The paper presents the results of scientific research related to the study of adsorption processes of bacteria within the species Bacillus subtilis and Pseudomonas fluorescens on activated carbon obtained from apricot husks in a fluidized layer. The activated carbons used have a specific BET area of about 1500 m2/g and a total sorption volume of the pores equal to 1,05 cm3/g. The study of the kinetics of the adsorption processes of the bacteria within the above mentioned species showed that the value of the maximum adsorption of the bacteria is established within 2,5 hours. After 2,5 hours of mechanical stirring, the concentration of bacteria begins to increase exponentially. After 13,5 hours of contact, the concentration of bacteria increases so rapidly that the bacteria coagulate forming microfuges in solution. The obtained results allow us to conclude that the bacteria in the first 2,5 hours are adsorbed in the macropores of the activated carbon. After the saturation of the macropores, the activated carbon has the role of mechanical surface, which allows the rapid multiplication of bacteria. This fact is also confirmed by the research results, which are related to the study of the behavior of bacteria when stirring in aqueous solutions in the absence of activated carbon, especially the linear decrease in the concentration of bacteria depending on the contact time.