Defluoridation of water using calcium aluminate material

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F12%3A00387987" target="_blank" >RIV/61388980:_____/12:00387987 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.cej.2012.07.065" target="_blank" >http://dx.doi.org/10.1016/j.cej.2012.07.065</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.cej.2012.07.065" target="_blank" >10.1016/j.cej.2012.07.065</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Defluoridation of water using calcium aluminate material

Popis výsledku v původním jazyce

A new calcium aluminate (CA) type material has been synthesized using combustion method, which offers formation of smaller particles with open pores. The material thus synthesized has been studied for its fluoride uptake properties in simulated and actual drinking waters, containing fluoride as well as other co-anions. The adsorbent shows high adsorption capacity for fluoride and it is possible to effectively remove fluoride to the tune of 85% from initial concentration of 8.9 mg L-1 and using a dose of3 g L-1. Kinetics of the adsorption system has been studied indicating that the intra-particle diffusion contributes to the rate determining step. The experimental data fitted well into Langmuir adsorption isotherm and follows pseudo-second-order kinetics. The thermodynamic parameters suggest the complex nature of fluoride uptake reaction, dominated by chemisorption. These studies also infer that fluoride adsorption on CA is spontaneous and an endothermic process. The effective regenera

Název v anglickém jazyce

Defluoridation of water using calcium aluminate material

Popis výsledku anglicky

A new calcium aluminate (CA) type material has been synthesized using combustion method, which offers formation of smaller particles with open pores. The material thus synthesized has been studied for its fluoride uptake properties in simulated and actual drinking waters, containing fluoride as well as other co-anions. The adsorbent shows high adsorption capacity for fluoride and it is possible to effectively remove fluoride to the tune of 85% from initial concentration of 8.9 mg L-1 and using a dose of3 g L-1. Kinetics of the adsorption system has been studied indicating that the intra-particle diffusion contributes to the rate determining step. The experimental data fitted well into Langmuir adsorption isotherm and follows pseudo-second-order kinetics. The thermodynamic parameters suggest the complex nature of fluoride uptake reaction, dominated by chemisorption. These studies also infer that fluoride adsorption on CA is spontaneous and an endothermic process. The effective regenera

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/LC523" target="_blank" >LC523: Perspektivní anorganické materiály</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemical Engineering Journal

ISSN

1385-8947

e-ISSN

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Svazek periodika

203

Číslo periodika v rámci svazku

SEPTEMBER

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

406-414

Kód UT WoS článku

000309630300046

EID výsledku v databázi Scopus

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