A2V was appointed to upgrade two Sulphuric Acid facilities at Protea Chemicals’ Killarney Gardens site. The existing facilities had been largely destroyed by acid attack over the years an had to be largely rebuilt.

A2V carried out the conceptual design in conjunction with Proteas’ engineers, after which A2V completed the structural design. and project manged the implementation of the project.

The bunds comprised reinforced concrete wall and floors lined in polyethylene anchor knob sheeting. The Anchor Knob Sheets(AKS) used were UV stabilised 3mm thick polyethylene sheets which are stubbed with knobs that are cast into the concrete walls and slab soffits. AKS can also be grouted onto floor slabs and walls of existing structures. Once the concrete is partially cured the form work is removed and the joints between AKS sheets are sealed by plastic extrusion welding.

This method of lining proved to me more cost effective than some of the epoxy lining systems considered, despite the more labor intensive nature of the installation.

Newly installed AKS lining in the 50 percent sulphuric acid emergency containment bund

Newly installed AKS lining in the 50 percent sulphuric acid emergency containment bund