Removal of Mn(II) from aqueous solution: Static and dynamic studies

The removal of Mn(II) from aqueous solution by using hematite, an inexpensi ve adsorbent, has been investigated. Both static and dynamic studies of the kinetics of the adsorption process have been reported. The batch and colum n studies reveal that hematite is an efficient adsorbent for removal of Mn( II) from aqueous solution. From the batch studies it is seen that the equil ibrium data of the adsorption of Mn(II) on hematite follows Langmuir isothe rms and the velocity of mass transfer of Mn(II) on hematite is large enough to ensure its efficient removal from aqueous solution. The column studies reveal that the adsorption of Mn(II) on hematite follows the bed depth serv ice time (BDST) model and the adsorption depends on the now rate of the inf luent as well as on the depth of the homogeneous column of the adsorbent.