The Western Corridor Recycled Water Project is one of the world’s largest recycled water scheme and is the largest project of its kind in the southern hemisphere.
One of a number of drought relief initiatives, the Western Corridor Recycled Water Project involves the design and
construction of three advanced water treatment plants. The project also includes building a pipeline between six
wastewater treatment plants in Brisbane and Ipswich and three advanced water treatment plants for treatment before being transferred to end users.

The Western Corridor Recycled Water Project’s main objectives are:

• To ensure power supply through delivering a reliable water source to power stations
  
• To mitigate drought conditions by providing an alternative water source to the existing fresh water storages in the region
  
• To minimize environmental impacts by reusing almost all of Brisbane and Ipswich’s treated wastewater, which will reduce the nutrient input into local waterways and Moreton Bay
  
• To contribute to sustainable development in the region by providing a regular, viable source of water to meet future industrial and population growth, without depleting local fresh water reservoirs
  

There are five alliances undertaking design of the three advanced water treatment plants and the 200-km pipeline. The pipeline connects these plants to the power stations and the Wivenhoe Dam, which is the area’s principal fresh water storage.

Scope of Services
As a member of the Luggage Point Alliance, Hatch is undertaking design and delivery of the Luggage Point Advanced Water Treatment Plant (LPAWTP). It will provide up to 66 megalitres per day of purified recycled water to the Western Corridor Recycled Water pipeline.

The LPAWTP uses state of the art technologies to improve the water quality of secondary treated sewage for reuse as potable water and industrial cooling water. It includes flow equalization, pretreatment (coagulation and clarification for phosphate and turbidity removal), micro-filtration, reverse osmosis, advanced oxidation (hydrogen peroxide and UV dosing) and final stabilization of the water together with residue handling (thickening and de-watering).

Project Highlights

• South East Queensland (SEQ) is one of the fastest growing regions in Australia, with population and development expected to increase significantly in the next 20 years. Effective management of the region’s water resources is a crucial aspect of future planning
  
• Expectations for future growth along with prolonged drought conditions have highlighted the vulnerability of the SEQ region’s water resources. The WCRWP is one of a number of current initiatives by the state government and local councils in response to the worst drought on record and in recognition of the ongoing need to ensure a secure water supply for the future
  
• Water recycling and reuse can offer substantial benefits to the community. The WCRWP aims to reduce demand on the region’s fresh water supply, secure water supplies for industrial use in South East Queensland and minimize the environmental impact on waterways and Moreton Bay. The WCRWP will make use of almost all of the wastewater discharged into local waterways and Moreton Bay
  
• The project is proceeding with an extremely ambitious target of producing water within 21 months of design commencement. Following a further three-month performance testing period, treated water will be conveyed to the power stations and the Wivenhoe Dam