The adsorption of Pb(II),Cd(II),Zn(II) and Ni(II) on peels of banana has been studied in batch process using atomic adsorption spectroscopy for metal estimation. Concerned parameters like adsorbent dose, contact time, PH, and temperature were investigated. Langmuir and Freundlich isotherms were employed to describe adsorption equilibrium. The maximum adsorption was at 10-15 mg/L, when added different dosage of banana peel, and increase of PH value from 5-8 removal of heavy metal ion increase. When temperature was set between 27-600C amount of adsorbed metal was 150-200 mg/g. Adsorption of different metal ion vary between a contact time period of 80-120 minute. Study concluded that banana peels, a waste material, have good potential as an adsorbent for xenobiotic and non-xenobiotic heavy metal ion.
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