The effects of alcohols, column dimensions, gas velocity, physical properties of liquids, and gel particles on the gas holdup epsilon(G) and the volumetric liquid-phase mass transfer coefficient k(L)a in a gel-particle-suspended bubble column under liquid-solid batch operation were studied experimentally. It was shown that addition of alcohols to water generally increases epsilon(G). However, k(L)a values in aqueous solutions of alcohols became larger or smaller than those in water, according to the kind and concentration of the alcohol added to water, It was also shown that the presence of suspended gel-particles in the bubble column reduces values of epsilon(G) and k(L)a. Based on these observations, empirical equations for epsilon(G) in the transition regime in an ethanol solution, for epsilon(G) in the heterogeneous flow regime applicable to various alcohol solutions and for k(L)a in both flow regimes were proposed.