Field Monitoring Articles

  • LGD F200 - Designed for easy zeroing and span adjustments

    Regular zeroing and span adjustments to gas analyzers in the field are suggested and required for a variety of reasons. Compliance to environmental standards, e.g. those outlined in the US EPA (40 CFR) or EN 14181 is an important factor. Special application conditions, e.g. a varying gas matrix or compensating for pressure effects can be additional reasons, where a zeroing and span adjustment ...


    By Axetris Ag

  • Gas Dilution With The Equal Capillaries Technique

    The advantages of the equal capillaries technique are surprising and leads to reach accuracy values of one order of magnitude higher than all the other dynamic dilution techniques. This comparison will be supported by analyzing the accuracy available with two different techniques. Nozzles (sonic or non-sonic) technique With this technique, a series of different size nozzles is used ...


    By Be.T.A. Strumentazione Srl

  • Field Performance Testing for Pipeline Pumps

    Significant energy savings can be achieved by optimizing pump operating efficiency. Measuring the exact pump performance with crude oil under realistic conditions in the field is the first step towards improving the pump efficiency in the future. About 20 billion barrels of crude oil were transported through pipelines in 2015. Around the world, there are over one million kilometers of ...


    By Sulzer

  • Reducing costs through precise remote tracking

    Historically, inline inspection (ILI) tools used to identify defects on oil and gas pipelines have been tracked by field teams. However, recent technology advancements now allow pipeline owners to track pigs remotely, which is a much safer and cheaper alternative to traditional tracking. As pipeline integrity technology advances, asset owners are now using a wide variety of tools to detect ...


    By Pure Technologies

  • Sun at Night: Sunny Boy Storage in the Field

    Heinrich Eurich reports on his initial experiences with his PV storage system comprising the Sunny Boy Storage and Tesla Powerwall. As part of the field test for the Sunny Boy Storage, the SMA employee was one of the first to have the new storage system installed. “Darn it, back payments again!” That’s how I always reacted when the annual electricity bill from the public utility ...


    By SMA Solar Technology AG

  • WaterOne use of Matrix Gemini LIMS case study

    Organisation WaterOne is one of the largest drinking water suppliers in the US Mid-West, supplying potable water to approximately 400.000 people in Johnson County, Kansas. WaterOne has a number of sources for water - consisting of 2 river sources and several types of ground well sources. WaterOne is a quasi-municipal agency, with a seven member elected Board of Directors responsible for ...


    By Autoscribe Informatics

  • Microstickies agglomeration by electric field

    Microstickies deposits on both paper machine and paper products when it agglomerates under step change in ionic strength, pH, temperature and chemical additives. These stickies increase the down time of the paper mill and decrease the quality of paper. The key property of microstickies is its smaller size, which leads to low removal efficiency and difficulties in measurement. Thus the increase ...


    By IWA Publishing

  • Featured Research Using HydraProbe Field Portable

    Investigating the backscatter contrast anomaly in synthetic aperture radar (SAR) imagery of the dunes along the Israel–Egypt border This study will appear in the International Journal of Applied Earth Observation and Geoinformation, Volume 46, April 2016, Pages 13-21.  ...

  • 40 years of expertise in gas analysis, definitely something to celebrate

    This year, Chromatotec celebrated its 40 years of expertise in gas analysis; 40 years in the market through the implementation of its dedicated product MEDOR® all around the world. The MEDOR® analyzer has now become the reference instrument in the field of expertise of natural gas in several countries especially in the United States. On July 9, in ...


    By Chromatotec Group

  • Health impact assessment of wastewater reuse for replenishing an urban landscape lake by disability-adjusted life year

    Wastewater reuse for landscape water replenishment has raised severe public concerns over potential health hazards. Thus, this study aims to quantify the health impacts due to the replenishment of Lake Cui in Kunming with reclaimed water. Based on experimental analyses, Escherichia coli and norovirus were determined as the major pathogens in Lake Cui. Three typical exposure routes, namely ...


    By IWA Publishing

  • Cement mixes - case study

    For the manufacture of various cements including Portland cement Portland blast furnace cement Portland pozzolanic cement Portland fly ash cement Portland oil shale cement Portland limestone cement Portland fly ash cement with slag Slag cement from divers raw materials, various techniques are used from the field ...


    By AVA - Huep GmbH u. Co. KG

  • Everett, WA - ERH under active storm water retention basin - Case Study

    First below water ERH remediation of TCE in active stormwater retention basin Project Summary TRS Group, Inc. (TRS) worked as a sub contractor to Landau Associates on this unique ERH remediation project. This project represents the first of its kind using ERH for site remediation underneath an industrial storm water retention basin full of water. The ...


    By TRS Group, Inc.

  • Characterization of dynamic evolution of the spatio-temporal variation of rain-field in Hong Kong

    A significant part of Hong Kong has hilly terrain with relatively short flow concentration time and, hence, is susceptible to the threat of flash floods and landslides during intense convective thunderstorms and tropical cyclones. For places like Hong Kong, a rainfall model that could adequately capture small-scale temporal and spatial variations would be highly desirable. The main challenge ...


    By IWA Publishing

  • Developing ecological scenarios for the prospective aquatic risk assessment of pesticides

    The prospective aquatic Environmental Risk Assessment (ERA) of pesticides is generally based on the comparison of predicted environmental concentrations in edge‐of‐field surface waters with regulatory acceptable concentrations derived from laboratory and/or semi‐field experiments with aquatic organisms. New improvements in mechanistic effect modelling have allowed a better characterization of ...


    By John Wiley & Sons, Ltd.

  • Use of terrestrial field studies in the derivation of bioaccumulation potential of chemicals

    Field‐based studies are an essential component of research addressing the behavior of organic chemicals, and a unique line of evidence that can be used to assess bioaccumulation potential in chemical registration programs and aid in development of associated laboratory and modeling efforts. To aid scientific and regulatory discourse on the application of terrestrial field data in this manner, ...


    By John Wiley & Sons, Ltd.

  • Granular ferric hydroxide adsorbent for phosphate removal: demonstration preparation and field study

    Ferric hydroxide (FHO), which has high phosphate adsorption capacity, was prepared by precipitation at industrial scale and then fabricated via the drum granulation method with cross-linked poly(vinyl alcohol) as the binder. The optimum binder/FHO powder ratio was 0.6 for producing a granular adsorbent with a high phosphate adsorption capacity and stability. The Langmuir maximum adsorption ...


    By IWA Publishing

  • Energy performance indicators of wastewater treatment: a field study with 17 Portuguese plants

    The energy costs usually represent the second largest part of the running costs of a wastewater treatment plant (WWTP). It is therefore crucial to increase the energy efficiency of these infrastructures and to implement energy management systems, where quantitative performance metrics, such as performance indicators (PIs), play a key role. This paper presents energy PIs which cover the unit ...


    By IWA Publishing

  • Utilizing structural equation modeling as an evaluation tool for critical parameters of the biosand filter in a pilot study in Para, Brazil

    Biosand filters (BSFs) have been used to provide potable water to many communities throughout the world. A significant number of laboratory and field studies have demonstrated the effectiveness of the BSF if utilized properly. However, our prior work suggests that multiple factors contribute to the effectiveness of the BSF in a community setting. These factors include: household education levels ...


    By IWA Publishing

  • Soil invertebrate community change over fuel‐contaminated sites on a subantarctic island: An ecological field‐based line of evidence for site risk assessment

    A number of fuel spills, of both recent and historic origins, have occurred on World Heritage listed subantarctic Macquarie Island. Sites contaminated by mainly diesel fuels are undergoing remediation by the Australian Antarctic Division. The risks posed by these sites are being managed using a “weight of evidence” approach, for which this study provides a preliminary line of evidence for the ...


    By John Wiley & Sons, Ltd.

  • Collecting Data from the Field? Follow this Formula for Success!

    A drill operator at an oil rig is looking tired and “out of it.” He’s yawning, his movements are slow, and he doesn’t appear to be paying much attention to detail. Immediately, the supervisor relieves the drill operator of his duties and reassigns the task. He quickly enters the work observation in his iPad. His device has an offline mode that will sync up with his ...


    By Intelex Technologies Inc.

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