Ecology, Environment and Conservation Paper

Vol 26, April Suppl. Issue, 2020; Page No.(213-216)

REMOVAL OF LEAD (II) FROM AQUEOUS SOLUTION USING COMPOSITE ADSORBENT OF CASSAVA PEEL WASTE/MAHOGANY SAWDUST/BENTONITE

Eko Prasetyo Kuncoro, Ganden Supriyanto, Thin Soedarti, Nilaturrohmah andGabriel Putra Utama

Abstract

The objective of the research was to evaluate the ability of composite adsorbent of cassava peel waste/mahogany sawdust/bentonite to remove lead (II) from aqueous solution. The study was performed with dried and powdered composite adsorbent in batch mode. Important parameters of adsorption were evaluated. The experiments were carried out at varied pH (2 to 7), varied lead concentration (5 to 200 mg/L) and varied contact time (5 to 150 minutes). The characterization of adsorbent was performed using FTIR analysis. The results showed that the highest lead (II) removal was obtained at pH near neutral. Increasing lead concentration resulted in diminution of lead removal while increasing contact time resulted in increase of lead removal. FTIR analysis showed functional groups of cassava peel waste, mahogany sawdust and bentonite interacted with lead. The composite adsorbent prepared has good potential for waste water containing lead.

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