Biosorption of fluoride from aqueous phase onto algal Spirogyra IO1 and evaluation of adsorption kinetics

Mohan, S. Venkata; Ramanaiah, S.V.; Rajkumar, B.; Sarma, P.N.

doi:10.1016/j.biortech.2006.04.009

Cited by 105 publications

(27 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the spectra of fluoride loaded virgin TNFC and treated TNFC the strong peak around 1000 cm -1 indicates the C-F bond stretching. 35,36 The peaks present at 800-700 cm -1 indicate the presence of aromatic ortho disubstituted heterocyclic molecules, but these peaks are absent in the spectra of acid treated biosorbent (Fig 1. (c), (d)).…”

Section: Characterization Of Biosorbents Porosity Of Biosorbentmentioning

confidence: 99%

Defluoridation of Water Using Tamarind (Tamarindus Indica) Fruit Cover: Kinetics and Equilibrium Studies

Kumar

Krishnaiah

2012

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

In the present study defluoridation of water was conducted using Tamarind fruit cover (TNFC) as a natural adsorbent in virgin and acid treated forms. Defluoridation of water was studied under batch equilibrium and column flow experimental conditions. The adsorbents were characterized by FTIR, SEM, Pycnomatic ATC techniques. The effect of experimental variables such as initial concentration of fluoride, effect of pH, contact time, co-ions and amount of adsorbent dosage was evaluated. The study was also extended to real field water samples. The equilibrium data were used to study the kinetics of defluoridation process and also to predict the isotherms applicable to the adsorption process. The maximum monolayer adsorption capacity of virgin TNFC and treated TNFC sorbents as obtained from the Langmuir adsorption isotherm was found to be 4.14 mg/g and 6.11 mg/g of fluoride. The column flow adsorption data were utilized to obtain break through curves.

show abstract

Section: Characterization Of Biosorbents Porosity Of Biosorbentmentioning

confidence: 99%

Defluoridation of Water Using Tamarind (Tamarindus Indica) Fruit Cover: Kinetics and Equilibrium Studies

Kumar

Krishnaiah

2012

J. Chil. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…Though fluoride is an essential constituent, depending on its level of fluoride in drinking water, it can be either beneficial or detrimental to human health (Alagumuthu et al 2011). When the concentration of fluoride in drinking water is above 1.5 mg/L, it results in dental, skeletal, and non-skeletal fluorosis due to its strong attraction by positively charged calcium ion in teeth and bones (Venkata Mohan et al 2007;Shahid et al 2008). Ethiopia is one of the 23 countries in the world, where a significant number of its population suffers from the toxic effects of high levels of fluoride in drinking water.…”

Section: Introductionmentioning

confidence: 99%

Defluoridation of water by activated carbon prepared from banana (Musa paradisiaca) peel and coffee (Coffea arabica) husk

Tilahun

Hussen

Rao

2014

Int. J. Environ. Sci. Technol.

112

View full text Add to dashboard Cite

The defluoridation of ground water is regarded as one of the key areas of attention among the universal water community. The present investigation deals with fluoride removal from aqueous solution by thermally activated biosorbents prepared from banana (Musa paradisiaca) peel and coffee (Coffea arabica) husk. Fluoride ion selective electrode was used for the determination and monitoring of fluoride ion concentration. Batch experiments were conducted to establish the optimal conditions like pH, dose of the adsorbent, and contact time. The optimum pH was found to be 2 for both the adsorbents, and the optimum dose was found to be 24 g/ 250 mL at 13 h contact time for banana peel and 18 g/250 mL at 3 h contact time for coffee husk. The concentrations determined in real water samples of flour factory, poultry, and Lake Hawassa sites were 12.54, 11.02, and 6.72 mg/L, respectively. The prepared biosorbents were applied on these water samples under optimized conditions and found to be effective with removal efficiency ranging from 80 to 84 %. In terms of time and adsorbent dose required, coffee husk was observed to be much better than banana peel. The adsorption process obeyed Langmuir adsorption model. From the kinetic perspective, the fluoride adsorption followed the pseudo second-order reaction kinetics.

show abstract

“…The immobilized C. vulgaris was packed in the column, and the fluoride solution was pumped in up-flow direction through the bed using a peristaltic pump (Ravel pump, Model: RH-P120VS-2H) at constant inflow rate. The trials were carried out at varying flow rate (5, 7.5 and 10 ml/min), packed bed height (2, 3.2, 6 cm), and different initial fluoride solution (10,15,25, 55 mg/L). The effluent solution was collected from the top of the packed column at regular intervals, and the residual fluoride concentration was measured using fluoride ion selective electrode.…”

Section: Column Adsorption Experimentsmentioning

confidence: 99%

“…Biosorption is an emerging adsorption technique that utilizes inactive/dead biological materials by way of passive uptake of ions in cellular structure, followed by subsequent binding onto active sites. A variety of algae and fungi, including Spirogyra IO2 and Spirogyra IO1, Anabaena fertilissima, Chlorococcum humicola Pleurotus ostreatus 1804 and Pleurotus eryngii ATCC 90888 have been used for the biosorption of fluoride ions [14][15][16][17][18]. However, most of these studies were restricted to batch studies, and not to continuous studies.…”

Section: Introductionmentioning

confidence: 99%

Biosorption of Fluoride from Synthetic and Ground Water Using Chlorella vulgaris Immobilized in Calcium Alginate Beads in an Upflow Packed Bed Column

Hiremath¹,

Théodore²

2017

Period. Polytech. Chem. Eng.

View full text Add to dashboard Cite

show abstract

Biosorption of fluoride from aqueous phase onto algal Spirogyra IO1 and evaluation of adsorption kinetics

Cited by 105 publications

References 18 publications

Defluoridation of Water Using Tamarind (Tamarindus Indica) Fruit Cover: Kinetics and Equilibrium Studies

Defluoridation of Water Using Tamarind (Tamarindus Indica) Fruit Cover: Kinetics and Equilibrium Studies

Defluoridation of water by activated carbon prepared from banana (Musa paradisiaca) peel and coffee (Coffea arabica) husk

Biosorption of Fluoride from Synthetic and Ground Water Using Chlorella vulgaris Immobilized in Calcium Alginate Beads in an Upflow Packed Bed Column

Contact Info

Product

Resources

About