1. Production and Dry Mechanochemical Activation of Biochars Derived from Moroccan Red Macroalgae Residue and Olive Pomace Biomass for Treating Wastewater: Thermodynamic, Isotherm, and Kinetic Studies
- Author
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Emna Abdeljaoued, Saida Tayibi, Youssef Zeroual, Nour-Elhouda Fayoud, Florian Monlau, Abdallah Oukarroum, Abdellatif Barakat, Hassane Hannache, APESA [Pau], Ingénierie des Agro-polymères et Technologies Émergentes (UMR IATE), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Institut Agro - Montpellier SupAgro, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université Mohammed VI Polytechnique [Ben Guerir] (UM6P), Faculté des Sciences Ben M'sik [Casablanca], Université Hassan II [Casablanca] (UH2MC), Groupe OCP, ATLASS Project (OCP group, INRAE Montpellier, Mohammed VI Polytechnic University and APESA technological center), ANR-17-ARM2-0008,PYRODIGEST,Transformation des déchets de l'industrie oléicole via un procédé combiné de pyrolyse et de digestion anaérobie: production d'énergie, de produits à valeur ajoutée et de fertilisants(2017), European Project: 618127,EC:FP7:KBBE,FP7-ERANET-2013-RTD,ARIMNET2(2014), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and Mohammed VI Polytechnic University [Marocco] (UM6P)
- Subjects
biology ,[SDE.IE]Environmental Sciences/Environmental Engineering ,Chemistry ,General Chemical Engineering ,Pomace ,02 engineering and technology ,General Chemistry ,010501 environmental sciences ,021001 nanoscience & nanotechnology ,biology.organism_classification ,Pulp and paper industry ,01 natural sciences ,Article ,6. Clean water ,Residue (chemistry) ,Algae ,Wastewater ,0210 nano-technology ,QD1-999 ,Ball mill ,0105 earth and related environmental sciences - Abstract
International audience; This study aimed to produce activated biochars (BCs) from Moroccan algae residue (AG) and olive pomace (OP) using mechanochemical activation with NaOH and ball milling (BM) for treating artificial textile wastewater containing methylene blue (MeB). The produced OP-activated BC by BM showed the highest absolute value of zeta-potential (-59.7 mV) and high removal efficiency of MeB compared to other activated BCs. The nonlinear pseudo-first-order kinetic model was the most suitable model to describe the kinetics of adsorption of MeB onto biochars produced from AG and the NaOH-activated BC from OP, whereas the nonlinear pseudo-second-order kinetic model suits the OP raw biochar and BM-activated BC. The nonlinear Langmuir isotherm model was the most suitable model for describing MeB adsorption onto BCs, compared to the nonlinear Freundlich isotherm model. The maximum adsorption capacities of AG-activated BCs with NaOH and BM were 13.1 and 9.1 mg/g, respectively, while those of OP-activated BCs were 2.6 and 31.8 mg/g, respectively. The thermodynamic study indicates the spontaneous and endothermic nature of the adsorption process of most activated BCs. In addition, Delta S degrees values indicate the increase of randomness at the solid-liquid interface during MeB sorption onto BC.
- Published
- 2020