Oil-in-Water Monitoring Articles

  • Large Precipitation Events are Critical in Replenishing Groundwater Resources

    Large precipitation events that occur about every 10 years are a critical source of recharge for replenishing groundwater resources, according to a new study by the U.S. Geological Survey and the Bureau of Reclamation. Groundwater is a vital source of water in the western United States, and will be increasingly ...

  • Sulfate-Enhanced bioremediation of BTEX - Case Study

    Problem A former gas station in North Carolina contaminated groundwater with BTEX from a UST basin. The site is now in the median of a busy four-lane highway. Residents within 250 feet of the site use an irrigation well, prompting the need to conduct proactive remedial action. Site conditions of sand and clay above partially weathered bedrock and depleted sulfate concentrations within the ...


    By EOS Remediation, LLC

  • An Interview with George Hawkins, DC Water

    “I have often used the phrase a ‘crisis is a terrible moment to waste.’ Countries and regions that are most impressive on water innovation are usually places that had a crisis of some sort driving the need to innovate.” says George Hawkins, CEO and General Manager of DC Water in an exclusive interview with ...


    By Rethink Events Ltd.

  • Techniques for Oil in Water Analysis

    The people responsible for conducting oil in water measurements understand that the measurement can be quite challenging. Wastewater from different sources can contain many different types of hydrocarbons, each with different chemical make-ups. On top of the lack of chemical uniformity in different oils, there has been a ...


    By Spectro Scientific

  • MB Bioremediation - Case Study

    Patented dry product delivering billions of live non-genetically modified microorganisms for bioremediation of oil, gasoline, diesel, grease or any other hydrocarbon based contamination. MB Bioremediation Drill Cutting Remediation Emergency Public Area Clean-up & Treatment Industrial Remediation Oil Production Pit Remediation ...


    By DryLet

  • An Introduction to Bioremediation and its Applications

    A variety of toxic chemicals, metals, and effluents are created and used in industrial processes. These elements need to be degraded to ensure that they do not harm the environment when disposed. A specialized process and equipment are required to perform this task. This is where bioremediation comes in. What is Bioremediation, and what are its Types? In simple ...


    By HPI Processes, Inc.

  • Water Distribution System Security Monitoring

    A water security instrument essentially needs to be able to detect potential contaminants in drinking water. Since a significant number of potential chemical contaminants are organic in nature, a water security monitoring instrument that can detect organic matter in water is perfect for this application. Real Tech has developed an instrument specifically designed for water security ...


    By Real Tech Inc.

  • Surface Water / Algae Blooms Case Study

    Challenge The city river in Berlin is contaminated to the point that fish death events are common. Combined sewage overflows, stormwater runoff and the high traffic of ships are the main sources of contamination. The high amount of nutrients and the high tempratures in the summer make the river prone to algae blooms. For these reasons, the shore of the river was selected as the first ...


    By akvola Technologies

  • Experimental observation on factors affecting intrusion volumes during low or negative pressure events

    External water intrusion during low or negative pressure transient events in urban water supply systems may cause pollution and health problems. The volume of intrusion pollutants is one of the significant indicators that can reflect the degree of health risks when a pollution incident occurs. A pilot-scale platform was constructed in this study to simulate intrusion events, which were caused ...


    By IWA Publishing

  • Monitoring the human rights to water and sanitation: an analysis of policy in Pacific island countries

    Government monitoring of water and sanitation services is a critical step in realising the human rights to water and sanitation (HRWS). In this study we investigated the national water and sanitation policies of 13 Pacific island countries (PICs) to understand how they envision monitoring the water and sanitation service delivery dimensions put forth by the HRWS framework. In particular, we ...


    By IWA Publishing

  • Improved estimate of multiyear drought for water resources management studies

    Using short hydrological records to characterise extreme drought for water studies could lead to uncertain results. At first, this article introduces a generic model that extends the length of short hydrological records to improve the analysis of drought. Using simulated data, the extension model performance was tested and found to work well and later the model was used to extend the annual ...


    By IWA Publishing

  • Gas analysers support management of Swindon fire

    The capability to convene a multi-agency Air Quality Cell (AQC) was established in England in 2009 following the Buncefield Oil Storage Depot incident. A review of this event identified the need to rapidly co-ordinate the acquisition, analysis and interpretation of air quality data in major incidents. Arrangements have been made in England to bring together experts from the Environment Agency ...


    By Quantitech Ltd

  • Oil Water Separator Maintenance

    Oil water separators (OWS) can be co$tly to maintain, $20,000 or more on average per cleaning and if not properly managed, can be very expensive conduits of pollution. Have you taken steps to minimize the effects and consequences on your operating co$t? When was your facility’s last OWS maintenance ...

  • Case study - Crude oil in water

    Produced Water Treatment Site: A pilot study was performed to test water samples contaminated with produced water from several oil well production sites in Wyoming for a company that provides mobile water treatment systems that enable oil and gas companies to recycle and reuse flow back water more efficiently. The samples were tested for their gasoline range and extended diesel/oil range ...


    By Sitelab Corporation

  • A modified Green–Ampt model for water infiltration and preferential flow

    Preferential flow is significant for its contribution to rapid response to hydrologic inputs at the soil surface and unsaturated zone flow, which is critical for flow generation in rainfall–runoff (RR) models. In combination with the diffuse and source-responsive flow equations, a new model for water infiltration that incorporates preferential flow is proposed in this paper. Its performance in ...


    By IWA Publishing

  • The B O B E R (Better Observation for Better Environmental Response) Project - Slovenia

    The B O B E R (Better Observation for Better Environmental Response - Boljše Opazovanje za Boljše Ekološke Rešitve) Project, Slovenia  The BOBER project was completed in 2015 and it is the largest project for monitoring the environment conditions across Slovenia. The project goals were to upgrade the national system for monitoring and ...

  • Air crash investigation using Oxford Instruments handheld analysers - case study

    It was late April 1945 during the last days of World War II for Italy. Just one week before the liberation of Italy from the fascists rule, a group of five Messerschmitt BF 109 planes took off from the Vicenza airbase heading to Ghedi, near Brescia. This was not a combat mission but a transfer flight. Soon after take-off the planes were intercepted by US fighters and attacked. All five planes ...


    By Oxford Instruments plc

  • Development of ultrasonic streamflow monitoring system using an existing low head broad-crested agricultural small dam

    In this study, we developed a system of continuous accurate monitoring of streamflow, which is composed of a pair of ultrasonic Doppler velocity sensors installed on an existing low head broad-crested agricultural small dam. In case of using this dam, errors in computing area are minimized due to stability of it, so that discharge can be accurately measured. In addition, by direct measurement of ...


    By HydroVision GmbH

  • Synthesis of graphene oxide–SiO2 coated mesh film and its properties on oil–water separation and antibacterial activity

    Oil–water separation has recently become a worldwide challenge due to the frequent occurrence of oil spill accidents and increasing industrial oily wastewater. In this work, the multifunctional mesh films with underwater oleophobicity and certain bacteriostatic effects are prepared by layer-by-layer assembly of graphene oxide-silica coatings on stainless steel mesh. The mesh film exhibits ...


    By IWA Publishing

  • Simulating water flow in variably saturated soils: a comparison of a 3D model with approximation-based formulations

    In hydrological models, variably saturated flow is often described using the Richards equation, either in a fully three-dimensional (3D) implementation or using a quasi-3D framework based on the 1D Richards equation for vertical flow and a flow-approximation for the other two dimensions. However, it is unclear in which configuration or under which boundary conditions these approximations can ...


    By IWA Publishing

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