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  • Print publication year: 2008
  • Online publication date: August 2009

11 - Emerging technologies

    • By Dale Van Stempvoort, National Water Research Institute, PO Box 5050, Burlington ON, Canada L7R 4A6, Kevin Biggar, BGC Engineering, Inc., 207, 5140–82 Avenue, Edmonton, Alberta, Canada T6B OE6, Dennis M. Filler, Dept. of Civil and Environmental Engineering, University of Alaska Fairbanks, PO Box 755900, Fairbanks AK 99775, USA, Ronald A. Johnson, Dept. of Mechanical Engineering, Institute of Northern Engineering Energy Research Center, University of Alaska Fairbanks, PO Box 755910, Fairbanks AK 99775–5910, USA, Ian Snape, Environmental Protection and Change Program, Australian Antarctic Division, Channel Highway, Kingston, Tasmania 7050, Australia, Kate Mumford, Particulate Fluids Processing Centre (ARC Special Research Centre), Department of Chemical and Biomolecular Engineering, University of Melbourne, Victoria 3010, Australia, William Schnabel, Golder Associates, 1346 West Arrowhead Road, Duluth MN 55811, USA, Steve Bainbridge, Contaminated Sites Program, Division of Spill Prevention and Response, Department of Environmental Conservation, 610 University Avenue, Fairbanks AK 99709–3643, USA
  • Edited by Dennis M. Filler, University of Alaska, Fairbanks, Ian Snape, David L. Barnes, University of Alaska, Fairbanks
  • Publisher: Cambridge University Press
  • DOI: https://doi.org/10.1017/CBO9780511535956.013
  • pp 212-230

Summary

Introduction

In this book, current scientific knowledge and practical experiences with bioremediation of petroleum-contaminated soils in cold regions are reviewed and compiled. We now more fully understand the inter-relationships between cold temperatures, soil and water properties, and biological processes. This aids decision making about practical remediation treatment for petroleum-contaminated sites in cold regions. Landfarming and enhanced bioremediation schemes have emerged as viable soil treatment methods that offer a number of advantages over other methods. Nevertheless, work still needs to be done to optimize these methods, and with regards to evaluating phytoremediation and rhizosphere enhancement potentials for cold soils.

Two emerging technologies have been identified that could offer significant cost savings; low-cost heating and controlled-release nutrient systems are described briefly here (see also Chapter 8). In addition, natural attenuation has received little rigorous evaluation for use in cold soils. The main limitation for natural attenuation in cold regions is the low rate of degradation, coupled with off-site migration that can be relatively rapid in soils or gravel pads that have a poor adsorption capacity. Permeable reactive barriers are one groundwater treatment technology that could buy time for slower in situ techniques such as natural attenuation to take place. An outline of emerging permeable-reactive barrier technology is presented here, although full-scale trials are not yet complete. It is possible that such in situ techniques, when coupled with aeration, sparging and biostimulation could offer methods for groundwater treatment in cold regions.

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Bioremediation of Petroleum Hydrocarbons in Cold Regions
  • Online ISBN: 9780511535956
  • Book DOI: https://doi.org/10.1017/CBO9780511535956
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