Dewatering and Aeration Upgrades at the Merrimac Treatment Plant
Abergeldie was engaged by City of Gold Coast to provide essential upgrades and various operational improvements at the Merrimac Wastewater Treatment Plant (WWTP) as part of an overall long-term asset management strategy and to increase capacity to cater for increased flows and a rapidly expanding population.
Scope of works
The project combined the following projects for efficient delivery of the larger works:
- Merrimac WWTP New Dewatering Facilities inclusive of;
- Waste Activated Sludge (WAS) Break Tank
- WAS Thickening System
- WAST Dewatering System
- Outloading System
- High Voltage & Low Voltage Works
- System Controls
- Merrimac WWTP Stage 4 and 5 Bioreactors Aeration Header Upgrades.
The delivery works included civil, mechanical, electrical and process engineering, design, management, and construction to deliver the upgrades.
Working collaboratively to overcome challenges
Abergeldie worked collaboratively to design and plan the works under the contract. The positive collaborative culture between Abergeldie, our delivery partners, and City of Gold Coast ensured that challenges were identified and addressed efficiently, and input into the design and process was provided to help mitigate costs and delays.
Environmental management
Environmental controls were put in place to mitigate the impact of the works on the environment. All materials disturbed onsite were deemed to be PFAS-contaminated and were managed and disposed of in the appropriate manner.
Community benefits
The upgrades at the Merrimac Treatment Plant have improved the reliability and efficiency of the treatment plant, ensuring it can better cater for future population growth. These enhancements also laid the groundwork for sustained operational efficiency, enabling the plant to meet the increasing demand while maintaining high environmental standards.
