Upgrading of agro-industrial green biomass residues from chocolate industry for adsorption process: diffusion and mechanistic insights

Hamadi, Amel; Yeddou-Mezenner, Nacera; Lounis, A.; Ali, Rehab M.; Hamad, Hesham

doi:10.1007/s13197-020-04622-z

Cited by 29 publications

(17 citation statements)

References 32 publications

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“…The modified phase of equilibrium data, which are applied to Langmuir isotherm Eq.6 and Freundlich isotherms Eq.7, are presented in Fig. (13)(14). Where: qm: the saturation monolayer adsorption quantity (mg. g −1 ).…”

Section: Isotherm Studymentioning

confidence: 99%

“…These reasons have encouraged scientists to search on cheaper source for activated carbon. The massive amount of agricultural by-product such as Theobroma cacao [13], rise straw [7], date stones/pits [14] , palm fibers [15], orange peel [16], pomegranate peels [3], and Peanut hull [17] make them one [18] of the critical starting material for activated carbon (AC) production. Activated carbon could be produced theoretically from any carbonaceous material with a considerable amount of elemental carbon [19] [5] Bagasse could be considered one of the most significant agricultural waste products as it has produced annually in large quantities [15].…”

Section: Introductionmentioning

confidence: 99%

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Adsorption studies of cationic dye on raw and modified sugarcane bagasse from aqueous solutions: Kinetic and Isotherm aspects

2020

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Adsorbent materials for industrial and environmental applications are the goal of seeking research under active investigation now. Activated carbons could be obtained from the organic material after been chemically or physically treated. In Egypt, Sugarcane bagasse could be considered one of the agricultural wastes that frequently produced. In this study, the low-cost adsorbent was prepared from raw Bagasse. The batch experiment was set up to determine the effect of using the agriculture waste (sugarcane bagasse) without any modification and activated it chemically and physically on methylene blue removal. The influence of adsorbent amount, agitation rate, and temperature on the dye removal were studied. The result shows that the percentage of dye removal reached up to %99.6 when the initial dye concentration was 15 ppm, and the amount of sorbent (chemically activated) was 0.3 g at room temperature. The adsorption kinetics and isotherms for the removal of methylene blue were represented with different models. It was detected that Langmuir and Freundlich's equations have the R 2 value closed to unity, and the maximum adsorption calculated capacity was 2.2 mg/g when the initial dye concentration was 15 ppm. Furthermore, pseudo-first-order and pseudo-second-order were fitted to examine the adsorption kinetic, and a pseudo-secondorder calculated the highest adsorption rate for the raw bagasse (0.59446 g/mg.min).

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Section: Isotherm Studymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adsorption studies of cationic dye on raw and modified sugarcane bagasse from aqueous solutions: Kinetic and Isotherm aspects

2020

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“…In pure ILs, the skeleton stretching vibration of the imidazolium ring can be assigned by two peaks at 1580 and 1470 cm -1 , which provide clear evidence for the successfully prepared products (S-1 to S-4) [21]. The total incorporation of ILs with alkyl groups and the formation of new functional groups The change in intensity of sample S-1 between 2800 and 3000 cm -1 indicated the presence of several alkyl groups [22]. The conjugated strong peaks at 1580 and 1633 cm -1 were caused by the imidazolium ring's symmetric C=N and symmetric -C=C-bonds, respectively, indicating the presence of imidazolium cations [15].…”

Section: Resultsmentioning

confidence: 89%

On the Behavior of Newly Synthesized Functionalized Imidazolium-Based Ionic Liquids for Highly Efficient Extraction and Separation of Pirimicarb from Orchard Real Wastewater

Zulfiqar

Rafique

Akhtar

et al. 2022

Adsorption Science & Technology

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The presence of pirimicarb compounds as pollutants in orchard wastewater has sparked rising worries about their detrimental impacts on the ecosystem and human health, and their removal is critical for Pakistan’s aquatic environment. It not only contaminates fruit, but it also leaches into the soil and contaminates groundwater. However, there is little data on the effective removal of pirimicarb from orchard wastewater. The main purpose of this study is to create a novel family of functionalized imidazolium-based ionic liquids (ILs) using a simple chemical process, which will be utilized for the first time to extract pirimicarb from orchard wastewater in an efficient, cost-effective, and environmentally acceptable manner. FTIR, SEM, XRD, TGA, BET, and 1H NMR spectroscopy were used to characterize the functionalized samples. The impact of the IL substituent on the separation capacity was studied. In addition, the extraction and separation of pirimicarb from orchard wastewater were investigated under a variety of conditions (time, concentration, and temperature) in order to better understand the adsorption behaviors of distinct ILs in an aqueous solution. The adsorption equilibrium was reached in 30 minutes, and the maximum removal of pirimicarb was achieved utilizing the synthesized [C2im][C3H6NH2]Br-, according to the data. The pseudo-first-order model and the Langmuir model both suit well with the adsorption mechanism of pirimicarb with very good adsorptive capacities. Thermodynamic analyses indicated spontaneous, endothermic, and entropy-driven adsorption processes. The synthesized imidazolium-based ILs have good regeneration capability and recycling at least for six adsorption-desorption runs and have also been used to successfully detect pirimicarb orchard wastewater samples. The superior safety of the proposed method nominates it as a promising future strategy for pollution prevention. Consequently, this work has proven that the pirimicarb adsorption to various imidazolium-based ILs was dependent on the structures of the produced imidazolium-based ILs, which specifies its potential for practical applications in water pollutant removal and environmental remediation.

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“…It is worth noticing that this peak disappeared in the TPZ sample, which indicates significant lignin and/or hemicellulose removal. The peak at 2349 cm −1 that appeared in all samples is related to the -OH stretching vibration mode of the hydroxyl functional groups [40,41]. Taking this into account, these bands are more intense for the samples treated by ZnCl 2 alone, indicating the introduction of more oxygen-functional groups in TPZ and CZ.…”

Section: Surface Functional Groupsmentioning

confidence: 86%

Role of Combined Na2HPO4 and ZnCl2 in the Unprecedented Catalysis of the Sequential Pretreatment of Sustainable Agricultural and Agro-Industrial Wastes in Boosting Bioethanol Production

Elyamny

Hamdy

Ali

et al. 2022

IJMS

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Improper lignocellulosic waste disposal causes severe environmental pollution and health damage. Corn Stover (CS), agricultural, and aseptic packaging, Tetra Pak (TP) cartons, agro-industrial, are two examples of sustainable wastes that are rich in carbohydrate materials and may be used to produce valuable by-products. In addition, attempts were made to enhance cellulose fractionation and improve enzymatic saccharification. In this regard, these two wastes were efficiently employed as substrates for bioethanol production. This research demonstrates the effect of disodium hydrogen phosphate (Na2HPO4) and zinc chloride (ZnCl2) (NZ) as a new catalyst on the development of the sequential pretreatment strategy in the noticeable enzymatic hydrolysis. Physico-chemical changes of the native and the pretreated sustainable wastes were evaluated by compositional analysis, scanning electron microscopy (SEM), X-ray diffractometry (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). These investigations showed major structural changes after the optimized sequential pretreatment. This pretreatment not only influences the delignification process, but also affects the functionalization of cellulose chemical structure. NZ released a higher glucose concentration (328.8 and 996.8 mg/dl) than that of ZnCl2 (Z), which released 203.8 and 846.8 mg/dl from CS and TP, respectively. This work led to the production of about 500 mg/dl of ethanol, which is promising and a competitor to other studies. These findings contribute to increasing the versatility in the reuse of agricultural and agro-industrial wastes to promote interaction areas of pollution prevention, industrialization, and clean energy production, to attain the keys of sustainable development goals.

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Upgrading of agro-industrial green biomass residues from chocolate industry for adsorption process: diffusion and mechanistic insights

Cited by 29 publications

References 32 publications

Adsorption studies of cationic dye on raw and modified sugarcane bagasse from aqueous solutions: Kinetic and Isotherm aspects

Adsorption studies of cationic dye on raw and modified sugarcane bagasse from aqueous solutions: Kinetic and Isotherm aspects

On the Behavior of Newly Synthesized Functionalized Imidazolium-Based Ionic Liquids for Highly Efficient Extraction and Separation of Pirimicarb from Orchard Real Wastewater

Role of Combined Na2HPO4 and ZnCl2 in the Unprecedented Catalysis of the Sequential Pretreatment of Sustainable Agricultural and Agro-Industrial Wastes in Boosting Bioethanol Production

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