Influence of the Low Frequency Ultrasound on the Cadmium (II) Biosorption by an Ecofriendly Biocomposite (Extraction Solid Waste of Ammi visnaga / Calcium Alginate): Kinetic Modeling
L. Nouri Taiba, Y. Bouhamidi, F. Kaouah, Z. Bendjama, M. Trari
Feb 2016
International Journal of Chemical, Molecular, Nuclear, Materials and Metallurgical Engineering
Abstract : 

In the present study, an ecofriendly biocomposite namely calcium alginate immobilized Ammi Visnaga (Khella) extraction waste (SWAV/CA) was prepared by electrostatic extrusion method and used on the cadmium biosorption from aqueous phase with and without the assistance of ultrasound in batch conditions. The influence of low frequency ultrasound (37 and 80 KHz) on the cadmium biosorption kinetics was studied. The obtained results show that the ultrasonic irradiation significantly enhances and improves the efficiency of the cadmium removal. The Pseudo first order, Pseudosecond-order, Intraparticle diffusion, and Elovich models were evaluated using the non-linear curve fitting analysis method. Modeling of kinetic results shows that biosorption process is best described by the pseudo-second order and Elovich, in both the absence and presence of ultrasound.


The soil from an industrial area in Algeria was contaminated with Cr (8370 mg kg−1), Ni (1135 mg kg−1) and zinc (1200 mg kg−1).
Mixed oxide MnO/Mn3O4 was successfully incorporated into NiAl hydrotalcite derived systems following an ionic excha
The preparation and characterization of the hetero-junctions x%Bi2S3/TiO2 (x = 1, 5, 10 and 15%) and their photocatalytic performances for the degr
A one-pot diastereoselective base-catalyzed Michael-initiated ring-closure (MIRC) of activated methyl ketones with 3-bromochromones to give c
The modified carbon paste electrode with Ru(III) complex was studied as a novel sensor for the determination of nitrite.
Problems related to water mixing becoming more important, especially when it comes to evaluate the impact of a domestic, industrial or
This study proposes an ultrasound-horn system for the extraction of a natural active compound “artemisinin” from Artemisia annua