Modelling Sorption Processes of Trace Elements by Earth Surface Materials

Fukushi, Keisuke

doi:10.5026/jgeography.126.325

Cited by 5 publications

(2 citation statements)

References 41 publications

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“…The interactions between metallic ions and mineral surfaces in any environment allow the sorption of ions to the solid surface, thereby decreasing the concentration of ions in the aqueous phases below the solubility limits of the solid phase [35]. Determination of partitioning of heavy metals among the solid phase and accurately predicting their mobility in natural environment requires adequate knowledge of the chemical process such as ion exchange, adsorption, surface precipitation, coprecipitation and mineralisation, that govern sorption mechanism [36]. For example, cobalt sorbs to goethite through surface complexation, surface precipitate and structural incorporation depending on the concentration and sorption duration [37].…”

Section: Adsorption Mechanism and Models 21 Adsorption Mechanismmentioning

confidence: 99%

Sorption of Heavy Metals on Clay Minerals and Oxides: A Review

Ugwu¹,

Igbokwe²

2019

Advanced Sorption Process Applications

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Section: Adsorption Mechanism and Models 21 Adsorption Mechanismmentioning

confidence: 99%

Sorption of Heavy Metals on Clay Minerals and Oxides: A Review

Ugwu¹,

Igbokwe²

2019

Advanced Sorption Process Applications

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“…This is the reason why this work intends utilizing a blended membrane of immobilized karkashi leaves and sodium alginate to remove metallic ions from waste water. Immobilization of plant cells facilitates continuous process and physical separation between the cell and reaction medium and also allows reuse of the cells [11].…”

Section: Introductionmentioning

confidence: 99%

Sorption of Pb2+, Cu2+ and Zn2+ from Aqueous Solution Using a Blended Membrane of Immobilized Karkashi (Sesame Leaves) and Sodium Alginate

Maradona

Kanus²,

Stephen³

2020

CSIJ

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Sorption techniques are widely used to remove heavy metal ions from large volume of aqueous solutions, this plays a vital role in controlling environmental pollution. Herein, the sorption of Pb 2+ , Cu 2+ and Zn 2+ with blended membrane of sodium alginate (Na-Alg) and immobilized karkashi leaves (IKAL) from aqueous solution was investigated at optimum conditions for effectiveness. Sorption capacities of the membrane for Pb 2+ , Cu 2+ and Zn 2+ were found to be 86.80, 40.60 and 39.55% respectively. The sorption behavior with respect to initial pH, ionic strength, temperature, contact time and initial metal ion concentration was investigated for optimum sorption conditions. Maximum sorption was found to occur at pH 3.0 for all the metal ions studied. Results showed that metallic ion uptake by the blended membrane declined with increase in ionic strength. This trend was also observed at an increased temperature of 50ºC for Pb 2+ , Cu 2+ and 40ºC for Zn 2+ . Increase in initial metal ion concentration led to increase in metal ion uptake. At the end of the chemical remediation, the blended membrane was found to be effective to some extent, with the reaction being exothermic.

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Experimental and numerical study for the adsorption behavior of Cu(II) and Mn(II) in quartz sand

Gharbia

Zákányi

Tóth

2022

Sustain. Water Resour. Manag.

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Heavy metals such as Cu(II) and Mn(II) are prevalent in the environment. The effect of heavy metals on the soils environment is based on the ability of soils to mobilize these contaminants. According to the soil decontamination perspective, examining the reaction technique between heavy metals and soil is indispensable. This study carried out experiments to investigate Cu(II) and Mn(II) adsorption behaviour in quartz sand. The isothermal adsorption results for Cu(II) and Mn(II) presented that the adsorption capacity reached the peak value when the initial concentration was about 10 mg/L. The declines of H+ ions could uprise the adsorption rate activity for Cu(II) and Mn(II) and decrease the soil ability of the desorption for Cu(II) and Mn(II) ions. The adsorption rate of Cu(II) and Mn(II) is lower than the desorption rate under the situation of a low pH range with a solid acidic and low concentration of Cu(II) and Mn(II). The Freundlich and Langmuir adsorption isotherm models were applied to investigate the adsorption isotherm of Cu(II) and Mn(II). The study results confirmed that the Freundlich model synchronous the best with the observed experimental data compared with the Langmuir solution.

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Modelling Sorption Processes of Trace Elements by Earth Surface Materials

Cited by 5 publications

References 41 publications

Sorption of Heavy Metals on Clay Minerals and Oxides: A Review

Sorption of Heavy Metals on Clay Minerals and Oxides: A Review

Sorption of Pb2+, Cu2+ and Zn2+ from Aqueous Solution Using a Blended Membrane of Immobilized Karkashi (Sesame Leaves) and Sodium Alginate

Experimental and numerical study for the adsorption behavior of Cu(II) and Mn(II) in quartz sand

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