Potentiality of mosambi (Citrus limetta) peel dust toward removal of Cr(VI) from aqueous solution: an optimization study

Mondal, N. K.; Basu, Sambrita; Sen, Kamalesh; Debnath, Pampa

doi:10.1007/s13201-019-0997-6

Cited by 30 publications

(8 citation statements)

References 51 publications

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“…Several studies using agricultural wastes such as banana peels, citrus limetta peels, coconut husk, potato peels, palm pressed fibers, and sawdust, etc. as an adsorbent for the treatment of chromium have been reported [ 17 , 18 , 19 , 20 , 21 ]. However, their efficiency is limited and can be modified by combining them with other suitable materials.…”

Section: Introductionmentioning

confidence: 99%

Kinetic and Isothermal Investigations on the Use of Low Cost Coconut Fiber-Polyaniline Composites for the Removal of Chromium from Wastewater

et al. 2022

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Pollution due to various heavy metals is increasing at an alarming rate. Removal of hexavalent chromium from the environment is a significant and challenging issue due to its toxic effects on the ecosystem. Development of a low-cost adsorbent with better adsorption efficiency is presently required. In this study, waste coconut fibers (CF) were used to prepare its composite with polyaniline (PANI) via in-situ oxidation. The obtained composites with varying loading of PANI (15, 25, 50, and 75%w/w) were characterized by FE-SEM, TGA, and FTIR spectroscopy. The prepared composites were evaluated for their adsorption performance for removal of Cr(VI). It was concluded that the composite with 50% w/w polyaniline loading on coconut fiber exhibited a maximum adsorption efficiency of 93.11% in 30 min. The effect of pH, dosage, and concentration of the aqueous solution of chromium on the Cr(VI) adsorption efficiency of the composite was also studied. From the optimization studies it was observed that the absorbents exhibited the best adsorption response for Cr(VI) removal with 0.25 mg/mL adsorbent at pH 4, in 30 min. The effect of pH, dosage, and concentration of the aqueous solution of chromium on the Cr(VI) adsorption efficiency of the composite was also studied. This study highlights the application of low-cost adsorbent as a potential candidate for the removal of hexavalent chromium. A detailed study on the adsorption kinetics and isothermal analysis was conducted for the removal of Cr(VI) from aqueous solution using coconut fiber-polyaniline composite. From the kinetic investigation, the adsorption was found to follow the pseudo second order model. The data obtained were best fitted to the Elovich model confirming the chemisorption of the Cr(VI) on coconut polymer composites. The analysis of the isothermal models indicated monolayer adsorption based on the Langmuir adsorption model.

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Section: Introductionmentioning

confidence: 99%

Kinetic and Isothermal Investigations on the Use of Low Cost Coconut Fiber-Polyaniline Composites for the Removal of Chromium from Wastewater

et al. 2022

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“…Numeric parameters selected were initial concentration of MB, amount of adsorbent and pH of the solution, and results obtained from statistical design were maintained during the experiment and found to be fitted for the removal of dye [72]. The model adequacy of the Cr(VI) adsorption by Musambi peels was also found to be statistically viable [152]. In recent years, RSM modeling has been applied and reported in several adsorbent-based materials.…”

Section: Design Of Experimentsmentioning

confidence: 98%

Biotransformation of Citrus Waste-II: Bio-Sorbent Materials for Removal of Dyes, Heavy Metals and Toxic Chemicals from Polluted Water

et al. 2021

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Industrial processes and anthropogenic activities generate huge amounts of wastes in the form of chemicals, such as heavy metals, dyes, fertilizers, pharmaceutically active chemicals, battery effluents and so on. When these chemicals are left untreated and discarded in the ground or surface waters, they not only cause pollution and harm the ecosystem but also cause toxic effects on the health of human beings, animals and food crops. There are several methods of removal of these toxic materials from the wastewaters, and adsorption by bio-sorbents has been demonstrated as one of the most inexpensive, efficient and convenient methods. Citrus is one of the largest grown fruit crops in the tropical and subtropical regions on the planet. After processing of the fruits at food processing industries, approximately half of the fruit mass is discarded as waste, which causes a number of pollution problems. Alternately, this biomass can be converted to bio-sorbents for the removal of harmful and toxic chemicals from the industrial effluents and wastewaters. The first part of this article contains a thorough review on the biotransformation of citrus waste for the production of biofuel and valuable compounds by fermentation involving microorganisms. The second and concluding part reviews the recent progress in biotransformation of citrus waste biomass (that may be remaining post-extraction of valuable compounds/biofuel generation) into efficient adsorbent substrate materials and their adsorption capacities. The article also includes the details of the synthesis process and mechanisms of adsorption processes.

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“…Numeric parameters selected were initial concentration of MB, amount of adsorbent and pH of the solution, and results obtained from statistical design were maintained during the experiment and found to be fitted the removal of dye [72]. The model adequacy of the Cr(VI) adsorption by Musambi peels was also found to be statistically viable [152]. In recent years, RSM modeling has been applied and reported in several adsorbent-based materials.…”

Section: Design Of Experimentsmentioning

confidence: 99%

Applications of Biosorption in Wastewater Treatment

2022

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ña (Spain) as an Associate Professor. He received his PhD in Biology from University of Coru ña in 1997. His main scientific focus is on the study and application of systems based on microalgae. He has more than 25 years of experience in the application of these microorganisms for various scientific purposes, including in studies of the toxic effects of pollutants, studies of response mechanisms and tolerance to pollutants, pollutant removal and physiological studies. He has published more than 45 papers in international peer-reviewed journals and has reviewed papers in various international scientific journals. He has supervised several PhD theses and has participated in several projects. vii

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Potentiality of mosambi (Citrus limetta) peel dust toward removal of Cr(VI) from aqueous solution: an optimization study

Cited by 30 publications

References 51 publications

Kinetic and Isothermal Investigations on the Use of Low Cost Coconut Fiber-Polyaniline Composites for the Removal of Chromium from Wastewater

Kinetic and Isothermal Investigations on the Use of Low Cost Coconut Fiber-Polyaniline Composites for the Removal of Chromium from Wastewater

Biotransformation of Citrus Waste-II: Bio-Sorbent Materials for Removal of Dyes, Heavy Metals and Toxic Chemicals from Polluted Water

Applications of Biosorption in Wastewater Treatment

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