In addition to the loss of Au to the Au-IEM, other drawbacks/ limitations of the investigated electrowinning process, include the high cell voltage employed and the long electrowinning time. The high 12.9 V cell voltage employed in the present work is significantly higher than the 2.1 -5 V cell voltage applied in many industrial Au electrowinning processes (however it must be noted that these industrial electrowinning processes are rarely focused on Au recovery from leachates with dilute Au concentrations as in the present work). The long 6 hr electrowinning time required to achieve a maximum 95.50 % Au recovery yield in the present work is triple the amount of time that was required by Meng et al. who used a similar electrowinning process to concentrate and recover Au from an iodide leachate with a maximum yield of 96% after 2 hrs .The investigated membrane-based electrowinning process could be improved by overcoming the aforementioned drawbacks through process and configuration optimization. Process and configuration optimization could be achieved by conducting additional experiments investigating how Au recovery yield is affected by changes in operating conditions (e.g., cell voltage, temperature, etc.) or electrowinning cell configuration (e.g., electrode spacing, membrane contact surface area, etc.). Findings from these additional experiments could be used to design a more improved process which is able to concentrate and recover Au with a greater yield (>95.50 %), using a lower cell voltage (< 12.9 V), and in a shorter time (< 4 hrs).