Overview

Utilising in-situ remediation techniques to treat a mix of persistent organic pollutants using ISCO and colloidal activated carbon.

A historic former timber yard was demolished, and an office facility built in the early 1980s, was impacted with high levels of petroleum hydrocarbons and a mixture of pentachlorophenol, trimethyl tin and pesticides (lindane, dieldrin and aldrin, amongst others) thought to be a result of the timber yards industrial practices.

Due to divestment; the office parks owner wished to remediate the site before the sale. An integrated remediation strategy was devised to accelerate close out. This strategy comprised excavation of the impacted vadose zone soils, in situ chemical oxidation (ISCO) to target high levels of contamination and in situ sorption and enhanced biological degradation through the injection of colloidal activated carbon and an oxygen release compound, to achieve low groundwater concentrations.

Once on-site, it was discovered that conditions differed from that identified in the site investigation, due to the location of site services, more heterogeneous geology and lower permeability threatening the ability to apply the necessary in situ substrates.

This presentation will be of interest to regulators, problem owners and contaminated land practitioners in understanding what approaches can be used to target complex contaminant mixtures and how robust remediation strategies can be devised to allow adaptions to real-world site conditions.             

Speaker

Jack Shore, Senior District Manage and Colloidal Technologies Lead, Europe, REGENESIS

Jack is in charge of the UK and Scandinavian districts within REGENESIS. As part of this role, he manages a team providing technical support and design work to a mix of Design and Build Consultancies, Remediation Contractors and Blue-Chip Clients.

Jack has over 12 years of experience within the remediation industry and most recently has successfully implemented the first injection of PlumeStop to effectively stabilise a PFAS plume in the EU. His experience ranges from supervising site investigations, developing in situ remediation designs, and managing large-scale remediation projects with multiple stakeholders.

The material presented in this webinar has not been peer-reviewed. Any opinions are the presenter’s own and do not necessarily represent those of IChemE or the Environment Special Interest Group. The information is given in good faith but without any liability on the part of IChemE.

Time

10:30—11:30 BST.

Software

The presentation will be delivered via GoToWebinar®. 
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You are advised to join the webinar at least ten minutes before the scheduled start time, to allow for your computer to connect.