Olive mill wastewater from a liquid biological waste to a carbon/oxocalcium composite for selective and efficient removal of methylene blue and paracetamol from aqueous solution

Issam Mechnou; Sarra Meskini; Doha El Ayar; Laurent Lebrun; Miloudi Hlaibi

doi:10.1016/j.biortech.2022.128162

Olive mill wastewater from a liquid biological waste to a carbon/oxocalcium composite for selective and efficient removal of methylene blue and paracetamol from aqueous solution

Bioresour Technol. 2022 Dec:365:128162. doi: 10.1016/j.biortech.2022.128162. Epub 2022 Oct 22.

Authors

Issam Mechnou¹, Sarra Meskini², Doha El Ayar³, Laurent Lebrun⁴, Miloudi Hlaibi⁵

Affiliations

¹ Laboratory of Materials Engineering for Environment and Valorization (GeMEV), team (I3MP), Ain Chock Faculty of Sciences, Hassan II University of Casablanca (UH2C), Morocco. Electronic address: issam.mechnou-etu@etu.univh2c.ma.
² Laboratory of Geosciences Applied to Urban Development Engineering (GAIA), Ain Chock Faculty of Sciences, Hassan II University of Casablanca (UH2C), Morocco.
³ Laboratory of Materials Engineering for Environment and Valorization (GeMEV), team (I3MP), Ain Chock Faculty of Sciences, Hassan II University of Casablanca (UH2C), Morocco.
⁴ Polymers, Biopolymers, Surfaces Laboratory (PBS), UMR 6270 of CNRS, University of Rouen, Faculty of Science and Technology, F-76821 Mont-Saint-Aignan, France.
⁵ Laboratory of Materials Engineering for Environment and Valorization (GeMEV), team (I3MP), Ain Chock Faculty of Sciences, Hassan II University of Casablanca (UH2C), Morocco; Polymers, Biopolymers, Surfaces Laboratory (PBS), UMR 6270 of CNRS, University of Rouen, Faculty of Science and Technology, F-76821 Mont-Saint-Aignan, France.

PMID: 36283674
DOI: 10.1016/j.biortech.2022.128162

Abstract

In this study, a Carbon/Oxocalcium was prepared from olive mill wastewater and successfully applied to the removal of paracetamol and methylene blue (MB) from an aqueous medium. The optimized composite (0.3 % CaO) is rich in anionic sites, porous and has a specific surface area of about 1383 m².g^-1. Adsorption tests showed significant adsorption capacities up to 1141 mg.g^-1. The adsorption of MB and paracetamol is well described by the Redlich-Peterson and Dubinin-Radushkevich isotherm, respectively. Moreover, the adsorption kinetics fitted to pseudo-second order. The π -π interactions, hydrogen bonds and electrostatic interactions were responsible for the adsorption of paracetamol and MB substrates. This work develops by a single, easy and simple action a new effective and selective material for the removal of emerging pollutants, a new method for the development of more stable carbon composites and a cost-effective method for the valorization of olive mill wastewater.

Keywords: Adsorption; Carbon composite; Olive mill wastewater; Removal of hazardous molecules; Valorization of biological wastewater.

MeSH terms

Acetaminophen
Adsorption
Carbon / chemistry
Hydrogen-Ion Concentration
Kinetics
Methylene Blue / chemistry
Olea*
Wastewater
Water
Water Pollutants, Chemical* / chemistry

Substances

Methylene Blue
Wastewater
Carbon
Acetaminophen
Water Pollutants, Chemical
Water