Adsorption of Phosphate from Aqueous Solution Using Activated Red Mud.
Adsorption of phosphate (PO3-4) from aqueous solution on activated red mud (ARM) was studied as a function of time, pH, temperature, concentration of adsorbent and adsorbate in acetic acid-sodium acetate buffer medium. The adsorption of phosphate follows Langmuir as well as Freundlich adsorption isotherms. The process efficiency was found to be 80-90% at room temperature. This can be extended to the treatment of industrial effluents containing phosphates like that from phosphatic fertilizer plants. Copyright 1998 Academic Press.
Regional Research Laboratory, Council of Scientific & Industrial Research, Bhubaneswar, 751 013, India
J
Pradhan
J
Das
S
Das
RS
Thakur