Ahmed Amine Azzaz

ORCID: 0000-0003-3516-9722
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About
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Research Areas
  • Adsorption and biosorption for pollutant removal
  • Thermochemical Biomass Conversion Processes
  • Biodiesel Production and Applications
  • Edible Oils Quality and Analysis
  • Heavy metals in environment
  • Phosphorus and nutrient management
  • Catalysis and Hydrodesulfurization Studies
  • Cassava research and cyanide
  • Lignin and Wood Chemistry
  • Advanced oxidation water treatment
  • Enzyme-mediated dye degradation
  • Advanced Photocatalysis Techniques
  • Recycling and Waste Management Techniques
  • Membrane Separation Technologies
  • Microplastics and Plastic Pollution
  • Mine drainage and remediation techniques
  • Analytical chemistry methods development
  • Natural Fiber Reinforced Composites
  • Dye analysis and toxicity
  • TiO2 Photocatalysis and Solar Cells
  • Nanomaterials for catalytic reactions
  • Selenium in Biological Systems
  • Recycling and utilization of industrial and municipal waste in materials production
  • Polymer Foaming and Composites
  • Constructed Wetlands for Wastewater Treatment

Université de Haute-Alsace
2019-2023

Centre National de la Recherche Scientifique
2018-2023

Institut de Sciences des Matériaux de Mulhouse
2019-2023

Université Savoie Mont Blanc
2021-2023

École Nationale Supérieure de Chimie de Rennes
2018-2023

Université de Rennes
2018-2023

Université de Strasbourg
2019-2022

Sultan Qaboos University
2022

Total (France)
2022

University of Carthage
2015-2021

In this research work, an ecofriendly approach was adopted for the treatment of two abundant liquid and solid agricultural wastes generated by olive mill industry: wastewater (OMWW) raw pomace (ROP). It consists, firstly impregnation ROP OMWW conversion resulting impregnated sample (IROP) into hydrochars biochars through hydrothermal carbonization (HTC) slow pyrolysis methods, respectively. The impact temperature on physico-chemical properties derived chars assessed various analytical...

10.3390/pr10020231 article EN Processes 2022-01-25

In order to assess the potential use of low-cost materials for dye removal from aqueous solutions, adsorption cationic methylene blue (MB) onto orange tree sawdust was studied under static mode using raw (ROS) and chemically modified (MOS). The effect several parameters such as contact time, initial concentrations, pH, adsorbent dose, temperature were also investigated. Results showed that kinetic data MB both well fitted by second-order model equilibrium state reached after 180 min time....

10.1080/19443994.2015.1103313 article EN cc-by-nc-nd Desalination and Water Treatment 2015-10-22

Lignite, as an available and low-cost material, was tested for cadmium (Cd) copper (Cu) removal from aqueous solutions under various static experimental conditions. Experimental results showed that the efficiency of both metals improved by increasing their initial concentrations, adsorbent dosage pH values. The adsorption kinetic very rapid Cd since about 78% totally adsorbed amounts were removed after a contact time only 1 min. For Cu, isothermal data well fitted with pseudo-second order...

10.3390/w13020164 article EN Water 2021-01-12

In the present study, methylene blue (MB) removal from aqueous solutions via photocatalytic process using TiO2 as a catalyst in presence of external ultra-violet light (UV) was investigated. The results adsorption absence UV radiation showed that reached an equilibrium state at 60 min. experimental kinetic data were found to be well fitted by pseudo-second-order model. Furthermore, isotherm study suggested dye uptake is chemisorption with maximum retention capacity 34.0 mg/g....

10.3390/catal11070855 article EN Catalysts 2021-07-16

This paper presents an in-depth characterization of a raw industrial sludge (IS-R) and its KOH-activated biochar pyrolyzed at 750 °C (IS-KOH-B) followed by their application to remove cationic dye from aqueous solution. Materials shows that compared the IS-R, IS-KOH-B has improved structural, textural, surface chemical properties. In particular, IS-KOH-B’s BET area total pore volume are about 78 6 times higher than those found for respectively. The activated efficiently retained under wide...

10.3390/w14142206 article EN Water 2022-07-13

Olive mill wastes continue to be a management challenge due the large volumes produced, particularly their toxicity and impacts on environment. Thermal conversion through pyrolysis or hydrothermal carbonization techniques can detoxify while conserving nutrient contents. In this work, we produced up-to-date data olive waste flows in Spain, Tunisia, Greece characterized representative samples laboratory. Assays of thermal wastewaters solid were also performed understand biochar yields final...

10.3390/su12156081 article EN Sustainability 2020-07-29

In this work, significant interest has been focused on removing pharmaceutical pollutants, i.e., oxytetracycline (OTC), which was studied through adsorption onto activated carbon (ACT) produced from households or agricultural wastes under various experimental conditions. The physicochemical properties of the were investigated using multiple techniques. characterization analysis highlighted an essential concentration surface functional groups and a very developed porous structure. process...

10.5802/crchim.161 article EN cc-by Comptes Rendus Chimie 2022-03-15

In this study, we assessed the transformation of raw olive pomace into carbon-rich material using mill wastewater (OMWW) as liquid medium for hydrothermal carbonization (HTC) process. The findings were compared accordingly with use distilled water (DW), which is conventional practice. OMWW a matrix enhanced hydrochar yield, but volatile matter, fixed carbon content, and O/C H/C ratios followed decreasing trend. Furthermore, an HTC temperature 220 °C, considerably increased high heating value...

10.5802/crchim.61 article EN cc-by Comptes Rendus Chimie 2021-02-03

Lignite, as an abundant and low-cost material, was tested for lead (Pb(II)) removal from aqueous solutions under various experimental conditions both static (batch) dynamic (column) experiments. Static assays showed that Pb(II) efficiency increases with rising in its initial concentration, pH, adsorbent dosage values. Adsorption kinetic isothermal data were well fitted the pseudo-second-order Freundlich models, respectively, suggesting by lignite is mainly governed chemical processes occurs...

10.5802/crchim.71 article EN cc-by Comptes Rendus Chimie 2021-03-04

The sustainable management of loaded adsorbents with organic pollutants represents an important environmental challenge. current research work investigates the regeneration process optimization raw orange tree sawdust (ROS) methylene blue (MB) by using NaCl solutions as eluent. MB desorption was assessed in static mode under different variables, notably desorbing solution’s pH and concentration MB-loaded biomass dose. A full factorial design composed 24 experiments employed to apprehend...

10.5802/crchim.83 article EN cc-by Comptes Rendus Chimie 2021-05-19

In the present study, Methylene Blue (MB) removal from aqueous solutions by orange tree sawdust was optimized using Response Surface Methodology (RSM). The effects of intensity chemical treatment with NaOH, dose, contact time and initial MB concentration were examined in batch system. Analysis variance (ANOVA), F-test Student's t-test revealed that is most influencing parameter, followed time, dose dye concentration. An optimum treatment/adsorption point determined for a 100% yield MINITAB's...

10.1109/irec.2016.7478936 article EN 2016-03-01
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