CONCENTRATION AND RECOVERY OF SODIUM SULFATE BY ELECTRODIALYSIS

The experimental study of concentration and recovery of sodium sulfate(Na 2SO 4) from its solution was done with electrodialysis process. The results indicated that Na 2SO 4 can be removed and concentrated very well by this method. The maximum concentration of Na 2SO 4 can reach as high as 14%. It costs about 450-1150kWh for the recovery of 1t Na 2SO 4. Therefore, we can see that electrodialysis is an idea and convenient way of concentration and recovery of Na 2SO 4.