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CHARACTERIZATION OF THE BIOSORPTION OF LEAD AND CADMIUM WITH THE RED ALGA (CERAMIUM VIRGATUM)

Yasser Hannachi ; Faculty of Science, Monastir, Tunisie

Puni tekst: engleski, pdf (468 KB) str. 93-109 preuzimanja: 194* citiraj
APA 6th Edition
Hannachi, Y. (2012). CHARACTERIZATION OF THE BIOSORPTION OF LEAD AND CADMIUM WITH THE RED ALGA (CERAMIUM VIRGATUM). The holistic approach to environment, 2 (3), 93-109. Preuzeto s https://hrcak.srce.hr/86217
MLA 8th Edition
Hannachi, Yasser. "CHARACTERIZATION OF THE BIOSORPTION OF LEAD AND CADMIUM WITH THE RED ALGA (CERAMIUM VIRGATUM)." The holistic approach to environment, vol. 2, br. 3, 2012, str. 93-109. https://hrcak.srce.hr/86217. Citirano 12.12.2019.
Chicago 17th Edition
Hannachi, Yasser. "CHARACTERIZATION OF THE BIOSORPTION OF LEAD AND CADMIUM WITH THE RED ALGA (CERAMIUM VIRGATUM)." The holistic approach to environment 2, br. 3 (2012): 93-109. https://hrcak.srce.hr/86217
Harvard
Hannachi, Y. (2012). 'CHARACTERIZATION OF THE BIOSORPTION OF LEAD AND CADMIUM WITH THE RED ALGA (CERAMIUM VIRGATUM)', The holistic approach to environment, 2(3), str. 93-109. Preuzeto s: https://hrcak.srce.hr/86217 (Datum pristupa: 12.12.2019.)
Vancouver
Hannachi Y. CHARACTERIZATION OF THE BIOSORPTION OF LEAD AND CADMIUM WITH THE RED ALGA (CERAMIUM VIRGATUM). The holistic approach to environment [Internet]. 2012 [pristupljeno 12.12.2019.];2(3):93-109. Dostupno na: https://hrcak.srce.hr/86217
IEEE
Y. Hannachi, "CHARACTERIZATION OF THE BIOSORPTION OF LEAD AND CADMIUM WITH THE RED ALGA (CERAMIUM VIRGATUM)", The holistic approach to environment, vol.2, br. 3, str. 93-109, 2012. [Online]. Dostupno na: https://hrcak.srce.hr/86217. [Citirano: 12.12.2019.]

Sažetak
In this study Ceramium virgatum has been characterized and used for the removal of cadmium and lead from aqueous solutions. The effect of pH, adsorbent dosage, contact time and temperature on adsorption process was studied in batch experiments. Langmuir and Freundlich models were applied to describe the biosorption isotherm of the metal ions by C. virgatum biomass. The adsorption data can be well described by Langmuir isotherm. The monolayer biosorption capacity of C. virgatum biomass for Pb(II) and Cd(II) ions was found to 56.2 mg/g and 53.1 mg/g, respectively. The mean free energy calculated from Dubinin–Radushkevich isotherm indicated that the biosorption of Pb(II) and Cd(II) onto C. virgatum macroalga was taken place by chemical ion-exchange. Kinetics data of both metal ions were best described by pseudo second order model. The thermodynamic studies showed that the adsorption was spontaneous and exothermic in nature. The analysis with Fourier transform infrared spectroscopy indicated that the carboxyl (–C O), hydroxyl (–OH), and amine (–NH) groups are responsible for the binding of the metal ions.

Ključne riječi
Langmuir and Freundlich models; biosorption; FTIR analysis; kinetic

Hrčak ID: 86217

URI
https://hrcak.srce.hr/86217

Posjeta: 359 *