The performance of activated carbons from sugarcane bagasse, babassu, and coconut shells in removing residual chlorine

Jaguaribe, Emerson Freitas; Medeiros, Lorena Lucena de; Barreto, Matheus C.; Araujo, Ludivine Afonso de

doi:10.1590/s0104-66322005000100005

Cited by 83 publications

(61 citation statements)

References 8 publications

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“…To test the accuracy of the method, we used experimental and literature data. The literature data were obtained from activated carbons produced from olive-waste cakes, 5 tree seed husks, 8 bituminous coal, wood, 9 Eucalyptus bark, 10 rubberwood sawdust, 11 waste newsprint, 12 sugarcane bagasse, 13,14 babassu, coconut shells, 14 sugarcane residues, 7 olive stones, 15 petroleum pitch, 16 shells and fruit pits, 17,18 fruit seeds 18 and knitted fabrics, 19 besides commercial activated carbon. 20 The experimental data were obtained using activated carbons produced in our laboratory from spent coffee grounds, 21 bean husks 22 and a commercial sample.…”

Section: Experimental Samplesmentioning

confidence: 99%

Estimation of surface area and pore volume of activated carbons by methylene blue and iodine numbers

Nunes¹,

Guerreiro²

2011

Quím. Nova

166

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Data of methylene blue number and iodine number of activated carbons samples were calibrated against the respective surface area, micropore volume and total pore volume using multiple regression. The models obtained from the calibrations were used in predicting these physical properties of a test group of activated carbon samples produced from several raw materials. In all cases, the predicted values were in good agreement with the expected values. The method allows extracting more information from the methylene blue and iodine adsorption studies than normally obtained with this type of material.

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Section: Experimental Samplesmentioning

confidence: 99%

Estimation of surface area and pore volume of activated carbons by methylene blue and iodine numbers

Nunes¹,

Guerreiro²

2011

Quím. Nova

166

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“…The results show that torrefaction had no effect on the specific surface area of babassu shells and that only activation at high temperatures (>800°C) led to an increase in BET surface area (Jaguaribe et al 2005). Babassu activated at 900°C (Jaguaribe et al 2005) 874…”

Section: Specific Surface Area and Pore Size Distributionmentioning

confidence: 91%

“…Bagasse activated at 800°C (Jaguaribe et al 2005) 806 Figure 8 gives the maximum load withstood by the babassu samples depending on the thermal treatment and sample orientation. The control sample displayed a very great statistically significant difference depending on its orientation (L or T).…”

Section: Specific Surface Area and Pore Size Distributionmentioning

confidence: 99%

Torrefaction of Babassu: A Potential Utilization Pathway

Rousset¹,

Aguiar²,

Volle³

et al. 2012

BioResources

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Because of its energy and mechanical properties, babassu shell is a promising energy crop for the future. Its production potential in Brazil is estimated at 6.8 million tons of fruits/year. The aim of this study was to evaluate the effects of torrefaction on the main energy and mechanical properties of Orbignya speciosa (Babassu). Three different torrefaction temperatures (220, 250, and 280°C) and two different durations (15 and 30 minutes) were employed. The influence of sample orientation was taken into account. The results showed that the energy properties of babassu are greatly improved during heat treatment. Torrefaction also led to uniform resistance to babassu shell compression. It was found that low temperature treatment was sufficient to envisage grinding and babassu use in pulverulent form.

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“…Activated carbons can be produced from a number of lignocellulosic precursor materials including: nuts olive, palm, peach and apricot [4,5], sawdust [6] and nut shells [7]. They are exposed to different activation methods in order to achieve a material with better adsorbent properties.…”

Section: Introductionmentioning

confidence: 99%

Elaboration and characterization of a new activated carbon obtained from oregano residue: Application in environmental field

Oumam

Abourriche³

et al. 2013

MATEC Web of Conferences

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Abstract. This study focuses on the valorization of extraction residues of medicinal plants which represent approximately 80% of the gross weight of the plant. In this context we proceeded to the transformation of "marc oregano" to a material adsorbent type activated carbon. The oregano marc, obtained after extraction of essential oils and organic compounds, has undergone a chemical activation using the phosphoric acid 85% (H 3 PO 4 ). It is well known as precursors of lignocellulosic activating agent, allows the development of a large porosity in the activated material. The activated product has subsequently underwent heat treatment in the temperature range from 200 to 350 • C. The optimum temperature for development was set at 300 • C. The results obtained showed that the adsorbent material O 300 has developed the interesting textural properties. It is an adsorbent material like activated carbon, which presents, according to the BET method, a specific surface of 1200 m 2 · g −1 (specific surface area of commercial activated carbon is of about 905 m 2 · g −1 ). The application of adsorbent material developed O 300 in microbial decontamination of urban waste water, has revealed its effectiveness and its important adsorptive properties against pathogens pollutants from wastewater.

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The performance of activated carbons from sugarcane bagasse, babassu, and coconut shells in removing residual chlorine

Cited by 83 publications

References 8 publications

Estimation of surface area and pore volume of activated carbons by methylene blue and iodine numbers

Estimation of surface area and pore volume of activated carbons by methylene blue and iodine numbers

Torrefaction of Babassu: A Potential Utilization Pathway

Elaboration and characterization of a new activated carbon obtained from oregano residue: Application in environmental field

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