Adsorption isotherm, kinetics and response surface methodology optimization of cadmium (Cd) removal from aqueous solution by chitosan biopolymers from cephalopod waste

Kavisri, M.; Abraham, Marykutty; Namasivayam, S.Karthik Raja; Kumar, J. Aravind; Balaji, D.; Sathishkumar, R; Sigamani, Sivaraj; Srinivasan, Ramachandran; Moovendhan, Meivelu

doi:10.1016/j.jenvman.2023.117484

Cited by 14 publications

(8 citation statements)

References 48 publications

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“…Their unique chemical structure (β-chitin), stability, chelation behavior, high reactivity, and selectivity toward contaminants make them excellent for adsorption (Bhatnagar & Sillanpää, 2009;Boamah et al, 2015). Recent studies have explored mollusk-derived β-chitin and chitosan as adsorbents for wastewater contaminants (Kavisri et al, 2023;Nouj et al, 2022;Siswoyo et al, 2023). For instance, chitosan from cephalopod waste proved effective in removing cadmium (Cd) from aqueous solutions, with optimal conditions at pH 7, 42.5 • C, 220 min, and 1 g/L sorbent dosage (Kavisri et al, 2023), highlighting the role of surface pores in adsorption.…”

Section: Food Industrial Applicationmentioning

confidence: 99%

“…Recent studies have explored mollusk-derived β-chitin and chitosan as adsorbents for wastewater contaminants (Kavisri et al, 2023;Nouj et al, 2022;Siswoyo et al, 2023). For instance, chitosan from cephalopod waste proved effective in removing cadmium (Cd) from aqueous solutions, with optimal conditions at pH 7, 42.5 • C, 220 min, and 1 g/L sorbent dosage (Kavisri et al, 2023), highlighting the role of surface pores in adsorption. Nouj et al (2022) demonstrated that β-chitin from cuttlefish bone significantly reduced turbidity, BOD, and COD in food processing wastewater.…”

Section: Food Industrial Applicationmentioning

confidence: 99%

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β‐Chitin and chitosan from waste shells of edible mollusks as a functional ingredient

Karthick Rajan,

Mohan,

Rajarajeswaran

et al. 2023

Food Frontiers

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The marine food‐processing industries were producing large quantities of shell wastes as a discard. Currently, this waste material was underutilized and leads to the landfill as a significant environmental issue. The outer shells or exoskeletons of mollusks serve as the best source of chitin. Three different allomorphs of chitin (γ, β, and γ) were extracted from different species of crustaceans, mollusks, and fungi. β‐Allomorphs predominantly exist in the shells of mollusks. β‐Chitin and its deacetylated product chitosan has been utilized for its special characteristic features, including biocompatibility, environmental friendly, and nontoxic properties. The extraction of β‐chitin and chitosan from the mollusk shell waste were evaluated in this work. Hence, this review aims to explore edible mollusk shell waste sources and its suitable extraction techniques, characterizations, and functional properties of mollusk‐based β‐chitin and chitosan. Further, the genetic pathway of synthesizing mollusk chitin was discussed. The entire life cycle assessment with techno‐economic aspects were extrapolated to study the bottlenecks and tangible solution for the industrial upscaling of obtaining β‐chitin and chitosan from the edible mollusk shell waste have been reviewed herein.

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Section: Food Industrial Applicationmentioning

confidence: 99%

Section: Food Industrial Applicationmentioning

confidence: 99%

β‐Chitin and chitosan from waste shells of edible mollusks as a functional ingredient

Karthick Rajan,

Mohan,

Rajarajeswaran

et al. 2023

Food Frontiers

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“…Treating wastewater to remove toxic metal pollutants is of great concern as these metals threaten people's and animals' health. [1][2][3] Among them, chromium is the seventh most abundant element on earth and is a naturally occurring metal found in the environment commonly in trivalent, Cr (III), and hexavalent, Cr (VI) forms. 4 Cr (III) is nontoxic and has an essential role as a micronutrient in the human diet.…”

Section: Introductionmentioning

confidence: 99%

Bacterial cellulose‐modified castor oil‐based polyurethane sponge for hexavalent chromium removal

Maia,

Pinhati,

Monteceli

et al. 2023

J of Applied Polymer Sci

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Due to the multiple industrial applications of chromium compounds and their dangerous nature for the environment, the development of adsorbent materials has been investigated. In line with this reality, bacterial cellulose (BC) has become a potential filler in the polymeric matrix due to its ability to remove toxic metals; however, its performance is little explored. This research proposes a new approach for BC as a filler in castor oil‐based polyurethane, obtaining a sponge for Cr(VI) removal. The pure PU and PU + X%BC sponges (X stands for BC content between 5 and 20 wt%) were characterized by Fourier‐transform infrared spectroscopy, scanning electron microscopy, optical microscopy, density, contact angle (CA), and thermogravimetric analysis. Sorption capacity and efficiency were evaluated as a function of the fiber content, with tests performed in function of contact time (2.5 min to 3 h) at 50 mg L−1. The BC fillers of the sponges increased the density and influenced the morphological, chemical structural, thermal, and sorption properties. Thus, the sponge (PU + 20%BC) presented the highest CA (104.4°) and the best sorption capacity and efficiency (4.3 mg g−1 and 43.2%). The sorption mechanism was well‐defined by isotherm models, presenting a maximum adsorption capacity of 23.5 mg g−1 and best fit (R2 = 0.989) with the Freundlich isotherm. The sponge is an efficient material for Cr (VI) removal and provided a promising insight into an adsorption mechanism study.

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“…Nowadays, many drinking water and agricultural irrigation sources are contaminated by heavy metals, representing a threat to human health even when at minimal concentrations within the body [ 1 , 2 ]. Cadmium (Cd) is an extremely dangerous heavy metal for people, animals, and plants [ 3 ]. It readily accumulates in the food chain to reach humans, causing severe damage to the renal, reproductive, nervous, hepatic, or pulmonary systems; it also affects growth, bone metabolism, and can even cause cancer [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, Cd removal is a very current topic of interest. There are traditional methods to remove cadmium from contaminated aqueous solutions: filtration, ion exchange, chemical oxidation or reduction, chemical precipitation, evaporative recovery, and electrochemical treatment [ 3 , 8 ]. However, these methods are not very effective for contaminated aqueous solutions with Cd concentrations below 100 mg L −1 [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Effective Removal of Cd(II) from Aqueous Solutions Using Theobroma cacao Agro-Industrial Waste

Lavado-Meza,

De la Cruz-Cerrón,

Lavado-Puente

et al. 2023

Molecules

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Theobroma cacao agro-industrial waste (WTC) has been characterized and tested as an effective biosorbent to remove Cd(II) from aqueous media. At the optimum pH of 5.0, a maximum adsorption capacity of qe,max = 58.5 mg g−1 was determined. The structural and morphological characterization have been conducted by FTIR, SEM/EDX, and TGA measurements. The SEM/EDX results confirmed that the metals are adsorbed on the surface. C-O-C, OH, CH, NH, and C=O functional groups were identified by FTIR. TGA results were consistent with the presence of hemicellulose. Biosorption kinetics were rapid during the first 30 min and then reached equilibrium. The corresponding experimental data were well fitted to pseudo-first and -second order models, the latter being the best. The biosorption isotherm data were also well fitted to Temkin, Langmuir, and Freundlich models, showing that several sorption mechanisms may be involved in the Cd(II) biosorption process, which was characterized as exothermic (ΔH0 < 0), feasible, and spontaneous (ΔG0 < 0). In binary (Cd–Pb and Cd–Cu) and ternary (Cd–Pb–Cu) systems, Cu(II) and particularly Pb(II) co-cations exert strong antagonistic effects. Using HNO3, effective good regeneration of WTC was obtained to efficiently remove Cd(II) up to three times.

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Adsorption isotherm, kinetics and response surface methodology optimization of cadmium (Cd) removal from aqueous solution by chitosan biopolymers from cephalopod waste

Cited by 14 publications

References 48 publications

β‐Chitin and chitosan from waste shells of edible mollusks as a functional ingredient

β‐Chitin and chitosan from waste shells of edible mollusks as a functional ingredient

Bacterial cellulose‐modified castor oil‐based polyurethane sponge for hexavalent chromium removal

Effective Removal of Cd(II) from Aqueous Solutions Using Theobroma cacao Agro-Industrial Waste

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