Ottawa Speaker Presentations

Michael S. Hebert, Beament Green
Navigating Through the Brownfield’s Remediation Process - Legal Issues
Michael S. Hebert Bio Abstract Presentation

Jeffrey Burke, Milestone Environmental Contracting Inc
Case Study: Arsenic Groundwater Remediation Using a Zero Valent Iron (ZVI) Permeable Reactive Barrier (PRB) and ZVI Injection
Jeffrey Burke Bio Abstract Presentation

Bruce Tunnicliffe, Vertex Environmental Inc.
Combining Remedial Approaches to Enhance PHC Remediation – Three Case Studies and Lessons Learned
Bruce Tunnicliffe Bio Abstract Presentation

Garry Ogletree, Nelson Environmental Remediation (NER)
How To Successfully Utilize Low Temperature Thermal Desorption for the Remediation of Hydrocarbon Contaminated Soil
Garry Ogletree Bio Abstract

How To Successfully Utilize Low Temperature Thermal Desorption for the Remediation of Hydrocarbon Contaminated Soil

Nelson Environmental Remediation (NER) has been offering Low Temperature Mobile Thermal Desorption soil remediation services for over 20 years. The most commonly used method to treat hydrocarbon impacted soil is disposal at a landfill site. However, this method, does not remediate the soil, it merely re-locates the problem while the owner maintains the liability. Landfilling is simply not sustainable in the long term. Low Temperature Thermal Desorption (LTTD) is an innovative process of remediating hydrocarbon contaminated soils, sediments and sludge in a sustainable manner which preserves the remediated soil for re-use and eliminates the owners liability at the site. LTTD is an Ex-Situ means of physically separating volatile and semi volatile organic contaminants from the soils through application of heat, incorporating sound environmental practices. Hydrocarbon impacted soils are placed in a rotary drum desorber, and heated to volatilize the hydrocarbons. The process gases are sent through a bag house to remove particulate and the contaminants of concern are transferred to a thermal oxidizer and destroyed converting them into carbon dioxide and water. The clean recycled soil can be utilized to backfill the excavation at the site.

Nelson will discuss the performance factors with the consultant(s) which must be considered to successfully utilize Low Temperature Thermal Desorption. These factors include but are not limited to the following: logistical planning, site requirement issues, equipment operating factors, the physical properties of the soil, contaminant characteristics and concentrations, volume of contaminated soil and available fuel sources. All factors that can affect the treatment process must be evaluated. Operational issues; like frost and frozen ground conditions, plant operations, treated stockpile confirmation sampling and reinstatement/backfilling will be discussed to help understand the real issues that occur after the selection of the technology. A Remedial Action Work Plan must be developed with the Owner/Generator prior to thermal treatment activities.

Scott Barker, TOTERRA Remediation
Applying Remedial Process Optimization and Advanced Techniques to Achieve Sustainable Remediation in a Cost-Constrained World
Scott Barker Bio Abstract Presentation

Phil Dennis, SiREM
Optimizing In-Situ Bioremediation of Chlorinated Ethenes in Ontario’s Groundwater
Phil Dennis Bio Abstract Presentation

Optimizing In-Situ Bioremediation of Chlorinated Ethenes in Ontario’s Groundwater

Cleanup of perchloroethene (PCE) and trichloroethene (TCE) in groundwater through enhanced in situ bioremediation (EISB) includes the addition of electron donors (biostimulation) and the addition of beneficial dechlorinating microorganisms (bioaugmentation). EISB is a proven and cost effective remedial approach which is now being widely implemented at Canadian chlorinated solvent sites due to:

The availability of bioaugmentation cultures and related testing;
Federal and provincial regulatory approvals for bioaugmentation culture;
Demonstrated success of bioremediation at Canadian sites; and
Novel approaches for amendment distribution in low permeability matrices.

A Canadian bioaugmentation culture (KB-1®) containing Dehalococcoides (Dhc) can be used to enhance bioremediation at sites where these dechlorinating microorganisms are absent or poorly distributed. In addition, locally available remediation treatability studies and groundwater testing for Dhc, allows better selection of remediation amendments and strategies to confirm success after implementation.
The KB-1® culture has been available for use in Canada since 2008 upon receiving regulatory approvals obtained through Environment Canada’s New Substances Notification program.  The Ontario Ministry of the Environment (MOE) also granted approval for KB-1® through a Mobile Certificate of Approval, which is applicable to most sites in Ontario. As a result, KB-1® is being applied at a growing number of locations in Ontario, including sites in the Greater Toronto Area and Ottawa regions. A case study highlighting an Ontario site will be presented to illustrate how successful enhanced bioremediation was implemented.

Geologies where EISB is being implemented include fractured rock as well as low permeability clay and glacial till. Low permeability strata are common in some of the most highly industrialized areas in Canada, notably in Southern Ontario and Quebec. Originally conceived as an oil and gas extraction technology, hydraulic fracturing can be used to improve distribution of bioremediation amendments, thereby improving bioremediation outcomes. Electrokinetic (EK) bioremediation is a novel approach that uses an electrical current to move amendments in the subsurface. Examples of successful implementation of hydraulic fracturing and EK- enhanced bioremediation to improve amendment distribution in clay strata will be discussed.

March 2, 2014

Thank you to the attendees, presenters and sponsors for making the SMART Remediation Ottawa Technical Learning Seminar another wonderful event!

We hope you learned new tricks and tips as well as enjoyed the opportunity to network with old and new colleagues.

Feel free to check back for updates on upcoming seminars and the presentations uploaded in PDF format.

SMART TO 2014

2014 SMART Remediation Ottawa – February 27, 2014

Ottawa Speaker Presentations

Michael S. Hebert

Navigating Through the Brownfield’s Remediation Process - Legal Issues

Jeffrey Burke

Case Study: Arsenic Groundwater Remediation Using a Zero Valent Iron (ZVI) Permeable Reactive Barrier (PRB) and ZVI Injection

Bruce Tunnicliffe

Combining Remedial Approaches to Enhance PHC Remediation – Three Case Studies and Lessons Learned

Garry Ogletree

How To Successfully Utilize Low Temperature Thermal Desorption for the Remediation of Hydrocarbon Contaminated Soil

Scott Barker

Applying Remedial Process Optimization and Advanced Techniques to Achieve Sustainable Remediation in a Cost-Constrained World

Phil Dennis

Optimizing In-Situ Bioremediation of Chlorinated Ethenes in Ontario’s Groundwater

Speakers