17 results found
Hardisty PE, Cassie S, Ellis J, et al., 2006, Assessing the costs and benefits of MGP site remediation, LAND CONTAMINATION & RECLAMATION, Vol: 14, Pages: 352-356, ISSN: 0967-0513
Arch SE, Pearce M, Johnston KE, et al., 2006, Remediation of the former gasworks, High Wycombe, UK, LAND CONTAMINATION & RECLAMATION, Vol: 14, Pages: 241-246, ISSN: 0967-0513
Shields ARG, Butler AP, Daly P, et al., 2006, Monitoring of organic and inorganic parameters for a full-scale in situ pulsed air-sparging programme, LAND CONTAMINATION & RECLAMATION, Vol: 14, Pages: 329-334, ISSN: 0967-0513
Hardisty PE, Ozdemiroglu E, 2005, The economics of remediating NAPLs in fractured aquifers, Proc. NGWA Cost of clean-Up Conference
Hardisty PE, Ozdemiroglu E, 2005, The Economics Of Groundwater Remediation And Protection: A Tool for Decision Making, New York, Publisher: CRC Press, ISBN: 9781566706438
Hardisty PE, Roher J, Dottridge J, 2004, LNAPL Behavior in Fractured Rock: Implications for Characterization and Remediation, U.S. EPA/NGWAFractured Rock Conference: State of the Science and Measuring Success in Remediation
Hardisty PE, Wheater HS, Birks D, et al., 2003, Characterization of LNAPL in fractured rock, Q J ENG GEOL HYDROGE, Vol: 36, Pages: 343-354, ISSN: 1470-9236
Behaviour of light non-aqueous phase liquids (LNAPLs) within a fractured rock mass is a function of the properties of the immiscible fluid, the fracture network, rock matrix properties, and the groundwater regime. LNAPL behaves differently in rock with open fractures than it does in porous media. Relatively small volumes of LNAPL within vertical or subvertical fractures can produce significant LNAPL pressure heads, resulting in LNAPL penetration into the saturated zone. Penetration can be significantly deeper than predicted by porous medium models. Groundwater surface fluctuations can cause lateral LNAPL migration, even up-gradient to natural gradients. Characterization of LNAPL-contaminated fractured rock masses must take into account these fundamental differences in behaviour. Site investigation should focus on determination of fracture network and rock matrix properties, understanding of groundwater surface fluctuation dynamics, and consideration of spatial LNAPL distribution. A combination of techniques, many not used in porous medium investigations, but can used to develop a detailed conceptual model. These include coring, angled holes, digital borehole imaging, and fracture casting for aperture determination. The data provide information on LNAPL occurrence and behaviour, allow LNAPL spill volume to be estimated, indicate future movement, and ultimately allow for more effective and economic remedial decision making.
Hardisty PE, Dottridge J, Wallace S, et al., 2001, A method for assessing the full costs and benefits of groundwater remediation, Sixth International In Situ and On Site Bioremediation Symposium, Pages: 17-27
Hardisty PE, Dottridge J, Rohrer J, 2001, Application of Digital Borehole Imaging Data for Characterisation of NAPLs in Fractured Rock, Fractured Rock Conf.
Moore BJ, Hardisty PE, Thompson RG, et al., 1999, Fate of hydrocarbon contaminants in natural wetlands, JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY, Vol: 38
Jones ADG, Mason J, Smith SR, et al., 1999, Hydro-biological controls on transport and remediation of organic pollutants, San Diego, Proc. 5th Int. In Situ and On-Site Bioremediation Symp, Publisher: Battelle Press, Pages: 123-128
Hardisty PE, Bracken RA, Knight M, 1998, The economics of contaminated site remediation: decision making and technology selection, ENGINEERING GEOLOGY SPECIAL PUBLICATIONS, Vol: 14, Pages: 63-71
Hardisty PE, Wheater HS, Johnston PM, et al., 1998, Behaviour of light immiscible liquid contaminants in fractured aquifers, Geotechnique, Vol: 48, Pages: 747-760, ISSN: 0016-8505
Hardisty PE, Wheater HS, Parker TM, 1998, Monitoring LNAPL in Fractured Media: Assessing Apparent Thickness Data, API / NGWA Conference on Hydrocarbons and Organic Chemicals in Groundwater
Moore BJ, Hardisty PE, Headley JV, 1997, Hydrocarbon Attenuation in Natural Wetlands, NGWA/API 1997 Petroleum Hydrocarbon and Organic Chemicals in Groundwater: Prevention, Detection and Restoration
Hardisty PE, 1995, Characterizing LNAPL contamination in fractured sedimentary-rock, HAZARDOUS WASTE CONSULTANT, Vol: 13, Pages: A1-A5, ISSN: 0738-0232
Hardisty PE, Johnston PM, Wheater HS, et al., 1994, Mobility of LNAPL in fractured sedimentary rocks: Implications for remediation, NWWA conf. on Hydrocarbons and Organic Chemicals in Groundwater, Houston
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