Effective treatment and the valorization of solid and liquid toxic discharges from olive oil industries, for sustainable and clean production of bio-coal

Mechnou, Issam; Mourtah, I.; Raji, Yosra; Cherif, Abdelmjid; Lebrun, Laurent; Hlaı̈bi, Miloudi

doi:10.1016/j.jclepro.2020.125649

Cited by 19 publications

(4 citation statements)

References 46 publications

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“…This result compares favorably with the results of previous work by Santoset [40] and Myek [41], who found nanoporous carbon mass yields from Moringa oleifera ranging from 10 to 30% using flash pyrolysis at very high temperature and with a long pyrolysis time. According to our previous study [16], the original method based on the technique of direct pyrolysis with thermal shock at high temperature (oven preheated to 900 • C), with a short duration of pyrolysis and at atmospheric pressure, allows to increase the yield to ensure a fast conversion, quickly transform the biomass into carbon and avoid the formation of byproducts and emissions while optimizing the product performance [16].…”

Section: Discussionmentioning

confidence: 99%

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Efficient Adsorption of Methyl Orange on Nanoporous Carbon from Agricultural Wastes: Characterization, Kinetics, Thermodynamics, Regeneration and Adsorption Mechanism

et al. 2022

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Nanoporous carbon derived from Moringa oleifera seed waste was synthesized by an original process of flash pyrolysis followed by zinc chloride impregnation. The N2-adsorption–desorption results of the optimized sample revealed a BET surface area of 699.6 m2/g and a pore size of 2 nm. It was evaluated for the adsorption of a mono azo dye, methyl orange (MeO), from aqueous solution. Four isothermal models (Langmuir, Freundlich, Dubinin–Radushkevic and Temkin) were applied to fit the experimental data. The results revealed that Langmuir is the most appropriate isothermal adsorption model to describe the adsorption process (X2 = 1.16); with an adsorption capacity 367.83 mg/g at 298 K, the interaction of MeO dye with the nanoporous carbon surface is a localized monolayer adsorption. The adsorption kinetics was consistent with the pseudo-second-order model and found to correlate well with the experimental data (X2 = 9.06). The thermodynamic study revealed a spontaneous and endothermic adsorption process, and the substances are adsorbed in a random manner. The desorption of MeO dye from MOC-ZnCl2 by sodium hydroxide solution was achieved to a level of about 84%, and the nanoporous carbon was recycled and reused at the fifth cycle. This work demonstrates that MOC-Zncl2 could be employed as an alternative to commercially available activated carbon in the removal of dyes from wastewater.

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Section: Discussionmentioning

confidence: 99%

“…These husks are one of the most readily available biomasses and are generally treated as waste. The nanoporous carbon was prepared by the original method of short-duration flash thermal pyrolysis [16], followed by zinc chloride (ZnCl 2 ) impregnation. The efficiency of the nanoporous carbon was tested for removing the anionic dye MeO.…”

Section: Introductionmentioning

confidence: 99%

Efficient Adsorption of Methyl Orange on Nanoporous Carbon from Agricultural Wastes: Characterization, Kinetics, Thermodynamics, Regeneration and Adsorption Mechanism

et al. 2022

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“…The influence study of activated carbon on the evolution of P, J 0 , D*, and K ass parameters relating to the facilitated extraction processes of paracetamol through the developed membrane has been performed at 308 K by adding in the receiving phase 0.2, 0.3, and 0.5 g of the active carbon developed in our laboratory (Table 3). 38 It is noticeable that the permeability and initial flux values were proportional to the mass of activated carbon introduced into the receiving phase. As the mass of activated carbon increased, the values of P and J 0 also increased, so it is concluded that the presence of activated carbon improves the membrane performance.…”

Section: Effects Of Activatedmentioning

confidence: 99%

Efficient and Original Technique for the Optimization and Intensification of Membrane Processes Relating to the Treatment and Recovery of Discharges Loaded with the Emerging Pollutant Paracetamol

Oukkass

Mechnou

Yaakouby

et al. 2022

Ind. Eng. Chem. Res.

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Paracetamol (acetaminophen) is one of the most commonly used pain relievers and fever reducers due to the high stability, solubility, and hydrophilicity; it is mainly detected in pharmaceutical releases. Its presence in aquatic systems is a serious ecological concern. The pharmaceutical industries are using several technologies for separation, extraction, and control such as membrane processes because of their numerous advantages. In the present work, a polymer inclusion membrane containing Tween 20 (TW20) as an extractive agent was fabricated for the treatment and recovery of effluents loaded with emerging pollutants (paracetamol). After characterization of the morphology and porosity, the membrane was adopted to carry out the extraction and recovery processes of paracetamol, assisted by activated carbon. Kinetic and thermodynamic models were applied to determine the values of permeability ( P ), initial flux ( J 0 ), association constant ( K ass ), and diffusion apparent coefficient ( D*) parameters. Subsequently, activation parameters energy ( E a ), association and dissociation enthalpies (ΔH # ass and ΔH # dis , respectively), and entropy (ΔS # ) were measured. For this original technique, the effects of activated carbon on the evolution of processes carried out across the membrane have been investigated and indicate a significant optimization and intensification of the membrane performance and total paracetamol extraction rate. In addition, this technique is clean and does not affect the structure or the stability of the membrane.

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“…In this section, the influence of the initial concentration of substrate C 0 (0.001M, 0.0005M, 0.00025M, 0.00012M) on the evolution of the different parameters related to the facilitated extraction processes of BM through the PIM membrane (PVDF-TW20) containing TW20 as extractant, under similar operating conditions (pH=3, T=298 K, support: PVDF) and then the influence of activated carbon on the same parameters and condition was examined by adding 0.2g of activated carbon in the receiver phase. Figure 4 show the evolution of the kinetic function -Ln (C 0 -2Cr) = f(t) [14].…”

Section: Effect Of Initial Substrate Concentration C 0 Without and Wi...mentioning

confidence: 99%

Activated Carbon to Improve the Performance of Membrane Processes for the Extraction and Elimination of Methylene Blue Pollutant

Hlaı̈bi¹

2022

TTEFT

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In the last few years, membrane technologies have experienced a considerable growth, due to their numerous uses and their advantages over other conventional techniques. The membrane processes present today an important research topic, especially affinity polymer membranes, very adapted to oriented processes. Methylene blue is one of the most widely used dyes in various fields such as chemistry, medicine, dentistry and the dye industry. Our objective is to develop a polymeric inclusion membrane for methylene blue extraction and recovery processes, assisted by activated carbon. We developed a membrane based on a mixed polymer support, polyvinylidene fluoride (PVDF), polyvinylpyrrolidone (PVP), and the amphiphilic molecule Tween 20 (TW20) as extractive agent (EA). In order to quantify the performance of developed membrane, macroscopic parameters such as initial flux J 0 , and permeability P, as well as microscopic parameters such as association constant K ass , and diffusion apparent coefficient D*, were determined. Then, we determined the activation parameters, energy (E a ), enthalpy (ΔH # ass ), and entropy (ΔS # ). Finally, we studied the effect of activated carbon on the evolution of processes carried out and the performance of the membrane, and we observe a very clear improvement. The obtained results indicate that the membrane developed for the studied processes has a real potential for the techniques of separation and pre concentration.

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Effective treatment and the valorization of solid and liquid toxic discharges from olive oil industries, for sustainable and clean production of bio-coal

Cited by 19 publications

References 46 publications

Efficient Adsorption of Methyl Orange on Nanoporous Carbon from Agricultural Wastes: Characterization, Kinetics, Thermodynamics, Regeneration and Adsorption Mechanism

Efficient Adsorption of Methyl Orange on Nanoporous Carbon from Agricultural Wastes: Characterization, Kinetics, Thermodynamics, Regeneration and Adsorption Mechanism

Efficient and Original Technique for the Optimization and Intensification of Membrane Processes Relating to the Treatment and Recovery of Discharges Loaded with the Emerging Pollutant Paracetamol

Activated Carbon to Improve the Performance of Membrane Processes for the Extraction and Elimination of Methylene Blue Pollutant

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