direct push Articles

  • Direct-Push Injection and Circulation Biobarrier to Remediate a TCE Groundwater Plume

    ABSTRACT: The goal of this study was to determine if direct-push drilling methods combined with a circulation system could be used to establish a passive biobarrier in a very transmissive aquifer to treat tricholoroethene (TCE). The Site is located in central Indiana, where historic use of TCE has impacted an unconfined aquifer. A plume consisting primarily of TCE has migrated from west to east ...


    By EOS Remediation, LLC

  • Asbestos pushed in Asia as product for the poor

    The executives mingled over tea and sugar cookies, and the chatter was upbeat. Their industry, they said at the conference in the Indian capital, saves lives and brings roofs, walls and pipes to some of the world's poorest people. The industry's wonder product, though, is one whose very name evokes the opposite: asbestos. A largely outlawed scourge to the developed world, it is still going strong ...


    By Associated Press

  • Guest Editorial: Pushing Tort Reform to the Forefront

    The daunting costs of uncontrolled tort claims beg the need for tort reform. The need for tort reform legislation has reached a new level of urgency. A few facts explain why. The “elephantine mass” to which U.S. Supreme Court Justice Souter likened asbestos litigation shows no sign of receding. Indeed, the mass continues to feast on an orgy of claims – over 60 companies have sought bankruptcy ...


    By Bergeson & Campbell, P.C.

  • How Ergonomics Directs Force

    Muscling an airplane out of a hangar and onto the runway takes a fair amount of physical effort. Exert just a little too much force while your body twists during maneuvering and you could be spending weeks at the chiropractor. ...


    By DJProducts, Inc.

  • Pushing the limits: optimizing membrane plants via correlating fouling with critical flux

    Abstract The concept of establishing direct correlations between the operating flux, represented by the conversion, and fouling potential of membrane systems has always been of tremendous interest to membrane technology researchers, plant end-users and membrane manufacturers since the advent of membrane technology’s commercial applications worldwide some forty years ago. Several ...


    By MASAR Technologies, Inc.

  • Just–in–time manufacturing: literature review and directions

    The purpose of this paper is to review the literature on just–in–time (JIT) and to present a general survey of JIT implementation practices adopted by the manufacturing organisations. The published literature has been deeply analysed and arranged systematically in this paper. This paper examines the evolution of JIT and its implementation in the organisations. Various strategies, elements and ...


    By Inderscience Publishers

  • Vinyl Chloride Attenuation By Direct Injection of Time-Release Magnesium Peroxide.

    ABSTRACT: This case study shows that there is potential to remediate dissolved vinyl chloride by oxygenation in the field. Residual vinyl chloride concentrations have been remediated in the field at a mid-western site with a phosphate-intercalated peroxygen (ORC®, a proprietary formulation of magnesium peroxide that releases oxygen slowly). The site was formerly operated as an aluminum coating ...


    By REGENESIS

  • ASC Tech Services

    Environmental contamination is risky business, to access risk, high-tech and unique geophysical site characterization methods can be employed. By utilizing these high tech gadgets that describe the ground and detail exactly what can’t be seen. Just like the Silicon Valley, new methods have surfaced and now more than ever it is easy to characterize the subsurface using direct push tools. ...


    By ASC Tech Services

  • Optimizing filter backwashing

    Optimum filter performance has become a critical component of surface water treatment. For conventional and direct filtration systems, LT1ESWTR requires the combined filter effluent turbidity be less than or equal to 0.3 NTU’s for 95% of the readings taken each month. At no time may the readings exceed 1 NTU. As regulations change and filtration is pushed toward the lower limits of turbidity ...


    By Entech Design, Inc.

  • Enhanced Bioremediation of High Contaminant Concentrations in Source Residual Area (PDF)

    Although enhanced bioremediation has proven to be effective at many sites, typically it has been applied to relatively low contaminant concentrations and in relatively permeable media. The project site described herein is an application that potentially extends the practical limits of in situ bioremediation applications. An active eyewear manufacturing facility located in Western NY was found to ...


    By REGENESIS

  • Market structure and the enforcement of emissions taxes

    This paper presents a theoretical analysis of the nature of an optimal emissions tax when firms’ emissions are not perfectly observable, specifically in two types of market structure: perfect competition and Cournot competition with and without free market entry. The purpose is to examine how the optimal tax is affected by enforcement costs and the market structure. We find that market ...


    By Inderscience Publishers

  • DNAPL Characterization Methods and Approaches, Part 2: Cost Comparisons`, Ground Water Monitoring & Remediation

    Contamination from the use of chlorinated solvents, often classified as dense nonaqueous phase liquids (DNAPLs) when in an undissolved state, pose environmental threats to ground water resources worldwide. DNAPL site characterization method performance comparisons are presented in a companion paper (Kram et al. 2001). This study compares the costs for implementing various characterization ...


    By QED Environmental Systems

  • Mesoscale modelling: recent developments and applications to nanocomposites, drug delivery and precipitation membranes

    Mesoscale simulations have traditionally been used to investigate structural morphology of polymers in solution, melts and blends. Recently, such modelling methods are being pushed to important areas of Nanotechnology and Drug delivery that are well out of reach of classical molecular dynamics. This paper describes our current efforts in three important emerging areas: polymer-nanotube ...


    By Inderscience Publishers

  • Effective distribution of edible oils

    Edible oil was injected at five sites to promote reductive dechlorination. The edible oil was injected as a non-aqueous phase liquid (NAPL) or as an emulsion of oil, an emulsifier, and water. At Dover Air Force Base, injection of the emulsion into a barrier resulted in greater distribution of the total organic carbon (TOC) and more rapid dechlorination than direct injection of the edible oil into ...


    By Terra Systems, Inc. (TSI)

  • ORC Enhances Bioremediation and Results in No Further Action

    Site Summary A former industrial facility had one 1,000-gallon diesel UST for use in fueling an emergency generator.  Following removal of the UST, site investigations indicated diesel fuel contamination at levels above Florida Department of Environmental Protection (FDEP) Guidance Criteria. Further, total petroleum hydrocarbon (TPH) and polyaromatic hydrocarbon (PAH) contamination in ...


    By REGENESIS

  • On the over-investment in automotive technology

    This paper discusses the reasons for continuing very high levels of R&D spending in the automotive industry in spite of the fact that both the automobile and the market for automobiles are widely considered to be mature. Most R&D appears to be product and not process-related. The microelectronics revolution has to some extent rejuvenated the automobile. Besides that, government regulation has ...


    By Inderscience Publishers

  • Comparision of Installation Methods for Subsurface Placement of EHC™ for Treatment of Recalcitrant Groundwater Contaminants

    Untitled Document Presented at 15th Annual AEHS Meeting & West Coast Conference on Soils, Sediments & Water San Diego, CA Overview ...


  • Detailed hydraulic assessment using a high-resolution piezocone

    Department of Defense (DoD) ground water assessment and remediation projects require cost effective methods for determination of the direction and rate of ground water and contaminant flow. Monitoring wells have typically been used to estimate these parameters. However, detailed three-dimensional ground water and contaminant flow pathways cannot typically be delineated using monitoring well data. ...

  • Detailed hydraulic assessment using a high-resolution piezocone coupled to the GeoVIS

    Department of Defense (DoD) ground water assessment and remediation projects require cost effective methods for determining the direction and rate of ground water and contaminant flow. Monitoring wells have typically been used to estimate these parameters. However, detailed three-dimensional ground water and contaminant flow pathways cannot typically be delineated using monitoring well data. ...

  • Markets, prices and market power

    Numerous celebrated economists have pointed to the discipline's failure to adequately explain markets and how prices are formed. This paper addresses that deficiency. It considers the basic function of a market, defined as to coordinate the supply of a product with demand via movements in price. It examines how this operates in actual markets, arguing that price is essentially arbitrary: there is ...


    By Inderscience Publishers

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