Modeling and optimization of biosorption of lead (II) ions from aqueous solution onto pine leaves (Pinus kesiya) using response surface methodology

Huynh, Phuong-Thao; Nguyen, Ngoc-Tuan; Van, Ha Nguyen; Nguyen, Phuong-Tung; Nguyen, Trinh Duy; Dinh, Van‐Phuc

doi:10.5004/dwt.2020.24807

Cited by 7 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The kinetic experiments of Cr (VI) removal were analyzed using the non-linear form of the pseudo-first-order, pseudo-second-order and Elovich models (Huynh et al 2020;Mohammed et al 2020). The kinetics of PSh data obtained from the experiments of concentration of 100 mg/Lat various contact times, and optimum conditions obtained previously along with the equations and constants are shown in Table 8.…”

Section: Adsorption Kinetics Modelingmentioning

confidence: 99%

Modelling and optimization of hexavalent chromium removal from aqueous solution by adsorption on low-cost agricultural waste biomass using response surface methodological approach

Rzig

Guesmi

Hamrouni

2021

Water Science and Technology

View full text Add to dashboard Cite

In this study, response surface methodology (RSM) approach using central composite design (CCD) was investigated to develop mathematical model and to optimize the effects of pH, adsorbent amount and temperature related to the hexavalent chromium removal by biosorption on peanut shells (PSh). The highest removal percentage of 30.28% was found by the predicted model under the optimum conditions (pH of 2.11, 0.73 g of PSh and 37.2 °C) for a 100 mg/L initial Cr (VI) concentration, which was very near to the experimental value (29.92%). The PSh was characterized by SEM, EDX, FTIR, BET, XRD analysis. Moreover, Langmuir isotherm fitted well (R2 = 0.992) with the experimental data, and the maximum adsorption capacity was discovered to be 2.48 and 3.49 mg/g respectively at 25 and 45 °C. Kinetic data was well foreseen by pseudo second order. Thermodynamic study depicted that biosorption of Cr(VI) onto PSh was spontaneous and endothermic. Regeneration of the PSh using NaOH showed a loss <5% in the Cr (VI) removal efficiency till three recycle runs. In summary, the Cr (VI) removal onto economic, sensitive and selective biosorbent (PSh) optimized using CCD to study biosorption behaviors.

show abstract

Section: Adsorption Kinetics Modelingmentioning

confidence: 99%

Modelling and optimization of hexavalent chromium removal from aqueous solution by adsorption on low-cost agricultural waste biomass using response surface methodological approach

Rzig

Guesmi

Hamrouni

2021

Water Science and Technology

View full text Add to dashboard Cite

show abstract

“…The limits of the selected parameters were summarized in Table 1 and the model equation developed by RSM is given below. 28 y = α 0 +…”

Section: Optimizationmentioning

confidence: 99%

Assessment of lead biosorption performance of spent Gelidiella acerosa (marine macro algae): Optimization, isotherm, kinetic, and column studies

Dulla

2021

Env Prog and Sustain Energy

View full text Add to dashboard Cite

In this research, biosorption of Lead using spent Gelidiella acerosa from synthetic aqueous phase was studied in batch and fixed bed modes. Biosorbent was prepared from waste biomass of Gelidiella acerosa after extraction of agar as a model industrial waste recycle. The process efficiency and optimum lead uptake were evaluated by considering initial pH, lead concentration, and biosorbent dosage as process variables and contact time and temperature as fixed parameters. Central composite design of Response Surface Methodology was used to optimize process parameters and ANOVA showed that initial pH of lead solution significantly influences the biosorption.Interaction effects of different process parameters on process efficiency were analyzed with the help of surface response plots. The highest lead biosorption of 90.75% was noticed at optimum conditions of pH 5.15, initial lead concentration 27.35 mg L −1 and biosorbent dosage 0.04 g. Various kinetic equations were used to analyze the biosorption mechanism and found that metal binding is due to chemical reaction with multi stage mass transfer. Langmuir isotherm was found to be well fitted to equilibrium data.Column studies were also conducted to assess the suitability of the process to continuous operations. The most popular Thomas and Yoon nelson models were used to evaluate the fitness of column studies. Biosorbent was characterized using FTIR and SEM to determine surface functional groups and surface texture.

show abstract

Green synthesis, characterization, application and functionality of nitrogen-doped MgO/graphene nanocomposite

Husein

Uddin

Ansari

et al. 2021

Environ Sci Pollut Res

View full text Add to dashboard Cite

Modeling and optimization of biosorption of lead (II) ions from aqueous solution onto pine leaves (Pinus kesiya) using response surface methodology

Cited by 7 publications

References 26 publications

Modelling and optimization of hexavalent chromium removal from aqueous solution by adsorption on low-cost agricultural waste biomass using response surface methodological approach

Modelling and optimization of hexavalent chromium removal from aqueous solution by adsorption on low-cost agricultural waste biomass using response surface methodological approach

Assessment of lead biosorption performance of spent Gelidiella acerosa (marine macro algae): Optimization, isotherm, kinetic, and column studies

Green synthesis, characterization, application and functionality of nitrogen-doped MgO/graphene nanocomposite

Contact Info

Product

Resources

About