bioremediation thermal Articles

  • Performance of DNAPL source depletion technologies 2 at 59 Chlorinated solvent-impacted sites

    Abstract Performance and rebound of intensive source depletion technologies were evaluated at 59 chlorinated solvent sites where remediation targeted dense non-aqueous phase liquid (DNAPL) source zones. The four technologies included in the study are chemical oxidation, enhanced bioremediation, thermal treatment, and surfactant/cosolvent flushing. Performance was evaluated by examining ...


    By TRS Group, Inc.

  • Tacoma, WA - ESTCP Fort Lewis heat enhanced bio - Case Study

    Heat Enhanced Bioremediation and Destruction Introduction In situ thermal treatment through Electrical Resistance Heating (ERH) is a proven robust technology for the treatment of volatile organic compound (VOC) source zones. ERH effectively treats the subsurface by volatilizing dense non-aqueous phase liquid (DNAPL) and VOCs, recovering the vapor, and ...


    By TRS Group, Inc.

  • In-situ thermal remediation under an inhabited residential apartment building

    ET-DSP Heat Transfer Mechanisms The heat is directed into the target volume from the electrode wells that are designed to balance the heat transfer mechanisms of electrical heating with convection to achieve rapid and uniform heating. Notice that heat flow outside the target volume has been minimized. Thermally Enhanced Remediation Mechanisms ...


    By McMillan-McGee Corp.

  • Heat-enhanced bioremediation and destruction - Case Study

    Introduction In situ thermal treatment through Electrical Resistance Heating (ERH) is a proven robust technology for the treatment of volatile organic compound (VOC) source zones. ERH effectively treats the subsurface by volatilizing dense non-aqueous phase liquid (DNAPL) and VOCs, recovering the vapor, and treating the vapor by conventional technologies such as granular activated carbon ...


    By TRS Group, Inc.

  • Common Treatment Train for Nonhalogenated SVOCs

    A treatment train is the combination of different treatment technologies. A system diagram of a common treatment train for nonhalogenated SVOCs is illustrated below. A thermally enhanced soil vapor extraction system is used to pull SVOC vapor from the contaminated soil. Electrodes are installed in the contamination zone to enhance the desorption of SVOCs from the contaminated soil. The ...

  • Analysis of DNAPL source depletion costs at 36 Field Sites

    Abstract A recent U.S. Environmental Protection Agency expert panel on dense non-aqueous phase liquid (DNAPL) remediation concluded that uncertainty in the costs and benefits of applying source depletion technologies (i.e., active remediation in source zones) is one key factor that discourages widespread use of these technologies at DNAPL sites (Kavanaugh et al., 2003). To reduce this ...


    By TRS Group, Inc.

  • EPA Technology News & Trends - Tacoma “Well 12A” Superfund Site

    The U.S. EPA Region 10 office uses an adaptive site management approach that relies on high-resolution site characterization (HRSC) techniques for strategic sampling at the Well 12A project area. This approximate one-square-mile project area is one of three at the 2.5-square-mile Commencement Bay-South Tacoma Channel Superfund site in Tacoma, Washington. The vicinity of Well 12A, one of 13 wells ...


    By TRS Group, Inc.

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you