Chitin Beads from Peneaus sp. Shells as a Biosorbent for Methylene Blue Dye Removal

Abstract

The adsorption potential of chitin, a polysaccharide found in the exoskeleton of shrimp, was evaluated using methylene blue cationic dye. Batch adsorption studies were done using a column by optimized bed height of 22.2 cm and retention time of 90 min. The alginate:chitin ratio was taken as 1:07 with 80 mgl-1initial dye concentration, and pH was maintained at 8. There was 90% adsorption of dye. Langmuir and Freundlich isotherms were studied along with the adsorption kinetics. The plots indicated that the data fitted Langmuir isotherm. The R 2 is greater for pseudo second-order kinetics and Weber and Morris' model on intra particle diffusion best fit this adsorption by chitin.

Adsorption of methylene blue dye by different methods of obtaining shrimp residue chitin

“…However, some studies have achieved higher efficiencies in MB removal, such as: Dotto et al (2015), with a 85% removal of the dye with shrimp residue; Ahmad and Ansari (2021), who achieved results above 88% in neutral pH, with the use of hybrid clay with modified nanocompost of chitosan; Ma et al (2016), which reached up to 90% of MB removal by using foam composed of graphene oxide/chitin; Mabel et al (2019), with an efficiency of 90% of adsorption with crustacean chitin; Lima et al (2006), with a 97% MB removal with the use of activated carbon; Jorge et al (2015), which also removed 97% of the initial concentration of MB, but with the use of sugarcane bagasse; Silva et al (2018), with a removal efficiency of 99% of MB with the use of activated charcoal of ryegrass straw. Jawad et al (2020) obtained 90% MB removal efficiency, differing in the methodology applied to the research in time and rotation parameters, from 180 minutes at 110 RPM.…”

“…Potential adsorbents are numerous organic residues, such as sugarcane residues (Jorge et al, 2015), ryegrass straw (Silva et al, 2018), fly ash (Cunico et al, 2015), green coconut (Oliveira et al, 2018), pine and bamboo sawdust (Müller et al, 2019). Many research on adsorption of dyes from crustacean residues (Dotto et al, 2011;Labidi et al, 2019;Mabel et al, 2019) refer to the use of chitin.…”

New Cellulose based pH-Sensitive Hydrogel for Highly Efficient Dyes Removal in Water Treatment: Kinetic, Thermodynamic, Theoretical and Computational Studies

“…The comparison of the coefficient correlation (R) of the linear regression was carried out to confirm the validity of the kinetic models and to examine absorption kinetic process. Thus, kinetic parameters results of the two models, summarized in Meanwhile, the study of intraparticle scattering was performed basing on Weber-Morries intra-particle diffusion model (Mabel, Sundararaman et al 2019) described by eq. 10, where kint is the rate constant of intraparticle diffusion model (mg.g -1 .min -1/2 ), and C is a constant involved in the thickness of the boundary layer of the intraparticle diffusion model (mg.g −1 ).…”

A New Approach for Dye Removal with a Polymer: Removal of Acid Orange 12 from Aqueous Solution with Shrimp Chitin

“…On the other hand, dye removal by adsorption is a positive alternative. Different materials such as activated sludge-activated carbon, chitin, and chitosan can be used in dye removal by adsorption (Desbrières & Guibal, 2018;Millicent Mabel et al, 2019;Maderova et al, 2016;Herrera-González et al, 2019;Joshi et al, 2004;Stingley et al, 2010;Cho et al, 2015).…”