Imperial College London

ProfessorPaulHardisty

Faculty of EngineeringDepartment of Civil and Environmental Engineering

Visiting Professor
 
 
 
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Contact

 

+44 (0)0618 626 37111p.hardisty

 
 
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Location

 

Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

17 results found

Hardisty PE, Cassie S, Ellis J, Wallace Set al., 2006, Assessing the costs and benefits of MGP site remediation, LAND CONTAMINATION & RECLAMATION, Vol: 14, Pages: 352-356, ISSN: 0967-0513

Journal article

Arch SE, Pearce M, Johnston KE, Murray AJ, Kelly T, Hardisty PEet al., 2006, Remediation of the former gasworks, High Wycombe, UK, LAND CONTAMINATION & RECLAMATION, Vol: 14, Pages: 241-246, ISSN: 0967-0513

Journal article

Shields ARG, Butler AP, Daly P, Hardisty PEet 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

Journal article

Hardisty PE, Ozdemiroglu E, 2005, The economics of remediating NAPLs in fractured aquifers, Proc. NGWA Cost of clean-Up Conference

Conference paper

Hardisty PE, Ozdemiroglu E, 2005, The Economics Of Groundwater Remediation And Protection: A Tool for Decision Making, New York, Publisher: CRC Press, ISBN: 9781566706438

Book

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

Conference paper

Hardisty PE, Wheater HS, Birks D, Dottridge Jet 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.

Journal article

Hardisty PE, Dottridge J, Wallace S, Smith J, Ozdemiroglu E, Fisher Jet 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

Conference paper

Hardisty PE, Dottridge J, Rohrer J, 2001, Application of Digital Borehole Imaging Data for Characterisation of NAPLs in Fractured Rock, Fractured Rock Conf.

Conference paper

Moore BJ, Hardisty PE, Thompson RG, Esselinckx Bet al., 1999, Fate of hydrocarbon contaminants in natural wetlands, JOURNAL OF CANADIAN PETROLEUM TECHNOLOGY, Vol: 38

Journal article

Jones ADG, Mason J, Smith SR, Wheater HS, Butler AP, Gao H, Shields A, Hardisty PE, Wallace Set 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

Conference paper

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

Journal article

Hardisty PE, Wheater HS, Johnston PM, Bracken RAet al., 1998, Behaviour of light immiscible liquid contaminants in fractured aquifers, Geotechnique, Vol: 48, Pages: 747-760, ISSN: 0016-8505

Journal article

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

Conference paper

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

Conference paper

Hardisty PE, 1995, Characterizing LNAPL contamination in fractured sedimentary-rock, HAZARDOUS WASTE CONSULTANT, Vol: 13, Pages: A1-A5, ISSN: 0738-0232

Journal article

Hardisty PE, Johnston PM, Wheater HS, Dabrowski TLet al., 1994, Mobility of LNAPL in fractured sedimentary rocks: Implications for remediation, NWWA conf. on Hydrocarbons and Organic Chemicals in Groundwater, Houston

Conference paper

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