Biosorption of zinc(II) on rapeseed waste: Equilibrium studies and thermogravimetric investigations

Păduraru, Carmen; Tofan, Lavinia; Teodosiu, Carmen; Bunia, I.; Tudorachi, Niță; Toma, Ovidiu

doi:10.1016/j.psep.2014.12.003

Cited by 70 publications

(25 citation statements)

References 61 publications

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“…As shown in Fig. 5 two main weight losses which signify the moisture (40-110°C) and volatile matter (110-700°C) present in the adsorbents [27]. The thermal parameters of RSGS and ASGS present two stages of thermal degradation.…”

Section: Characterization Of the Adsorbentsmentioning

confidence: 95%

Adsorptive remediation of hexavalent chromium from synthetic wastewater by a natural and ZnCl2 activated Sterculia guttata shell

Rangabhashiyam

Selvaraju

2015

Journal of Molecular Liquids

143

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Section: Characterization Of the Adsorbentsmentioning

confidence: 95%

Adsorptive remediation of hexavalent chromium from synthetic wastewater by a natural and ZnCl2 activated Sterculia guttata shell

Rangabhashiyam

Selvaraju

2015

Journal of Molecular Liquids

143

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“…As seen in Figure 9, copper retention of almond shell depends on the initial concentration and it increases with the increase in availability of metal ions in the test solutions. When the sorbent amount is constant, an increase in the amount of metal ions requires a higher driving force for removal of the ions from aqueous phase to sorbent surface, resulting in an increased probability of interaction between metal ions and active binding areas [24]. …”

Section: Effect Of Initial Metal Concentrationmentioning

confidence: 99%

Kinetic and Isotherm Analysis of Cu(II) Adsorption onto Almond Shell (Prunus Dulcis)

Yıldız

2017

Ecological Chemistry and Engineering S

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Abstract:In the work, adsorption of Cu 2+ ions onto almond shell were investigated under different operational conditions. Almond shell was used without any pretreatment prior to the tests. The optimum conditions for adsorption of Cu 2+ ions through almond shell were determined to be; pH 5.0, temperature 20ºC, shaking rate 125 rpm, sorbent dose 0.3 g and initial Cu 2+ ion concentration 50 mg/dm 3 . The equilibrium duration of the system was 60 minutes. The sorption capacities of the sorbents were predicted with the aid of equilibrium and kinetic models. The interactions of peanut shell with metal ions were constituted by SEM, EDX, FT-IR, XRD and AFM. The pseudo-first-order, pseudo-second-order, Weber-Morris, Elovich model and Bangham kinetic models were applied to test the experimental data. The Cu +2 ions adsorption onto almond shell was better defined by the pseudo-second-order kinetic model, for initial pH. The equilibrium data were evaluated using Langmuir, Freundlich, Temkin, D-R and Harkins Jura isotherms. The highest R 2 value in isotherm studies was obtained from Langmiur isotherm (R 2 = 0.98) for the inlet concentration.

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“…The thermal degradation of plant biomass can be classified under the distinct stages of moisture evolution, hemicelluloses, cellulose and lignin decomposition respectively [44]. The insights over the thermal stability of RSMS, SSMS and PSMS were presented in Fig.…”

Section: Adsorbent Characteristicsmentioning

confidence: 99%

Efficacy of unmodified and chemically modified Swietenia mahagoni shells for the removal of hexavalent chromium from simulated wastewater

Rangabhashiyam

Selvaraju

2015

Journal of Molecular Liquids

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Biosorption of zinc(II) on rapeseed waste: Equilibrium studies and thermogravimetric investigations

Cited by 70 publications

References 61 publications

Adsorptive remediation of hexavalent chromium from synthetic wastewater by a natural and ZnCl2 activated Sterculia guttata shell

Adsorptive remediation of hexavalent chromium from synthetic wastewater by a natural and ZnCl2 activated Sterculia guttata shell

Kinetic and Isotherm Analysis of Cu(II) Adsorption onto Almond Shell (Prunus Dulcis)

Efficacy of unmodified and chemically modified Swietenia mahagoni shells for the removal of hexavalent chromium from simulated wastewater

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