Modeling the sorption of metal ions from aqueous solution by iron-based adsorbents

Deliyanni, Eleni A.; Peleka, Effrosyni; Matis, K. A.

doi:10.1016/j.jhazmat.2009.07.130

Cited by 69 publications

(29 citation statements)

References 44 publications

(65 reference statements)

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“…Simulation is known to be a method for predicting the course and results of certain actions (tests), to understand why observed events occur, to identify the problem area before implementation, to explore the effects of modifications conducted, to confirm that all variables are known, and to evaluate ideas and explore inefficiencies. Sorption modelling was also investigated by surface complexation, in order to describe the process or even predict the outcome for the expected rate [40].…”

Section: Adsorbents and Flotationmentioning

confidence: 99%

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Flotation in Water and Wastewater Treatment

2018

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Flotation constitutes a separation process that originated from mineral processing. Nowadays, wider applications have been found and compared to flotation for water and wastewater treatment. Stress in the present review paper was mainly applied to heavy metal ions recovery by flotation and the respective mechanism followed, being either ion, precipitate, or sorptive flotation. In the latter case, the use of adsorbents is included (such as powdered activated carbon, zeolites, and goethite), as well as various biosorbents. The flotation of the following metals was reviewed: copper, zinc, nickel, lead, iron, chromium, arsenic, gold, and others. The bubble generation method could be applied for typical dispersed-air flotation column, electroflotation, or dissolved-air flotation; the latter being the most appropriate established technique in water treatment. The role of particle size (for example, studying flotation of salt-type mineral fines) was also examined.

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Section: Adsorbents and Flotationmentioning

confidence: 99%

“…Processes 2018, 6, x FOR PEER REVIEW 7 of 16 modelling was also investigated by surface complexation, in order to describe the process or even predict the outcome for the expected rate [40]. …”

Section: Adsorbents and Flotationmentioning

confidence: 99%

Flotation in Water and Wastewater Treatment

2018

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“…Adsorption is a common technology and considered to be effective for the remediation of these species without the production of harmful by-products [21]. Both organic and inorganic compounds of arsenic are reported in natural waters, the latter ones dominate.…”

Section: Arsenic (As) Ions Adsorptionmentioning

confidence: 99%

Activated carbons for the removal of heavy metal ions: A systematic review of recent literature focused on lead and arsenic ions

et al. 2015

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This work is a systematic review of the literature over the past decade of the application of activated carbon (microporous or mesoporous) as adsorbents for the removal of heavy metals, focusing especially on lead (Pb) and arsenic (As) ions from the aqueous phase. Classical examples from our lab are also given. Activated carbon is known to provide a high surface area for adsorption. Generally, surface modification is typically required, such as oxidation, treatment with ammonia or even impregnation with ferric ion, etc. and the adsorbent material may originate from various sources. The pristine materials, after modification and those after batch-wise adsorption, were characterized by available techniques (BET analysis, Fourier transform infrared spectroscopy, scanning electron microscopy, thermal analyses, X-ray photoelectron spectroscopy). Adsorption isotherms, thermodynamics and kinetics of the process are also discussed. Selected studies from the literature are examined in comparison with other adsorbents. The role of chemistry in the metals adsorption/removal was investigated.

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“…Therefore, sorbent quantity is being preferably used, instead of the bed height. The linear form of BDST model (Deliyanni et al, 2009) is:…”

Section: The Bdst Modelmentioning

confidence: 99%

Fixed bed column adsorption of ACID Yellow 17 dye onto Tamarind Seed Powder

Patel¹,

Vashi²

2011

Can J Chem Eng

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The intention of this study was to explore the efficacy and feasibility for Acid Yellow 17 adsorption onto fixed bed column of Tamarind Seed Powder. The effect of various parameters like flow rate, initial concentration of dye, bed height, and pH were exploited in this study. The Thomas, Yoon-Nelson, Bed Depth Service Time (BDST), and Adams and Bohart model were analysed to evaluate the column adsorption performance. The adsorption capacity, rate constant and correlation coefficient associated to each model for column adsorption was calculated and mentioned. The adsorption capacity increases with increasing initial dye concentration and bed height and decreasing flow rate. The maximum adsorption capacity related to Adams and Bohart model was found to be 978.5 mg/g at initial concentration of 50 ppm at constant flow rate of 15 mL/min, bed height of 15 cm, and pH 7.

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Modeling the sorption of metal ions from aqueous solution by iron-based adsorbents

Cited by 69 publications

References 44 publications

Flotation in Water and Wastewater Treatment

Flotation in Water and Wastewater Treatment

Activated carbons for the removal of heavy metal ions: A systematic review of recent literature focused on lead and arsenic ions

Fixed bed column adsorption of ACID Yellow 17 dye onto Tamarind Seed Powder

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