100,000
Inhabitants supplied
CLEAN WATER AND SANITATION
Ensure access to water and sanitation for all
Over 2,000 million people in the world live without access to a basic drinking water service, and 3,6 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.
CLIMATE ACTION
Take urgent action to combat climate change and its impacts
The generation and use of energy accounts for 35 % 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.
The Helena Water consortium, comprising ACCIONA, TRILITY, Brookfields Multiplex and RoyalBank of Scotland, won the tender to design, build and operate the Mundaring drinking water treatment plant in the Perth area (Western Australia) for a 35 year period.
This is a PPP (Public Private Partnership) project in the state of Western Australia. Its initial capacity will be 160,000 m3 per day, with a maximum capacity of around 240,000 m3 per day.
The plant supplies the Goldfields and Agricultural Water System (G&AWS) network, including Kalgoorlie, in the State of Western Australia. Australia's G&AWS is the drinking water supply network serving more than 100,000 people. It has more than 530 km of pipelines originally built in 1919.
The plant takes raw water from the Mundaring reservoir and then treats it to achieve the correct pH level.
GENERAL INFORMATION
- Entity: Water Corporation
- Location: Mundaring, Western Australia
- Population Served: 100,000 inhabitants
- Flow: 160,000 m3/day
KEY POINTS
- 3 power supplies
- Raw water pumping
- Chemical treatment and flocculation
- Flotation - filtration: DAFF
- Activated carbon filtration (BAC)
- Dissolved Organic Carbon Removal (DOC)
- Ultraviolet and chloramines disinfection
- Recarbonation
- Sludge treatment
- Product water pumping
- 24/7 security of supply
- Australian Drinking Water Guidelines (ADWG) compliance
- Low corrosive product water for distribution pipework
- Disinfection control
Key figures
100,000
inhabitants served
160,000
m3 per day
35
years of D&C and O&M contract
Management of environmental impact
Control of invasive species
Oceania's fauna is unique in the world and is severely affected by invasive species.
SPREAD OF THE OOMYCETE PHYTOPHTHORA CINNAMOMI FUNGUS
One of the issues that has been controlled is the spread of the oomycete Phytophthora cinnamomi fungus, which has seriously affected forests in the project area and has had a very negative impact on the natural vegetation. This fungus is included in the list of the 100 most damaging invasive exotic species in the world by the International Union for Conservation of Nature (IUCN).
EXPANSION OF THE HYLOTRUPES BAJULUS BEETLE
También se ha elaborado un protocolo completo sobre la llegada y uso de maderas de pinos ya que en la zona se ha detectado el escarabajo Hylotrupes bajulus, plaga que afecta a maderas de pinos y de estructuras y edificios, y que fue encontrado por primera vez en 2004 en el oeste de Australia y desde entonces no ha dejado de extenderse por el condado de Perth.
Para evitar su propagación por la zona de la obra se elaboraron estudios sobre su presencia, con cartografía detallada, y sobre las medidas de control necesarias para evitar su llegada por las actividades de la obra.
A full protocol on the arrival and use of pine timber has also been drawn up, as the Hylotrupes bajulus beetle is a pest that affects pine timber and buildings. It was found at first time in 2004 in Western Australia, and has been spreading throughout Perth County ever since.
In order to prevent its spread in the construction area, research and analyse has been made with detailed mapping of its presence and the control measures necessary to prevent its presence.