related to enhanced coagulation, total organic carbon (TOC) removal, and disinfection by-products (DBP) reduction. The ...


    By TOC Systems, Inc.

  • 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

  • New Green Methodology for Measuring Total Organic Carbon (TOC) — Supercritical Water Oxidation (SCWO)

    Analyzing the total organic carbon (TOC) content of industrial wastewater, process influent and effluent water, and environmental water samples can be very challenging. These aggressive sample matrices often clog or damage TOC analyzers that use the combustion method. This can result in expensive preventive maintenance and excessive non-regenerative waste. To address these critical issues, GE ...


    By GE Analytical Instruments

  • Organics Monitoring: A Practical Guide

    Preventing product loss, lowering waste treatment costs, and reducing system maintenance and energy consumption through organics monitoring in the chemical, refining, food, and wastewater treatment industries. Summary Process water and steam condensate contamination includes organic, inorganic, and biological components. Sources of organic contamination include process ...


    By GE Analytical Instruments

  • A comparative study of three different assimilable organic carbon (AOC) methods: results of a round-robin test

    Easily assimilable organic carbon (AOC) is frequently used for the assessment of the biological stability of drinking water, which is an important consideration in the control of bacterial growth in distribution networks. The first AOC bioassay was developed in 1982 and is based on growth of two bacterial strains (Pseudomonas fluorescens P17 and Spirillum spp. NOX) in ...


    By IWA Publishing

  • Case study - Cost-saving solutions using Sievers InnovOx TOC analyzers - optimizing organic loading

    Cost Concern  A company’s inability to recognize real-time organic loading changes in their wastewater treatment plant could result in excessive charges from the local water utility. Company Challenge A production facility located in the U.S. Midwest currently controls the organic loading in their wastewater’s chemical treatment ...


    By GE Analytical Instruments

  • Removal of dissolved organic matter (DOM) from water with activated carbon and effective microorganisms

    Humic substances (HS) cause problems in water purification because of disinfection by-product (DBP) formation during chlorination. The efficiency of activated carbon (AC) adsorption as a method in drinking water treatment has been investigated in removing HS at different pH values (pH = 5; 6; 7; 8) in static equilibrium experiments. The degradation of HS was studied with an EM (effective ...


    By IWA Publishing

  • 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

  • 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.

  • 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

  • Introducing a New ASTM Method for the Determination of Total Nitrogen, and TKN by Calculation, in Water Samples

    The USEPA Clean Water Act (CWA) requires national approval for all methods used for CWA compliance. There are approved methods for the determination of inorganic nitrogen (NO3-N, NO2-N, and NH3-N), and for organic nitrogen (TKN – NH3-N)2. There are no EPA approved methods for the determination of total nitrogen although it is a required parameter in many USEPA permits, including monitoring ...

  • Indications for soil carbon saturation in a temperate agroecosystem

    The soil C saturation concept postulates that there is an upper limit to the equilibrium soil C level of mineral soils even when soil C input is increased. To test this concept, we analyzed the relationship between steady-state soil C input and soil organic C (SOC) concentration in a temperate corn (Zea mays L.) agroecosystem experiment located in Lexington, KY. In this experiment, a gradient in ...

  • peCOD is the New NOM Monitoring Tool for Measuring Organic Reactivity - Case Study

    Natural organic matter (NOM) is a critical parameter for measuring drinking water quality.  Levels of NOM are associated with taste, odour, colour, chemical treatment dosage, and disinfectant by-product (DBP) formation.  There are several tools accepted by drinking water quality experts which are used to evaluate NOM: total organic carbon (TOC), dissolved organic carbon (DOC), UV254, ...


    By MANTECH

  • Analyzer underpins growth of container inspection company

    After a career as a customs officer in the Netherlands, Wim van Tienen was well aware of the toxic gas hazards presented by some freight containers, so in 2009 he started a company, Van Tienen Milieuadvies B.V., offering gas analysis and safety advice. The company grew quickly and now employs 23 staff. Wim attributes a large part of this success to the advanced FTIR gas detection and analysis ...


    By Gasmet Technologies Oy

  • Case study - Sievers 900/5310 C series TOC analyzers — calibration

    Synopsis The Sievers* 900 and 5310 C Series TOC Analyzers incorporate a number of new features and options designed toimprove the accuracy and linearity of the TOC measurements. Three new calibration options are available in the Analyzers: automatic conductivity offset, automatic TOC autozero, and single- or multipoint calibration of the TC and IC channels Conductivity ...


    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 Note: Wastewater Neutralization Process Using the Sievers InnovOx TOC Analyzer

    Industrial wastewater is a result of manufacturing, agricultural, environmental, and research activities. Managing the treatment and discharge of industrial effluents is a critical process that ensures compliance with regulatory ordinances, upholds public health and safety, and guarantees the protection of natural and public resources. Classical processes are typically employed to deal with ...


    By GE Analytical Instruments

  • Ecotoxicity comparison of organic contaminants and heavy metals using Vibrio-qinghaiensis sp.-Q67

    By using the Vibrio-qinghaiensis sp.-Q67 test, the concentration-inhibition relationships were established for comparing the ecotoxicity of selected organic compounds and heavy metals. The toxicity indices for the four organic compounds were 11–628 mg/L in terms of EC50,TOC (EC: effective concentration, TOC: total organic carbon), with the toxicity in an order of linear ...


    By IWA Publishing

  • Unexpected toxicity to aquatic organisms of some aqueous bisphenol A samples treated by advanced oxidation processes

    In this study, photocatalytic and catalytic wet-air oxidation (CWAO) processes were used to examine removal efficiency of bisphenol A from aqueous samples over several titanate nanotube-based catalysts. Unexpected toxicity of bisphenol A (BPA) samples treated by means of the CWAO process to some tested species was determined. In addition, the CWAO effluent was recycled five- or 10-fold in order ...


    By IWA Publishing

  • Application note: The Sievers InnovOx TOC Analyzer: Wastewater Monitoring

    Overview Wastewater is used water. It can include substances such as human waste, food scraps, oils, soaps, and chemicals. Manufacturing industries as well as wastewater municipalities must comply with the United States Environmental Protection Agency’s (USEPA) Clean Water Act (CWA) regulations. In order to discharge treated wastewater and be compliant with the CWA, a ...


    By GE Analytical Instruments

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