Response surface methodology for optimization of heavy metal removal by magnetic biosorbent made from anaerobic sludge

Roshini, P S; Kumar, Arvind

doi:10.1016/j.jics.2022.100638

Cited by 13 publications

(5 citation statements)

References 21 publications

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“…In addition, Touihri et al [ 47 ] obtained maximum Cr(VI) and Cu(II) elimination efficiencies of 212.22 mg/g and 68.64 mg/g, respectively, using magnetic pinecone gel beads as an adsorbent. However, the fabricated M-Ch/CNF-Fe(III) composite showed better adsorption efficiency of heavy metal ions than silica-coated amino-functionalized magnetic Muraya koenigii extracts [ 39 ], magnetic nanoparticles incorporated with chitosan gel [ 45 ], magnetically activated carbon nanoparticles [ 48 ], and magnetically modified alkali-conditioned anaerobically digested sludge [ 49 ].…”

Section: Resultsmentioning

confidence: 99%

Adsorptive Elimination of Heavy Metals from Aqueous Solution Using Magnetic Chitosan/Cellulose-Fe(III) Composite as a Bio-Sorbent

et al. 2023

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Magnetic chitosan/cellulose nanofiber-Fe(III) [M-Ch/CNF-Fe(III)] composites were isolated for the elimination of Cr(VI), Cu(II), and Pb(II) from aqueous solution. Various analytical methods, such as field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction analysis (XRD), and thermogravimetric analysis (TGA) were employed to determine the morphological, physicochemical, and thermal properties of the isolated M-Ch/CNF-Fe(III) composites. It was found that the M-Ch/CNF-Fe(III) composites were porous materials, and they have the potential to be implemented as an adsorbent for heavy metals removal. The adsorption efficiency of M-Ch/CNF-Fe(III) composites was determined for Cr(VI), Cu(II), and Pb(II) elimination with changing pH (pH 1.0–8.0), adsorbent doses (0.05–1.0 g), time (15–90 min), and temperature (28–80 °C). In addition, isothermal and kinetics studies were conducted to assess the adsorption behavior and mass transfer phenomena of M-Ch/CNF-Fe(III) composites as an adsorbent for Cr(VI), Cu(II) and Pb(II) elimination from aqueous solution. The outcomes of the present study reveal that the M-Ch/CNF-Fe(III) composites could be utilized as an adsorbent for the Cr(VI), Cu(II), and Pb(II) elimination from industrial effluents.

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Section: Resultsmentioning

confidence: 99%

Adsorptive Elimination of Heavy Metals from Aqueous Solution Using Magnetic Chitosan/Cellulose-Fe(III) Composite as a Bio-Sorbent

et al. 2023

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“…The statistically significant correlation of a design was determined using variance analysis (ANOVA). The ideal parameters were determined using the following linear relationship; then, contours were utilised to examine every variable's interaction influence [26].…”

Section: Response Surface Methodologymentioning

confidence: 99%

Optimization Process of Potassium Carbonate Activated Carbon through Jute-Based Core Materials by Using Artificial Neural Network with Response Surface Methodology

Natrayan

Niveditha

Kaliappan³

et al. 2023

Adsorption Science & Technology

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Potassium carbonate was tested as novel information for producing carbonaceous materials from jute cores. Two quadratic models have been developed for both answers to link the preparatory parameters: activating temperatures, molar ratio, and incubation time. The RSM and ANN models were used to improve the processing conditions to maximise the quantities of iodine and methylene blue penetration. The best charcoal was obtained using 900°C activating temperatures, a 1.5 molar ratio, and a 4-hour activating time. This resulted in iodine and methylene blue absorption of 1260.07 mg/g and 369.21 mg/g, respectively. It was discovered that the K2CO3-based pyrolysis process might be anticipated to become a safe yet incredibly efficient process of making activated carbons with a very well-defined and monocultural porous structure. Even though the precise emphasis given to K2CO3 is unknown at the moment, given the creation of K2C3O4 just after evolvement with one additional molarity of CO at approximately 870°C, these same porous and papule responses begun by K2CO3 stimulation might be temporarily posited to be quite comparable to an initiation action needed to make progress by K2C3O4. The influence of control parameters was examined in this study using variance analysis like the ANOVA test. Furthermore, the response surface (RSM) and artificial neural networks (ANN) are employed to improve the output results while optimising the methylene blue and iodine qualities. Consequently, the experimental findings correlate well with the statistics.

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“…RSM is a statistical method that uses quantitative data from experimental tests to determine regression model equations and the optimum operating conditions. RSM is an assembly of mathematical and statistical techniques for modeling and analyzing problems in which a response of interest is influenced by several variables [27,28].…”

Section: Application Of Rsmmentioning

confidence: 99%

Optimization of Chromium(III) Sorption by Activated Sludge Using Response Surface Methodology

et al. 2023

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The removal process of Cr(III) in aqueous solution using activated sludge as adsorbent was optimized. Response surface methodology was employed to assess the removal efficiency considering the cumulative effect of pH and contact time. The quantitative relationship between Cr(III) uptake and variable parameters was used to optimize the control level of each parameter by a full factorial design method. The analysis of variance demonstrates that the model was statistically highly significant, which shows also that the removal of Cr(III) was affected by the studied factors. The model was statistically tested and verified by experimentation. The response surface methodology gives not only valuable information on interactions between the evaluated parameters but also allows identifying the optimum values of the studied factors.

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Response surface methodology for optimization of heavy metal removal by magnetic biosorbent made from anaerobic sludge

Cited by 13 publications

References 21 publications

Adsorptive Elimination of Heavy Metals from Aqueous Solution Using Magnetic Chitosan/Cellulose-Fe(III) Composite as a Bio-Sorbent

Adsorptive Elimination of Heavy Metals from Aqueous Solution Using Magnetic Chitosan/Cellulose-Fe(III) Composite as a Bio-Sorbent

Optimization Process of Potassium Carbonate Activated Carbon through Jute-Based Core Materials by Using Artificial Neural Network with Response Surface Methodology

Optimization of Chromium(III) Sorption by Activated Sludge Using Response Surface Methodology

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