Hydrogen Sulfide (H2S) Monitoring Articles

  • How to analyze H2S, All Mercaptans, THT and Total Sulfur for Monitoring Natural Gas or Gaseous Fuels in Metering Stations

    Chromatotec has been pleased to participate to the last issue of Petro Industry News with an article on “How to analyze H2S, All Mercaptans, THT and Total Sulfur for Monitoring Natural Gas or Gaseous ...


    By Chromatotec Group

  • Case study - Measuring gases in AD and landfill – which is the right product for your application

    With over 30 years’ experience in the landfill and biogas sector, Geotech is synonymous with gas analysis, supplying monitoring equipment to over half of the UK biogas and landfill market, with a further 4000 portable gas analysers sold throughout the world.  Geotech’s product portfolio is tailored to satisfy a multitude of environmental monitoring requirements; our clients tell ...


    By Geotech

  • Case study - Geotech’s first GA5000 landfill gas analyser takes 100,000 readings for SUEZ environnement

    Geotech’s first GA5000 analyser, manufactured three years ago, was recently spotted in the company’s calibration rig.  This portable landfill gas monitor was the first production unit of the newly launched GA5000 gas analyser range and has prompted Geotech to look into the analyser’s life since then. The analyser was on its sixth service since manufacture, under ...


    By Geotech

  • Design and Analysis of a High Pressure Ratio Mixed Flow Compressor Stage

    I. Introduction Smaller frontal area and high thrust to weight ratios of mixed flow compressor stage has resulted in its application for small gas turbine engines in aviation sector [1] . The efficiency and reliability of the compressor depends to a great extent on flow behavior in its flow passage and its interaction between impeller and diffuser. The complex turning of the flow not only ...


    By SoftInWay Inc.

  • Case study - Monitoring landfill gas

    Infrared absorption Infrared absorption is usually the preferred method for measuring methane and carbon dioxide. Most gases absorb radiation in the infrared region. The wavelength of radiation that is absorbed is determined by the natural vibration frequencies of the molecule. These natural frequencies will depend on several factors. Thus different gas molecules have different natural ...


    By Geotech

  • Case study - Biogen Greenfinch Westwood

    Non-stop clean power generation uses smart machines and state-of-the-art technology to help keep running. Keep it simple - and to keep it profitable, keep CHP engines running. That's just part of the formula for success at the BiogenGreenfinch-designed and run Westwood anaerobic digestion (AD) plant in Northamptonshire. Built and funded by parent company Bedfordia Group plc this £10 ...


    By Geotech

  • A review of sulfide emissions in sewer networks: overall approach and systemic modelling

    The problems related to hydrogen sulfide in terms of deterioration of sewer networks, toxicity and odor nuisance have become very clear to the network stakeholders and the public. The hydraulic and (bio)chemical phenomena and parameters controlling sulfide formation, emission and their incidences in sewer networks are very complex. Recent research studies have been developed in gravity and ...


    By IWA Publishing

  • Static gas analyser at United Utilities case study

    About the customer United Utilities, Lancaster, England Equipment GA3000 Location United Kingdom Customer United Utilities Requirement The customer required its own precise, detailed and accurate recording of the concentrations of methane (CH4), carbon ...


    By Geotech

  • Mastering the Chaos

    Random packing consists of single pieces that are poured into separation columns and form a chaotic structure. Now, Sulzer has developed a new generation of high-performance random packing that offers more uniformity of surface distribution within the packing volume. The example of a CO2 absorber shows the benefits. Columns with random packing are well established ...


    By Sulzer

  • Analysis of Isocyanates using the ASSET EZ4-NCO Dry Sampler

    Introduction Isocyanates are used as a raw material to produce a number of products such as automotive paints, rigid and spray foam insulation, and furniture. Personal exposure can occur while the products made with isocyanates are being applied, or when the materials are removed by grinding or thermal degradation. Workers who are exposed to these compounds are at risk for respiratory ...


    By Sigma-Aldrich Co., LLC

  • Measuring gases in AD and landfill – Which is the right product for your application?

    With over 30 years' experience in the landfill and biogas sector, Geotech is synonymous with gas analysis, supplying monitoring equipment to over half of the UK biogas and landfill market, with a further 4000 portable gas analysers sold throughout the world.  Geotech's product portfolio is tailored to satisfy a multitude of environmental monitoring requirements; our clients tell us the ...


    By Geotech

  • Measuring gases in AD and landfill – Which is the right product for your application?

    With over 30 years' experience in the landfill and biogas sector, Geotech is synonymous with gas analysis, supplying monitoring equipment to over half of the UK biogas and landfill market, with a further 4000 portable gas analysers sold throughout the world.  Geotech's product portfolio is tailored to satisfy a multitude of environmental monitoring requirements; our clients tell us the ...


    By Geotech

  • Chemical Cleaning and Decontamination of Refinery and Petrochemical Distillation Equipment

    1. Abstract In refineries and petrochemical plants the equipment needs to be checked during planned shutdown. This can require several weeks of downtime, if columns, vessels, heatexchangers and tanks have to be drained to remove deposits and armful gases such as hydrogen sulfide, benzene and other volatile hydrocarbons. Formation of iron sulfide is very common in oil refineries and ethylene ...


    By Kurita

  • Case Study: Liz Bagshaw on the IRC sensors

    Our infrared IR’C sensors have been making waves in the world of glacial meltwater monitoring. Glacial environments are key indicators of global warming and climate change. They’re also home to a diverse range of microorganisms. Both of these need to be quantified and monitored, but doing this isn’t easy because of the cold, remote environments in which they are found. To combat ...


    By Partech (Electronics) Ltd.

  • The importance of maintaining your fixed gas analyser

    Plant technicians rigorously check for contaminates within the digester and ensure that the performance is optimised but maintaining the gas analyser monitoring the whole process is often overlooked.  Many analysers are used in harsh and potentially explosive environments and so it is of paramount importance that the operation runs smoothly and safely. With simple maintenance of your ...


    By Geotech

  • Chlorine Dioxide gas detection: A comprehensive guide

    Introduction Some years agoago, the bleaching process in the paper industry was changed from using Chlorine (Cl2) as bleaching agent to Chlorine dioxide (ClO2). This was a challenge forThis posed a major challenge to industrial hygienists, as there were no sensors or detectors available that were specific to Chlorine dioxide: There was no sensor technology for gas detectors available that ...

  • Wastewater force main management – internal corrosion survey using inline methods

    In our first post about Wastewater Force Main Management, we looked at how preliminary analysis helps operators develop a plan for managing their system. After completing this process, operators can begin putting the plan into action with preliminary surveys on specific force mains. For those at WEFTEC, you can visit Pure ...


    By Pure Technologies

  • When Capability is Critical

    The measurement and control of contaminants in natural gas pipeline systems are crucial to maintaining safe, reliable transport and consistent quality final product. Contaminants that require continuous analysis include total sulfurs (primarily hydrogen sulfide, or hLS), water vapour, carbon dioxide (C02) and heavier hydrocarbons (as hydrocarbon dew point temperature). The water ...

  • Taming Taste & Odor (T&O) Problems - Case Study

    Some taste and odors are caused by mineral constituents in the water, e.g. excess chlorine and hydrogen sulfide. However the majority of taste and odor are the result of biologic activity. Spring turnover of lakes and algal blooms are responsible for Blue-green algae (Cyanobacterium), Green algae and diatoms that introduce filter clogging organisms that also foul anion exchange resins, degrade ...


    By Jenfitch, LLC

  • Seasonal and influent characteristic effects on hydrogen sulfide generation at a water reclamation plant

    Correlations between sulfide generation and seasonal influent wastewater characteristics were identified based on a long-term monitoring program in summer and winter at a water reclamation plant. During summer, the emission rates of hydrogen sulfide (H2S) from the liquid treatment processes increased substantially compared to those during winter due to the increased wastewater temperature. The ...


    By IWA Publishing

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