THE ADSORPTION OF COPPER(II) BY Z-RAMIGERA IMMOBILIZED ON CA-ALGINATEIN PACKED-BED COLUMNS - A DYNAMIC APPROACH BY STIMULUS-RESPONSE TECHNIQUE AND EVALUATION OF ADSORPTION DATA BY MOMENT ANALYSIS

In this study, Cu-II adsorption by Z. ramigera immobilized on Ca-algin ate was investigated in a packed bed column test circuit using a stimu lus-response technique. The mathematical model was described and solve d using ''parameter estimation by cybernetic moment technique'', and t he adsorption rate constant of Cu-II ions on Z. ramigera immobilized o n Ca-alginate was calculated. The Peclet numbers, which reflect the co lumn flow characteristics in the cases of no diffusion and/or no adsor ption, were calculated. The diffusional effects inside the pores of bi omass immobilized on Ca-alginate matrices were investigated. The momen t technique was used far evaluation of stimulus-response data of heavy metal-biosorbent interactions, to determine the process parameters.