Characterisation of activated charcoal, sawdust charcoal and rice husk charcoal as adsorbents in water treatment

Adekunle, Adebola A.; Familusi, Ayokunle O.; Badejo, Adedayo A.; Adeosun, Olayemi J; Arogundade, Suhaib A.

doi:10.14232/analecta.2020.2.19-25

Cited by 3 publications

(3 citation statements)

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“…Typical characteristics of an adsorbent [2] include high thermal stability, small pore diameters, high exposed surface area (and hence high surface capacity for adsorption), and distinct pore structure (which enables fast mass transport). It was also affirmed in the work of [3] that possession of larger proportion of Silica, Carbon, and more pores are typical features of a good adsorbent in water or waste water treatment. Moreover, most industrial adsorbents fall into any of the three categories, viz.…”

Section: Introductionmentioning

confidence: 83%

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Distinctive Features of River Sand, Beach Sand and Granite as Adsorbents in Water and Wastewater Treatment

Familusi

Adekunle

Badejo

et al. 2021

The Egyptian International Journal of Engineering Sciences and

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The essence of adsorbents in water or wastewater treatment cannot be estimated. This research paper seeks to investigate the characterisation of river sand, beach sand and granite as adsorbents for water or wastewater treatment. River sand, beach sand and granite (collected in some localities in Nigeria) were sieved, washed and later sun-dried. These three materials were taken to the laboratory for X-ray Fluorescence Analysis (XRF), Scanning Electron Microscope (SEM) and Energy Dispersive X-ray (EDX) analyses. The XRF analysis revealed that the oxides present in the selected materials include Silica (SiO 2 ), Alumina (AI 2 O 3 ), Ferric Oxide (Fe 2 O 3 ), Titanium Oxide (TiO 2 ), Calcium Oxide (CaO), some other oxides and trace elements like Barium, Copper, Chromium, Nickel, and so on. The SEM analysis shows that the materials possess interconnected pores, while the EDX analysis of the adsorbent materials revealed that the materials contain Silicon, Oxygen, Aluminium, Carbon and other elements. These distinctive features in the selected materials make them excellent materials for water or wastewater treatment.

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Section: Introductionmentioning

confidence: 83%

“…Likewise, the SEM and EDX analyses were carried out on the sample of river sand in line with the procedure highlighted by [3]. The whole SEM and EDX processes were also repeated for samples of beach sand and granite.…”

Section: Sem and Edx Analysesmentioning

confidence: 99%

Distinctive Features of River Sand, Beach Sand and Granite as Adsorbents in Water and Wastewater Treatment

Familusi

Adekunle

Badejo

et al. 2021

The Egyptian International Journal of Engineering Sciences and

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“…Residues and impurities such as ash and dust were removed from the Rice Husk using distilled water and later oven-dried at 80 ℃ for 12 hours as specified by (Lam and Zakaria, 2008). The RH was then pyrolyzed in a muffle furnace at a temperature of 550 ℃ for 30 minutes as specified by (Adekunle et al, 2020). The char produced was then air dried.…”

Section: Carbonization Processmentioning

confidence: 99%

Bio-Adsorption of Heavy Metal Ion From Water Using Activated Carbon

David,

Omotosho,

Opafola

et al. 2024

Kufa J. Eng.

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The discharge of effluent polluted with heavy metals have become a growing concern for researchers around the world. This study evaluated the removal efficiency of commercial activated carbon and rice husk activated carbon as adsorbents for the removal of copper ion in water. A nominal size of 1 mm was obtained after sieving the Rice Husk, washed with distilled water, dried in an oven t at 80 ℃ for 12 hours, and pyrolyzed in a furnace at 550 ℃ for 30 minutes. The chars produced were later air-dried and then activated with lemon juice. The Rice Husk Activated Carbon (RHAC) and Commercial Activated Carbon (CAC) purchased from the market were both subjected to the following analyses: bulk density, X-ray Fluorescence (XRF), Brunauer–Emmett–Teller (BET), Scanning Electron Microscope (SEM) and Energy Dispersive X-ray (EDX) in order to characterise the adsorbents and to understand their suitability for the removal of copper ion in water. One of the properties of an adsorbent is large pores which is exhibited by the activated carbons as revealed by the SEM analysis. Likewise, the XRF and EDX analyses confirmed that the adsorbents had larger proportion of Silica (50.1 – 50.25%), Carbon (60.06 – 84.87 wt .%) and Oxygen (15.13 – 21.60 wt. %) which is a property of a good adsorbent. BET analysis showed that the surface areas of the rice husk activated carbon and the commercial activated carbon were 998.35 and 1208.25 m2/g, respectively. The bulk densities of the rice husk activated carbon and the commercial activated carbon were 0.3325 and 0.2812 g/cm3, respectively. The maximum removal efficiency using RHAC was observed at 60 ℃ and 120 minutes at 83.96 and 89.21 %, respectively while for CAC the maximum removal efficiency was observed at 60 ℃ at 84.61 % and 30 minutes at 83.3 %. Initial concentration of 20 mg/l was observed to have the highest removal efficiency for the two activated carbon specimens. The modelled effect of initial concentration, temperature and contact time on removal efficiency yielded R2 values of 1, 0.918; 1,1 and 1,1 respectively for the CAC and RHAC.

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Role of structure of bio-based raw materials for their conversion to carbon nanostructures

Munishwar,

Farooq,

Birmod

2024

Bio-Derived Carbon Nanostructures

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Characterisation of activated charcoal, sawdust charcoal and rice husk charcoal as adsorbents in water treatment

Cited by 3 publications

References 1 publication

Distinctive Features of River Sand, Beach Sand and Granite as Adsorbents in Water and Wastewater Treatment

Distinctive Features of River Sand, Beach Sand and Granite as Adsorbents in Water and Wastewater Treatment

Bio-Adsorption of Heavy Metal Ion From Water Using Activated Carbon

Role of structure of bio-based raw materials for their conversion to carbon nanostructures

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