Characterization of cadmium adsorption on two cost-effective biochars for water treatment

Taghlidabad, Roghaie Hamzenejad; Sepehr, Ebrahim; Khodaverdiloo, Habib; Samadi, Abbas; Rasouli-Sadaghiani, MirHassan

doi:10.1007/s12517-020-05477-6

Cited by 17 publications

(5 citation statements)

References 35 publications

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“…Moreover, when the initial MO concentration was increased, the MO removal was reduced; this behavior can be associated with the overload of the available sites for dye anchoring on the PJW surface. Similar behaviors have been reported to Cd adsorption on biochar [59,78]. Figure 8a shows the effect of pH solution on MO removal using PJW.…”

Section: Kinetic Study Of Mo Adsorption On Pjw Biocharsupporting

confidence: 81%

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Methyl Orange Adsorption on Biochar Obtained from Prosopis juliflora Waste: Thermodynamic and Kinetic Study

Diaz-Uribe,

Ortiz,

Duran

et al. 2023

ChemEngineering

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In the information contained herein, we fabricated biochar by means of a pyrolysis process; it used Prosopis juliflora waste (PJW) as a biomass source. The physical and chemical material characterization was carried out through FTIR, thermogravimetric, BET-N2 isotherm, and SEM-EDX assays. We studied the methylene orange (MO) adsorption onto PWJ biochar. The PJW biochar displayed a maximum percentage of MO removal of 64%. The results of the adsorption study indicated that Temkin isotherm was suitable to describe the MO adsorption process on PJW biochar; it suggests that the MO adsorption on PJW biochar could be a multi-layer adsorption process. Results showed that the pseudo-second-order model was accurate in demonstrating the MO adsorption on PJW (k2 = 0.295 g mg−1min−1; qe = 8.31 mg g−1). Furthermore, the results made known that the MO removal by PJW biochar was endothermic (ΔH = 12.7 kJ/mol) and a spontaneous process (ΔG = −0.954 kJ/mol). The reusability test disclosed that after four consecutive adsorption/desorption cycles, the PWJ biochar reduced its MO removal by only 4.3%.

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Section: Kinetic Study Of Mo Adsorption On Pjw Biocharsupporting

confidence: 81%

“…where C t (mg/L) is the MO concentration in the solution as a function of time. To model kinetic results, we utilized the pseudo-first-order (2) [59]:…”

Section: Kinetic and Thermodynamic Studymentioning

confidence: 99%

Methyl Orange Adsorption on Biochar Obtained from Prosopis juliflora Waste: Thermodynamic and Kinetic Study

Diaz-Uribe,

Ortiz,

Duran

et al. 2023

ChemEngineering

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“…Moreover, physical adsorption also happens quicker although this process is reversible. Nevertheless, chemical adsorption tends to be more stable thanks to the strong forces (bonding) between the absorbate and the adsorbent established through the adsorption process …”

Section: Process Design and Sustainability Of Wastewater Treatment Te...mentioning

confidence: 99%

“…Nevertheless, chemical adsorption tends to be more stable thanks to the strong forces (bonding) between the absorbate and the adsorbent established through the adsorption process. 85 The Gibbs free energy required for both physical and chemical adsorption processes can be calculated by eq 1. 86 where dG ads , dH ads , and dS ads represent the adsorption Gibbs free energy, the adsorption enthalpy, and the adsorption entropy, respectively, while T is the temperature of the system.…”

Section: Process Design and Sustainability Of Wastewater Treatment Te...mentioning

confidence: 99%

Section: Process Design and Sustainability Of Wastewater Treatment Te...mentioning

confidence: 99%

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Process Technology and Sustainability Assessment of Wastewater Treatment

Tran

Escribà‐Gelonch

Sarafraz

et al. 2023

Ind. Eng. Chem. Res.

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Removal of heavy metals in wastewater treatment is crucial to protect the environment, wildlife, and human health. Various techniques have been developed focusing on removal of heavy metal ions, pharmaceuticals, and other contaminants from different wastewater sources. The main methods include adsorption, filtration, ion exchange, electrochemical, reverse osmosis, precipitation, flotation/coagulation/ flocculation, and photocatalytic-based treatments. This paper comprehensively assesses the sustainability of those common technologies used for wastewater process treatment. The sustainability profile depends mostly on the exact approach followed for each technology, including its energy consumption, type of radiation (where appropriate), auxiliary materials used (e.g., catalysts, adsorbents), and further specific experimental process settings. Thus, while sustainability inevitably provides a multifaceted answer, the review finally aims for sustainability benchmarking of all technologies, by compressing the manifold outcomes toward a compact information set, such as a table and radar plot.

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Cadmium (II) Removal from Aqueous Solution by Magnetic Biochar Composite Produced from KOH-Modified Poplar Sawdust Biochar

Zhang

Huang

et al. 2022

The Minerals, Metals &Amp; Materials Series

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Characterization of cadmium adsorption on two cost-effective biochars for water treatment

Cited by 17 publications

References 35 publications

Methyl Orange Adsorption on Biochar Obtained from Prosopis juliflora Waste: Thermodynamic and Kinetic Study

Methyl Orange Adsorption on Biochar Obtained from Prosopis juliflora Waste: Thermodynamic and Kinetic Study

Process Technology and Sustainability Assessment of Wastewater Treatment

Cadmium (II) Removal from Aqueous Solution by Magnetic Biochar Composite Produced from KOH-Modified Poplar Sawdust Biochar

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