Elmasa Tecnología del Agua has always been characterised by striving to find solutions to the new challenges faced daily when managing the full water cycle and it has led the implementation of water technology centred on desalination in the Canary Islands.
To be able to offer high levels of quality, Elmasa is aware of the need to develop alternative innovative technologies which allow productivity to be improved and costs to be lowered. To this end, the company has been collaborating with the Canary Islands’ main research centres and other businesses in the sector for many years.
The main R+D+I projects which Elmasa has participated in are:
In 1974, the company was a pioneer in implementing underwater emissaries for the evacuation of treated water from wastewater treatment plant and brine from seawater desalination plant.
In co-operation with the Consejo Insular de Aguas de Gran Canaria (Island Water Board), studies were carried out for aquifer recharge using treated water. Different pilot studies were also produced on the reuse of purified water in agriculture, public gardening and golf courses. For this, plots of land were used for experimentation and field studies.
The first brine concentrators were installed in the 90s, as the second phase of the Maspalomas II desalination plant.
Alongside the Instituto Tenológico de Canarias (ITC), the Centro de Experimentación de Obras Públicas (CEDEX), the Instituto Canario de Ciencias Marinas (ICCM) and the companies Canaragua and DHI, amongst others, Elmasa participated in the project ‘Technical feasibility study of venturi diffusers in desalination plant brine discharges to enhance the dilution process and reduce the environmental impact on marine ecosystems’.
Hydraulic experts undertook a study on the hydrodynamic parameters of the area known as Bahía Feliz, to gather the maximum possible information from the affected zone.
These results allowed for interpretation of the saline plume’s behaviour and for the design of the Venturi difusser, with the aim of reducing the environmental impact of discharge at sea and minimising the negative effects on existing marine ecosystems in the area. The tests carried out showed how brine dilution is total when the plume touches the sea bed, confirming the functionality and validity of the design.
After this study, Elmasa design and manufactured the Venturi Diffuser at the underwater outfall of Bahía Feliz for the brine discharge from Maspalomas I Desalination Plant.
If you wish to discover more about the Venturi project, click here
Similarly, pilot remineralisation plants with calcite beds are in operation, in collaboration with the Fundación Centro Canario del Agua, using ultrafiltration and reverse osmosis to study and analyse processes and materials in the different phases of production and treatment of water for supply.
In 2016, in collaboration with the Universidad de Las Palmas de Gran Canaria, a study on the processes of biofouling was carried out to reduce the undesirable microorganisms in desalination plants with open seawater intake. At the Maspalomas I SWRO Plant, the solutions drawn from the study’s results are currently being applied, with the aim of improving the process and reducing the amount of washing needed for different equipment
ELMASA Tecnología del Agua
Avenida de Tirajana 39. Edificio Mercurio, Torre II - 6º planta
35100 San Bartolomé de Tirajana, Las Palmas, España