NAPLs Articles

  • Ft. Lewis, WA - Cost and performance report - Case Study

    IDENTIFYING DEFORMATION Site Name: East Gate Disposal Yard (EGDY) Location: Ft Lewis, Washington CERCLIS ID No: WA72100900670 ROD Date: September 25,1990 Technology: Electrical Resistance Heating Type of Action: Remedial, NAPL Area Source Removal TECHNOLOGY APPLICATION Period of Operation:   The periods for the ...


    By TRS Group, Inc.

  • Waste management of a microemulsion using elevated temperatures

    Elevated temperatures reduced NAPL-saturated fraction of a treated SPME waste effluent. As temperature increased, aqueous fraction of the separated SPME increased to 0.96 at 90°C. Composite volume samples had optimal separation at 75°C, where >95% of NAPL mass partitioned into the organic phase; while in first pore volume samples, it decreased with increasing temperature after 70°C. Increasing ...


    By Inderscience Publishers

  • Case study - NAPL forensics analysis at tank farm in Boston

    Ambient Engineering, Inc. (Concord, MA) used Sitelab to investigate and remediate a former tank farm along Boston Harbor contaminated by a large, subsurface plume of commingled diesel fuel and No. 6 fuel oil. Loading racks (above) are suspected to have contributed to most of the site’s contamination. Light Non Aqueous Phase Liquids (LNAPL) collected from 40 monitoring wells were tested ...


    By Sitelab Corporation

  • Modelling dissolution of multi-component non-aqueous phase liquids using Pareto distributions

    A distributed-site non-aqueous phase liquid (NAPL) dissolution model that can capture the physical process of dissolution is presented. The model uses a Pareto distribution of effective interfacial area and a correlation for the mass transfer. Model parameters are obtained using a formal constrained non-linear optimisation technique. The model is applied on effluent data from two soil column ...


    By Inderscience Publishers

  • Structural safety of existing buildings near deep excavations

    Structural safety of existing buildings near deep excavations is evaluated by computing exceeding probabilities of different damage criteria within a simplified probabilistic methodology based on monovariate or multivariate probabilistic analyses employing the results of a numerical model of the boundary value problem. Different limit domains, defined on one or more deformation parameters and ...


    By Inderscience Publishers

  • Case study - EDRO in soil at petroleum tank farm site

    Environmental engineers needed quick and accurate screening analysis on a tank farm contaminated with a subsurface plume of fuel oil. Sitelab's EDRO test was performed to delineate the vertical extent of contamination. A drill rig was used to collect samples from the surface down to twenty feet at different locations throughout the property. They needed to quantify the size of the NAPL plume in ...


    By Sitelab Corporation

  • Bay project, Escanaba, MI

    PROJECT: Bay Project - Union Pacific RailroadLOCATION: Escanaba, MIPRODUCTS: Bulk Organoclay®, Reactive Core Mat® SEDIMENT REMEDIATION CHALLENGES: Near Escanaba, MI, engineers found a bay that was showing evidence of soluble organics (NAPL) on its surface which was threatening the nearby fresh water bay. A reoccurring sheen was ...


    By CETCO

  • Church institution and digital world: new opportunities to profess the word of God

    The purpose of this paper is to investigate the relationship between church institution and new technology in the field of communication and management of the religious tourism experience. A critical study of the institutional church use of new technology applications for the communication, management and promotion of ecclesiastic heritage is developed; an empirical phase is implemented by ...


    By Inderscience Publishers

  • Hunters Point Case Study (In Situ Gas Thermal Remediation (GTR™))

    In Situ Thermal Remediation with Gas Thermal Remediation (GTR©) is being used to remove NAPL contaminants from a former military base. The system is extracting 378 liters (100 gallons) of liquid waste every week. LNAPLs, such as fuel and oils, and DNAPLs, such as PCBs and chlorinated solvents, are being removed from the subsurface to make way for a residential development. Three permits were ...

  • Case study - UVF and LIF used together at oil refinery site

    A former oil refinery in Kansas has a 100-acre size plume of oil. The NAPL is commingled with gasoline, diesel, crude oil and other petroleum products. An environmental consultant used Sitelab’s UVF to field screen hundreds of soil samples for EPH C11-C22 aromatic hydrocarbons. Split samples sent to a confirmatory lab directly correlated (see graph). Laser Induced Fluorescence (LIF) had ...


    By Sitelab Corporation

  • Measurement of NAPL–water interfacial areas and mass transfer rates in two-dimensional flow cell

    The nonaqueous-phase liquid (NAPL)–water interfacial area and the mass transfer rate across the NAPL and water interface are often key factors in in situ groundwater pollution treatment. In this study, the NAPL–water interfacial area and residual NAPL saturation were measured using interfacial and partitioning tracer tests in a two-dimensional flow cell. The results were compared with ...


    By IWA Publishing

  • Oxidation Catalysts for Co-Generation Plant

    Description Manuli Film, Naples, Italy, with three (3) Rolls Royce KVGS-18G2, lean burn, natural gas engines, each 3030 kW electrical. Thermal power is utilized both from exhaust gas and cooling water for plastic film production. Challenge Required to meet emission standard of 400 mg/Nm3 @ 5% O2 for carbon monoxide and 150 mg/Nm3 @ 5% O2 non-methane hydrocarbons. Solution ...


    By DCL International Inc.

  • Case study - EPH in soil with No. 6 fuel oil

    No. 6 fuel oils (heavy fuel oil, bunker C oil) is often used in industry for heat, steam or power generation. A consultant used Sitelab to investigate two different spill sites contaminated with subsurface plumes of NAPL resulting from leaking underground storage tanks (USTs). Soils were collected from borings using a drill rig and field screened for their EPH aromatic content. Split samples ...


    By Sitelab Corporation

  • Thermally activated persulfate oxidation of NAPL chlorinated organic compounds: effect of soil composition on oxidant demand in different soil-persulfate systems

    This study investigates the interaction of persulfate with soil components and chlorinated volatile organic compounds (CVOCs), using thermally activated persulfate oxidation in three soil types: high sand content; high clay content; and paddy field soil. The effect of soil composition on the available oxidant demand and CVOC removal rate was evaluated. Results suggest that the treatment ...


    By IWA Publishing

  • The fluidity of social sustainability in spaces of movement: the case of the art stations in Naples, Italy

    Drawing on Amin and Thrift?s (2002) sense of cities as spaces of movement, flow and everyday practices, in this paper I suggest a broadening of investigation of social sustainability from spaces of community to urban spaces of movement by looking at everyday, ordinary spaces like train stations. I will argue that these places, defined by the routine movement and mobility of its users, are ...


    By Inderscience Publishers

  • Pilot Project at Tidewater Terminals

    The pilot project was undertaken to determine the effectiveness of AgroRemed for cleanup of contaminated soil within a short turn around time as claimed by SARVA. The results were monitored on 10th day and 20th day before closing the pilot. It is seen from the results that there was a reduction of more than 30% in the values of TPH on 10th day and at the end of 20 days there was a reduction in ...


    By Sarva Bio Remed, LLC

  • Case study - NAPL forensics analysis at refinery site in Kansas

    An environmental consultant at Subsurface Environmental Solutions, LLC used Sitelab to fingerprint a large plume of Non Aqueous Phase Liquids (NAPL) located at a former oil refinery in Kansas. The plume is commingled with gasoline, diesel, crude oil and other petroleum products. Sitelab’s portable UVF-3100D analyzer is fitted with optical filters which can measure the C6 to C10 gasoline ...


    By Sitelab Corporation

  • A logistic regression model for explaining urban development on the basis of accessibility: a case study of Naples

    In this paper, the authors present a statistical modelling approach in order to explain the presence and development of built-up areas by means of a set of distinct accessibility indicators, so as to use these results in local planning studies, to test urban sustainability measures and to eventually forecast the impact of accessibility to transport systems on urban development. On the basis of ...


    By Inderscience Publishers

  • The Augustan aqueduct of Capua and its historical evolution

    At his own expense Augustus built his own aqueduct, known as Aqua Iulia, for Capua, located in today's Campania region of southern Italy, which was in Roman times, one of the most important civitas of the empire. The course of this aqueduct and of its likely branches, destined for two small towns, Saticula and Calatia, is ...


    By IWA Publishing

  • A mixed-integer non-linear programming with surrogate model for optimal remediation design of NAPLs contaminated aquifer

    A mixed-integer non-linear programming (MINLP) with surrogate model was introduced to derive the optimal surfactant enhanced aquifer remediation (SEAR) process (remediation cost minimisation and removal rate maximisation) at a nitrobenzene-contaminated site. First, a 3D multi-phase flow simulation model was developed to simulate the SEAR process; using a radial basis function artificial neural ...


    By Inderscience Publishers

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