Removal of humic acid from aqueous media using Sono-Persulphate process: optimization and modelling with response surface methodology (RSM)

Alizadeh, Somayeh; Sadeghi, Hadi; Vosoughi, Mehdi; Dargahi, Abdollah; Mokhtari, S. Ahmad

doi:10.1080/03067319.2020.1772777

Cited by 19 publications

(15 citation statements)

References 40 publications

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“…It has a serious impact on the climate, food chain and to our ecosystem. Hence researchers all over the globe have focused their attention to develop an efficient treatment method to tackle this issue [4,9,10,59,68,92]. Adsorption process is one of the best choices for the removal of toxic contaminants from water as it possesses many benefits over other treatment method such as flocculation, ion exchange, electrochemical treatment, photocatalytic degradation, biodegradation etc.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of methylene blue dye from aqueous solution by a novel PVA/CMC/halloysite nanoclay bio composite: Characterization, kinetics, isotherm and antibacterial properties

Radoor

Karayil²,

Parameswaranpillai

et al. 2020

J Environ Health Sci Engineer

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Here the fabrication of a novel PVA/CMC/halloysite nanoclay membrane for the effective adsorption of cationic dye (methylene blue, MB) from aqueous environment is reported. The membranes were analyzed through scanning electron microscopy (SEM), optical microscopy (OM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), contact angle and universal testing machine (UTM) analysis. The adsorption behavior of the membrane in terms of nanoclay loading, contact time, initial concentration of MB, pH and temperature were also discussed. The membrane exhibits excellent removal efficiency (99.5%) for MB in the optimal conditions such as nanoclay dose = 6 wt%, initial dye concentration = 10 ppm, contact time = 240 min, pH = 10 and temperature = 30 °C. Three isotherm models (Freundlich, Langmuir and Temkin) were employed to analyze the dye adsorption data. The results revealed that the adsorption process could be described well with both Freundlich and Langmuir isotherm model. The kinetics of MB adsorption onto membrane follows pseudo-second-order model while thermodynamic parameter indicate that adsorption is feasible and endothermic in nature. The antibacterial studies revealed that the PVA/CMC/halloysite nanoclay membrane possess notable antibacterial property. Finally, the desorption studies showed that the membrane have good reusability even after four recycles.

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Section: Introductionmentioning

confidence: 99%

Adsorption of methylene blue dye from aqueous solution by a novel PVA/CMC/halloysite nanoclay bio composite: Characterization, kinetics, isotherm and antibacterial properties

Radoor

Karayil²,

Parameswaranpillai

et al. 2020

J Environ Health Sci Engineer

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“…), mean, coefcients of variation (C.V.), R 2 , adjusted R 2 , projected R 2 , and Adeq Precision were 0.1823, 85.09, 0.2142, 0.9998, 0.9996, 0.9990, and 193.0294, respectively, according to Table 7. According to earlier research, the anticipated and adjusted R 2 were in good agreement, with a diference of less than 0.2 [55][56][57][58][59][60].…”

Section: Fit Summary and Statistic Tablementioning

confidence: 70%

Optimization and Modeling of Cr (VI) Removal from Tannery Wastewater onto Activated Carbon Prepared from Coffee Husk and Sulfuric Acid (H2SO4) as Activating Agent by Using Central Composite Design (CCD)

Amibo

Beyan

Bayu

et al. 2023

Journal of Environmental and Public Health

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The primary goal of this research is to lower the hexavalent chromium (Cr (VI)) concentration that has occurred from the growth of the tannery industry. As a result, the potential for heavy metal concentration is increasing day by day. Industrial effluent containing Cr (VI) contributes significantly to water pollution. Chromium hexavalent ion (Cr (VI)) in wastewater is extremely hazardous to the environment. It is critical to address such a condition using activated carbon derived from biomass. Adsorption is one of the most successful methods for removing hexavalent chromium from wastewater. Treated wastewater has no substantial environmental contamination consequences. The ash content, moisture content, volatile matter content, and fixed carbon content of wet coffee husk were 3.51, 10.85, 68.33, and 17.31, respectively. The physicochemical properties of coffee husk-based activated carbon (CHBAC) obtained during experimentation were pH, porosity, the yield of CHBAC, bulk density, point of zero charges, and specific surface area of 5.2, 58.4 percent, 60.1 percent, 0.71 g/mL, 4.19, and 1396 m2/g, respectively, indicating that CHBAC has a higher capacity as an adsorbent medium. For optimization purposes, the parameters ranged from pH (0.3–3.7), dose (2.3–5.7) g , and contact time (0.3–3.7) hr. The quadratic models were chosen for optimization, and the p value for the model was significant since it was less than 0.05, but the lack of fit model was inconsequential because it was more than 0.05. The optimum adsorption obtained with numerical optimization of Cr (VI) was 97.65 percent. This was obtained at a pH of 1.926, a dose of 4.209 g/L, and a contact time of 2.101 hours. This result was observed at a pH of 1.93, a dosage of 4.2 g/L, and a contact duration of 2.1 hours. The desirability obtained during numerical optimization was 1. Coffee husk-based activated carbon has a bigger surface area, and it has a stronger ability to absorb hexavalent chromium from tannery wastewater effluents.

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“…39,40 Response surface methods can be designed in different ways depending on their application in the experimental design. 41,42 Among the RSM CCD (central composite design), D-optimal, and Box-Behnken methods, the CCD method has been used in this study.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the photocatalytic degradation of phenol using superparamagnetic iron oxide (Fe₃O₄) nanoparticles in aqueous solutions

Bazrafshan,

Mohammadi,

Zarei

et al. 2023

RSC Adv.

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Removal of humic acid from aqueous media using Sono-Persulphate process: optimization and modelling with response surface methodology (RSM)

Cited by 19 publications

References 40 publications

Adsorption of methylene blue dye from aqueous solution by a novel PVA/CMC/halloysite nanoclay bio composite: Characterization, kinetics, isotherm and antibacterial properties

Adsorption of methylene blue dye from aqueous solution by a novel PVA/CMC/halloysite nanoclay bio composite: Characterization, kinetics, isotherm and antibacterial properties

Optimization and Modeling of Cr (VI) Removal from Tannery Wastewater onto Activated Carbon Prepared from Coffee Husk and Sulfuric Acid (H2SO4) as Activating Agent by Using Central Composite Design (CCD)

Optimization of the photocatalytic degradation of phenol using superparamagnetic iron oxide (Fe₃O₄) nanoparticles in aqueous solutions

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Removal of humic acid from aqueous media using Sono-Persulphate process: optimization and modelling with response surface methodology (RSM)

Cited by 19 publications

References 40 publications

Adsorption of methylene blue dye from aqueous solution by a novel PVA/CMC/halloysite nanoclay bio composite: Characterization, kinetics, isotherm and antibacterial properties

Adsorption of methylene blue dye from aqueous solution by a novel PVA/CMC/halloysite nanoclay bio composite: Characterization, kinetics, isotherm and antibacterial properties

Optimization and Modeling of Cr (VI) Removal from Tannery Wastewater onto Activated Carbon Prepared from Coffee Husk and Sulfuric Acid (H2SO4) as Activating Agent by Using Central Composite Design (CCD)

Optimization of the photocatalytic degradation of phenol using superparamagnetic iron oxide (Fe3O4) nanoparticles in aqueous solutions

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Optimization of the photocatalytic degradation of phenol using superparamagnetic iron oxide (Fe₃O₄) nanoparticles in aqueous solutions