Tedagua implements a modular desalination system to double the capacity of the Adeje-Arona SWRO plant in Tenerife

• The modular system was successfully integrated into the existing operating conditions, ensuring uninterrupted service while doubling production capacity to 5,500 m³/day, with an optimized energy efficiency of 2.18 kWh/m³.
• Tedagua’s in-house engineering enabled the development of a fully customized turnkey solution, combining fast execution with a modular design tailored to the client’s specific requirements.

In response to a water emergency in the municipality of Arona, the Tenerife Island Water Council entrusted Tedagua with the expansion of the Adeje-Arona seawater desalination plant (SWRO). Thanks to its ability to respond swiftly to client needs and its highly specialized in-house engineering team, the company successfully doubled the plant’s production capacity to 5,500 m³/day, achieving an energy efficiency of 2.18 kWh/m³.

The project was carried out using Tedagua’s modular desalination systems, which the company has been developing in containerized and modular formats. This involved upgrading and adapting a containerized desalination plant—originally designed for a capacity of 2,500 m³/day—to integrate it into the existing SWRO system. The result was a doubling of production capacity and optimized use of existing resources, enabling faster execution to address the region’s water emergency in record time.

The modernization included the design and fabrication of a new high-pressure rack, incorporating a state-of-the-art energy recovery system. This solution enabled the plant to reach an energy efficiency of 2.18 kWh/m³, aligning with the highest industry standards in sustainability and operational performance.

A key aspect of the project was the reuse of existing infrastructure, such as the high-pressure pump, which was adapted to handle the new flow rate. This technical decision helped reduce costs, minimize intervention in the current system, and ensure uninterrupted service during construction.

The upgrade also covered auxiliary systems and piping, including cartridge filters, high- and low-pressure pipelines, instrumentation, control systems (PLC), and electrical installations. All components were developed using Tedagua’s proprietary technology, ensuring seamless and efficient integration with the existing system.

Finally, the modular system was implemented with interconnection capabilities to allow flow distribution between two independent racks, unify product water and brine streams, and maintain full plant operability throughout the process.

This project complements the pioneering water reuse system recently installed by Tedagua in Tenerife, where three compact plants use reverse osmosis to regenerate treated wastewater. These milestones reinforce Tedagua’s leadership in the water sector, showcasing its ability to deliver efficient, modular, and client-focused solutions to ensure water security in emergencies, natural disasters, humanitarian crises, or high water stress scenarios.