Biosorption of direct black dye by cassava root husks: Kinetics, equilibrium, thermodynamics and mechanism assessment

Scheufele, Fabiano Bisinella; Staudt, Júnior; Ueda, Marcelo Heidi; Ribeiro, C.; Steffen, Vilmar; Borba, Carlos Eduardo; Módenes, Aparecido Nivaldo; Kroumov, Alexander Dimitrov

doi:10.1016/j.jece.2019.103533

Cited by 35 publications

(10 citation statements)

References 54 publications

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“…The PZC of the CP without chemical treatment, as in this study, is reported to be 2–4, meaning that the surface was negative at both pH 7 and 8 (Schwantes et al, 2022). The Cl – ions, being negatively charged colloids, showed a higher uptake at pH 8, suggesting that electrostatic forces were not the primary factor in their removal at this pH (Scheufele et al, 2020). Instead, it is likely that weak van der Waals forces and penetration into the particle pores of CP were responsible for the removal of Cl – .…”

Section: Resultsmentioning

confidence: 99%

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Simultaneous removal of chloride and hardness from groundwater by cassava peel biosorption: Optimization and sorption studies

Nyangi

2023

Remediation Journal

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In this study, activated carbon produced from cassava peel (CP) via carbonization at 400°C was utilized as a biosorbent for the removal of chloride (Cl−) and total hardness (TH) from groundwater. A response surface methodology (RSM) employing a Box–Behnken design (BBD) was implemented to optimize process parameters, including pH (3–10), biosorbent dosage (1–10 g), contact time (10–60 min), initial Cl− concentration (50–2000 mg/L), and initial TH concentration (40–900 mg/L). The biosorbent was applied in a batch reactor setup to evaluate its performance in removing Cl− and TH from groundwater under the optimized conditions. The experimental data showed good agreement with the model predictions, exhibiting R2 of 0.991 and 0.905 for Cl− and TH removal, respectively. The CP biosorbent removed Cl− (245 mg/L) and TH (321 mg/L) by 84% and 90%, respectively, under optimal conditions of 6.9 g CP dose, 19.6 min, and initial pH of 8.1. The sorption kinetics followed a pseudo‐second‐order, and the equilibrium data fit the Freundlich and Langmuir models to Cl− and TH, respectively. The removal of Cl− and TH exhibited maximum adsorption capacities (qm) of 31.25 and 6.57 mg/g for Cl− and TH, respectively. Overall, CP shows potential as an adsorbent for remediating groundwater containing Cl− and TH.

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Section: Resultsmentioning

confidence: 99%

“…showed that the 400°C sample had the best adsorbent properties ( ), facilitating greater adsorption (Scheufele et al, 2020).…”

Section: Proximate Analysismentioning

confidence: 99%

Simultaneous removal of chloride and hardness from groundwater by cassava peel biosorption: Optimization and sorption studies

Nyangi

2023

Remediation Journal

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“…The Langmuir constant was utilized to calculate the maximum adsorption capacity QmL (mg/g) which gave a value of 27.83 mg/g (95% confidence interval from 23.69 to 31.98). The Langmuir isotherm is among the most cited best isothermal models to govern biosorption of xenobiotics followed by the Freundlich model [20][21][22][23][24][25][26][27]. The Langmuir model was the best model for the biosorption of Cibacron Blue by inactive mycelial biomass of Panus fulvus [28] while both the Langmuir and Freundlich models were found to be the best for Cibacron Blue sorption by activated sludge [29].…”

Section: Resultsmentioning

confidence: 99%

Isothermal Modelling of the Adsorption of Cibacron Blue onto Bean Peel

Shukor

2021

Asian J Plant Biol

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Biosorption is a sort of sorption technology in which the sorbent is a substance that is biologically sourced. In today's world, biosorption is seen as a simple, inexpensive, and ecologically friendly way for removing pollutants from the environment. One of the branches of bioremediation that is utilised to decrease environmental pollution in the context of minimising improper textile waste disposal is this method. The sorption isotherm of Cibacron Blue onto bean peel were analyzed using ten models—Henry, Langmuir, Dubinin-Radushkevich, Freundlich, BET, Toth, Sips, Fritz-Schlunder IV, Baudu and Fritz-Schlunder V, and fitted using non-linear regression. Statistical analysis based on root-mean-square error (RMSE), adjusted coefficient of determination (adjR2), bias factor (BF), accuracy factor (AF), corrected AICc (Akaike Information Criterion), BIC and HQC showed that the Freundlich model was the best model in terms of overall best criteria. The calculated evidence ratio was 8 with an AICc probability value of 0.89 indicating that the best model was at least 8 times better than the nearest best model, which was Sips. The calculated Freundlich parameters KF (Freundlich isotherm constant) and nF (Freundlich exponent) were 5.369 (L/g) (95% confidence interval from 4.359 to 6.379) and 3.125 (95% confidence interval from 2.717 to 3.533). The Langmuir constant was utilized to calculate the maximum adsorption capacity QmL (mg/g) which gave a value of 27.83 mg/g (95% confidence interval from 23.69 to 31.98). The nonlinear regression method allows for the parameter values to be represented in the 95% confidence interval range which can better allow comparison with published results.

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“…By altering the temperature from 30 °C to 50 °C, Scheufele et al [66] investigated the impact of temperature on the biological sorption of straight black dye on cassava root husks. Tey drew the conclusion that straight black dye sorption using the cassava root husk is by nature an exothermic process since larger yields of adsorption occurred at lower temperatures (30 °C).…”

Section: Efect Of Temperaturementioning

confidence: 99%

A Review on Cassava Residues as Adsorbents for Removal of Organic and Inorganic Contaminants in Water and Wastewater

Gajendiran

Prabu

Sivamani³

et al. 2023

Journal of Chemistry

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An increase in water demand for drinking, agriculture, and industries necessitates the treatment of water and wastewater. Among various conventional treatment techniques available, adsorption is found to be one of the most economical and feasible methods. Adsorbents from plant biomass are effective for the removal of organic and inorganic pollutants. Cassava has gained attention among researchers during the past decades due to its plentiful availability and resilient characteristics. Even though cassava contains cyanogenic glucosides as toxins, it is used in industries for development of various products. Cassava stem, rhizome, peel, and bagasse are industrial residues that are generated in abundance. The present review focusses on factors affecting adsorption using cassava residues, adsorbent preparation and activation methods, equilibrium, mass transfer, kinetics, and thermodynamic studies of adsorption.

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Biosorption of direct black dye by cassava root husks: Kinetics, equilibrium, thermodynamics and mechanism assessment

Cited by 35 publications

References 54 publications

Simultaneous removal of chloride and hardness from groundwater by cassava peel biosorption: Optimization and sorption studies

Simultaneous removal of chloride and hardness from groundwater by cassava peel biosorption: Optimization and sorption studies

Isothermal Modelling of the Adsorption of Cibacron Blue onto Bean Peel

A Review on Cassava Residues as Adsorbents for Removal of Organic and Inorganic Contaminants in Water and Wastewater

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