JOURNAL OF FACULTY OF ENGINEERING & TECHNOLOGY, Vol 22, No 2 (2015)

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BIO-SORPTION OF NICKEL ON MODIFIED PHOENIX DACTYLIFERA L. SEEDS

Zohaib Atiq Khan, Aneela Anwar, Khurram Shahzad, Sadiq Hussain, Muhammad Tariq

Abstract


This contemporary study reveals the potential of modified Phoenix Dactylifera L. seeds as a biosorbent to adsorb Ni (II) ions present in simulated wastewater. The effect of initial pH and contact time on the uptake of Ni (II) ions were studied. Increase in pH from 3 to 5 increased the removal efficiency from 7.68 to 24.8 %. Pseudo 2ndorder(PSO)model was found most suitable in kinetic studies. Equilibrium was reached within first 20 minutes. Chemisorption was proved to be the rate limiting step(RLS) in biosorption of Ni (II) ions on modified Phoenix Dactylifera L. seeds.


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Faculty of Engineering & Technology

University of the Punjab

Lahore-54590-Pakistan