1Centre for Environment and Climate Change, School of Environmental Sciences, Jawaharlal Nehru Institute of Advanced Studies (JNIAS-JNTUA), Hyderabad, Telangana
2Centre for Environment and Climate Change, School of Environmental Sciences, Jawaharlal Nehru Institute of Advanced Studies, Hyderabad, Telangana
3Oil Technological & Pharmaceutical Research Institute (OTPRI), Jawaharlal Nehru Technological University Anantapur, Ananthapuram A.P
International Journal of Environmental Bioremediation & Biodegradation.
2016,
Vol. 4 No. 2, 55-67
DOI: 10.12691/ijebb-4-2-4
Copyright © 2016 Science and Education PublishingCite this paper: N. Gandhi, D. Sirisha, K.B. Chandra Sekhar. Adsorption of Fluoride (F
-) from Aqueous Solution by Using Pineapple (
Ananas comosus) Peel and Orange (
Citrus sinensis) Peel Powders.
International Journal of Environmental Bioremediation & Biodegradation. 2016; 4(2):55-67. doi: 10.12691/ijebb-4-2-4.
Correspondence to: D. Sirisha, Centre for Environment and Climate Change, School of Environmental Sciences, Jawaharlal Nehru Institute of Advanced Studies, Hyderabad, Telangana. Email:
sirishadavid@gmail.comAbstract
The ability of the peel powders of Ananas comosus and Citrus sinensis for removal of fluoride from water through adsorption has been investigated in the present study. All the experiments are carried out by batch adsorption mode. The effect of various parameters viz. contact time, pH effect (pH 3–9), adsorbent dose (0.2–1.2 g/L) and initial fluoride concentration (1–4 mg/L) has been investigated to determine the adsorption capacity of peel powders of Ananas comosus and Citrus sinensis. The efficacy of peel powders of Ananas comosus and Citrus sinensis to remove fluoride from water is found to be above 90% at pH 6 for Citrus sinensis peel powder and above 90% at pH 4 for Ananas comosus peel powder contact time for one hour, dose of 0.6 g/L, when 4 mg/L of fluoride is present in 100 ml of water.
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