Efficacious Sorption Capacities for Pb(II) from Contaminated Water: A Comparative Study Using Biowaste and Its Activated Carbon as Potential Adsorbents

Devi, Bhaswati; Goswami, Manisha; Rabha, Suprakash; Kalita, Sanjeeb; Sarma, Hari Prasad; Devi, Arundhuti

doi:10.1021/acsomega.3c00142

Cited by 13 publications

(4 citation statements)

References 62 publications

(177 reference statements)

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“…The demarcation between the value of radiocobalt sorbed and the precipitated amount is hard. The same result has been reported by other investigators [33,34]. However, and according to Chadha et al, below pH 3, i.e., an acidic medium, CS can be dissolved [35].…”

Section: Effect Of Ph Of the Treated Spiked Solutionsupporting

confidence: 88%

Biosorption Capability of Chitosan for Removal of Cs-137 and/or Co-60 from Radioactive Waste Solution Simulates

Mahmoud,

Eskander,

Saleh

2024

Sustainability

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Biosorption is an impurity-free application developed from the use of nuclear technology for peaceful purposes in everyday life and can be used to treat wastewater streams contaminated with various radionuclides. In this study, a laboratory decontamination experimental approach was developed to apply commercial chitosan as a biosorbent applied for removing radiocesium (Cs-137) and/or radiocobalt (Co-60) from spiked aqueous media. The factors assumed to affect the biosorption of both radionuclides included contact time, pH, and initial radioactivity content. In addition, the biosorbent dose and temperature of the process were studied. Both the biosorption capacity and the biosorption efficiency of the treatment process were calculated. According to FT-IR analysis, it can be assumed that the chitosan amine group (-NH2) is almost accountable for the biosorption of both radionuclides from waste solution simulates. Based on the data obtained, commercial chitosan can be considered an economical and efficient biosorbent for handling low- and medium-level radioactive wastewater streams containing cesium and/or cobalt radionuclides. The acquired data showed that 144 h is an adequate time to remove more than 94% of radiocobalt and about 93% of radiocesium, from a separate solution for each, at pH ~6.5 and using 0.5 g of commercial chitosan.

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Section: Effect Of Ph Of the Treated Spiked Solutionsupporting

confidence: 88%

Biosorption Capability of Chitosan for Removal of Cs-137 and/or Co-60 from Radioactive Waste Solution Simulates

Mahmoud,

Eskander,

Saleh

2024

Sustainability

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“…Below this value, it is positive, and the H + ions competes for the active sites with Pb(II) ions, thereby protonating the oxygen-containing organic groups (carboxylate, phenolic hydroxyl groups, glucosinolates, phytates, etc.) leading to repulsion which increases as the pH decreases [94]. The pH pzc value of 6.25 for broccoli biomass was higher than the pH of 4.8, at which the net charge of the biomass was positive.…”

Section: Effect Of Phmentioning

confidence: 94%

Ecofriendly Application of Calabrese Broccoli Stalk Waste as a Biosorbent for the Removal of Pb(II) Ions from Aqueous Media

Granado-Castro,

Galindo-Riaño,

Gestoso-Rojas

et al. 2024

Agronomy

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A new biosorbent obtained from Calabrese broccoli stalks has been prepared, characterised and used as an effective, low-cost and ecofriendly biomass to remove Pb(II) from aqueous solutions, without any complicated pretreatment. Structural and morphological characterisation were performed by TGA/DGT, FTIR and SEM/EDX; the main components are hemicellulose, starches, pectin, cellulose, lignin and phytochemicals, with important electron donor elements (such as S from glucosinolates of broccoli) involved in Pb(II) sorption. The biosorbent showed values of 0.52 and 0.65 g mL−1 for bulk and apparent densities, 20.6% porosity, a specific surface area of 15.3 m2 g−1, pHpzc 6.25, iodine capacity of 619 mg g−1 and a cation exchange capacity of 30.7 cmol kg−1. Very good sorption (88.3 ± 0.8%) occurred at pH 4.8 with a biomass dose of 10 g L−1 after 8 h. The Freundlich and Dubinin–Radushkevich isotherms and the pseudo-second-order kinetic models explained with good fits the favourable Pb(II) sorption on the heterogeneous surface of broccoli biomass. The maximum adsorption capacity was 586.7 mg g−1. The thermodynamic parameters evaluated showed the endothermic and spontaneous nature of the Pb(II) biosorption. The chemical mechanisms mainly involved complexation, ligand exchange and cation–π interaction, with possible precipitation.

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“…In our previous study, we conducted a comparative analysis of lead adsorption using two distinct adsorbents: E. ferox seed coat and E. ferox seed coat activated carbon, synthesized with a novel activating agent. Notably, the activating agent itself was a pioneering aspect of that research, adding to the novelty of our findings, which showcased the potential of a waste plant‐based biomaterial as an effective adsorbent for lead removal [13] . In this study, we focused on using a novel plant material, leaves of Lippia alba , which shows the advantage of removing both metal and dye in comparison to our previous work to help advance the field of bioremediation.…”

Section: Introductionmentioning

confidence: 93%

“…Notably, the activating agent itself was a pioneering aspect of that research, adding to the novelty of our findings, which showcased the potential of a waste plant-based biomaterial as an effective adsorbent for lead removal. [13] In this study, we focused on using a novel plant material, leaves of Lippia alba, which shows the advantage of removing both metal and dye in comparison to our previous work to help advance the field of bioremediation. This work highlights our commitment to explore alternate, environmentally sustainable biomaterials for pollutant removal.…”

Section: Introductionmentioning

confidence: 99%

Ecologically Safe Removal of Lead Ions and Basic Fuchsin Dye from an Aqueous Solution Using Lippia alba Leaves

Rabha,

Devi,

Goswami

et al. 2023

ChemistrySelect

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The removal of inorganic and organic contaminants from wastewater is a crucial environmental concern, necessitating innovative and eco‐friendly solutions. This study introduces a novel and environmentally friendly approach employing Lippia alba leaves as an efficient adsorbent for the removal of lead metal ions and basic fuchsin dye from wastewater. Through a series of batch experiments, various parameters were explored, including pH, contact time, temperature, adsorbent dosage, and initial concentration, to better understand the adsorption process. The results were best described by the Freundlich model for lead ions and the Langmuir model for basic fuchsin dye, with maximum monolayer adsorption capacity (qm) of 67.06 mg/g (lead metal) and 33.32 mg/g (basic fuchsin dye). Kinetic studies demonstrated that the pseudo‐second‐order model accurately described the adsorption kinetics for both pollutants, while thermodynamics suggested exothermic adsorption for lead ions and endothermic adsorption for basic fuchsin dye, indicating spontaneous adsorption in both cases. Response Surface Methodology optimization achieved exceptional results: 99.9 % lead ion removal at 308 K, pH 4.5, 1.35 g/L adsorbent, and 2.5 mg/L initial concentration; 98.31 % basic fuchsin dye removal at 318 K, pH 6, 2 g/L adsorbent, and 15 mg/L initial concentration. This research offers a sustainable solution for water pollution challenges, supporting environmental preservation.

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Efficacious Sorption Capacities for Pb(II) from Contaminated Water: A Comparative Study Using Biowaste and Its Activated Carbon as Potential Adsorbents

Cited by 13 publications

References 62 publications

Biosorption Capability of Chitosan for Removal of Cs-137 and/or Co-60 from Radioactive Waste Solution Simulates

Biosorption Capability of Chitosan for Removal of Cs-137 and/or Co-60 from Radioactive Waste Solution Simulates

Ecofriendly Application of Calabrese Broccoli Stalk Waste as a Biosorbent for the Removal of Pb(II) Ions from Aqueous Media

Ecologically Safe Removal of Lead Ions and Basic Fuchsin Dye from an Aqueous Solution Using Lippia alba Leaves

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