Petroleum Tank Technologies (PTT) Underground Petroleum Storage Tank (UPST) FRP Lining

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Petroleum Tank Technologies (PTT)Underground
Petroleum Storage Tank (UPST) FRP Lining
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Background

• Leakage from an Underground Petroleum Storage
  Tank poses a significant risk to
• - Persons,
• - Property,
• - Environment, and
• represents a major liability for the occupier /
  owner of the premises

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Risk

• Litigation
• Licence
• Fines
• Reputation
• Sales
• Environment Remediation Cost
• Loss of Strategic Site

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Risk

• Ageing single wall UPSTs represent an increasing
  environmental and financial risk
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• Tanks refurbished in Japan using theUV Curable
  FRP Lining have not had a single warranty claim
  many have been lined for more than 10 years

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Benefits of UV Cured FRP Lining

• Extends the life of the UPST by at least 20 years
  Guaranteed
• Suitable for Ethanol storage up to 100 by the
  standard use of a final coating of Novolac.
• Permanent manhole makes futurecleaning and
  inspections simple

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Benefits of UV Cured FRP Lining

• Automatic inventory monitoring can beestablished
  via the manhole (ATG system)
• Service Station continues to operateduring the
  tank relining
• Average tank repaired in a week

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Benefits of UV Cured FRP Lining

• Leaking tanks can be repaired - EPA guidelines
  must be met, - Site of the tank is
  critical, - Strict environmental
  assessment process is followed.

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Work Procedure

• Install temporaryenclosure
• Empty fuel tank
• Cut concrete
• Cover sludge with detergent mix

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Work Procedure

• Purge Tank, reducing the atmosphere to zero
  LEL, and zero VOCs.
• Cut access hole in tank
• Tank is cleaned
• Waste disposed of as per regulations

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Work Procedure

• Tank is inspected, ultrasonic thickness test.
• Testing is over entire internal surface, in a
  grid of 50 cm. squares.
• Assessed for suitability for repair

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Work Procedure

• FRP Lining is applied
• Sheets overlap
• Joins are sealed
• FRP Lining is cured by UV light

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Work Procedure

• Ethanol resistant coating applied
• Tank is pressure tested at 35 KPa
• Reinforcement and concrete is replaced
• Manhole cover is fitted

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Petroleum Tank Technologies Underground
Petroleum Storage Tank (UPST) FRP Lining

• Cost Effective
• Minimum loss of Retail Sales
• 20 Year Guarantee
• Minimal Duration or Disruption
• Safe Procedure
• Competent Operators
• Professional Service