2018
DOI: 10.1016/j.jclepro.2017.10.036
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Continuous adsorption of silver and copper by Verde-lodo bentonite in a fixed bed flow-through column

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Cited by 47 publications
(14 citation statements)
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“…Freitas and their co-scientists were experimented for binary adsorption of silver and copper onto bentonite (Verde-lodo clay), in which first flow rate was optimized. Thereafter, effects of initial concentration and molar fraction were investigated using this optimum flow rate (Freitas et al 2018).…”
Section: Adsorption Of Metal and Ionmentioning
confidence: 99%
“…Freitas and their co-scientists were experimented for binary adsorption of silver and copper onto bentonite (Verde-lodo clay), in which first flow rate was optimized. Thereafter, effects of initial concentration and molar fraction were investigated using this optimum flow rate (Freitas et al 2018).…”
Section: Adsorption Of Metal and Ionmentioning
confidence: 99%
“…The authors verified loss of water in the range of 76− 81 °C and loss of hydroxyls in the range of 478−483 °C. 34 Above 800 °C, the derivative thermogravimetric (DTG) curve showed oscillations that can be attributed to the decomposition, crystallization, and fusion of some minerals present in CVL. 15,36 In addition, the pH at which the adsorbent surface charge is zero was also obtained in the literature, in which at pH > 2.7, the CVL surface has a negative surface charge.…”
Section: Resultsmentioning
confidence: 82%
“…36 Moreover, the CVL clay also had an affinity for inorganic composts, such as copper and silver. 34 These results indicate that CVL bentonite clay has affinity for varied types of contaminants and can be considered a promising material for large-scale applications.…”
Section: Effect Of Inlet Concentrationmentioning
confidence: 99%
“…The dynamic sorption of PTEs by mineral amendments has been investigated using zeolite (Medvidović et al, 2008;Trgo et al, 2011;Nguyen et al, 2015), laterite (Maiti et al, 2008;Chotpantarat et al, 2012), and sepiolite (Brigatti et al, 2000;Turan et al, 2005). Smectites have also been used after thermal or acid treatment in order to minimize their expandability (Bertagnolli et al, 2011;Gimenes et al, 2013;da Rosa et al, 2015;de Freitas et al, 2018). These studies involve the investigation of various parameters that control sorption in clay beds, such as the bed height, the flow rate and the initial elemental concentration, and the experimental data are fitted to the respective dynamic kinetics models.…”
Section: Stabilization Of Ptes By Mineral Amendments -State Of the Artmentioning
confidence: 99%
“…Kaprara et al, 2016;Kumar and Chakraborty, 2009;Maji et al, 2012;Mondal, 2009;Vijaya and Krishnaiah, 2010;Wan Ngah et al, 2012), however, the use of clays, especially smectites, in such set-ups is minimal, presumably because of their expandable and impermeable nature. In these cases a calcined form is used instead, which is non-expandable but has different physicochemical characteristics than the original material (lower SSA and CEC) (Bertagnolli et al, 2011;de Almeida Neto et al, 2012Gimenes et al, 2013;de Freitas et al, 2018).…”
Section: Introductionmentioning
confidence: 99%