The removal efficiency of activated carbon Filtrasorb 400 (F-400) towards t
hree highly used reactive dyes in the textile industry was investigated. In
this work, the adsorption capacities for the anionic reactive dyes, namely
; Remazol Reactive Yellow, Remazol Reactive Black and Remazol Reactive Red
were determined. The adsorption capacity data showed a high removal ability
for the three reactive dyes and a distinguished ability for R. Yellow. The
high adsorption capacities for F-400 were attributed to the net positive s
urface charge during the adsorption process. Surface acidity, surface basic
ity, H+ and OH- adsorption capacities and pH(ZPC) for F-400 were estimated
and compared with other reported values. (C) 2000 Elsevier Science Ltd. All
rights reserved.