Synthesis of activated carbon based on apricot stones for wastewater treatment

Bélaroui, Karima; Seghier, Abdelkarim; Hadjel, Mohammed

doi:10.1080/19443994.2013.789404

Cited by 18 publications

(3 citation statements)

References 31 publications

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“…The following activation methods were used: vapor treatment, activation in nitrogen atmosphere, concentrated sulfuric acid treatment and mixed activation. It was found that the obtained activated carbons had a high sorption capacity for this dye of 243.9–294.1 mg/g [ 87 ].…”

Section: Resultsmentioning

confidence: 99%

Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

et al. 2022

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For the first time, a comprehensive review of the literature data on the use of apricot (Prunus armeniaca) biomass components as a sorption material for the treatment of wastewater and environmental water from various pollutants is carried out in the present study. In addition to a comprehensive analysis of contemporary studies, the current work carried out its own microstructural and energy dispersive studies. It shows that apricot kernel shell is a promising raw material for obtaining sorption materials that can be used to extract various pollutants from aqueous media. The parameters of sorption interaction are presented, at which the highest rate of removal of pollutants was achieved. It is shown that the sorption capacity of apricot biomass components can be increased by modifying it with various chemical reagents, as well as other physical and physicochemical methods. We reveal that most publications consider the use of the latter as a raw material for the production of activated carbons. It is established that the surface area and total pore space of activated carbons from apricot kernel shells depend on the modes of carbonization and activation. It is shown that activated carbons are effective adsorbents for removing various pollutants (metal ions, dyes, oil and oil products) from aqueous media. It was found that the adsorption isotherms of pollutants in most cases are best described by the Langmuir and Freundlich models, and the process kinetics is most often described by the pseudo-second-order model. The possibility of improving the sorption characteristics of apricot biomass during chemical or physicochemical treatment is also shown.

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Section: Resultsmentioning

confidence: 99%

Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

et al. 2022

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“…Because commercially available adsorbents are more expensive and have less effective adsorption, scientists are more interested in adopting bio-sorbents. Researchers have employed apricot stones [4], oil palm shells [5], vetia peruviana [6], mahogany saw dust [7], rice husk [8], and other biomaterials for color adsorption from aqueous media. A flowering plant known as Nerium Oleander (NO) with needle-like leaves can be found in tropical climates.…”

Section: Introductionmentioning

confidence: 99%

Study of Different Parameters on Adsorption of Methylene Blue Dye From Aqueous Solution Using Nerium Oleander as Bioadsorbent

Tirole,

Dwivedi,

Chourey

2023

JASR

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A Bio adsorbent nerium oleander has been used as a low cost adsorbent and its efficiency in methylene blue adsorptionwas comparatively greater than other adsorbent. The influence of various factors such as adsorbent dose, adsorbateconcentration, particle size, temperature, contact time and pH was studied. The adsorption of the dye over bioadsorbent was found to follow Langmuir and Freundlich adsorption isotherm models. Based on these models, varioususeful thermodynamic parameters have been evaluated. The adsorption of methylene blue over nerium oleander followsfirst order kinetics and the rate constants for the adsorption processes decreases.

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“…In this work, owing to improve the high added values and solve the environmental pollution problems of the waste EO and discarded CB, the discarded CB was used as a raw material to prepare ACs for the decolorization of waste EO. Meanwhile, the decolorization performance of waste EO by ACs is not only related to the selection of raw materials [17], pore structure, and surface chemistry of AC [18], but also related to decolorization process conditions [19]. Thus, to explore the preparation strategies of CB-derived AC and optimal adsorption decolorization process of waste EO, three typical activation methods (H 3 PO 4 , KOH, CO 2 ) for AC preparation were to follow.…”

Section: Introductionmentioning

confidence: 99%

Preparation of discarded cigarette butt-derived activated carbon and its decolorization for waste edible oils

Luo

et al. 2021

Biomass Conv. Bioref.

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In order to improve the high added values and solve the environmental pollution problems of the waste edible oil (EO) and discarded cigarette butt (CB), the CB-derived activated carbons (ACs) were prepared by H 3 PO 4 , KOH, and CO 2 activation methods and used as an adsorbent for the decolorization of waste EO. The CB-AC@H 3 PO 4 prepared by H 3 PO 4 activation method had the high surface area of 1423 m 2 /g, oxygen contents of 11.24%, and yield of 14.11%, and exhibited better decolorization performance for EO than the CB-AC@KOH and CB-AC@CO 2 . The optimal decolorization process parameters of CB-AC@H 3 PO 4 based on the orthogonal experimental results were the AC contents of 8%, the decolorization temperature of 90 °C, and the decolorization time of 30 min, which resulted in the corresponding decolorization rate of 83%. Therefore, these provided one application case for turning waste into wealth, energy conservation, and emission reduction.

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Synthesis of activated carbon based on apricot stones for wastewater treatment

Cited by 18 publications

References 31 publications

Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

Removing Pollutants from Sewage Waters with Ground Apricot Kernel Shell Material

Study of Different Parameters on Adsorption of Methylene Blue Dye From Aqueous Solution Using Nerium Oleander as Bioadsorbent

Preparation of discarded cigarette butt-derived activated carbon and its decolorization for waste edible oils

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