Project objectives

The objectives of SOL-BRINE are:

  • to promote the dissemination of innovative and environmental promising brine (reject concentrate stream from seawater desalination plants) treatment technology, aiming at the total elimination of brine and resulting in the increase of competitiveness of seawater and brackish water desalination technology
  • to design, develop, test, demonstrate, optimize and evaluate an innovative pilot scale energy autonomous brine treatment system for water recovery and production of a dry salt with potential market value
  • to introduce an innovative brine treatment system that is in line with the Zero Liquid Discharge concept and the objectives of Water Framework Directive (2000/60/EC) by significantly contributing to the protection of inland surface waters, transitional waters, coastal waters and groundwater
  • to introduce high level of technical innovation by promoting the identification, demonstration and dissemination of innovative technologies and practices related to the concept of advanced brine treatment powered by renewable energy sources
  • to demonstrate the feasibility of combined chemical processes, particularly with respect to energy efficiency through the use of abundant solar energy. The development of the prototype brine treatment system will combine the application of chemical treatment processes (such as evaporation, crystallization, drying and vapour compression) and renewable energy systems for covering its energy demands (photovoltaic system, simplified and integrated solar collectors)
  • to lead to the production of two “final useful products” by the complete separation of two phases; a solid and a liquid. The produced streams can be utilized in alternative applications. The produced dry salt (solid phase) will be easily handled and commercially utilized. The produced liquid (condensate vapour) meeting the drinking water standards may be further used as potable water and for irrigation or other purposes
  • to investigate the alternative uses of the “final products” produced after the full operation of the brine treatment system, as well as existing and/or emerging potential markets with respect to the economic feasibility and environmental performance
  • to provide insight on how the innovative brine treatment system can be implemented in full-scale and simultaneously to reinforce its implementation in Greece and in other European countries that face severe water shortage problems
  • to apply seawater or brackish water desalinisation processes in areas characterized by abundance of solar irradiation resources. These areas can use the produced clean water (liquid stream) for potable water and for irrigation purposes covering part of their water demands. SOL-BRINE will lead to concrete and practical results providing the ability to implement the brine treatment system to a larger extent
  • to identify the potential barriers inhibiting the full-scale implementation of the brine treatment system and to identify design and operating modifications to overcome such barriers so that the system can be applied in fullscale
  • to provide valuable suggestions for the system’s application at full-scale and thus increase its competitiveness compared to conventional brine treatment and minimization technologies. Full-scale implementation of the innovative energy autonomous brine treatment system will significantly result in: i) the reduction of CO2 emissions through the use renewable energy sources (solar energy) for the total covering of the system’s energy demands ii) the reduction of fuel quantities consumed through the reduction of the transportation of water (since the regions will cover part of their water demands using the clean water produced from brine treatment system), iii) the reduction of the need for future development of additional seawater desalination plants, thus reducing indirectly the CO2 emissions. Hence, the implementation of SOL-BRINE (specifically after the system’s full-scale transferability) will mitigate climate changes
  • to evaluate the environmental benefits, the social benefits and the economic feasibility of this prototype brine treatment system through the performance of a Life- Cycle Analysis of the system
  • to provide information to national, peripheral, regional and local authorities and interested parties that will assist in introducing a successful, environmental friendly (exclusive use of renewable energy sources), cost-effective brine treatment technology for water recovery and production of a dry salt in their areas (where desalination, distillation processes are applied)
  • to raise awareness of relevant stakeholders and target groups with respect to brine management and treatment options for zero liquid discharge. The proposed project will demonstrate the operation of the prototype solar-driven brine treatment system developed for brine concentration – elimination and the simultaneous production of dried salt and clean water (vapour condensate) to relevant authorities and target groups
  • to disseminate the project progress and findings through an interactive website, meetings, conferences, leaflets, posters, notice boards, organized demonstration activities (site visits), meetings, trips, production of DVD film and training sessions.