Shoalhaven WWTP Upgrade Mechanical

Overview

UGL engaged Pructon to undertake the mechanical installation of all equipment associated with the $110 million Wastewater Treatment Plant at Nowra (greenfields) and Bomaderry (brownfields) in NSW. This project involved the comprehensive installation of essential mechanical equipment, including pipework, valves, and pumps. With a workforce of over forty personnel, Pructon effectively managed and delivered all mechanical installations, progressing through to the project's commissioning phase.

Scope of Work

• Offsite Fabrication: Fabrication of piping and structural components conducted offsite to enhance installation efficiency.
• Piping and Structural Steel Installation: Installation of piping and structural steel throughout the facility.
• Inlet Works: Installation of band and bar screens, penstocks, piping, valves, pumps, tanks, flow meters, and grit system screens and handling.
• Bioreactors: Installation of RAS and WAS pumps, pipework, valves and fittings, mixers, diffusers, aeration pipework, blower pipework, and instruments, along with aeration grids.
• Equalisation Tanks: Installation of all pipework, valves, and pumps within the equalisation tanks.
• Tertiary Filters: Installation of all pipework, valves, and pumps, including backwash troughs, stop boards, air scour blowers, and weirs.
• UV Disinfection and REMS + SSW: Installation of valves, instruments, pipework, pumps, UV banks, REMS pumps, mixers, pressure tanks, and hose reels.
• Chemical Dosing System: Installation of tanks, pipework, valves, pumps, flow meters, and instruments for the chlorine dosing system.
• Sludge Lagoons and DEWAT: Installation of piping, valves, pumps, mixers, flow meters, and stop boards.
• HDPE Piping Installation: Installation of high-density polyethylene piping throughout the facility.
• Hydrotesting: Conducted hydrotesting of all underground and above-ground piping to ensure system integrity.
• Commissioning: Completion of the commissioning process for all systems and equipment.

Outcomes and Benefits

• Comprehensive Mechanical Integration: The upgrade results in a fully integrated mechanical system that enhances operational efficiency.
• Increased Capacity and Reliability: The new installations improve the capacity and reliability of the wastewater treatment process.
• Successful Project Delivery: Efficient management and execution led to the successful delivery and commissioning of the project within budget and timeline constraints.