1300 083 042
Holts Hill Fluoride Dosing System Upgrade
About the project
This project upgraded the fluoride dosing system which provides fluoridation for the East and West Bank mains. The system has a combined capacity of 1000ML/day.
Location
Mt Crosby, Queensland
Client & Duration
Seqwater
November 2017 - September 2018
Project Scope
- Decommission and remove redundant equipment
- Supply and install new HDPE dosing and batching tanks and equipment
- Supply and install new service water pumps, dosing pumps, pipework and instrumentation
- Overhaul fluoride screw feeder and install of new gearbox for increased capacity
- Upgrade electrical and control systems
- Re-commission dosing system, performance testing and operator training
Challenges
- Although this was a construct-only project, significant re-design was required and undertaken. These design changes resulted in rework and delays
- The tight time-frame imposed due to the critical nature of the facility meant alternative design processes had to be implemented
- All decommissioned pipework and equipment had to be treated and handled as fluoride contaminated trackable waste
Achievements
- To ensure the dosing system performs as per design during peak periods, commissioning was planned and executed in detail
- Detailed planning and early procurement of long lead time items prevented delays
- Strict compliance with all environmental regulations and the application of controls, enabled all trackable waste to be disposed of without incident
- Close collaboration with all stakeholders enabled fast-tracking of the service water system re-design to maintain schedule
- Despite working in restricted spaces and at heights, there were no safety incidents and zero lost time injuries
- Implemented design changes to ensure the system met the client’s specific requirements and functioned as intended
