Targeting a Sustainable Sugar Crops Processing Industry: A Review (Part II): Reuse and Conversion Technologies

Lima, Isabel M.; Beacorn, Jean A.

doi:10.1007/s12355-022-01180-w

Cited by 2 publications

(1 citation statement)

References 173 publications

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“…The results, as shown in Table 1 below, depicts the physiochemical properties of the activated carbon, which gives an insight into the adsorption efficiency of the activated carbon. From the table, it was observed that the bulk density for AC calabash (0.306 g/cm 3 ) is slightly higher than the values reported by the American Water Works Association (AWWA) [14], giving the lower limit of bulk density as 0.25 g/cm 3 for GAC, but compared with the value of 0.5 g/cm 3 for decolourization of sugar as reported by Khadija et al [15] and closer to the AC of corncob from Nwadiogbu et al [16], 0.327 g/cm 3 . The pore volume of the calabash is 1.003 ml, possibly due to the pore structure and the nature of the walnut material.…”

Section: Analysis Of Physicochemical Propertiesmentioning

confidence: 60%

Kinetic and Equilibrium Isotherm of Pesticides (Atrazine) Adsorption Unto Activated Carbon of Calabash (Lagenaria Siceraria)

Chukwudi-Madu

Agboeze

Chime

et al. 2022

EPRA

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The adsorption of pesticides (Atrazine) from water onto activated carbon prepared from calabash was investigated. The kinetic and equilibrium study was carried out, and data obtained showed that time duration, the concentration of the solution, the dosage of activated carbon and the pH of the solution greatly influenced the adsorption process. The adsorption kinetic study of the pesticide was done using various models. The result best fits pseudo-second-order using the coefficient regression value (0.9922) and intraparticle diffusion. Equilibrium isotherm data were analysed using the Langmuir isotherm model and Freundlich isotherm model. The result of the regression value provided Freundlich isotherm as the best fit to the experimental data, indicating the presence of heterogeneous layer sorption from the regression value of 0.7294. This study suggested that the activated carbon of calabash as a low-cost material is suitable for the adsorption of pesticides from water. Hence it could be applied as a cheap and effective material in removing pesticides in water bodies or industrial waste before disposal. KEYWORDS: Pesticides, activated carbon, adsorption capacity, isotherm, kinetic study, calabash.

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