Hydrogen Sulfide (H2S) Monitoring Articles

  • Liquid-gas mass transfer at drop structures

    Over the last decades, considerable progress has been made in the understanding of the sulfur cycle in sewer systems. In spite of a wealth of experimental and field studies that have addressed the release of hydrogen sulfide from free surface flows in gravity sewers and the corresponding air-water mass transfer, little is known about hydrogen sulfide emission under highly turbulent conditions ...


    By IWA Publishing

  • Stripper Wells goes from 1 BBL to 15 BBL for less $100/day

    Feb 2017, Jenfitch, LLC working with a private independent oil service firm from Houston, Texas recently conducted a field study on four different low producing oil wells (Stripper Wells) in Pecos County, TX. These wells were generating 1-2 barrels of oil per day. Using several different methods of injecting JC 9450 into the well, the production increased up to 15 barrels per day for 5 days and ...


    By Jenfitch, LLC

  • Monitoring Gas Emissions from Volcanoes to Predict Volcanic Activity

    To understand and predict the behaviour of volcanoes an increasing number of scientists are combining geological monitoring and geochemical models. By measuring and monitoring the prevalence of gases like CO2, scientists hope to be able to better predict the likelihood of volcanic eruptions. In 2010 Iceland’s Eyjafjallajökull volcano erupted, releasing 250 million ...


    By Edinburgh Instruments Ltd

  • Hydrogen Sulfide Analyzers – Finding the Right Fit for Your Needs

    Monitoring hydrogen sulfide (H2S) levels is critical for air quality, safety and environmental professionals across a multitude of industries. Doing so helps prevent complaints, citations, penalties, corrosion, fires, illness, and even death. ...


    By Arizona Instrument LLC

  • Choosing the Right H2S Analyzer for Your Specific Application

    Not all H2S analyzers are created equal, and certain H2S analyzers work better on different applications than they do others. Significant amounts of time, money and headaches can be saved by learning about the different H2S analyzer principles of operation and choosing the correct analyzer for your ...


    By Analytical Systems Keco

  • Release of hydrogen sulfide in a sewer system under intermittent flow conditions: the Eiceira case study, in Portugal

    The presence and fate of hydrogen sulfide in wastewater systems were studied in two stretches of an intercepting sewer system located in a coastal village, in Portugal. A range of hydraulic parameters were obtained and liquid and gas phase measurements were carried out, both continuously and through intensive sampling campaigns. Upstream, where flow rates were relatively low, dissolved sulfide ...


    By IWA Publishing

  • Case study - CAIROX CR potassium permanganate tablets

    PROBLEM Hydrogen sulfide (H2S) results from septic conditions during the collection and treatment of wastewater. H2S has long been recognized as a major problem for municipal wastewater systems. This colorless gas, known for its rotten egg smell, is produced by the biological reduction of sulfates and the decomposition of organic material. It forms at virtually every point in a system ...


    By Carus Corporation

  • World Water Magazine: Tackling Wastewater Treatment Odors and Hydrogen Sulfide Emissions in the Middle East

    With round-the-year hot temperatures, wastewater treatment facilities in the Middle East have to deal with a wide-range of odor challenges. In addition, high-levels of hydrogen sulfide emissions can be problematic due to excessive heat, and potentially be dangerous to plant employees and neighboring residences. With summertime temperatures often above 100 degrees Fahrenheit, sewage also ...


    By OMI Industries (OMI)

  • High spatial resolution analysis of the distribution of sulfate reduction and sulfide oxidation in hypoxic sediment in a eutrophic estuary

    Bottom hypoxia and consequential hydrogen sulfide (H2S) release from sediment in eutrophic estuaries is a major global environmental issue. We investigated dissolved oxygen, pH and H2S concentration profiles with microsensors and by sectioning sediment cores followed by colorimetric analysis. The results of these analyses were then compared with the physicochemical properties of the ...


    By IWA Publishing

  • 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

  • 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

  • Biogas Check for biomethanol production case study

    Application Research into biomethanol production Equipment Biogas Check - now superseded by the BIOGAS 5000 Location Vietnam Customer Ho Chi Minh City University of ...


    By Geotech

  • Case study - N°NG2 – Natural gas monitoring – energyMedor

    Context & Challenges How to analyze H2S, mercaptans and/or THT for detecting the odor of the gas with the ability to have total organic sulfur calculation in a metering station? Chromatotec Solutions Instrument: energyMedor energyMedor is able to analyze H2S, mercaptans and/ or THT in addition to the calibration ...


    By Chromatotec Group

  • 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 Management Ltd

  • 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 MilliporeSigma

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