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Tuesday, May 5, 2020 | History

5 edition of Steam injection for soil and aquifer remediation found in the catalog.

Steam injection for soil and aquifer remediation

Eva L. Davis

Steam injection for soil and aquifer remediation

by Eva L. Davis

  • 240 Want to read
  • 22 Currently reading

Published by Superfund Technology Support Center for Ground Water, Robert S. Kerr Environmental Research Laboratory in [Ada, Okla .
Written in English

    Subjects:
  • Soil remediation -- Technological innovations,
  • Groundwater -- Purification -- Technological innovations,
  • Aquifers -- Cleaning -- Technological innovations

  • Edition Notes

    StatementEva L. Davis
    SeriesGround water issue
    ContributionsSuperfund Technology Support Center for Ground Water (Robert S. Kerr Environmental Research Laboratory), United States. Environmental Protection Agency. Office of Research and Development, United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response
    The Physical Object
    FormatMicroform
    Pagination16 p.
    Number of Pages16
    ID Numbers
    Open LibraryOL13623420M
    OCLC/WorldCa39398112

      Steam enhanced extraction (SEE) is an aquifer remediation technique that can be effective at removing the bulk of non-aqueous phase liquid (NAPL) contamination from the subsurface, particularly highly volatile contaminants. However, low volatility compounds such as polynuclear aromatic hydrocarbons (PAHs) are less efficientlyremoved by this process. This research evaluated the effects of steam Cited by: A field pilot study of a steam injection method for the treatment of pentachlorophenol (PCP)-contaminated soil and groundwater has shown potential advantages over the traditional pump-and-treatment method. Low-pressure steam was injected 10 m below the ground surface. The ground water temperature was raised to degrees C over a period of 3.

    @article{osti_, title = {Steam injection for in-situ remediation of DNAPLs in low permeability media}, author = {Sleep, B.}, abstractNote = {The potential for remediation of dense, nonaqueous phase liquid (DNAPL) contamination by steam injection is investigated, including the advantages and disadvantages of the technology. The primary advantage is the significant enhancement of removal. United States Environmental Protection Agency Office of Research and Development Office of Solid Waste and Emergency Response EPA//S/ V/ April &EPA Ground Water Issue How Heat Can Enhance In-situ Soil and Aquifer Remediation: Important Chemical Properties and Guidance on Choosing the Appropriate Technique Eva L. Davis * Background The EPA Regional Ground Water .

    IN-SITU DELIVERY OF HEAT BY THERMAL CONDUCTION AND STEAM INJECTION FOR IMPROVED DNAPL REMEDIATION Ralph S. Baker, [email protected] (TerraTherm, Inc. Fitchburg, MA, USA) Gorm Heron (TerraTherm, Inc., Bakersfield, CA, USA) ABSTRACT: Thermal Conduction Heating (TCH) is a major component ofIn SituFile Size: KB. Based on permeability, steam injection rate, injection pressure, and desired breakthrough time. Determine placement of injection and extraction wells, plus screen depth, length and spacing. Determine actual steam migration pattern in subsurface. Injection rates Determine required injection pressure and rate to ensure overall coverage and.


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Steam injection for soil and aquifer remediation by Eva L. Davis Download PDF EPUB FB2

Steam Injection For Soil And Aquifer Remediation The purpose of this Issue Paper is to provide to those involved in assessing remediation technologies for specific sites basic technical information on the use of steam injection for the remediation of soils and aquifers that are contaminated by volatile or   semivolatile organic compounds.

Get this from a library. Steam injection for soil and aquifer remediation. [Eva L Davis; Superfund Technology Support Center for Ground Water (Robert S. Kerr Environmental Research Laboratory); United States.

Environmental Protection Agency. Office of Research and Development.; United States. Environmental Protection Agency. Office of Solid Waste and Emergency Response.].

BibTeX @MISC{States98groundwater, author = {United States and Eva L. Davis}, title = {Ground Water Issue Steam Injection for Soil and Aquifer Remediation}, year = {}}. Remediation by steam injection Ph.D. Thesis, October water saturated soil Numerical simulation of steam injection into a water saturated porous medium may be hindered by unphysical behavior causing the model to slow down.

We show scale remediation of an unconfined aquifer. 1 Introduction Combined steam injection and soil vapour extraction can accelerate and improve the clean-up of contaminated unsaturated soils due to significant changes in contaminant properties with increasing subsurface temperature (Sleep and Ma ).

Experimental and theoretical studies revealed that steam injection is an efficient method of soil remediation for mixtures of volatile and semi-volatile contaminants with low solubility in water (Sleep and McClure,Schmidt et al., ).Cited by: The present report “Remediation by steam injection” has been submitted as a part of the requirements for the Ph.D.

degree at the Technical University of Denmark. The study has been performed at Environment & Resources DTU in the period April to Julywith Karsten Høgh Jensen and Torben Obel Sonnenborg as Size: 1MB.

remediation using steam-air injection was carried out within the research project SAFIRA II. The main The aquifer bottom is about - m b.g.s. The groundwater water table is at about During steam-air injection into the soil layers with medium permeability the propagating steam.

remediation section was to be selected for steam-air injection. The steam-air injection in the first section is stopped and the SVE will be maintained for at least one week.

Then the next section will be treated by steam-air injection and SVE. During the treatment of section 2 an increase of contaminants in the soil vapour in the SVE wells of.

Overview of chosen techniques and methods for soils remediation. Overview of chosen techniques and methods for soils steam/hot air injection, and in situ soil mixing combined with steam.

In the past several years, steam injection has been adapted for the recovery of organic contaminants from the subsurface, and extensive laboratory and field research has been done. When steam injection is used for subsurface remediation, the objective is to remove as much of the contamination as possible, thus reducing the residual to very low levels.

Steam Injection Remediation Case Studies. Land contamination issues can be resolved with Steam Injection systems from Cornelsen. By the injection of a steam / air mixture the substrate is heated mainly by convection, inducing the mobilisation of contaminants and volatilisation of the compounds within the aquifer.

United States Environmental Protection Agency Office of Research and Development Office of Solid Waste and Emergency Response EPA//S/ January Ground Water Issue Steam Injection for Soil and Aquifer Remediation Eva L.

Davis Background Innovative technologies for subsurface remediation, including in situ techniques based on heating the subsurface to enhance the recovery. A field pilot study of a steam injection method for the treatment of pentachlorophenol (PCP)-contaminated soil and groundwater has shown potential advantages over the traditional pump-and-treatment method.

Low-pressure steam was injected 10 m below the ground surface. The groundwater temperature was raised to °C over a period of 3 by: The purpose of this Issue Paper is to provide to those involved in assessing remediation technologies for specific sites basic technical information on the use of steam injection for the remediation of soils and aquifers that are contaminated by volatile or semivolatile organic compounds.

Combining two thermal remediation technologies in this project was the optimal way to achieve complete source-zone cleanup of both the clay, using ISTD, and the sandy aquifer, using steam-enhanced ex-traction (SEE). The groundwater flow in the aquifer was controlled by pumping throughout the project.

WATER TECHNOLOGIES. The following study was focused on the simulation of a steam-injection field pilot test conducted in our past research. The scope of research contained two main subjects: heat transfer and contaminant transport when steam was injected into a pentachlorophenol (PCP)-contaminated aquifer.

Numerical simulation of the heat transfer during the field test showed that vertical permeability is more Cited by: 3. Air-Based Remediation Technologies Steam Injection • Implementation – Pattern of wells, use as injectors/extractors – Pulse steam injection, air injection (“huff and puff”) – Typically few pore volumes – Heat aquitards from below – Long cool-down period, bioremediation activity.

Steam Injection for Soil and Aquifer Remediation Introduction The principle of SEE is to heat the subsurface aggressively while containing and extracting contaminants. Numerical Simulation of a Steam-Injection Pilot Study for a PCP-Contaminated Aquifer Article in Environmental Science and Technology 40(13) August.

An introduction to the principles and practices of soil and groundwater remediation. Soil and Groundwater Remediation offers a comprehensive and up-to-date review of the principles, practices, and concepts of sustainability of soil and groundwater remediation. The book starts with an overview of the importance of groundwater resource/quality, contaminant sources/types, and the scope of soil Author: Chunlong Zhang.Steam Injection Remediation Case Studies.

Land contamination issues can be resolved with Steam Injection systems from Cornelsen. By the injection of a steam / air mixture the substrate is heated mainly by convection, inducing the mobilisation of contaminants and volatilisation of the compounds within the aquifer.The injection rate of steam in case 1, is equal to the total injection of air and steam in case 2, while the injection rate of air in case 3 is equal to the injection rate of air in case 2.

The initial mass of TCE in place was specified so that the average soil concentration would correspond to an optimum injection ratio of to 1, the Cited by: