Presented by: Terre Maize, Principal Land and Water Quality Consultant, 4Sight Consulting and Matthew Walker, Environmental Specialist, Transpower NZ
The purpose of the webinar is to present information about the deconstruction of the Transpower Pole 1 Building at Benmore Substation and the techniques used to remove residual elemental mercury from the concrete and asbestos-containing floor tiles and adhesive.
Mercury arc valve technology was used to generate power from the Pole 1 Building. Over the years, small quantities of elemental mercury were released within the building. Asbestos was also present in floor tiles and adhesive. An innovative approach was required to remove the tiles and adhesive because heat generated by traditional removal methods could volatilise any residual mercury beneath the tiles. Also, because Transpower wished to reuse the crushed concrete from the deconstructed building as backfill material. This required cleaning the concrete to an acceptable standard to protect human health and the environment.
This 60-minute webinar will cover:
- Background and project objectives (10 minutes)
- Pilot test – asbestos and mercury (10 minutes)
- Regulatory challenges and monitoring (10 minutes)
- Implementation (10 minutes)
- Lessons learned (5 minutes)
- Q & A (15 minutes)
About the presenters:
Terre has over 25 years of experience in environmental management. She is a CEnvP, with a specialist certification in Contaminated Land and holds a Bachelor of Science Degree in Civil/Environmental Engineering. Terre’s background includes contaminated land assessment and remediation waste management and minimisation, occupational exposure monitoring, health and safety planning and project management.
Matthew has extensive experience in environmental management of industrial developments, with ten years’ experience in Electricity Transmission and before that in the oil, gas and power generation fields. Matthew has international experience and knowledge of best practices with a focus on integrated pollution management to optimise the reduction of waste to land, air and water.