Article (Scientific journals)
Remediation of fluoride contaminated water using encapsulated active growing blue-green algae, Phormidium sp.
MITTAL, Yamini; Srivastava, Pratiksha; Kumar, Naresh et al.
2020In Environmental Technology and Innovation, 19, p. 100855
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Keywords :
Fluoride removal; Biosorbent; Active algae; Encapsulation; Immobilization
Abstract :
[en] Fluoride is a global water contaminant of geogenic nature impacting human health. Encapsulation of active blue-green algae, Phormidium sp. as biosorbent provides a unique type of biosorbent that continuously develops new active sites for biosorption and can be separated easily from treated water. The experiment was conducted in batch mode with varying parameters — initial pH (3.5–4.5 after an initial screening of wide range pH), initial fluoride concentration (2.0–10.0 mg/L), and different biomass amounts 3.0–6.0 g (biosorbent dose). The parameters mentioned above were considered and optimized using response surface methodology (RSM). Additionally, the biosorption study assures 60% removal from 3.0 mg/L of initial fluoride concentration. Furthermore, the process was found to follow the Freundlich isotherm model. The study follows first-order kinetics; further, the intra-particle diffusion and surface biosorption both contribute to the rate-determining step. In addition to that, scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) results also confirmed the contribution of algal biomass towards fluoride removal.
Disciplines :
Civil engineering
Author, co-author :
MITTAL, Yamini  ;  University of Luxembourg > Faculty of Science, Technology and Medicine (FSTM) > Department of Engineering (DoE)
Srivastava, Pratiksha
Kumar, Naresh
Yadav, Asheesh Kumar
External co-authors :
yes
Language :
English
Title :
Remediation of fluoride contaminated water using encapsulated active growing blue-green algae, Phormidium sp.
Publication date :
2020
Journal title :
Environmental Technology and Innovation
eISSN :
2352-1864
Publisher :
Elsevier, Amsterdam, Nl
Volume :
19
Pages :
100855
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 03 February 2025

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