Caffeine, surfactants and organic matter in a high Andean River: Chumbao River case, Apurimac, Peru

Choque-Quispe, David; Herbas-De la Cruz, Ruth Karina; Ligarda-Samanez, Carlos A.; Solano-Reynoso, Aydeé M.; Buleje-Campos, Dianeth; Choque-Quispe, Yudith; Muñoz-Saenz, Jenny C.; Pumacayo-Sanchez, Zaida Olinda; Sumarriva-Bustinza, Liliana Asunción; Silvera Ticona, Nikol Alexsandra

doi:10.1016/j.cscee.2023.100548

Case Studies in Chemical and Environmental Engineering

2024

DOI: 10.1016/j.cscee.2023.100548

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Caffeine, surfactants and organic matter in a high Andean River: Chumbao River case, Apurimac, Peru

David Choque-Quispe,

Ruth Karina Herbas-De la Cruz,

Carlos A. Ligarda-Samanez

et al.

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2024

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Cited by 2 publications

References 62 publications

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Assessment of water quality and emerging pollutants in two fish species from the mallorquin swamp in the Colombian Caribbean

Elles-Pérez,

Guzman-Tordecilla,

Ramos

et al. 2024

Heliyon

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Assessment of water quality and emerging pollutants in two fish species from the mallorquin swamp in the Colombian Caribbean

Elles-Pérez,

Guzman-Tordecilla,

Ramos

et al. 2024

Heliyon

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Activated Nanocellulose from Corn Husk: Application to As and Pb Adsorption Kinetics in Batch Wastewater

Solano-Reynoso,

Quispe-Quispe,

Choque-Quispe

et al. 2024

Polymers

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The aim of this study was to evaluate the removal of Pb and As from an aqueous solution using corn residue cellulose nanocrystals (NCCs). The corn husk was subjected to alkaline digestion, followed by bleaching and esterification with 3% citric acid to obtain NCCs. A 10 ppm multimetal solution of Pb and As was prepared. The adsorption process was evaluated by adjusting the pH and NCC dosage, optimized through the nonlinear regression of empirical mathematical models. Based on the optimal parameters, the kinetics were evaluated using the PFO and PSO models. The NCCs displayed nanometer-level characteristics with a particle size less than 383.7 nm, a ζ potential in the range of −28–70 mV, pHZCP with an acidic tendency, a porous crystal structure as evaluated through SEM images, and the presence of functional groups with a high chelating capacity, as identified via FTIR. Optimum values of pH 8.0 and 20 mg/L of the NCC dose were found, from which it was observed that the PFO, PSO, and Elovich kinetics showed R2 > 0.974, with an adsorption capacity in the order Pb > As. The adsorbent-formulated NCCs presented a good capacity to remove heavy metals from aqueous media.

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Caffeine, surfactants and organic matter in a high Andean River: Chumbao River case, Apurimac, Peru

Cited by 2 publications

References 62 publications

Assessment of water quality and emerging pollutants in two fish species from the mallorquin swamp in the Colombian Caribbean

Assessment of water quality and emerging pollutants in two fish species from the mallorquin swamp in the Colombian Caribbean

Activated Nanocellulose from Corn Husk: Application to As and Pb Adsorption Kinetics in Batch Wastewater

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