Project Overview

Located in Bangholme, the Eastern Treatment Plant uses innovative processes to turn sewage into Class A recycled water. AAH was contracted to conduct a clean up of the internals to one of their tanks.

• Internal clean up of tank following from a sandblasting incident that inadvertantly disturbed asbestos contaminated materials
• Removal of asbestos gaskets from pipework
• Removal of asbestos mastic to wall and floor joints

Critical Factors/Challenges

The challenges and critical factors to successfully complete the works were.

• Tank access. Materials and waste had to be craned in and out of the tank
• Arrestance efficiency of filter cloth. We had to ensure that a minimum efficiency of 97% at 5 microns was reached during the filtration process
• Removal of splattered patches of asbestos mastic outside of the wall and floor joints
• Works to be carried out in restricted space (confined)
• Removal of contaminated water through a filtration system
• 2 way radio system in place

Outcomes

• All works completed successfully
• Clearance certificates issued by independent hygienist
• 0 safety incidents
• 726 man hours worked to complete works