November 28, 2025

Custom Industrial Washdown Treatment System for a Major Gold Miner

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Centurion’s Water & Wastewater Solutions business line has completed a purpose-built truck washdown wastewater treatment plant for a major gold mining operator in Boddington, Western Australia. The system is now operational and supporting cleaner fleet maintenance, improved industrial wastewater treatment, safer handling and ongoing compliance with environmental requirements. 


Scope of Work


The client needed a reliable treatment system capable of processing heavily contaminated washdown water from heavy mobile equipment. The solution had to be fully automated, simple to operate and designed to suit WA’s harsh conditions while meeting site-specific electrical, instrumentation and environmental standards. 


Key requirements included: 


  • High-efficiency removal of solids, oils, grease and emulsions 
  • Low operator involvement 
  • Weather-protected, durable design 
  • Support for installation, commissioning and operator training 


The washdown stream contained a complex mix of contaminants that exceeded what a traditional oily water separator could manage. The plant also needed to cope with fluctuating flows while reducing manual handling and protecting sensitive equipment from the elements. Integration with existing site systems added further complexity. 


Execution


Centurion delivered a customized, high-performance industrial wastewater solution designed to handle tough washdown water and deliver consistent, reliable treatment. The package included: 


  • 125kL/h Sedimentation Dissolved Air Flotation (SDAF) treatment plant 
  • Automated sludge removal system 
  • Treated water recirculation and chlorination dosing for process water re-use 
  • Fully automated MCC panel with 4G remote monitoring 
  • Containerized, weather-protected housing for pumps, dosing systems and controls 
  • Quality instrumentation from E&H, WIKA and Rotork 
  • On-site commissioning and operator training 

 

Outcome & Value Delivered 


Purpose-built wastewater treatment infrastructure improved washdown water management and environmental compliance at a major Western Australia gold mine.


This project demonstrates Centurion’s ability to design and deliver a complete, site-specific solution for mining wastewater treatment, including: 


  • A high-performance SDAF system that delivers strong solids separation, helping maintain compliance 
  • Reduced operator involvement 
  • A containerized layout that offers protection and ease of maintenance 
  • Control and monitoring systems aligned with the client’s preferred standards 
  • A practical, fit-for-purpose solution 


It reflects Centurion’s commitment to delivering practical outcomes, doing what we say and supporting clients with technically sound, real-world solutions across the mining sector. 


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