2020
DOI: 10.4136/ambi-agua.2483
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Sorption of the Direct Black 22 dye in alluvial soil

Abstract: The semiarid region of Pernambuco has a large water deficit, leading the population to explore groundwater resources such as alluvial aquifers. The state of Pernambuco also stands out for having the second-largest textile manufacturing center in Brazil. However, the direct discharge of textile effluents from the region's industries has intensified the negative impacts on water conservation and alluvial soils. This work characterized the sorption of Direct Black 22 dye (DB22) in two layers of alluvial s… Show more

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Cited by 5 publications
(7 citation statements)
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“…In order to know some characteristics about the adsorption kinetics of RBB in cellulose, the experimental data obtained in the kinetic study were evaluated by three kinetic models, namely: the pseudo-first order, pseudo-second order and intraparticle diffusion models (Morris-Weber) using Linear Equations 5, 6 and 7 [25,28,29].…”
Section: Adsorption Kineticsmentioning
confidence: 99%
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“…In order to know some characteristics about the adsorption kinetics of RBB in cellulose, the experimental data obtained in the kinetic study were evaluated by three kinetic models, namely: the pseudo-first order, pseudo-second order and intraparticle diffusion models (Morris-Weber) using Linear Equations 5, 6 and 7 [25,28,29].…”
Section: Adsorption Kineticsmentioning
confidence: 99%
“…The adsorption isotherms represent a balance between the concentration of dye in the liquid phase and the amount of dye present in the adsorbent [28,29]. All equilibrium tests were performed in triplicate, the conditions used were: 0.5 g of adsorbent, 150 rpm for 12 h and pH 3.5, in different concentrations of the dye solution (25, 35, 45, 55 and 65 mg L -1 ) and different temperatures (30, 40, 60 and 100 ± 2 ºC).…”
Section: Balance Study and Determination Of Thermodynamic Parametersmentioning
confidence: 99%
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“…Soils have good retention capacity for textile contaminants, especially in the case of dyes (Alexandre et al, 2020;Alves et al, 2020), proving that simple techniques also produce satisfactory results. Therefore, slow sand filtration appears as a simple alternative for treating textile effluents.…”
Section: Introductionmentioning
confidence: 99%