The results of thermal regeneration of activated charcoal at 100300C at various initial concentra- tions of alcohol are presented in Fig. 6. For c0 = 1500 mg l1, the alcohol concentration in the regen- erate reached 53 g l1, and for c0 = 800 mg l1, 25 g l1. The highest content of alcohol in the regen- erate is reached at the beginning of charcoal calcina- tion and at the process completion. This can be ex- plained by the fact that, at the beginning of regenera- tion, water and alcohol molecules weakly bonded by sorption forces vaporize at approximately 100C. By process completion at 300C, molecules tightly bonded by adsorption interactions are released.