Adsorption isotherme de l’acide acétique par des charbons d’origine végétale

Avom, Jérôme; Mbadcam, JK; Matip, Mrl; Germain, Patrick

doi:10.4314/ajst.v2i2.44663

Cited by 12 publications

(13 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The iodine values obtained in this work are higher than those obtained by Avom et al, (2002) on the production of active carbons based on palm diet rounds with a maximum value of 111 mg/g. They are also higher than those obtained by Enaime et al, (2017) on the production of activated carbons from olive wastes whose maximum value is 435 mg/g, and by Soleimani and Kaghazchi (2014) on the production of adsorbents at base of several agricultural substrates with a maximum value of 450 mg/g under activation conditions close to ours.…”

Section: Porosity Of Adsorbentscontrasting

confidence: 71%

Discolouration Studies of the Slaughterhouse Effluent by Adsorption on Two Adsorbents Made from Species Sawdust of Triplochiton scleroxilon and Milicia excelsa

Djonga

Noubissié

Inna

et al. 2019

EMSD

View full text Add to dashboard Cite

The treatment of slaughterhouse effluents is a problem for our municipalities and residents. The objective of this work is to contribute to the protection of the environment through a test treatment of the effluent from the slaughterhouse of cows by adsorption on adsorbents made from sawdust. To achieve this, two adsorbents were produced based on sawdust of Ayous (Triplochiton scleroxilon) and Iroko (Milicia excelsa), and were characterized. The effluent was sampled in a Ngaoundéré slaughterhouse and then characterized in its turn. Finally, discolouration tests by adsorption of this effluent were carried out. At the end of this work, it appears that both adsorbents produced had an acidic character. They are micro and macroporous with specific surface areas from 14.77 m2/g to 69.56 m2/g for Iroko and Ayous, respectively. The effluent from the slaughterhouse of cows sampled in the city of Ngaoundéré is highly conductive and turbid with an organic matter evaluated at 4.15 ± 0.18%. The adsorbent based on sawdust of Ayous is more effective, globally allowed the reduction of more than 70% of all the organic and inorganic loads of the slaughterhouse effluent after treatment. A discolouration rate estimated at more than 90% obtained at the scale of the laboratory, these adsorbents are effective for the treatment of the slaughterhouse effluents. These two adsorbents can therefore be used for the treatment of slaughterhouse effluent in any country in the world.

show abstract

Section: Porosity Of Adsorbentscontrasting

confidence: 71%

Discolouration Studies of the Slaughterhouse Effluent by Adsorption on Two Adsorbents Made from Species Sawdust of Triplochiton scleroxilon and Milicia excelsa

Djonga

Noubissié

Inna

et al. 2019

EMSD

View full text Add to dashboard Cite

show abstract

“…The adsorption of acetic acid is used as easy, safe and economical method to determine the specific surface area of prepared activated carbon [19,20]. In this study, 20 mL of acetic acid with concentrations ranging from 0.01 M to 0.1 M are placed into flasks and 0.1 g of activated carbon is added in each flask under stirring at 200 rpm till time t (time to be optimized).…”

Section: Chemical Characterization Of Activated Carbon and Surface Prmentioning

confidence: 99%

Removal of imidacloprid using activated carbon produced from ricinodendron heudelotii shells

Urbain¹,

Fodjo²,

Ardjouma³

et al. 2018

Bull. Chem. Soc. Eth.

View full text Add to dashboard Cite

ABSTRACT. In this study, Ricinodendron heudelotii (akpi) shells are used as precursor to prepare activated carbon via chemical activation using phosphoric acid. The characterization of the obtained activated carbon is performed using X-ray diffraction (XRD), Boehm titration method and adsorption of acetic acid. The results show that the prepared activated carbon has a microstructure and a higher specific surface area (1179 m 2 /g), suggesting that the acid treatment has a significant positive influence on its sorption properties. The maximum adsorption capacity and pollutant elimination efficiency are found to be 43.48 mg/g and 90%, respectively. These results suggest that this low cost agent is an efficient tool to remove organic pollutants especially imidacloprid from wastewater.

show abstract

“…The various mixtures were filtered after 60 min of agitation. The residual concentration was determined by volumetric titration using sodium hydroxyde [11]. Specific surfaces S f (m 2 /g) were calculated using equation 1 [11]: = (1) where N = 6.02 x 10 23 mol -1 (Avogadro number), S A = 21Å 2 , Q m (mg/g) is the maximum capacity of acid adsorbed.…”

Section: Characterization Of Materialsmentioning

confidence: 99%

Biosorption of amaranth red in aqueous solution onto treated and untreated lignocellulosic materials (pineapple peelings and coconut shells)

Ndifor-Angwafor¹,

Tiotsop²,

Tchuifon³

et al. 2017

JMES

View full text Add to dashboard Cite

The removal of amaranth red dye from aqueous solution by untreated and treated pineapple peelings and coconut shells with phosphoric acid was studied in batch mode at room temperature. The study highlighted several parameters such as the contact time, the mass of the adsorbent, the pH of the solution, and the initial concentration of the dye. The results showed that the removal of dyes by the bioadsorbents depended on the pH and the initial concentration of the adsorbate. The adsorption capacity increased with increasing amaranth red dye concentration and the mass of the bioadsorbent. It was also established that maximum adsorption took place at pH = 2 for different adsorbents. The treated raw materials have greater surface area than the untreated materials. In order to deduce the adsorption mechanism, four simplified kinetic models were investigated. The kinetic data were well represented by the pseudo second order kinetic model giving high correlation coefficients R² values for all the biosorbents suggesting that chemisorption was the rate determining step. An equilibrium study of the adsorption process also showed that the Langmuir model best described the adsorption on all the biosorbents. The values of energy obtained from the Temkin isothermare also positive, this shows that the adsorption process isexothermic. These results indicate that pineapple peelings and coconut shells have a high potential as adsorbents for removing amaranth red dye from aqueous solution

show abstract

Adsorption isotherme de l’acide acétique par des charbons d’origine végétale

Cited by 12 publications

References 2 publications

Discolouration Studies of the Slaughterhouse Effluent by Adsorption on Two Adsorbents Made from Species Sawdust of Triplochiton scleroxilon and Milicia excelsa

Discolouration Studies of the Slaughterhouse Effluent by Adsorption on Two Adsorbents Made from Species Sawdust of Triplochiton scleroxilon and Milicia excelsa

Removal of imidacloprid using activated carbon produced from ricinodendron heudelotii shells

Biosorption of amaranth red in aqueous solution onto treated and untreated lignocellulosic materials (pineapple peelings and coconut shells)

Contact Info

Product

Resources

About