Modeling batch kinetics and thermodynamics of zinc and cadmium ions removal from waste solutions using synthetic zeolite A

El-Kamash, A.M.; Zaki, Ahmed A.; Geleel, M. Abed El

doi:10.1016/j.jhazmat.2005.07.021

Cited by 254 publications

(114 citation statements)

References 25 publications

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“…Many research studies have noted the difficulty in the diffusion of large hydrated ions into small pores as a reason for the low sorption of certain heavy metal cations [32,41,49]. For example, El-Kamash et al [49] observed that the sorption capacity of zeolite increased with increasing temperature.…”

Section: Pore Sizementioning

confidence: 99%

Influence of Physical and Chemical Parameters on the Treatment of Heavy Metals in Polluted Stormwater Using Zeolite—A Review

Ziyath¹,

Mahbub²,

Goonetilleke³

et al. 2011

JWARP

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Zeolite-based technology can provide a cost effective solution for stormwater treatment for the removal of toxic heavy metals under increasing demand of safe water from alternative sources. This paper reviews the currently available knowledge relating to the effect of properties of zeolites such as pore size, surface area and Si:Al ratio and the physico-chemical conditions of the system such as pH, temperature, initial metal concentration and zeolite concentration on heavy metal removal performance. The primary aims are, to consolidate available knowledge and identify knowledge gaps. It was established that an in-depth understanding of operational issues such as, diffusion of metal ions into the zeolite pore structure, pore clogging, zeolite surface coverage by particulates in stormwater as well as the effect of pH on stormwater quality in the presence of zeolites is essential for developing a zeolite-based technology for the treatment of polluted stormwater. The optimum zeolite concentration to treat typical volumes of stormwater and initial heavy metal concentrations in stormwater should also be considered as operational issues in this regard. Additionally, leaching of aluminium and sodium ions from the zeolite structure to solution were identified as key issues requiring further research in the effort to develop cost effective solutions for the removal of heavy metals from stormwater.

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Section: Pore Sizementioning

confidence: 99%

Influence of Physical and Chemical Parameters on the Treatment of Heavy Metals in Polluted Stormwater Using Zeolite—A Review

Ziyath¹,

Mahbub²,

Goonetilleke³

et al. 2011

JWARP

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“…The results of the kinetic studies was analyzed using a pseudo second order rate equation [29][30][31][32]. This equation may be expressed as;…”

Section: Kinetic Resultsmentioning

confidence: 99%

The sorption behavior of Cs + ion on clay minerals and zeolite in radioactive waste management: sorption kinetics and thermodynamics

Yıldız

Erten

Kış

2011

J Radioanal Nucl Chem

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In this work, Cs? ion sorption on some clays and zeolite were investigated. 137 Cs was used as a tracer. Activities were measured with a NaI crystal gamma counter. The particle size distribution was determined by a laser sizer. Surface area of the particles were determined by BET (Brunauer, Emmett and Teller method). Structure analysis was made by using X-ray diffraction. The chemical compositions of the solid samples were determined using a ICAP-OE spectrometer. Kinetic and thermodynamic parameters were determined. Due to very high uptake results; clay and zeolite can be proposed as a good sorbents in waste management considerations.

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“…Similar results have also been reported for sorption of copper by oyster shell powder (Hsu 2009). This increase in sorption capacity with temperature suggested that the active surfaces available for sorption have increased with temperature (El-Kamash et al 2005). From data of sorption capacity, (Q 0 ), t was shown that alkali-leached SiO 2 is more favorable for sorption of Cu 2?…”

Section: Langmuir Isotherm Modelmentioning

confidence: 98%

Removal of copper ions from aqueous solution using silica derived from rice straw: comparison with activated charcoal

Sharaf

Hassan

2013

Int. J. Environ. Sci. Technol.

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The batch removal of copper(II) ions from aqueous solution under different experimental conditions using alkali-leached silica and activated charcoal was investigated in this study. The copper(II) uptake was dependent on varying time, pH, copper concentration and temperature. Copper sorption was found fast reaching equilibrium within 1 h with better performance for alkalileached silica than charcoal. Copper sorption was low at low pH values and increased with rise in initial pH-value until 6.7. Sorption fits well the Langmuir and Freundlich equations with higher uptake by increasing temperature. According to Langmuir equation, the maximum uptake of Cu(II) ions by alkali-leached SiO 2 and charcoal was found to be 242.5 and 94.4 mmol/g at temperature 60°C and pH 6. Thermodynamic studies confirm that the process was spontaneous and endothermic nature. Kinetic data for Cu(II) sorption was found to follow pseudo-second-order model.

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Modeling batch kinetics and thermodynamics of zinc and cadmium ions removal from waste solutions using synthetic zeolite A

Cited by 254 publications

References 25 publications

Influence of Physical and Chemical Parameters on the Treatment of Heavy Metals in Polluted Stormwater Using Zeolite—A Review

Influence of Physical and Chemical Parameters on the Treatment of Heavy Metals in Polluted Stormwater Using Zeolite—A Review

The sorption behavior of Cs + ion on clay minerals and zeolite in radioactive waste management: sorption kinetics and thermodynamics

Removal of copper ions from aqueous solution using silica derived from rice straw: comparison with activated charcoal

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