June 12, 2026
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ZITHER, a company specializing in the technological transformation of the water cycle for industry, is participating in a strategic project in the Dominican Republic with the development of an integrated system for the production of ultrapure water for the San Pedro Bioenergy (SPBE) plant, located in San Pedro de Macorís.
The installation is part of the expansion of the country's first biomass-fueled cogeneration plant in the interconnected electrical system, considered a pioneering infrastructure both in the Dominican Republic and throughout the Caribbean.
The project, designed and developed by SITRA in Spain, will allow the power plant's electricity generation capacity to be reinforced by an advanced system capable of treating up to 3.600 cubic meters of water per day.
The infrastructure was developed in Europe and designed and assembled in Spain using a modular configuration compatible with shipping containers. The final assembly and interconnection phase is currently underway at the plant under the technical supervision of SITRA.
This international project consolidates the presence of Spanish engineering in water treatment solutions for demanding industrial sectors and reinforces SITRA's position in the field of ultrapure water technologies applied to energy generation.
Javier Donato, director of SITRA, emphasizes that “this project represents another step forward in the company’s technological development.” He also underscores that the firm’s experience in ultrapure water solutions “has strengthened its ability to offer efficient and scalable systems, even beyond our borders.”
For San Pedro Bioenergy, the company's general management considers that the new facility represents "a strategic advance" by guaranteeing a continuous supply of ultrapure water for critical electricity generation processes.
In energy facilities like SPBE, ultrapure water is an essential element to guarantee operational reliability and avoid incidents in generation systems.
Feeding high-pressure boilers requires water free of salts, silica, and impurities, as these elements can cause scaling, corrosion, loss of efficiency, and even unscheduled plant shutdowns.
Therefore, cogeneration plants demand advanced treatment technologies capable of ensuring continuous operation and high water quality standards.
In this context, SITRA contributes its experience in the design and integration of treatment systems adapted to highly complex industrial and energy environments, with a presence in leading international projects.
The facility incorporates a multi-stage treatment process that begins with the collection of well water and its storage in a 2.000 cubic meter tank.
The water then passes through a filtration system to remove suspended solids. Part of the treated flow is used internally at the plant, and the rest goes to a double reverse osmosis circuit.
After this phase, the water is stored for different industrial applications and part of the flow undergoes a second stage of purification to reach the highest levels of quality.
The final stage incorporates an electrodeionization (EDI) system, a technology that combines electric current and selective membranes to remove dissolved salts and ions. Thanks to this process, the facility can produce up to 25 cubic meters per hour of ultrapure water, enough to fill an Olympic-sized swimming pool in just over a day.
The system is designed to operate automatically 24 hours a day, guaranteeing a stable and continuous supply for critical energy generation processes.
SITRA, part of the Nealis business group, develops solutions and services for the efficient and sustainable management of water in industry, the generation of renewable gases and the production of biofertilizers.
The company executes EPC projects for biomethane plants and industrial water management systems, in addition to maintaining a constant commitment to innovation and applied research to promote solutions with greater positive environmental impact and technological competitiveness.
