Abstract
The live and pretreated biomass of Aspergillus fumigatus was used for the biosorption of As(III) from aqueous solution. Three parameters that affect the As(III) adsorption, namely agitation time, concentration of As(III), and pH have been investigated. In order to develop an effective and accurate design model for removal of As(III), adsorption kinetics and equilibrium data are essential basic requirements. Lagergren first-order and second-order were used to fit the experimental data. The studies on optimi- zation of agitation time, adsorbent dosage, and pH showed that the FeCl3 treated biomass had the maximum capacity to adsorb As(III) and live biomass was found to be mini- mum compared to all pretreated. The Langmuir, Freundlich, and Temkin adsorption models were used for the mathematical description of the biosorption equilib- rium. The maximum adsorption capacity of 0.538 mg/g was observed in FeCl3 treated biomass using Langmuir isotherm. Batch mode experiments proved to be efficient. Desorption studies were also carried out with dilute sodium hydroxide to recover both the adsorbent and adsorbate.
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.
