Decolorization of the Reactive Blue 19 from Aqueous Solutions with the Fenton Oxidation Process and Modeling with Deep Neural Networks

Değermenci̇, Nejdet; Akyol, Kemal

doi:10.1007/s11270-020-4402-8

Cited by 6 publications

(1 citation statement)

References 49 publications

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“…To limit the impact of hazardous dyes, many physicochemical treatments, are employed such as flocculation/coagulation 8 , ion exchange 9 , photocatalysis 10 . The list may be extented to advanced oxidation processes 11 , Membrane processes 12 , Fenton oxidation 13 and biological treatment. However treatments often become inefficient for dye elimination at low concentrations 14 .…”

Section: Introductionmentioning

confidence: 99%

Studies of the potential of a native natural biosorbent for the elimination of an anionic textile dye Cibacron Blue in aqueous solution

Grabi

Derridj

Lemlikchi

et al. 2021

Sci Rep

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This work is devoted to the adsorption of Cibacron Blue (CB) an anionic textile dye, on bean peel (BP) an agricultural waste with neither activation nor carbonization. The adsorption was realized in batch configuration at ambient temperature in acidic medium. The adsorbent was characterized by FTIR, SEM and BET analyses; the equilibrium isotherms and kinetics were also studied. It has been found that this waste could be used as a low-cost biosorbent for CB elimination under optimal working conditions. The rate of CB elimination reaches 95% on bean bark (3.6 g/L) at pH 2.2 and a reject concentration of 25 mg/L. The pseudo-second-order describes suitably the experimental data and the external diffusion is the rate-determining step. The Freundlich isotherm fits better the CB adsorption with a correlation coefficient (R2) of 0.94 and an RMSE = 1.5115. The negative enthalpy (ΔH) and free enthalpy (ΔG°) indicate a physical and spontaneous nature of the CB biosorption onto the biomaterial.

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