Soil and Groundwater Scientist ,
Shell Global Solutions International B.V.
Dr Richard Gill is a Soil and Groundwater Scientist at Shell Global Solutions International B.V. based in the Netherlands, where he provides soil and groundwater technical support to Shell businesses in Europe and Africa, and represents Shell on a number of collaborative industry organizations [Concawe at EU-level, and SAGTA in the UK] to develop sustainable and risk-based solutions to soil and groundwater challenges. He is also a contributor on Shell’s global soil and groundwater R&D program; his current research interests are sustainable remediation and innovative technologies applied to remediation and site investigation. Richard graduated with a PhD from Sheffield University, UK on the topic of electrokinetic-enhanced bioremediation in heterogeneous settings.
Electrokinetic-Enhanced Bioremediation: Applications in Physically Heterogeneous Settings
This talk focuses on the coupling of two remediation technologies: electrokinetics and in situ bioremediation (EK-BIO), to overcome the mass transfer limitations presented by physically heterogeneous settings that can limit conventional remediation technologies. While bioremediation is commonly applied, electrokinetics (EK) less so. EK is the application of direct current to the subsurface to initiate certain transport processes independent of hydraulic conductivity. Where bioremediation is limited due to the influence of physical heterogeneity, EK transport processes could be applied to initiate an additional flux of limiting solutes across K boundaries. The research highlighted in this talk relates to laboratory and desk-based studies that have advanced the current state of knowledge for EK-BIO applications at both the fundamental level and field-scale respectively. The laboratory studies support the development of a conceptual framework describing the influence of physical heterogeneity on EK-BIO applications and the desk study compares the technology against others using sustainability criteria.