Abstract
Desalinating sea ice for freshwater is a new way to solve the water shortage. In order to improve the removal rate and removal speed of TDS and salt in sea ice. In this study, two new ice melting methods, ultrasonic ice melting (UIM) and oscillational ice melting (OIM), were proposed and compared with natural ice melting (NIM). The results showed that at the beginning of three melting pathways, TDS and salt were intensively removed from the sea ice. Ultrasound and oscillation promoted the preferential removal of TDS and salt from sea ice and improved their removal rate. The promotional effect of oscillation was greater than that of ultrasound. The TDS content of the remaining sea ice can meet drinkable water standard when the melt ice ratio of OIM reaches 50%. Ultrasound and oscillation can also facilitate the melting speed and removal speed of TDS and salt from sea ice. The removal rate and removal speed of TDS and salt in sea ice are improved. This study provides a new method for sea ice desalination.
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