sulfur analyser Articles

  • SPME/GC Analyses of Sulfur Gases and VOCs, Using a Carboxen/PDMS Fiber

    Sample extraction of sulfur compounds and VOCs by traditional methods can be difficult and expensive. Typically, sulfur analysis requires concentration of the gas using adsorbent tubes containing carbon adsorbents. Analysis by such means, however, requires the use of an expensive thermal desorption unit to heat the tubes before transferring the gases to a gas chromatograph. Analysis of VOCs ...


    By MilliporeSigma

  • Analyzing sulfur in soil and sediment with handheld XRF

    Background Sulfur creates more than nasty odors. Exposure to low levels (0-10ppm) of hydrogen sulfide (H2S) causes irritation of eyes, nose, and throat; higher levels can cause headaches, dizziness, nausea and vomiting, coughing, and breathing difficulty. H2S and numerous other odor-causing compounds are generated as a result of organic material decomposition. In the case of the Muddy River in ...

  • EPA establishes new 1-hour standard for sulfur dioxide

    On June 2, 2010, the U.S. EPA established a new 1-hour primary National Ambient Air Quality Standard (NAAQS) for sulfur dioxide (SO2). The new 1-hour standard was set at the level of 75 parts per billion (ppb) calculated as the three-year average of the 99th percentile of the annual distribution of daily maximum 1-hour average concentrations. With the establishment of the new 1-hour SO2 standard, ...


    By Trinity Consultants

  • Monitor Sulfur Compounds in Petroleum Chemical, Environmental, and Other Samples, Using a Special-Purpose Capillary GC Column

    Measurement of sulfur compounds is important to petroleum chemical analysts for several reasons, including a need to monitor odor problems and prevent catalyst poisoning.  Quantification of sulfur compounds is also important to environment analysts and to food, beverage and fragrance analysts for similar reasons.  Analyses of sulfur compounds can be complicated by the inability to ...


    By MilliporeSigma

  • Case study - chroma S Sulfur compounds analysis (H2S and CS2, 0/300ppm) for emission application in a paper mill

    Paper mills use large quantities of sulfur substances in particular in the process of cellulose burning (Kraft cooking). CS2 and H2S emissions are a real problem for the environment (toxicity, odors...). Nowadays, emissions are submitted to regulations (Directive n° 2001/81/EC of European Parliament and Council October 23, 2001) and factories must respect these rules by installing filter or ...


    By Chromatotec Group

  • Case study - chroma S Sulfur compounds analysis (H2S and CS2, 0/300ppm) for emission application in a paper mill

    Paper mills use large quantities of sulfur substances in particular in the process of cellulose burning (Kraft cooking). CS2 and H2S emissions are a real problem for the environment (toxicity, odors...). Nowadays, emissions are submitted to regulations (Directive n° 2001/81/EC of European Parliament and Council October 23, 2001) and factories must respect these rules by installing filter or ...


    By Chromatotec Group

  • Class I area impact analyses – recent guidance and updates

    As recommended in Appendix W of 40 Code of Federal Regulations (40 CFR) Part 51 (Guideline on Air Quality Models), the CALPUFF modeling system has been widely used for long-range transport dispersion modeling analyses, especially for applications related to Class I Area analyses (e.g., regional haze evaluation and Class I Prevention of Significant Deterioration (PSD) increment analysis). As U.S. ...


    By Trinity Consultants

  • 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

  • Case study - N°AA4 – Ambiant air monitoring – WWP TRS MEDOR 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® ...


    By Chromatotec Group

  • Case study - N°AA2 – Ambiant air monitoring – WWP TRSMEDOR deodorisation

    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® ...


    By Chromatotec Group

  • Monitoring pollution in remote regions of Africa case study

    Customer: The South African Weather Service (SAWS) Ecotech’s Distributor: SI Analytics (Pty) Ltd Application: Ambient Air Monitoring in Karoo and Waterberg regions of South Africa Background: Carbon Monoxide and Sulfur Dioxide are among the major pollutants found in cities around the ...


    By Ecotech Pty Ltd

  • Behaviour of different cementitious material formulations in sewer networks

    Sewer networks are subjected to degradation, including biodeterioration of materials, in the presence of biogenic sulfuric acid, leading to costly repairs. To ensure durable structures, it is essential to select the best adapted materials. Two cementitious materials based on ordinary Portland cement (OPC) or calcium aluminate cement (CAC), were subjected to biodeterioration in the headspace of ...


    By IWA Publishing

  • Case study N°AA1 – Ambiant air monitoring – WWP TRS MEDOR H2S filter

    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® ...


    By Chromatotec Group

  • Analysis of Natural Gas Products by GC / TCD / FID

    The complex mixture of condensible hydrocarbons and permanent gases in a natural gas product has historically been separated on gas chromatographs equipped with dual columns and a switching valve. The light gases are separated from heavier compounds on a molecular sieve column, which is then backflushed onto a suitable column to separating the rest of the mixture. The Buck Scientific Model 910 ...


    By Buck Scientific Inc

  • Assessment of cement’s dust impact on the soil using principal component analysis and GIS

    To evaluate the impact of the cement’s dust emitted by the eastern Moroccan cement factory (Oujda Holcim) and deposited on the soil of the Ain Lahjar commune, 58 samples of soil were collected around the factory on a radius of 3 km approximately. The physicochemical analyses of the upper 3 cm of the soil surface samples correspond to the pH, electrical conductivity, the chlorides and the oxides ...

  • Case study - N°AA3 – Ambiant air monitoring – WWP TRS MEDOR odor monitoring

    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® ...


    By Chromatotec Group

  • Microbial community analysis in the autotrophic denitrification process using spent sulfidic caustic by denaturing gradient gel electrophoresis of PCR-amplified genes

    Spent sulfidic caustic (SSC) produced from petrochemical plants contains a high concentration of hydrogen sulfide and alkalinity, and some almost non-biodegradable organic compounds such as benzene, toluene, ethylbenzene and xylenes (BTEX). SSC is mainly incinerated with auxiliary fuel, leading to secondary pollution problems. The reuse of this waste is becoming increasingly important from ...


    By IWA Publishing

  • Solid Waste Management: A Case Study of National Refinery Limited

    Investigations have been carried out to assess and characterize the waste being generated in one of the largest petrochemical refinery of Pakistan. It was found that the refinery complex generates about 2000 metric tons of solid waste and about 0.55 million gallons of waste water per day. Besides these gaseous pollutants like H2S, CO, CO2 NO2, and particulate matter are also emitted in the ...


  • Development of a diagnostic tool: the wastewater collection network odour wheel

    The assessment of nuisance odour problems and the application of an effective odour management programme for the associated industrial activity may be achieved using a representative odour wheel and Odour Profile Analysis methodology. The odour wheel is a very useful tool for conducting odour quality control monitoring and developing a constructive dialogue regarding nuisance odours with the ...


    By IWA Publishing

  • Case study - N°NG1 – Natural gas monitoring – Medor Exp

    Context & Challenges Natural gas used for household consumption typically contains odorant sulfur components for safety reasons. As natural gas is normally odorless, the sulfur components are artificially added. When natural gas is transported between various companies, regions or countries, gas companies have to verify that the sulfur species are present as specified. ...


    By Chromatotec Group

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