Post on 26-Aug-2020
Bud Ivey Ivey International
Surfactant Enhanced Remediation Of Petroleum and Chlorinated Contaminated Sites
www.vertexenvironmental.ca
SMART RemediationOttawa, ON
February 16, 2017
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SURFACTANT ENHANCED PUSH-PULL METHOD FOR
IN-SITU REMEDIATION OF PETROLEUM CONTAMINATED SOIL AND GROUNDWATER
Presenter
George (Bud) IveyIvey International Inc.
SMART RemediationOttawa CANADAFebruary 16, 2017
Copyright © 2017
All rights reserved. No part of this presentation may be reproduced or
transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any
information storage and retrieval system, without the permission in writing from
Ivey International Inc.
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Ivey‐sol is an international award winning Remediation Technology Company, founded in 1993.Celebrating 25 Years In Business in 2018
We established reputation for developing innovative remediation products and processes technology. (1 + 1 = 3)
Our most notable innovation is the Ivey‐sol® Surfactant Technology ‐ used globally.
Ivey‐sol® products and processes are very effective for in‐situ and ex‐situ remediation of petroleum hydrocarbons (LNAPL), chlorinated solvents (DNAPL), and organo‐metallic COC’s
Ivey‐sol® pairs very well with Physical, Biological and Chemical remediation technologies (1+1=3).
Our corporate goal is to be a global leader of sustainable remediation technology for our client’s(Collaborate with other technology providers, and stakeholders to achieve Site Goals)
Source Pathway Receptor Model
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How Old Is The Environmental Industry
(a.k.a. Environmental Movement)?
Who is older – Me Vs. Environmental Industry ?
45 to < 50 Years (+/‐)
It’s is a relatively young industry…
Gaining Local, National, and International Attention
If the environmental movement was an infection, after my visiting 44 countries around the world, I can say the world has the environmental flu! (There is hope)
What Is Water ?
Its Not H2O
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Chemical Reactions
A + B CThis situation does not exist for >99.99% of reactions
By‐products are formed – Not Just ‘C’ Is Produced(Literature shows ‘C’ because we are interested in it)
A + B ‐‐‐> C + D + E + ?? + ???
We Can Purify Reaction End‐Products To Meet: Industrial, Commercial, Household, Medical and Research Grade Requirements
Chester River Hospital Center
Fuel Oil Spill Release Discovery 1991
Ivey-sol® Surfactant Pilot Scale Application July 2014(Evaluation Report January 2015)
Remediation Team Members
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Public Domain PresentationCHESTER RIVER HOSPITAL CENTER
GROUNDWATER REMEDIATION
2013/2014 ACTION PLAN MODIFICATIONS
CASE NO. 1987-2534-KE
PILOT TEST EVALUATION REPORT AND PROPOSED 2015 ACTION PLAN
JANUARY 19, 2015
Remediation Team Members
Site LocationChestertown MD USA
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Site Background Information• Chester River Hospital Center 7.1 Acres
• Site development since 1935 as hospital
• Fuel Oil release discovered May 1991 (10,000 Gal. tank was empty over a weekend)…likely leaking for years
• Public Water supply well 850 ft. (259 m) down gradient, shut down until remediation system was installed
• Groundwater remediation system installed 1991
• 2012 Earth Data report indicated ≈ 83,452 Gal. (315,900 L) of LNAPL removed from site between 1991 to July 2012
• Initiation of MDE 12 month Closeout Monitoring July 2012 to June 2013, and the treatment system was shut off;
• Low levels of TPH (DRO) detected in June 2013 at Eight (8) of Seventeen (17) downgradient monitoring wells
• Pump & Treatment System Turned Back On!
• Stakeholder Concerns Started Mounting!
North
Chestertown Wellhead Protection Area (Unconfined Aquifer)
Site up-gradient and <850 Ft. From Town Production Wells
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Geology & Hydrogeology
• Groundwater and Surface water drains into the Chester River, a tidal tributary of Chesapeake Bay (south west)
• Layered sand and silty sand to approximately 120 ft. (Aquia Formation, primary aquifer near site; Pennsauken Formation, generally absent near site)
• Water‐table elevations fluctuate seasonally between 3 to 5 feet [Smear Zone] with depth to groundwater around 30 ‐ 50 ft. bgs on‐site
• Chestertown’s water supply from an ‘Unconfined Aquifer’
Chester River Hospital Center
Historical Product Levels (ft.) 1991 ‐ 2013
0
2
4
6
8
10
12
14
4/26/1990
5/13/1992
5/9/1994
3/20/1996
4/3/1997
4/8/1999
4/12/2001
12/24/2001
3/28/2002
8/13/2002
1/17/2003
6/24/2003
11/11/2003
5/25/2004
11/15/2004
4/28/2005
12/9/2005
7/19/2006
1/19/2007
8/24/2007
3/4/2008
9/9/2008
4/13/2009
10/23/2009
5/13/2010
2/7/2011
10/19/2011
6/25/2012
10/28/2013
Product Levels (ft.)
MW001
MW002
MW003
MW004
MW005
MW006
MW007
MW008
MW009
MW010
MW010R
MW011
MW012
MW013
MW014
MW015
MW016
MW017
MW018
MW019
0
2
4
6
8
10
12
14
5/28/1991
9/9/1992
6/15/1994
4/18/1996
4/1/1997
12/10/1998
12/19/2000
12/5/2001
2/21/2002
6/12/2002
11/5/2002
3/25/2003
8/11/2003
1/26/2004
7/13/2004
12/2/2004
5/12/2005
12/9/2005
7/12/2006
12/13/2006
7/13/2007
1/4/2008
6/23/2008
1/12/2009
7/13/2009
1/19/2010
7/28/2010
4/1/2011
12/13/2011
8/23/2012
11/15/2013
MW019
MW020
MW021
MW022
MW023
MW024
MW025
MW027
MW028
MW029
MW030
MW031
MW031R
MW032
MW033
MW034
MW035
MW037
MW038
MW040
8
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
Product Levels (ft.)
MW001 MW002 MW003 MW004 MW005 MW008 MW009 MW010R MW011 MW012
MW013 MW014 MW015 MW016 MW017 MW018 MW019 MW020 MW021 MW022
MW023 MW024 MW025 MW028 MW029 MW031R MW032 MW033 MW034 MW035
MW037 MW040 MW041 MW042 MW043 MW044 MW045 MW046 MW047 MW048
MW049 MW050 RW004 RW01B RW02D RW03B
Recent Product Levels (ft.) 2013‐2015
Stakeholder Concerns
Chester River Hospital Center
• Time to Closure (>20 Yrs.)
• High Costs $$$/yr. O&M• Environmental Risks• Legal Liability• Media Relations• Public Perception
ChestertownWater Supply
• Hydraulic Control• Off‐site TPH Migration• Risk to Well Field (Town Aquifer)
• Legal Concerns• Communications
[Did not know about 2012 closure]
• Public Perception
Maryland Department of Environment (MDE)
• Regulatory Oversight• Off‐site Migration• Clean‐up Standards• Mediation• Legal Concerns• Public Perception
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Treatment System Background• For over twenty (20) years CRHC’s focus was:
Remove liquid petroleum hydrocarbons (free product)
Remediate the groundwater using a “Pump and Treat” (P&T) system consisting of six (6) recovery wells, four (4) pre-filters (sediment and Fe), and two (2) MYCELXCELX®
filtration units, with discharge to storm sewer
• Later expanded to Seven (7) Recovery wells and present filtration/treatment system
• P&T System Designed for 100-120 Gallons of groundwater per minute (379 to 455 L/min) extraction rate requiring treatment (They have effective hydraulic control on-site)
Recall - 83,452 Gallons (315,900 L) of LNAPL product recovered between 1991 - July 2012
Treatment System
Pre‐treatment Filtration system (sediment)
Recovery wells pump into holding tank (wet well)
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‘Pump and Treat’ ‐ Treatment System
Wet Well
Bag Filters
MYCELX Treatment
Discharge to Storm Sewer – Under MDE Discharge Permit
Recovery Wells
(100‐120 gallons per minute)
Wet Well (Holding tank,
sample location @ each well inflow)
Bag Filter(Pre‐treatment)
Mycelx Treatment
Storm Water Discharge
(sample location)
‘Pump and Treat’ ‐ Treatment System
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Maryland Department of Environment GW Cleanup Standards for Type I and II Aquifers
Benzene Toluene Ethylbenzene Xylenes Total BTEX MTBE Naphthalene TPH‐DRO TPH‐GRO
ug/L mg/L
5 1,000 700 10,000 NA 20 NA 0.047 0.047
Interim Risk Based Goal: < 1 mg/L
How Did We At IVEY Get Involved…
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SURFACTANT ENHANCED PUSH-PULL METHOD
Pilot Scale In-situ Application
July – August 2014
Completion of Three (3) Push-Pull Applications
Site Layout and Hydraulic Control
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Environmental Monitoring & Pilot
scale layout
‘
West East
Correction: RW3B Screen Interval Starts at 9.45 ft.
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North South
Injection and Extraction
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r
1:50 Ratio of Ivey‐sol To Water For The
Pilot Scale Application
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IVEY Developed Field Testing Method for SurfactantHas >96% correlation with laboratory testing
THE FUTURE OF FIELD TESTING FOR SURFACTANT
DEMONSTRATION DURING FIRST BREAK
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IVEY‐SOL
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IVEY‐SOL
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r
Area of Influencer = 10 to 15 feet
Injection Radius of Influence
Extraction Radius of Influence
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TPH‐DRO Mass Recovery Calculations
MW‐22 Ivey‐sol® Injection #1 426% Increase in TPH‐DROIvey‐sol® Injection #2 6,240% Increase in TPH‐DROIvey‐sol® Injection #3 6,846% Increase in TPH‐DRO
MW‐40 Ivey‐sol® Injection #1 7,333% Increase in TPH‐DROIvey‐sol® Injection #2 5,133% Increase in TPH‐DROIvey‐sol® Injection #3 5,156% Increase in TPH‐DRO
MW‐41 Ivey‐sol® Injection #1 Not Calculated (Missed Sample)Ivey‐sol® Injection #2 18,966% Increase in TPH‐DROIvey‐sol® Injection #3 3,226% Increase in TPH‐DRO
MW‐42 Ivey‐sol® Injection #1 948% Increase in TPH‐DROIvey‐sol® Injection #2 824% Increase in TPH‐DROIvey‐sol® Injection #3 3,737% Increase in TPH‐DRO
Averaged TPH-DRO Concentration Pre Injection Event =[Pre Ivey-sol injection TPH-DRO (ppm) X Concentrations (ppm)]
Averaged TPH-DRO Concentration Post Injection Event =[Post Ivey-sol Injection TPH-DRO (ppm) X Concentrations (ppm)]
Mass Recovery =
[Averaged TPH-DRO Concentration Post Injection Event] X 100%[Averaged TPH-DRO Concentration Pre Injection Event]
= % Mass Recovery Increase For The Ivey-sol® Push-Pull Event
Mass Recovery Calculations Completed by EBA Engineering
SUMMARY• As a result of the investigations, analysis, and calculations of mass recovery the Technical Team
determined that in the Push‐Pull wells recovery rates were significantly enhanced:
One thousand percent (1,000%) to Eighteen thousand percent (18,000%) TPH mass recovery
• Extrapolation: Soil and groundwater remediation can be achieved using Ivey‐sol ‘Push‐Pull’ process, with
‘Smear‐Zone’ targeting ability; Safe To Use – Minimal HS&E Concerns & Biodegradable; Easy to inject ‘Push’ and does not require pressure uses gravity feed (No chemical resistant
equipment required) Effective for treating sorbed TPH in smear zone, including remaining NAPL Field Surfactant Testing – Allows Real Time Monitoring During the ‘Push’ and to minimized
volume of groundwater extracted during the ‘Pull’ phase Effective Communication with stakeholders was paramount
• Full Scale: MDE approved full scale application in June 2015 (Priority Zone 1, 2, and 3 Remediation Approach) Started Full Scale Autumn of 2015
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Its Easy To For Us To Evaluate Your Site
Writable 1-Pager
Free Site Evaluation
Ivey International Inc.
George (Bud) Ivey, B.Sc., CES, CESA, P.Chem., EP
President and Senior Remediation Specialist
Mobile: + 1 250 203 0867
Email: budivey@iveyinternational.com
Web: www.iveyinternational.com
CONTACT INFORMATION