Separation of fluoride from aqueous solution by electrodialysis: Effect of process parameters and other ionic species

Kabay, Nalan; Arar, Özgür; Samatya, Saba; Yüksel, Ümran; Yüksel, Mithat

doi:10.1016/j.jhazmat.2007.08.024

Cited by 190 publications

(91 citation statements)

References 32 publications

(34 reference statements)

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“…This result agrees with that obtained in the previous studies (Kabay et al 2002;Banasiak et al 2007;Kabay et al 2008;Shady et al 2012).…”

Section: Statistical Analysis and Modelingsupporting

confidence: 94%

“…It can be described as the energy needed to treat unit volume of solution. The SPC was calculated for each experimental condition using the following equation (Kabay et al 2008).…”

Section: Discussionmentioning

confidence: 99%

“…In most previous studies, the effect of some parameters on ED process is determined by varying one parameter by time, maintaining all the other parameters constant (Elmidaoui et al 2002;Kabay et al 2008;Ben Sik Ali et al 2010a, b). Then the best value achieved by this procedure is fixed and other parameters are varied by time.…”

Section: Introductionmentioning

confidence: 99%

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Electrodialytic desalination of brackish water: determination of optimal experimental parameters using full factorial design

et al. 2017

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The aim of this work is to study the desalination of brackish water by electrodialysis (ED). A two levelthree factor (2 3 ) full factorial design methodology was used to investigate the influence of different physicochemical parameters on the demineralization rate (DR) and the specific power consumption (SPC). Statistical design determines factors which have the important effects on ED performance and studies all interactions between the considered parameters. Three significant factors were used including applied potential, salt concentration and flow rate. The experimental results and statistical analysis show that applied potential and salt concentration are the main effect for DR as well as for SPC. The effect of interaction between applied potential and salt concentration was observed for SPC. A maximum value of 82.24% was obtained for DR under optimum conditions and the best value of SPC obtained was 5.64 Wh L -1 . Empirical regression models were also obtained and used to predict the DR and the SPC profiles with satisfactory results. The process was applied for the treatment of real brackish water using the optimal parameters.

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“…This result agrees with that obtained in the previous studies (Kabay et al 2002;Banasiak et al 2007;Kabay et al 2008;Shady et al 2012).…”

Section: Statistical Analysis and Modelingsupporting

confidence: 94%

“…It can be described as the energy needed to treat unit volume of solution. The SPC was calculated for each experimental condition using the following equation (Kabay et al 2008).…”

Section: Discussionmentioning

confidence: 99%

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Electrodialytic desalination of brackish water: determination of optimal experimental parameters using full factorial design

et al. 2017

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“…Precipitation treatment usually reduces high concentrations of fluoride to 2 mg L −1 (Fan et al, 2003). Membrane techniques such as reverse osmosis, nanofiltration (Donnan dialysis, electrocoagulation and electrolysis have been developed to effectively remove the fluoride from water (Diawara, 2008;Durmaz et al, 2005;Kabay et al, 2008;Zhu et al, 2007). During weathering and circulation of water in rocks and soils, fluorine can be leached out and dissolved in groundwater.…”

Section: Discussionmentioning

confidence: 99%

Study of Physico-Chemical Properties of the Surface and Ground Water

Al-Ghamdi¹

2014

American Journal of Environmental Sciences

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Of all the natural resources, water is unarguably the most essential and precious. Life began in water and life is nurtured by water. Ninety seven percent of the world's water is found in oceans. Only 2.5% of the world's water are non-saline fresh water. Saudi Arabia is a desert country with no permanent rivers or lakes and very little rainfall. Water is scarce and extremely valuable and with the country's rapid growth, the demand for water is increasing. Seven samples of water are collected, six samples from Wells (1-6) and the last sample from Al-Mallah Valley Dam, Mukhwa (7), Al-Mukhwah, in order to find impurities and pollutants and found some suitable solution. Some physical properties of water are measured such as turbidity, conductivity, pH and also, some pollutants such as iron, manganese, nitrate, nitrite fluoride, phosphate as well as calcium, magnesium, sulfate and chloride as well as detection of some microorganisms. The results shown that, the water of Al-Mallah Valley Dam has a high percentage of turbidity as a result of contamination of water with clay, plant residues and also some dead animals. On the other hand, the samples of ground water have high conductivity and high value of fluoride, nitrite, nitrate contents as well as Mn and Fe. Also the result of microorganisms showed the presence of some the water of Al-Mallah Valley Dam can be treated with a very simple method and become suitable for drinking. Also ground water can be treated with a suitable method to reduce the total hardness and some pollutants. But its content of fluoride is higher than that of gulf specifications so it must be treated before used.

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“…The methods that are either developed in the laboratory or used in the field are based on one or combination of the following principles: adsorption (Apparao et al 1998), ion exchange (Singh et al 1999), precipitation-coagulation (Saha 1993;Rao et al 1998;Reardon and Wang 2000) and membrane separation process (Mohapatra et al 2009;Ndiaye et al 2005;Richards et al 2010;Malaisamy et al 2011;Hu and Dickson 2006;Hou et al 2010;Durmaz et al 2005;Hichour et al 2000;Kabay et al 2008;Sahli et al 2007, Meenakshi andMaheshwari 2006). A major point to be noted regarding the fluoride removal from contaminated water is that while other commonly occurring toxic ions in drinking water are significant in sub-mg/L concentration, fluoride normally is present in mg/L range in the contaminated waters.…”

Section: Introductionmentioning

confidence: 99%

Enhanced fluoride removal by hydroxyapatite-modified activated alumina

Tomar

Thareja

Sarkar

2014

Int. J. Environ. Sci. Technol.

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Fluoride in drinking water is beneficial at low concentrations but is considered harmful for the human health when present at concentrations exceeding 1.5 mg/L. Prevalence of high concentration of fluoride in drinking water, combined with the nonavailability of alternate viable sources, makes the treatment of the contaminated water an essential task. In this study, we report the synthesis and characterization of a hybrid adsorbent; hydroxyapatitemodified activated alumina (HMAA) prepared by dispersing nanoparticles of hydroxyapatite inside activated alumina granules. The composite adsorbent provided a synergy toward fluoride removal from contaminated drinking water. The hybrid adsorbent possesses a maximum adsorption capacity of 14.4 mg F/g which is at least five times higher than the virgin-activated alumina, which has been used extensively for fluoride removal. HMAA was regenerated using six bed volumes of a solution containing commonly available innocuous chemicals. The adsorbent was subjected to multiple numbers of operating cycles within a column, each cycle consisting of one adsorption run followed by regeneration.

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Separation of fluoride from aqueous solution by electrodialysis: Effect of process parameters and other ionic species

Cited by 190 publications

References 32 publications

Electrodialytic desalination of brackish water: determination of optimal experimental parameters using full factorial design

Electrodialytic desalination of brackish water: determination of optimal experimental parameters using full factorial design

Study of Physico-Chemical Properties of the Surface and Ground Water

Enhanced fluoride removal by hydroxyapatite-modified activated alumina

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