Abstract
In the batch study, the adsorption performance of calcium hydroxide-fly ash (CFA) in the fluoride removal from aqueous solution was investigated. The effects of various adsorption controlling parameters such as contact time, dosage, solution pH, temperature, and agitation speed on fluoride removal was analyzed. Eighty-nine percent of fluoride was removed by CFA at solution temperature of 50°C. The kinetic studies and isotherm studies were also performed to understand the sorption ability of CFA. The monolayer adsorption capacity from the Langmuir adsorption equation was found as 10.86 mg/g. Kinetic measurements suggested the involvement of pseudo-second-order kinetics in adsorption. It also suggested that particle diffusion process is not only a rate controlling step process. Overall, the present study showed that the adsorbent is environmental friendly, efficient, and a low-cost adsorbent which is useful for the removal of fluoride from aqueous solution.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
