i-rox - ivey international inc. · i-rox® chemical reduction-oxidation (redox) technology 1.0...

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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)

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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.

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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.

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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.

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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

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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.

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Soil samples being prepared for three I-ROX

® application tests

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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.

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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.

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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

i-rox - ivey international inc. · i-rox® chemical reduction-oxidation (redox) technology 1.0...

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