Biosorption potential of Stoechospermum marginatum for removal of heavy metals from aqueous solution: Equilibrium, kinetic and thermodynamic study

Sarangi, Naduvil Veettil; Rajkumar, Renganathan

doi:10.1016/j.cherd.2024.01.020

Cited by 5 publications

(2 citation statements)

References 44 publications

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“…Recent studies have used Fourier transform infrared spectroscopy (FT-IR) or X-ray photoelectron spectroscopy (XPS) [24,25] to examine changes in the functional groups and study the mechanism of biosorption. The biosorption mechanism usually consists of adsorption, ion exchange, complexation, and microprecipitation [16].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, nondestructive regeneration of biosorbents by ecofriendly, economical, and effective desorbing eluants is a valuable option for eliminating heavy metals from industrial wastewater. Several studies have investigated the recycling of raw biosorbents [24,33,34]. The number of effective sorption-desorption cycles of many biosorbents, however, do not meet ideal applications.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption of Zinc(II) Ion by Spent and Raw Agaricus bisporus in Aqueous Solution

Zhang,

Zhao,

Xue

et al. 2024

Processes

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A significant environmental concern globally is the pollution of water bodies as a result of heavy metals. To date, various attempts have been made to effectively remove heavy metals, such as those that use synthetic and biogenic materials to abate and control water pollution. The biological removal of pollutants from water is an efficient and environmentally friendly technique. In this study, we evaluated the biosorption characteristics of Zn2+ ions from aqueous solution by spent composed of raw Agaricus biosporium (RAB) and A. biosporium (SCAB). We added different biosorption doses, metal ions, and initial concentrations of pollutants to explore the adsorption of Zn2+ by RAB and SCAB. We applied pseudo-first- and second-order models to investigate the biosorption kinetics. According to our results, the rate of Zn2+ removal from the aqueous solution using raw biomass was significantly lower than that using sodium citrate-treated biomass of SCAB. When the Zn2+ concentration increased from 10 mg L−1 to 200 mg L−1, the rate of removal of RAB decreased from 73.9% to 38.4%, and that of Zn2+ by SCAB decreased from 99.9% to 75.9%. As we increased the biosorbent dose, the rate of Zn2+ removal by SCAB increased. Interestingly, Zn2 biosorption was inhibited by heavy co ions (Cu2+ and Pb2+) and light metals (e.g., Na+, Mg2+, K+, and Ca2+). When treating wastewater polluted with Zn2+, Pb2+, and Cu2+, SCAB showed good potential. The results of this study provide a scientific basis for an environmentally sound approach to controlling water pollution.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Adsorption of Zinc(II) Ion by Spent and Raw Agaricus bisporus in Aqueous Solution

Zhang,

Zhao,

Xue

et al. 2024

Processes

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Statistical modeling and optimization of heavy metals (Pb and Cd) adsorption from aqueous solution by synthesis of Fe3O4/SiO2/PAM: isotherm, kinetics, and thermodynamic

Osman,

Uğurlu,

Vaizoğullar

et al. 2024

Polym. Bull.

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In this study, magnetic material was synthesized using iron salts, then silicon-specific material was used to gain porosity, straight-chain polyacrylamide (PAM) was modified to give the surface functional properties, and the final product synthesized Fe3O4/SiO2/PAM nanocomposite material. Heavy metal (Pb and Cd) removal studies were carried out with the synthesized composite material, considering the central composite design and response surface methodology (CCD-RSM) optimization model. The effects of various parameters, for example, the initial concentration, pH, adsorbent dose, temperature and contact time, were investigated as a part of this study. To optimize these parameters, the CCD-RSM model was applied to design the experiments. Analysis of variance (ANOVA) was applied to evaluate statistical parameters and investigate interactions of variables. In the designed experimental set, the amount of adsorbent (30 mg), pH 7.0 value, temperature (40 °C), initial concentration of Pb (80 mg/L) and Cd (20 mg/L) and 90 min contact time were determined as the optimum conditions. The high coefficient of determination of both metals showed good agreement between experimental results and predicted values (R2 0.99; 0.95). TEM, SEM, XRD, FTIR, BET and Zeta potential analyses were performed to characterize the structure and morphology of the adsorbent. In Pb2+ and Cd2+ heavy metal removal studies, maximum adsorption capacities were determined as 66.54 and 13.22 mg/g, respectively. Additionally, adsorption isotherms, adsorption kinetics and thermodynamic modeling studies were conducted. Features such as large surface area and high adsorption capacity of the synthesized nanoparticles were observed. In this study, Fe3O4/SiO2/PAM demonstrated its potential as an effective adsorbent for the removal of heavy metal ions present in simulated wastewater samples. In particular, we can say that the material has a strong selectivity, as well as a high affinity for Pb(II) ions.

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Cationic dye biosorption from aqueous solution using sunflower tray and process optimization

Pek,

Kütük,

Daştan

2024

Chem. Pap.

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Biosorption potential of Stoechospermum marginatum for removal of heavy metals from aqueous solution: Equilibrium, kinetic and thermodynamic study

Cited by 5 publications

References 44 publications

Adsorption of Zinc(II) Ion by Spent and Raw Agaricus bisporus in Aqueous Solution

Adsorption of Zinc(II) Ion by Spent and Raw Agaricus bisporus in Aqueous Solution

Statistical modeling and optimization of heavy metals (Pb and Cd) adsorption from aqueous solution by synthesis of Fe3O4/SiO2/PAM: isotherm, kinetics, and thermodynamic

Cationic dye biosorption from aqueous solution using sunflower tray and process optimization

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