Applications of Brazilian pine-fruit shell in natural and carbonized forms as adsorbents to removal of methylene blue from aqueous solutions—Kinetic and equilibrium study

Royer, Betina; Cardoso, Natali F.; Lima, Éder C.; Vaghetti, Júlio C.P.; Simon, Nathália Marcolin; Calvete, Tatiana; Veses, Renato Cataluña

doi:10.1016/j.jhazmat.2008.09.028

Cited by 296 publications

(148 citation statements)

References 69 publications

(100 reference statements)

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“…This observation makes it possible to conclude that the adsorption mechanism is based on electrostatic interactions between the negatively surface charged adsorbent and positively charged MB and GV dyes [26,29]. A similar tendency was noticed by Uddin et al [30] for the adsorption of MB onto tea waste at optimum pH of 8.0, and Royer et al [28] for the adsorption of MB onto Brazilian pine-fruit shell and carbonized forms at an optimum pH of 8.5.…”

Section: Effect Of Phsupporting

confidence: 72%

“…Adsorption of MB and GV onto SCB 2 as function of pH is shown in Fig. 3 [28], and consequently higher amounts of MB and GV are adsorbed by SCB 2. This observation makes it possible to conclude that the adsorption mechanism is based on electrostatic interactions between the negatively surface charged adsorbent and positively charged MB and GV dyes [26,29].…”

Section: Effect Of Phmentioning

confidence: 98%

“…Step that adsorption processes involve more than one single kinetic stage [28]. The first linear portion (sharpest portion) was attributed to film diffusion, i.e.…”

Section: Mb Gvmentioning

confidence: 99%

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Application of succinylated sugarcane bagasse as adsorbent to remove methylene blue and gentian violet from aqueous solutions – Kinetic and equilibrium studies

et al. 2012

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Section: Effect Of Phsupporting

confidence: 72%

Section: Effect Of Phmentioning

confidence: 98%

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Application of succinylated sugarcane bagasse as adsorbent to remove methylene blue and gentian violet from aqueous solutions – Kinetic and equilibrium studies

et al. 2012

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“…Several authors (Lima et al, 2007;2008;Royer et al, 2009;Calvete et al, 2009; studied the use of the pinhão coat as an alternative for promoting the adsorption of metal ions and dyes, potentially carcinogenic, from aqueous solutions in the treatment of industrial effluents. All studies argue that the pinhão coat can be a powerful and inexpensive tool for removing heavy metals and dyes in the treatment of effluents from tannery and metallurgical industries.…”

Section: The Pinhão Coatmentioning

confidence: 99%

Biological activities and chemical constituents of Araucaria angustifolia : An effort to recover a species threatened by extinction

Peralta

Koehnlein

Oliveira

et al. 2016

Trends in Food Science & Technology

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“…Because in the study of absorption kinetics, the mechanisms of absorption have shown with time (18,19). Table 4 shows Langmuir and Freundlich models' parameters at different concentrations.…”

Section: Adsorption Isothermmentioning

confidence: 99%

Using Modified Concrete for Removing Chromium From Wastewater

Asrari

Nia

2016

Jundishapur J Helath Sci

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Background: Annual large amounts of wastewater can be entered into the environment from domestic, agricultural, and industrial sources that contain high concentrations of chemical materials and heavy metals. Chromium (Cr) is one of the most important environmental pollutants, which can cause pollution of water resources and disorder in the metabolic activities of living organisms. Objectives: In this study, we used the alteration in the concrete structure by iron oxide nanoparticles and rice husk ash (RHA) to remove Cr as a heavy metal from sewage. Methods: Rice husk ash was used in the structure of concrete as a forty percent by cement weight. Samples were made according to sewage condition and concrete required strength of purification pools. Samples' surface was covered with nanoparticle, RHA, RHA and nanoparticle. Different sewage concentrations of Cr were made from the range of 1 to 1000 ppm. The effects of parameters, such as contact time, adsorbent dose, pH, concentration of Cr in sewage, and Cr absorption were examined. Results: The maximum absorption was obtained 99.7%, in the contact time of 6 hours, dose of adsorbent 20 mg/L, pH 3, and Cr concentration in sewage 10 ppm at the laboratory temperature. Cr absorption followed the Freundlich model of adsorption. Conclusions:The combination of nanoparticles and RHA showed well efficiency for Cr absorption from sewage.

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Applications of Brazilian pine-fruit shell in natural and carbonized forms as adsorbents to removal of methylene blue from aqueous solutions—Kinetic and equilibrium study

Cited by 296 publications

References 69 publications

Application of succinylated sugarcane bagasse as adsorbent to remove methylene blue and gentian violet from aqueous solutions – Kinetic and equilibrium studies

Application of succinylated sugarcane bagasse as adsorbent to remove methylene blue and gentian violet from aqueous solutions – Kinetic and equilibrium studies

Biological activities and chemical constituents of Araucaria angustifolia : An effort to recover a species threatened by extinction

Using Modified Concrete for Removing Chromium From Wastewater

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