Removal of lead metal ion using biowaste of Pithophora cleveana wittrock and Mimusops elengi

ABSTRACT

The present research explored the potential of a freshwater algae Pithophora cleveana Wittrock and Mimusops elengi leaves in the removal of lead in batch experiments. The operating parameters like contact time, pH of a solution, biosorbent dosage, particle size of biosorbent, initial concentration, and temperature were determined. A maximum uptake of 22.96 and 14.54 mg/g was reported for Pithophora cleveana Wittrock and Mimusops elengi with a maximum removal efficiency of 94.89% and 85.67%. Langmuir Isotherm model predicted a maximum correlation coefficient of 0.999 and 0.985 for Pithophora cleveana Wittrock and Mimusops eleng biosorbents. The kinetic study concluded that the pseudo-second-order kinetic model was found to best fit with a correlation coefficient always not less than 0.995. The thermodynamic study concluded that the biosorption mechanism was exothermic and spontaneous.

KEYWORDS:

• Biosorption
• lead
• Mimusops elengi
• modeling
• Pithophora Cleveana Wittrock

Conflicts of interest

The authors declare no conflicts of interest.

Additional information

Funding

This research did not receive any specific funding.

Notes on contributors

Kalyani Gaddam

Dr. Kalyani Gaddam is an Assistant Professor (Sr. Gr) in the Department of Chemical Engineering, GMRIT, Rajam. Her Research interest includes, Novel Adsorbent, Wastewater Treatment and Bioremediation. She has authored/co-authored 20 + articles in referred journals.

Mahendran Sivananaintha Perumal

Dr. Mahendran Sivananaintha Perumal, graduated in Geology and got Master’s degree in Geology from Madurai Kamaraj University. After that He Joined as TNJRF at the Department of Geology, University of Madras and Awarded Ph.D in Geology in the year 2000. During the research he has participated in the 104 Cruise of SagarKanya Exploration at Bay of Bengal by Department of Ocean Development, Government of India. Since 2003 he is working in the Department of Civil Engineering at PSNA College of Engineering and Technology, Dindigul. Has published more than 12 research articles in the field.

Gokulan Ravindiran

Dr. Gokulan Ravindiran, is an Assistant Professor in Department of Civil Engineering, GMRIT, Rajam. His research interest includes Biochar, Biofuels, Bioremediation and Wastewater Treatment. He has authored/co-authored 20 + articles in referred journals.