Bioremediation of heavy metals from the aqueous environment using Artocarpus heterophyllus (jackfruit) seed as a novel biosorbent

Maity, Sourav; Patil, Pritam Bajirao; SenSharma, Sreemoyee; Sarkar, Angana

doi:10.1016/j.chemosphere.2022.136115

Cited by 28 publications

(23 citation statements)

References 97 publications

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“…It is noteworthy to report that FTIR analytical technique has not enough sensitivity to detect an adsorbate uptaken by an adsorbent, although this is a common presentation of the FTIR data in the literature [ 44 , 45 , 46 , 47 , 48 , 49 , 50 ]. Furthermore, the usual resolution of FTIR equipment is 4 cm −1 ; therefore, any band shift < 12 cm −1 could not be assigned to any bond between the adsorbate and the adsorbent.…”

Section: Resultsmentioning

confidence: 99%

Biosorption of Neodymium (Nd) from Aqueous Solutions Using Spirulina platensis sp. Strains

et al. 2022

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Rare earth elements such as neodymium (Nd) are important elements used mainly in developing new technologies. Although they are found in low concentrations in nature, they can be obtained by extracting solid samples such as phosphogypsum. Among the techniques, adsorption has been used successfully with several adsorbent materials. In this work, two strains of Spirulina platensis (LEB-18 and LEB-52) were employed as biosorbents for efficiently removing the Nd element from the aqueous media. Biosorption tests were carried out in a batch system, and the results of the biosorption kinetics showed that for both materials, the biosorption of Nd was better described by the Avrami model. Moreover, it could be considered that 80 min would be necessary to attain the equilibrium of Nd(III) using both biosorbents. The result of the biosorption isotherms showed that for both strains, the best-fitted model was the Liu model, having a maximum biosorption capacity of 72.5 mg g−1 for LEB-18 and 48.2 mg g−1 for LEB-52 at a temperature of 298 K. Thermodynamics of adsorption showed that for both LEB-18 and LEB-52 the process was favorable (∆G° < 0) and exothermic (∆H° −23.2 for LEB-18 and ∆H° −19.9 for LEB-52). Finally, both strains were suitable to uptake Nd, and the better result of LEB-18 could be attributed to the high amount of P and S groups in this biomass. Based on the results, a mechanism of electrostatic attraction of Nd3+ and phosphate and sulfate groups of both strains of Spirulina platensis was proposed.

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Section: Resultsmentioning

confidence: 99%

Biosorption of Neodymium (Nd) from Aqueous Solutions Using Spirulina platensis sp. Strains

et al. 2022

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“…Apesar de ser um excelente adsorvente, permanece um material caro de ser produzido, precisando muitas vezes da adição de agentes complexantes para melhorar sua capacidade de remoção (SANTHY; SELVAPATHY, 2004;ROUQUEROL et al, 2014;BABEL;KURNIAWAN, 2003;VAGHETTI, 2009). Além do carvão ativado, que é o adsorvente mais utilizado no tratamento de águas residuais, outros adsorventes apresentam potencial aplicação na remoção de poluentes, tais como argilas (XU et al, 2022), sílica mesoporosa funcionalizada (GUPTA; PATHAK, 2021) e a utilização de biossorventes, como a Typha angustifolia L. (PASTA, 2022), casca de melancia, casca de limão (YILMAZ; TUGRUL, 2022) e sementes de jaca (MAITY et al, 2022), por exemplo.…”

Section: Métodos De Remoção De Contaminantesunclassified

Folha De Amora (Morus Nigra L.) Como Biossorvente Para Adsorção De Cobre, Zinco E Cobalto De Amostras Aquosas

Silva¹,

GREGNANIN²,

PASTA³

et al. 2022

Ciência E Engenharia De Materiais: Princípios E Fundamentos Em Pesquisa - Volume 2

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“…In this contribution, we set out to prove that the mathematical form of the FH isotherm as used in water contaminant adsorption research is fallacious because it has been inappropriately linearized. This erroneous form of the FH isotherm can be found in all the articles listed in Table as well as the reviews cited above. − Furthermore, we draw attention to another fallacy concerning the use of faulty equilibrium constants derived from the linearized FH isotherm to calculate the Gibbs free energy change.…”

Section: Introductionmentioning

confidence: 97%

“…Since the mid-2000s, many studies have reported the modeling of water contaminant adsorption by means of the FH isotherm. Table presents a selection of such studies published across a broad spectrum of scholarly journals. − As can be seen in Table , the experimental isotherms of numerous water contaminants, ranging from toxic metals to organic compounds, have been described by the FH isotherm. The inclusion of the FH isotherm in several reviews has no doubt promoted its use in this field of research. − …”

Section: Introductionmentioning

confidence: 99%

The Flory–Huggins Isotherm and Water Contaminant Adsorption: Debunking Some Modeling Fallacies

Chu

Hashim

Bashiri

et al. 2023

Ind. Eng. Chem. Res.

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The Flory–Huggins (FH) isotherm first appeared in the literature of water contaminant adsorption in the mid-2000s. It has come into the limelight and received considerable attention in recent years, in large part due to regular coverage in review articles. Here, we point out that a linear form of the FH isotherm is incompatible with the original nonlinear version. We show conclusively that the original FH isotherm was destroyed beyond recognition by the linearization method. As a result, the linearized FH isotherm suffers from the following serious defects: (1) Its parameter estimates are incorrect and nonsensical. (2) It is not possible to plot standard isotherm curves in the form of adsorbed phase concentration versus liquid phase concentration. These anomalies, or “red flags”, that arise in the use of the linearized FH isotherm in data correlation are reported for the first time. To avoid publishing meaningless research, it is advisable to use the original form of the FH isotherm in data fitting. To go beyond routine application (e.g., simple data correlation and thermodynamic calculation), this work describes a novel application that uses the FH isotherm to evaluate the energy distribution of heterogeneous adsorbents.

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Bioremediation of heavy metals from the aqueous environment using Artocarpus heterophyllus (jackfruit) seed as a novel biosorbent

Cited by 28 publications

References 97 publications

Biosorption of Neodymium (Nd) from Aqueous Solutions Using Spirulina platensis sp. Strains

Biosorption of Neodymium (Nd) from Aqueous Solutions Using Spirulina platensis sp. Strains

Folha De Amora (Morus Nigra L.) Como Biossorvente Para Adsorção De Cobre, Zinco E Cobalto De Amostras Aquosas

The Flory–Huggins Isotherm and Water Contaminant Adsorption: Debunking Some Modeling Fallacies

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