Surfactant Enhanced Remediation Of Petroleum and Chlorinated Contaminated Sites Bud Ivey Ivey International SMART Remediation Ottawa, ON February 16, 2017 SMART is Powered by: www.vertexenvironmental.ca
SURFACTANT ENHANCED PUSH-PULL METHOD FOR IN-SITU REMEDIATION OF PETROLEUM CONTAMINATED SOIL AND GROUNDWATER Presenter George (Bud) Ivey Ivey International Inc. SMART Remediation Ottawa CANADA February 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. 1
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 2
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 H 2 O 3
Chemical Reactions A + B C This 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 4
Public Domain Presentation CHESTER 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 Location Chestertown MD USA 5
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 6
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 14 14 MW001 MW019 12 MW002 MW003 12 MW020 MW021 MW004 MW022 10 MW005 MW006 10 MW023 MW024 Product Levels (ft.) 8 6 MW007 MW008 MW009 MW010 MW010R 8 6 MW025 MW027 MW028 MW029 MW030 MW011 MW031 4 MW012 MW013 4 MW031R MW032 2 MW014 MW015 2 MW033 MW034 MW016 MW035 0 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 MW017 MW018 MW019 0 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 MW037 MW038 MW040 7
Recent Product Levels (ft.) 2013 2015 0.7 0.6 0.5 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 Product Levels (ft.) 0.4 0.3 0.2 0.1 0 Stakeholder Concerns Chester River Hospital Center Time to Closure (>20 Yrs.) High Costs $$$/yr. O&M Environmental Risks Legal Liability Media Relations Public Perception Chestertown Water 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 8
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 Recovery wells pump into holding tank (wet well) Pre treatment Filtration system (sediment) 9
Pump and Treat Treatment System Wet Well Bag Filters MYCELX Treatment Discharge to Storm Sewer Under MDE Discharge Permit Pump and Treat Treatment System 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) 10
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 11
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 12
Environmental Monitoring & Pilot scale layout West East Correction: RW3B Screen Interval Starts at 9.45 ft. 13
North South Injection and Extraction 14
r 1:50 Ratio of Ivey sol To Water For The Pilot Scale Application 15
IVEY Developed Field Testing Method for Surfactant Has >96% correlation with laboratory testing THE FUTURE OF FIELD TESTING FOR SURFACTANT DEMONSTRATION DURING FIRST BREAK 16
IVEY SOL 33 IVEY SOL 34 17
Injection Radius of Influence Area of Influence r= 10 to 15 feet r Extraction Radius of Influence 18
TPH DRO Mass Recovery Calculations MW 22 Ivey sol Injection #1 426% Increase in TPH DRO Ivey sol Injection #2 6,240% Increase in TPH DRO Ivey sol Injection #3 6,846% Increase in TPH DRO MW 40 Ivey sol Injection #1 7,333% Increase in TPH DRO Ivey sol Injection #2 5,133% Increase in TPH DRO Ivey 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 DRO Ivey sol Injection #3 3,226% Increase in TPH DRO MW 42 Ivey sol Injection #1 948% Increase in TPH DRO Ivey sol Injection #2 824% Increase in TPH DRO Ivey 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 19
Its Easy To For Us To Evaluate Your Site Writable 1-Pager Free Site Evaluation CONTACT INFORMATION 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 20