Case Study: Anaerobic Digestion Plant – County Tyrone

Similarly with gas membranes, containment/waterproofing membranes, SUDS liners and pond liners can be integrity tested to provide better lines of evidence that the installation of the proscribed measures meet the design.

On this project the contractor was installing a liner to a bund around an anaerobic digestion plant. GQA Environmental were employed to integrity test all the welded joints of the membrane installation and all penetration details. This was done by air lancing all the joints and penetration details to ASTM D4437.

Any areas of failure were marked for remediation and were repaired and re-tested before the installation was completed. A full report was provided to the contractor after the installation for submittal to the design team and local authority, which was covered by relative insurance.