Til kontaktpersonerne for
Videncenter for Jordforurening
31-08-2012
Sag.nr.: 10/1304
Dokumentnr. 37514/12
Sagsbehandler
Kit Jespersen
Tel. 3529 8185
Invitation til engelsksproget kursus i “Investigation and Remediation
of Chlorinated Solvents in Soil and Groundwater”
Videncenter for Jordforurening afholder ovennævnte kursus fra tirsdag den
15. januar 2013 kl. 10.00 til onsdag den 16. januar 2013 kl. 16.00 på
Hotel Haraldskær, Skibetvej 140, 7100 Vejle.
Short Course on: Investigation and Remediation of Chlorinated Solvents
in Soil and Groundwater
Undervisere: Neal D. Durant and Evan Cox, Geosyntec Consultants, Columbia, Maryland, USA
Overview
Worldwide, chlorinated solvents are one of the most common and challenging types of groundwater contaminants. Due to their physical properties,
pure phase chlorinated solvents are often referred to as dense nonaqueous
phase liquids (DNAPLs). A recently published study by a panel of experts
(Stroo et al. 2012) found that while the capabilities of technologies for remediating chlorinated solvent DNAPL sites are improving, there are few
cases where these technologies have completely cleaned up chlorinated solvent source areas.
In order to design effective soil and groundwater remediation systems for
any site, particularly for DNAPL sites, the distribution of contaminant mass
in the source area must be reasonably well delineated and defined. Unsuccessful and expensive remedial efforts in source areas often result from inadequate site characterization prior to remedial design and selection. This
Short Course will evaluate a variety of DNAPL detection and delineation
E-mail: kij@regioner.dk
technologies. Technologies to be discussed will include direct push technology membrane interface probe, Sudan IV dye testing, partitioning tracers, Flute liners, and soil and groundwater concentration data analysis.
Chlorinated solvent distributions between high and low-permeability layers
in unconsolidated deposits can be complex, with low-permeability layers
often becoming a compartment that hosts a significant fraction of the contaminant mass due to diffusion and sorption processes. Selection of effective remedies for DNAPL source areas requires understanding of how the
contaminant mass is distributed. This Short Course will present and discuss
tools for evaluating and estimating contaminant mass in DNAPL source areas. These tools can also be valuable for quantifying remedial performance.
GIS, statistical, mass-flux, mass-discharge, and spreadsheet calculators will
be presented as options for mass estimation.
A variety of remediation technologies are available for remediation of
DNAPL source areas, although few of these technologies achieve complete
(100 %) cleanup in most cases. The Short Course will present the strengths
and weaknesses of technologies, focusing on low-permeability deposits
similar to those that occur at the Site. Technologies to be presented include
in situ thermal remediation, in situ chemical oxidation, in situ chemical reduction, and in situ biological enhanced reductive dechlorination. The relative environmental sustainability of these options will be discussed, as well
as feasibility of sequencing technologies to achieve more cost-effective remediation.
Kurset er forbeholdt de ansatte i regionerne og er gratis. VJ afholder alle
udgifter til undervisning, ophold og forplejning. Regionerne betaler dog
selv for transporten til og fra kursusstedet. Der er deltagerbegrænsning på
25 personer, som tildeles efter først-til-mølle-princippet. Der vil dog blive
skelet til fordelingen mellem regionerne, hvis den er i øjenfaldende skæv.
Tilmelding skal ske på VJ’s hjemmeside: www.jordforurening.info
Senest fredag den 2. november 2012.
Husk at angive: Navn, region og e-mail.
Når tilmeldingsfristen er udløbet, udsendes der en deltagerliste og det
endelige program til deltagerne.
Side 2
Foreløbigt program
Side 3
Course Program
Time
09.30 - 10.00
10.00 – 10.45
10.45 – 11.00
11.00 – 11.45
11.45 – 12.15
12.15 – 13.15
13.15 – 14.00
14.00 – 14.30
14.30 – 14.50
14.50 – 15.20
15.20 – 16.20
Session Descriptor
Day 1 – January 15
Kaffe and Refreshments, Welcome and Introduction
Key Concepts Part 1 - Chemical and Physical Properties
of Chlorinated Solvents
Break
Key Concepts Part 2 - Review of Hydrogeologic Properties Governing Contaminant Fate & Transport
Group Exercise #1 & Discussion
Frokost
Methods for Detecting Presence of DNAPL, Delineating
Source Areas
Case Studies in Investigation of Chlorinated Solvent
Sites – Defining the Target Treatment Zone
Kaffe
Group Exercise #2 & Discussion
Estimating Chlorinated Solvent Mass – the Basis for Determining Remediation Performance
 Why bother estimate mass and mass distributions?
 DNAPL, Sorbed, Dissolved
 GIS tools
 Mass Flux and Mass Discharge
16.30 – 17.00 Group Exercise # 3 & Discussion
17.00 – 17.45 Discussion: Establishing Remediation Goals and Metrics
 General – Remedial Action Objectives
 Specific – Remedial Action Goals
 Mass reduction vs. concentration reduction
18.30 – 21.45 Banquet
Person(s)
Responsible
Christian
Neal &
Evan
Neal &
Evan
Torben
Neal &
Evan
All
Neal &
Evan
All
Christian
Time
Session Descriptor
9.00 – 9.15
9.15 – 10.00
Day 2 – January 16
Discussion of Concepts from Day 1
14 Compartment Model for Remedy Selection
10.00 – 10.30 RemS – Decision Matrix Tool for Remedy Selection
10.30 – 10.50 Kaffe
10.50 – 11.20 Group Exercise #4 & Discussion
11.20 – 11.45 Physical Remediation Methods for Source Areas
 Excavation
 Soil Vapor Extraction
 Multiphase Extraction
11.45 – 12.15 In Situ Thermal Remediation Methods (ISTR)
 Electrical Resistivity Heating
 Electrical Conductivity Heating
 Steam Enhanced Extraction
12.15 – 13.15 Frokost
13.15 - 13.45 Delivering Treatment Agents to Clay Till – Experience
with Different Injection Methods
13.45 – 14.15 In Situ Chemical Reduction (ISCR)
 Iron powder
 ZVI Clay
 PRBs
14.15 – 14.45 Biological Enhanced Reductive Dechlorination (ERD)
 Source Area Designs
 Biobarriers
14.45 – 15.15 In Situ Chemical Oxidation (ISCO)
 Permanganate
 Persulfate
 Fenton’s Reagent
 Ozone
15.15 – 15.30 Sustainability (Environmental Impact) of Remedial Alternatives
15.30 – 16.00 Discussion & Wrap-Up
 State of Danish experience with chlorinated solvent remediation
 Successes and Failures
 Future Directions
Person(s)
Side 4
Responsible
Christian
Neal
&
Evan
Charlotte
All
Neal
Evan
&
Neal
Evan
&
Charlotte
Neal
Evan
Torben
Neal &
Evan
Neal &
Evan
Christian
&
Med venlig hilsen
Christian Andersen
Side 5