Scope

The scope of work includes:

• construction of new inlet works to address ongoing issues of capture and surcharge negatively impacting the performance of the screens and downstream processes
• construction of four new MBR secondary treatment process to cater for increased effluent load and address the need to reduce effluent Total Nitrogen (TN) load and Total Phosphorus (TP) load achieved by four new bioreactors and membrane filtration
• upgrade of tertiary treatment process to cater for increased influent flow and address need to reduce effluent and TP load
• upgrade of biosolids digestion, thickening, dewatering, and outloading system to cater for increased biosolids production
• upgrade of site wide utilities and auxiliary services
• second HV feed, electrical, PLC, and SCADA upgrade works
• temporary access roads for construction and drainage as required with upgrades
• decommissioning works plus commissioning and handover to Sydney Water Operations team.

Outcomes

BMD Constructions, as part of a joint venture with Downer, was engaged to complete the critical upgrade to increase capacity in line with population growth in the South West Sydney catchment area. The project involves end to end delivery of all works from design to construction, process proving, commissioning, operation and maintenance. The upgrade is set to double the plant’s capacity, ensuring that population growth in the catchment is environmentally sustainable – both in volume and by producing high quality recycled water for agricultural and recreation use in the local area.

Project highlights

Key project highlights include:

• decommissioning of sludge lagoon completed with no plant interruptions
• ASP1 HV Design IFC approved by Endeavour Energy
• procurement of major supply equipment, providing vendor input into BIM 360 and design
• collaboration with Sydney Water on project similar to the Richmond System Wastewater Upgrade (RSWU)
• community newsletter reached 3470 households (Q4 2021)