Optimization of simplified freeze desalination with surface scraped freeze crystallizer for producing irrigation water without seeding

Freeze desalination (FD) is a promising desalination technology for overcoming the drawbacks of conventions desalination methods. However, the slow production rate and low productivity of FD have hindered its cost mercialization. This research presents the challenges confronting current FD processes and proposes a neN simplified FD, which employs self-nucleation using the surface scraped freeze crystallizer unit. With the site plified FD process, it was found that optimal conditions are 45 or 50% of the washing water percentage at a operational temperature of -12 degrees C, and 50% of the washing water percentage at an operational temperature c -16 degrees C for producing irrigation water (< 2000 mg/L in terms of total dissolved solids). Furthermore, we applie the cyclic system, which was the reuse of the mixture of brine and washing waste, on the FD process. The result showed that the use of 45% of the washing water percentage for the 1st cycle raw ice products and 50% for th 2nd cycle at an operational temperature of 12 degrees C enabled the achievement of > 40% in the final productivity Accordingly, this research introduced the feasibility of the FD process without the use of any additional seedin process.