Related Experiment Video
Updated: Feb 14, 2026

Deposition of Porous Sorbents on Fabric Supports
Published on: June 12, 2018
Fixed bed column study for water defluoridation using neem oil-phenolic resin treated plant bio-sorbent
Suvendu Manna1, Prosenjit Saha2, Debasis Roy3
1Materials Science Centre, Indian Institute of Technology, Kharagpur, WB 721302, India; Department of Chemical Engineering, Jadavpur University, Kolkata, 700032, India.
Abstract:
Fluoride has both detrimental and beneficial effects on living beings depending on the concentration and consumption periods. The study presented in this article investigated the feasibility of using neem oil phenolic resin treated lignocellulosic bio-sorbents for fluoride removal from water through fixed bed column study. Results indicated that treated bio-sorbents could remove fluoride both from synthetic and groundwater with variable bed depth, flow rate, fluoride concentration and column diameter. Data obtained from this study indicated that columns with the thickest bed, lowest flow rate, and fluoride concentration showed best column performance. Bio-sorbents used in this study are regenerable and reusable for more than five cycles. The initial materials cost needed to remove one gram of fluoride also found to be lower than the available alternatives. This makes the process more promising candidate to be used for fluoride removal. In addition, the process is also technically advantageous over the available alternatives.
More Related Videos
Related Concept Videos
Capillary Beds
Capillaries connect arterioles, small branches of arteries, to venules,...
Water and Mineral Acquisition
Oxidation of Phenols to Quinones
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
The Water Cycle
Tonicity in Plants
Meristems and Plant Growth

