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Design and costruction
CLEAN WATER AND SANITATION
Ensure access to water and sanitation for all
Over 844 million people in the world live without access to a basic drinking water service, and 2.3 billionhave no access to a basic sanitation service, resulting in avoidable deaths, chronic disease, fewer hours of education and low productivity.
ACCIONA has positioned itself as a key player in the water treatment sector. Its innovative management seeks to resolve the challenges with respect to the shortage of water resources.
Take urgent action to combat climate change and its impacts
The generation and use of energy accounts for 74 % of total greenhouse gas emissions in the world. This activity is the largest contributor to global warming. Investment in renewable energy, energy efficiency and other low-carbon technologies will continue to be essential to meet the emerging needs of humanity and to minimize their negative impact on the environment.
ACCIONA considers the fight against climate change and its effects to be a strategic priority. The company works to mitigate greenhouse gas emissions in order to contribute to the progress of society and respond to the main challenges of sustainable development in the areas of infrastructure, water and energy, leading the transition to a low-carbon economy.
Unitywater’s Kawana Sewage Treatment Plant is located in Warana, Queensland serving multiple populations in the region such as Minyama, and Parrearra. The sewage plant was commissioned in 1981 and has had upgrades in 1991, 1997, 2005, and 2013.
The treatment capacity of the existing plant is equivalent to 90,000 of the population, which needs to be initially increased to service a population equivalent to 150,000 persons, the result of anticipated Sunshine Coast population growth and the consolidation of existing smaller wastewater treatment facilities.
ACCIONA, as part of a submission with Monadelphous to Unitywater, undertook the process design and process equipment supply for the Kawana Sewage Treatment Plant upgrade.
The project, which is the first large scale MBBR (Moving Bed BioRector) municipal plant in Australia, design to treated a population equivalent of 200,000 became operation during 2020.
The plant is designed to accommodate imported municipal wastewater sludge, collect methane gas from the anaerobic digester, clean it and uses it to generate electricity, which reduces the imported power consumption of the plant.
- Location: Warana, Sunshine Coast, Queensland
- Our role: To provide process design inputs / upgrades through Moving Bed Biofilm Reactor (MMBR) in order to effectively and efficiently enhance production and utilisation of waste water sustainably.
- Infrastructure: Unitywater’s Kawana Sewage Treatment Plant
- Project Value: This project is valued at AU$56 million
- Estimated completion date: Start of construction April 2017, with an estimated start of operations early 2020.
- Maintenance Period (by Monadelphous): 12 month maintenance starting early 2020.
ACCIONA will be responsible for aspects of process design, equipment supply and commissioning advice of the Kawana Sewage Treatment Plant upgrade.
- Current treatment capacity of 90,000 PE (population equivalent)
- Increase treatment capacity to 200,000 PE (150,000 PE specified)
- 24 months to design and construct
- Estimated in-service date is early 2020
- The treatment process of Moving Bed Biofilm Reactor (MBBR) will be introduced which is designed in order for micro-organisms to grow which optimise capacity in quantity and quality of the water and is highly cost efficient.
- Due to the innovative nature of the MBBR process, the proposal submitted increased the treatment capacity from the specified 150,000 PE to 200,000 PE, without any significant CAPEX cost increase.
- This project will enhance the utilisation of by-products from wastewater through sustainably promoting co-digestion and generation of methane gas in order to generate electricity to offset the plants power requirements and thus reducing its carbon footprint.