Oxygen Release Compound (ORCOxygen Release Compound (ORC

Timely, Cost-Effective Solutions for Timely, Cost-Effective Solutions for Accelerating Natural Attenuation Accelerating Natural Attenuation

What is ORC?What is ORC?• A proprietary time-release formulation ofA proprietary time-release formulation of

magnesium peroxide (MgOmagnesium peroxide (MgO22))

• Used for accelerated bioremediation of Used for accelerated bioremediation of aerobically degradable contaminantsaerobically degradable contaminants

• ChemistryChemistry

MgOMgO22 + H + H22O 1/2 OO 1/2 O22 + Mg(OH) + Mg(OH)22

ORC’s Patented ORC’s Patented Time-Release FeatureTime-Release Feature

• Typical MgO2 releases oxygen for only 3-4 weeks due to “Lockup”

• Typical CaO2 releases for 3-4 weeks (Lockup) and presents pH problem

• Patented structure of ORC crystal allows for continued release of oxygen by avoiding Lockup and moderate pH

ORC’s Patented ORC’s Patented Time-Release FeatureTime-Release Feature

Extended oxygen release profileExtended oxygen release profile • Magnesium peroxide crystalline structure Magnesium peroxide crystalline structure

intercalated with food-grade phosphate intercalated with food-grade phosphate • Releases oxygen for up to Releases oxygen for up to 6 to 12 months6 to 12 months

Environmentally SafeEnvironmentally Safe• Insoluble Mg compounds maintain moderate Insoluble Mg compounds maintain moderate

pH levels (KpH levels (Ksp sp = 1.8 x 10= 1.8 x 10-11-11))

• Safe reaction by-product : solid Mg(OH)Safe reaction by-product : solid Mg(OH)22 or or

“Milk of Magnesia”“Milk of Magnesia”

0 60 120 180 240 300 360 420 DAYS

0%

10%

20%

30%

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70%

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100%

CU

MU

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HIGH TPH FLUX MODERATE TPH FLUX

NO TPH FLUX

KINETICS OF OXYGEN RELEASE FROM ORC

Benefits of ORC’s Benefits of ORC’s Time-Release FeatureTime-Release Feature

Rapid Site ClosureRapid Site Closure

- - Accelerates natural attenuation by 10X to 1000X—Accelerates natural attenuation by 10X to 1000X—reducing time to site closurereducing time to site closure

Cost-EffectiveCost-Effective- No capital costs for systems- No capital costs for systems

- No operation & maintenance costs- No operation & maintenance costs

- Reduced installation costs - Reduced installation costs

Cost ComparisonCost ComparisonORC vs Other Technologies

Site AS/SVE ORC Savings %Savings

Okalahoma $158,000 $46,000 $112,000 70%

California $180,000 $80,000 $100,000 55%

Alabama $99,000 $26,000 $73,000 74%

Site Monitor Only ORC Savings %Savings

Okalahoma $54,000 $46,000 $8,000 15%

Alabama $54,000 $26,000 $28,000 52%*All values were derived independently by the sites’ consultant. The costs are full system costs with the objective of site closure

ORC vs Monitoring Only

Benefits of ORC’s Benefits of ORC’s Time-Release FeatureTime-Release Feature

Non-invasiveNon-invasive• In-situ technology minimizes physical In-situ technology minimizes physical

disturbance to propertydisturbance to property

Wide regulatory acceptanceWide regulatory acceptance• Installed in all 50 states of USInstalled in all 50 states of US

Proven technologyProven technology• Installed on >6,500 sites worldwideInstalled on >6,500 sites worldwide

Aerobically Degradable Aerobically Degradable CompoundsCompounds

• Petroleum HydrocarbonsPetroleum Hydrocarbons– BTEXBTEX– Alkanes (diesel, fuel oil, etc.)Alkanes (diesel, fuel oil, etc.)

• AlcoholsAlcohols• KetonesKetones• MTBEMTBE• Vinyl ChlorideVinyl Chloride• Etc.Etc.

Oxygen Release CompoundOxygen Release Compound ((Applications)Applications)

• Saturated Zone Source TreatmentSaturated Zone Source Treatment– ORC slurry injected into source areaORC slurry injected into source area

• Excavated Tank TreatmentExcavated Tank Treatment– ORC applied as backfill amendment after ORC applied as backfill amendment after

UST excavationsUST excavations

• Oxygen Barrier-PRBOxygen Barrier-PRB– ORC socks or slurry applied downgradient ORC socks or slurry applied downgradient

to cut-off leading edge of plume or upgrad- to cut-off leading edge of plume or upgrad- ien to sweep oxygen across plumeien to sweep oxygen across plume

Source Treatment with Source Treatment with Slurry Injection ApplicationSlurry Injection Application

ORC powder is ORC powder is mixed with watermixed with waterto form a slurryto form a slurry

Direct-push injection of slurryDirect-push injection of slurryORC slurry is pouredORC slurry is poured into the hopper of a into the hopper of a Slurry Injection PumpSlurry Injection Pump

Is ORC right for your project?Is ORC right for your project?Follow these steps to find out!Follow these steps to find out!

• Step #1 – Contact Regenesis Technical Support Step #1 – Contact Regenesis Technical Support for a for a freefree site evaluation, cost estimate and site evaluation, cost estimate and proposal.proposal.

• Step #2 – Evaluate free ORC Proposal, determine Step #2 – Evaluate free ORC Proposal, determine if it meets your requirements and goalsif it meets your requirements and goals

• Step #3 – If so, you can order ORC directly from Step #3 – If so, you can order ORC directly from Regenesis over the phone at (949) 366-8000Regenesis over the phone at (949) 366-8000

Steps to obtaining HRC - contn’d

• Step #4 - ORC is typically shipped by truck, and is delivered in 30 lb. buckets or Filter Socks as specified

*Note: MSDS and installation instructions are supplied.

• Step #5 - Receive product and apply to your site.

REGENESIS SUPPORTREGENESIS SUPPORT

Regenesis offers support Regenesis offers support freefree of charge: of charge:• ORC engineering/design servicesORC engineering/design services• ORC application/installation tech supportORC application/installation tech support

www.regenesis.com• Technical Bulletins with Technical Bulletins with • Case StudiesCase Studies• Peer-reviewed LiteraturePeer-reviewed Literature• Download the Applications and Real Estate SoftwareDownload the Applications and Real Estate Software

For More Informationplease contact us at:

(949)366-8000(949)366-8000

California, USACalifornia, USAor go toor go to

www.regenesis.comwww.regenesis.com