Decongel Overview

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CBI Polymers Gel

Transcript of Decongel Overview

CBI Polymers Gel

* * = contamination• Neutral-pH, water-based, polymer hydrogel for decontamination– Utilizes surfactants to

lift contaminants– Soluble chelators bind

contaminants for transport

– Contaminants pulled into polymer upon drying (encapsulation)

What is CBI Polymers Gel?

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• Immediate fixation of the contamination

• Works on variety of substrates including concrete

• Effective on hydrophobic, hydrophilic, organic, inorganic, and particulate contaminants

• Environmentally friendly, no waste water

Apply Dry Peel

Safe to Use

• Safe and user-friendly• ~100 times less toxic than mouthwash• water-based with a near neutral pH• very high tensile strength for ease in

removal

Available in Three Versions

A PRODUCT OF CBI POLYMERS

Demonstrated & ProvenNuclear Power Plants

Chemical SpillsD&D SitesNuclear Medicine &

Research Labs

DoE Laboratories

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CBI Polymers Gel at U.S. Nuclear Power Plant

• How it’s used:– Reactor parts and tools (i.e.

dryer/separator strongback)– Refuel floor, on vessel

equipment, (dis-assembly tools), grapples, plant shafts, poles, etc.

– Floors and walls, post-flood– Spray gel on equipment as a

fixative, then ship– Hot Particle Zone free release

(i.e. where control rods are cleaned)

– Outages and regular maintenance

“No chemistry issues – can use on any system anywhere in the plant”

Spent Fuel Pool Flooding

CBI Polymers Gel at U.S. Nuclear Power Plant

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Leading Canadian Nuclear Power Plant: Heat Exchanger Leak

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Applying the Gel

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A PRODUCT OF CBI POLYMERS

Applying the Gel (cont.)

• Gel applied 3” up the wall– Tape edge– Ensure adequate

thickness

• Drain covered with tape

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Dry Time - Overnight

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A PRODUCT OF CBI POLYMERS

Peeling the Coating

• Coating was peeled the next day

• Came up from floor very easily

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Peeled

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Small amount of wasteSmall amount of waste

A PRODUCT OF CBI POLYMERS

Contact Gamma of Peeling

• Peeling: 4.5 mrem contact gamma

• More than expected recovered on the peel

• Area at the HX1 now has 0 cpm loose

• Rubber area has been removed

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Contact Info and Resources• Contact

– Roberto Mandanas (VP)• [email protected]• 708-557-1912 (mobile)

– Franklin Servan-Schreiber• [email protected]• +33 6 22 69 31 50

• Website– www.decongel.com16