Volume No. 7 Issue No.: 2A Page No.: 958-963 Oct. - Dec. 2012

 

APPLICATION OF Padina tetrastromatica FOR REMOVAL OF HEAVY METAL IONS FROM WASTEWATER

 

Waghmode Ahilya* and Sabale Anjali

Department of Botany, Shivaji University, Kolhapur, M.S. (INDIA)

 

Received on : September 10, 2012

 

ABSTRACT

 

Macro algae are now-a-days used as a biosorbent material for removing heavy metals from wastewater. Uptake capacity of brown algal species Padina tetrastromatica for heavy metals was evaluated in the present study. Dried biomass of this alga was utilized to assess the removal of Cu(II), Pb(II), Ni(II), Co(II), Cd(II), Cr(II) and Zn(II) ions from wastewater. The adsorption capacity for Pb (II) was 845.5 mg/g while for Cu it was 294 mg/g. The efficiency for Pb (II) removal was greater in P.tetrastromatica (83.25%) while for Cu (II) it was 71.92%. The percent removal was less than 50% in all other metals. Above results indicated that dried biomass of seaweed is suitable for removal of heavy metal ions from wastewater. FT-IR, SEM-EDX and XRD analyses were used to study metal-algal interaction and biosorption mechanism.

 

Keywords : Adsorption, FT-IR, Heavy metals, P. tetrastromatica, SEM-EDX, XRD

 

 

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