I-ROX - Ivey International Inc. · I-ROX® Chemical Reduction-Oxidation (REDOX) Technology 1.0...
Transcript of I-ROX - Ivey International Inc. · I-ROX® Chemical Reduction-Oxidation (REDOX) Technology 1.0...
1
www.iveyinternational.com
I-ROX®
Chemical Reduction-Oxidation (REDOX) Technology
1.0 TECHNOLOGY OVERVIEW
The I-ROX® remediation products and application technology represent a new innovative
tool for in-situ and ex-situ remediation of a broad range of air, soil and groundwater LNAPL
(Light Non-Aqueous Phase Liquids) and DNAPL (Dense Non-Aqueous Phase Liquids)
contaminants. I-ROX® is based on an innovative chemical platform that employs the
integrated chemical reductive-oxidative reaction mechanisms for the degradation of
persistent organic pollutants (POP) to achieve the applicable regulatory clean-up
standards internationally. This technology is scheduled to be patent pending in 2013.
I-ROX® Enhanced Chemical Reduction-Oxidation has either in-situ and ex-situ application
processes to rapidly break down contaminants in hours to days versus weeks to months or
years. The I-ROX® chemical reactions for petroleum hydrocarbons and selected
chlorinated solvents are shown below.
Note: petroleum hydrocarbons include: BTEX, TPH (F1 to F4) and PAH.
Note: selected chlorinated solvents (list being developed and expanded in 2013-2014)
2
www.iveyinternational.com
I-ROX® is a rapid and cost effective remediation technology that fulfills a niche treatment
option for air, soil and groundwater contamination, where few other options presently exist.
In addition to being well suited for small to large scale site applications, it will address
client and site factors which often include: the need to limit and/or resolve environmental
risks, limited time frame, limited space, and limited budget to achieving compliance with
regulatory clean-up standards.
2.0 CASE STUDIES
This technology has been successfully applied at both bench scale and field scale
applications in Australia, Canada, Europe, North America and South America. Sample
case studies from 2009 through 2011 are provided below. Additional site applications in
2012 and 2013 will be made public following presentation at environmental conferences.
2.1 Wastefund Sponsored I-ROX Soil PAH Treatment Pilot (MGP Site) Melbourne, AUSTRALIA:
By way of an example, the following results are from a government funded (WASTE
FUND) and Victoria EPA managed site application in Melbourne, Australia (September to
November 2009).
Understanding that Polycyclic Aromatic Hydrocarbons (PAH) are considered good
representatives of petroleum hydrocarbon contaminants, as present in gasoline, diesel,
and heavy-oils, this peer reviewed application demonstrates the efficacy of this
technology.
The following pictures show the reagent soil application, mixing by the excavator, and
subsequent stockpiling on a liner and covered for progress monitoring.
3
www.iveyinternational.com
Ex-situ application Post-treatment soil placement on Liner
As indicated in the graph below, the total PAH and Benzo(a)pyrene soil concentrations
were significantly reduced in just 48 hours (> 60%), and the soils achieving the strictest
clean-up objectives in less than 8 weeks.
I-ROX®
treatment of PAH
impacted soil at an EPA funded site undergoing site redevelopment for mixed use commercial residential land uses. The Total PAH and Benzo (a) pyrene concentrations were significantly reduced by 61.4% and 65.7% respectively. As such, these soils were treated to re-use standards in just two (2) days after treatment. Subsequent analysis at eight (8) weeks confirmed the soils were remediated (>99%) to 0.1 ppm to non-detectable for PAH contamination, and could be re-used for the strictest land use application.
4
www.iveyinternational.com
2.2 Oil & Gas Site Soil Remediation, Northern SK, CANADA:
The following photograph shows an I-ROX® spray application at a remote site in northern
Canada (only accessible by ice roads in the winter) in early March, 2010. A total of 865
tons of soil impacted with diesel range petroleum hydrocarbons (>5000 ppm TPH) were
treated using the ex-situ I-ROX® treatment method to well within regulatory guidelines with
soil samples showing trace to non-detectable levels for TPH components. Soils were
processed using an Allu bucket and the I-ROX® amendment being spray applied.
I-ROX
® treatment of soil at remote site northern SK, Canada (- 15 to - 25
oC)
Client Quote: “We accessed the remote site by helicopter and sampled the soil pile
in early August, 2010. The laboratory results confirmed that the soils
were compliant with the Tier I regulatory clean-up standards, with
several of the samples showing trace to non-detectable petroleum
levels in the F1, F2, F3 and F4 hydrocarbon fractions.”
2.3 Soil Remediation, Patagonia, ARGENTINA:
The following photograph depicts soils before and after I-ROX® Treatment. The soils were
originally impacted heavy-end petroleum hydrocarbons 15 to 25% (150,000 to 250,000
ppm) from an oil field in Patagonia, Argentina. Following treatment, a significant colour
change and reduction in petroleum hydrocarbons concentration was realized.
5
www.iveyinternational.com
I-ROX
® pre and post treatment oil and gas impacted soil, Patagonia Argentina
These results (< 1%) confirmed that I-ROX® could be used as a stand along soil treatment
technology, or that it could be used as a pre-treatment step for subsequent bioremediation
treatment.
2.4 Soil Remediation, Andorra, EUROPE:
In July 2010, Ivey international Inc. worked on a soil remediation project where soils were
impacted with PCB (Poly-Chlorinated Biphenyls) transformer oils. The PCB residual
concentration was non-detectable, the baseline soil TPH levels exceeded 11,000 ppm and
was reduced to <1500 ppm in 21 days following ex-situ I-ROX treatment.
I-ROX
® spray application to the soil Post-treatment soil stockpile
6
www.iveyinternational.com
The soils were sampled by NOVATERRA before, during and after treatment with results
platted in the graph below.
I-ROX
® remediation of transformer oil contaminated soil.
Based on these results, the I-ROX® treatment achieved a greater than 85% reduction in
just 24 days. With I-ROX® the European Union (EU) Regulatory soil clean-up objective
was achieved rapidly.
2.5 Bench Scale Treatment Jet Fuel Soil Treatment (Europe)
Between December 2010, and January 2011, a bench scale treatment of Jet Fuel
impacted soils was undertaken using I-ROX®. The photograph below shows the samples
being prepared for treatment and the graph shows the results, for the three different
application rates, after just 7 days while maintained at 4oC.
7
www.iveyinternational.com
Soil samples being prepared for three I-ROX
® application tests
8
www.iveyinternational.com
After the addition of I-ROX® the corresponding reductions in F1, F2, F3 and F4, after just 7
days, while being stored at 4oC (Cold) can be summarized as follows:
5.03 % Ivey-sol® F1 23.54% F2 (5.31%)* F3 10.99%
10.12% Ivey-sol® F1 71.33% F2 10.64% F3 23.08%
20.07% Ivey-sol® F1 81.08% F2 39.36% F3 45.05%
Note: Understanding reaction rates double with every 10 oC increase in temperature, the
above results should be viewed as sluggish and conservative. As such impressive!
2.6 Bench Scale Treatment – Drill Cuttings (South America)
In May 2011, a bench scale efficacy treatment test was performed on Drill Cuttings form
an oil and gas site in South America using I-ROX®. The photograph below shows the drill
cutting samples (approximately 250 g each) being treated in glass jars at three different
application rates. Note bubbling intensity with increasing I-ROX concentration.
Increasing % of I-ROX From left to right.
9
www.iveyinternational.com
After the addition of I-ROX® the corresponding reductions in F1, F2, F3 and F4, after just 7
days, while being stored at 4oC, can be summarized graphically as shown below.
The dotted portion of the graph extends the 7 day observations following the same
degradation rate for the I-ROX III application which yielded the greatest rate of chemical
degradation. The treatment objective for these wastes was top get below 1% (10,000
ppm). Based on the rate of degradation for I-ROX III in less than 21 days.
Results after 7 days post treatment at 4
oC.
10
www.iveyinternational.com
CLOSING
Additional case studies are available upon request. I-ROX® can be combined with Ivey-
sol® surfactants (SEC-Surfactant Enhanced Chemicalization), which can make the sorbed
contaminants more ‘Chemically Available’ for the associated chemical oxidation/reduction
reactions of I-ROX. Anecdotal feedbacks from environmental consultants who have
completed SEC applications have been quite positive. Due to client confidentiality, they
are not always in a position to share site application information publicly.
The application and use of this technology will continue globally in 2013-2014.
Prospective clients will be provided with assistance to obtain regulatory application
approvals and on-going technical support, both on or off-site, as this new innovative
remediation tool has gained increased international market application. As indicated on
page 1, this technology is scheduled to be Patent Pending in 2013.
If you have any direct questions, please contact our office:
Ivey International Inc. Tel: + 1 604 538 1168 Fax: + 1 888 640 3622 E-mail: [email protected] Web: www.iveyinternational.com Ref: I-ROX/Info Sheet/130401-04