Removal of Lead from Polluted Water Using Ricinus communis Powder as Bioadsorbent

Abstract

This research paper presents the performance of Ricinus communis as a bio-adsorbent for the removal of lead from water. Among various pollutants, lead is the major pollutant in water. Conventionally, removal of lead is carried out with chemical treatments. In the present research work, aim is to remove lead by using naturally available ecofriendly, economical, nontoxic bio-adsorbent. After literature review, we have selected Ricinus communis for the removal of lead. Experiments were carried out with variation in contact time, variation in dosage and variation in concentration of bio-adsorbent. Research work was carried out by using atomic absorption spectroscopy (AAS-7000). For 2 ppm initial concentration of lead, optimum results were obtained with 210 min contact time; dose of 50 mg/l gives maximum removal efficiency of 98.51%. Similar results were obtained for 4, 6, 8 and 10 ppm initial concentration of lead with removal efficiency 81.78, 86.56, 86.45 and 93.10% for 210 min contact time.

Keywords: Bio-adsorbent, Ricinus communis, dosage, contact time, atomic adsorption spectrophotometer

Cite this Article

Srinivasan R, Sadgir PA. Removal of Lead from Polluted Water using Ricinus communis Powder as Bioadsorbent. Research & Reviews: A Journal of Life Sciences. 2018; 8(2): 46–54p.