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h2s monitor Applications

  • Hydrogen Sulfide (H2S) monitoring

    Hydrogen sulfide is the chemical compound with the formula H2S. H2S is colorless, toxic and flammable and is responsible for the foul odour of rotten eggs and flatulence. Hydrogen sulfide often results from sulfur reducing bacteria in nonorganic matter (in the absence of oxygen), such as in swamps and sewers (anaerobic digestion). H2S also occurs in volcanic gases, natural gas and some well waters.

    By Ecotech Pty Ltd based in Knoxfield, AUSTRALIA.

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    Waste water treatment plants Personnel Safety & H2S filter management

    Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions. As a result of the confinement of the waste water stations, toxic components such as H2S and Methylmercaptan increased. Safety of employees on such working sites has therefore become of major problem. To fight this hazardous pollution, air filtering systems have been installed. For the station managers, personal safety coupled with the need for constant air quality control and filter change has been a heavy task.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Measurement of hydrogen sulfide & carbon disulfide in air for continous emission monitoring

    The Series 8900 Hydrogen Sulfide and Carbon Disulfide Analyzer provides direct measurement of H2S and CS2 in ambient air. This instrument is utilized for continuous emission monitoring. The Series 8900 H2S and CS2 Analyzer employs a Photoionization detector (PID) as the sensing element. A dual column configuration with timed backflush to vent is used to strip off moisture and heavier hydrocarbons. A pre-cut column is used in series with the analytical column. At sample injection a fixed volume of sample is carried to the pre-cut column. Backflush is timed so that only the H2S, CS2, and other similar components are eluted to the analytical column. Contaminants on the pre-cut column are backflushed to vent. H2S and CS2 are separated from potentially interfering components on the analytical column and elute to the detector for analysis.

    By MOCON, Inc. - Baseline based in Lyons, COLORADO (USA).

  • Total Reduced Sulfur (S) monitoring

    Total reduced sulfur(s), which include hydrogen sulfide (H2S), methyl mercaptan (methanethiol, CH3SH), dimethyl sulfide (CH3SCH3), and dimethyl disulfide (CH3S2CH3), occur naturally in the environment and can also be present in numerous industrial gaseous streams – petroleum refining, natural gas extraction, and chemical operations like the pulp/paper industry. Hydrogen sulfide is the most prevalent of the total reduced sulfurs, and is commonly found in volcanic gases, marshes and swamps, wetlands and mud flats, sulfur springs and decaying organic matter. Additionally, hydrogen sulfide is produced by living organisms, including human beings, through the digestion and metabolization of sulfur-containing materials. It must be noted that sulfur dioxide (SO2), sulfur trioxide (SO3) and sulfuric acid mist are not included in the determination of TRS, as these are oxidized sulfur compounds and are permitted and monitored separately from TRS.

    By Ecotech Pty Ltd based in Knoxfield, AUSTRALIA.

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    Waste water treatment plants Air quality control by TRS MEDOR Online Odor Monitoring

    ontext & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions. Odors are very distinct air contaminants as they generate nuisances. The factors playing a role in the determination of odor annoyance are: odor concentration and intensity, frequency, appreciation, duration, synergy and location. CHROMATOTEC® proposes an automatic solution to well identify the origin and the level of odors.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Waste water treatment plants Air quality control by TRS MEDOR

    Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions. At the entrance of the waste water plants, where the waste water arrives, strongly smelling and polluted air is captured and neutralised by a chemical cleaning process called ‘’Stripping’’. The correct amount of chemical products needed to neutralise the polluted air has to be calculated.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Waste water treatment plants Screening area: stripping

    Context & Challenges Globally, the wastewater treatment is the first public health issue. Urban development leads to urbanization near waste water treatment plant and extension of sewerage network. These aspects induce to an augmentation of sulfur compounds (H2S, mercaptans and sulfides) which are very corrosive, odorant and toxic. To monitor this compounds online CHROMATOTEC® offers high meteorological solutions. To ensure the safety of operatives in the screening building/area of waste water treatment works an H2S analyzer has been installed in the main building to complement the protection provided by individual monitors. Chromatographic measurements show that other sulfurous compounds including Methylmercaptans are present in the air in addition to H2S.

    By Chromatotec Group based in Val de Virvée, FRANCE.

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    Measurement solution for hydrogen fuel cell testing

    As the alternatives to fossil fuels for power generation and automotive power become more widespread and preferred, so has increased the research and testing of hydrogen gas in fuel cells. The hydrogen (H2) gas used in fuel cell has to be free of impurities in order to make the fuel cell as efficient as possible and so quality thresholds have been set in legislation. Such legislation as SAE J2719 provides hydrogen fuel quality standards for proton exchange membrane (PEM) fuel cell vehicles. If impurities above these thresholds are present in the H2 fuel then there is a risk of not only making the cell inefficient, but also unrecoverable back to its peak operating voltage as the fuel cell electrode becomes poisoned.

    By Protea Limited based in Middlewich, UNITED KINGDOM.

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    Aqua M300 Intelligent Geophone

    With the Aqua M300 leak detectors have a multifunctional tool to Pinpoint or Pre-locate leakages and to trace pipes in conjunction with a PWG. The biggest advantage compared to other related products are the 256 analogue and digital filters which enables the user to shut off disturbing noises very precisely. Also the extension for H2 tracer gas comes without competition and makes this device a essential tool for leak detectors.

    By F.A.S.T. GmbH based in Langenbrettach, GERMANY.

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    Gas analysis & monitoring system for biogas analysis

    “Biogas” means a mixture of various types of gas (mostly methane) produced by bacterial fermentation in anaerobic conditions(absence of oxygen) of organic residues from waste, decaying plant, carcasses in putrescence. The analyzers of biogas by Infrared cells carry out the continuous analysis of CH4, O2, CO2, H2S and NH3. The whole process sees the decomposition of organic material by some types of bacteria, producing carbon dioxide, molecular hydrogen and methane(methane conversion of organic compounds).

    By ETG Risorse e Tecnologia based in Montiglio, ITALY.

  • Agricultural, Storm and Highway Runoff

    The ability to collect useful data about sediment transport and other pollutants closely coupled to SSC (such as nutrients, e-coli, phosphates and nitrates) is dependent on the timing and frequency of manual grab samples during run-off events. Most sediment and pollutant is transported during a small number of storm events which are infrequent and unpredictable. When they do occur, trained personnel or the proper equipment may not be available to collect grab samples. An automated pump sampler can eliminate the need to sample manually, but for the expense of a rechargeable power system, the autosampler, and possibly a datalogger and a typical turbidity probe, you’re no better off. With an automated pump sampler driven by the DTS-12 digital turbidity sensor and controlled by the Axiom H2 datalogger, you obtain a better understanding of the water’s quality, while taking a minimum number of samples, reducing site visits and saving lab analysis costs.

    By FTS based in Victoria, BRITISH COLUMBIA (CANADA).

  • Fragrance Fingerprinting

    Hiden gas analysis systems provide for high sensitivity, wide dynamic range, real-time analysis of almost any gas & vapour. Hiden’s application specific gas analysis systems are tailored to meet the specific application requirements, & include a range of special sampling, vacuum pumping & vacuum accessories. Hot zone sampling accessories are included for evolved gas analysis from furnaces, and thermo gravimetric analysers, TGA, for example. Thermal analysis methods are vital for catalysis characterization. For thermal analysis including TPD/TPO/TPR, studies, Hiden gas analysis systems include enhanced pumping for hydrogen and special close coupled sampling to the TPD/TPO/TPR reactor for optimum thermal analysis response. In Biogas applications the simultaneous analysis of H2S, CO2, water vapour and CH4 in the PPM to 100% concentration range provides vital information for process development and process monitoring.

    By Hiden Analytical based in Warrington, UNITED KINGDOM.

  • Exhaust Gas Emissions

    Hiden gas analysis systems provide for high sensitivity, wide dynamic range, real-time analysis of almost any gas/vapour. Hiden’s application specific gas analysis systems are tailored to meet the specific application requirements, & include a range of special sampling, vacuum pumping & vacuum accessories. Hot zone sampling accessories are included for evolved gas analysis from furnaces, & thermo gravimetric analysers, TGA, for example. Thermal analysis methods are vital for catalysis characterization. For thermal analysis including TPD/TPO/TPR studies, Hiden gas analysis systems include enhanced pumping for hydrogen and special close coupled sampling to the TPD/TPO/TPR reactor for optimum thermal analysis response. In Biogas applications the simultaneous analysis of H2S, CO2, water vapour & CH4 in the PPM to 100% concentration range provides vital ininformation for process development and process monitoring...

    By Hiden Analytical based in Warrington, UNITED KINGDOM.

  • Microbial Studies

    Hiden gas analysis systems provide for high sensitivity, wide dynamic range, real-time analysis of almost any gas/vapour. Hiden’s application specific gas analysis systems are tailored to meet the specific application requirements, & include a range of special sampling, vacuum pumping & vacuum accessories. Hot zone sampling accessories are included for evolved gas analysis from furnaces, & thermo gravimetric analysers, TGA, for example. Thermal analysis methods are vital for catalysis characterization. For thermal analysis including TPD/TPO/TPR studies, Hiden gas analysis systems include enhanced pumping for hydrogen & special close coupled sampling to the TPD/TPO/TPR reactor for optimum thermal analysis response. In Biogas applications the simultaneous analysis of H2S, CO2, water vapour & CH4 in the PPM to 100% concentration range provides vital information for process development and process monitoring.

    By Hiden Analytical based in Warrington, UNITED KINGDOM.

  • Gas Analysis Systems for Catalysis, Thermal Analysis, Fermentation and Bio Fuels

    Hiden gas analysis systems provide for high sensitivity, wide dynamic range, real-time analysis of almost any gas and vapour. Hiden’s application specific gas analysis systems are tailored to meet the specific application requirements, and include a range of special sampling, vacuum pumping and vacuum accessories. Hot zone sampling accessories are included for evolved gas analysis from furnaces, and thermo gravimetric analysers, TGA, for example. Thermal analysis methods are vital for catalysis characterization. For thermal analysis including TPD/TPO/TPR, studies, Hiden gas analysis systems include enhanced pumping for hydrogen and special close coupled sampling to the TPD/TPO/TPR reactor for optimum thermal analysis response. In Biogas applications the simultaneous analysis of H2S, CO2, water vapour and CH4 in the PPM to 100% concentration range provides vital information for process development and process monitoring.

    By Hiden Analytical based in Warrington, UNITED KINGDOM.

  • Beverage Analysis

    Hiden gas analysis systems provide for high sensitivity, wide dynamic range, real-time analysis of almost any gas/vapour. Hiden’s application specific gas analysis systems are tailored to meet the specific application requirements, & include a range of special sampling, vacuum pumping and vacuum accessories. Hot zone sampling accessories are included for evolved gas analysis from furnaces, & thermo gravimetric analysers, TGA, for example. Thermal analysis methods are vital for catalysis characterization. For thermal analysis including TPD/TPO/TPR studies, Hiden gas analysis systems include enhanced pumping for hydrogen and special close coupled sampling to the TPD/TPO/TPR reactor for optimum thermal analysis response. In Biogas applications the simultaneous analysis of H2S, CO2, water vapour & CH4 in the PPM to 100% concentration range provides vital information for process development and process monitoring

    By Hiden Analytical based in Warrington, UNITED KINGDOM.

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