Fluoride removal performance of phosphoric acid treated lime: Breakthrough analysis and point-of-use system performance

Cyprian Murutu, Maurice S. Onyango, Aoyi Ochieng, Fred Otieno

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Fluoride in drinking water above permissible levels is responsible for dental and skeletal fluorosis. In this study, removal of fluoride ions from water using phosphoric acid treated lime was investigated in continuous and point-of-use system operations. In the continuous column operations, fluoride removal performance was investigated as a function of the fluoride concentration, flow rate and amount of adsorbent mass. Early saturation and lower fluoride removal were observed at higher flow rate and initial concentration, and at lower mass. Two domestic defluoridation point-of-use systems operated intermittently to process 20 ..day.1 of water were used. High fluoride uptake capacity (FUC) from groundwater was observed depicting the suitability of the new media in defluoridation. However, further research is required to optimise the point-ofuse systems performances.
Original languageEnglish
Pages (from-to)279-286
Number of pages8
JournalWater S.A.
Volume38
Issue number2
DOIs
Publication statusPublished - 2012

Fingerprint

Fluorides
fluoride
lime
acid
Dental Fluorosis
Water
Groundwater
Drinking Water
analysis
removal
phosphoric acid
drinking water
saturation
Ions
groundwater
ion
Research
water

Cite this

Murutu, Cyprian ; Onyango, Maurice S. ; Ochieng, Aoyi ; Otieno, Fred. / Fluoride removal performance of phosphoric acid treated lime: Breakthrough analysis and point-of-use system performance. In: Water S.A. 2012 ; Vol. 38, No. 2. pp. 279-286.
@article{98b1840fdf4c448d8867dad6bd61ba9c,
title = "Fluoride removal performance of phosphoric acid treated lime: Breakthrough analysis and point-of-use system performance",
abstract = "Fluoride in drinking water above permissible levels is responsible for dental and skeletal fluorosis. In this study, removal of fluoride ions from water using phosphoric acid treated lime was investigated in continuous and point-of-use system operations. In the continuous column operations, fluoride removal performance was investigated as a function of the fluoride concentration, flow rate and amount of adsorbent mass. Early saturation and lower fluoride removal were observed at higher flow rate and initial concentration, and at lower mass. Two domestic defluoridation point-of-use systems operated intermittently to process 20 ..day.1 of water were used. High fluoride uptake capacity (FUC) from groundwater was observed depicting the suitability of the new media in defluoridation. However, further research is required to optimise the point-ofuse systems performances.",
author = "Cyprian Murutu and Onyango, {Maurice S.} and Aoyi Ochieng and Fred Otieno",
year = "2012",
doi = "10.4314/wsa.v38i2.14",
language = "English",
volume = "38",
pages = "279--286",
journal = "Water S.A.",
issn = "0378-4738",
publisher = "South African Water Research Commission",
number = "2",

}

Fluoride removal performance of phosphoric acid treated lime: Breakthrough analysis and point-of-use system performance. / Murutu, Cyprian; Onyango, Maurice S.; Ochieng, Aoyi; Otieno, Fred.

In: Water S.A., Vol. 38, No. 2, 2012, p. 279-286.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Fluoride removal performance of phosphoric acid treated lime: Breakthrough analysis and point-of-use system performance

AU - Murutu, Cyprian

AU - Onyango, Maurice S.

AU - Ochieng, Aoyi

AU - Otieno, Fred

PY - 2012

Y1 - 2012

N2 - Fluoride in drinking water above permissible levels is responsible for dental and skeletal fluorosis. In this study, removal of fluoride ions from water using phosphoric acid treated lime was investigated in continuous and point-of-use system operations. In the continuous column operations, fluoride removal performance was investigated as a function of the fluoride concentration, flow rate and amount of adsorbent mass. Early saturation and lower fluoride removal were observed at higher flow rate and initial concentration, and at lower mass. Two domestic defluoridation point-of-use systems operated intermittently to process 20 ..day.1 of water were used. High fluoride uptake capacity (FUC) from groundwater was observed depicting the suitability of the new media in defluoridation. However, further research is required to optimise the point-ofuse systems performances.

AB - Fluoride in drinking water above permissible levels is responsible for dental and skeletal fluorosis. In this study, removal of fluoride ions from water using phosphoric acid treated lime was investigated in continuous and point-of-use system operations. In the continuous column operations, fluoride removal performance was investigated as a function of the fluoride concentration, flow rate and amount of adsorbent mass. Early saturation and lower fluoride removal were observed at higher flow rate and initial concentration, and at lower mass. Two domestic defluoridation point-of-use systems operated intermittently to process 20 ..day.1 of water were used. High fluoride uptake capacity (FUC) from groundwater was observed depicting the suitability of the new media in defluoridation. However, further research is required to optimise the point-ofuse systems performances.

U2 - 10.4314/wsa.v38i2.14

DO - 10.4314/wsa.v38i2.14

M3 - Article

VL - 38

SP - 279

EP - 286

JO - Water S.A.

JF - Water S.A.

SN - 0378-4738

IS - 2

ER -