Biosorption of cadmium, manganese, nickel, lead, and zinc ions by <i>Aspergillus tamarii</i>

Şahin, İsa; Keskin, Semra Yılmazer; Keskin, Can Serkan

doi:10.1080/19443994.2012.752332

Cited by 29 publications

(14 citation statements)

References 17 publications

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“…Owing to the large industrial applications and toxicity associated with Pb(II) and Zn(II), these two ions were selected for the removal studies from water. Various treatment techniques are available, including reduction and precipitation [7], coagulation-flocculation [8], electro-coagulation [9], adsorption [10], ion-exchange [11], reverse osmosis [12], electrodialysis [13], and membrane and ultra membrane filtration [14]. These techniques are usually expensive and, sometimes, ineffective when the concentration of metals is high [15].…”

Section: Sciencedirectmentioning

confidence: 99%

Adsorptive removal of Pb(II) and Zn(II) from water onto manganese oxide-coated sand: Isotherm, thermodynamic and kinetic studies

Chaudhry

Khan²,

Ali³

2016

Egyptian Journal of Basic and Applied Sciences

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Available online A B S T R A C TManganese oxide-coated sand, MOCS, was synthesized and characterized by XRD, FTIR, SEM, and EDX techniques, and was used for the adsorption of Pb(II) and Zn(II) from their aqueous solutions. The metal ion concentration, contact time, MOCS dose and pH of the solutions were optimized. Langmuir, Freundlich, Temkin and Dubinin-Radushkevich isotherms were studied and the maximum adsorption capacities for Pb(II) and Zn(II) were found to be 147.06 and 116.28 μg/g at 40°C and 27°C, respectively. These values are higher than many tested adsorbents. The energy 0.011 and 0.079 kJ/mol for Pb(II) and Zn(II) indicated adsorption as physical process. In thermodynamics the free energy change for Pb(II) ranged between −12.344 and −11.371 kJ/mol and that for Zn(II) ranged −9.638 to −11.155 kJ/mol between 27 and 40°C that predicted the spontaneity of process. The enthalpy change −39.816 and 25.574 kJ/mol indicated the exothermic and endothermic nature of the adsorption of Pb(II) and Zn(II). Kinetic studies indicated that Pb(II) adsorption followed pseudo-second order, whereas Zn(II) followed partial pseudo-first and pseudo-second order rates. The adsorptions of both metals were controlled by film diffusion step.

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Section: Sciencedirectmentioning

confidence: 99%

Adsorptive removal of Pb(II) and Zn(II) from water onto manganese oxide-coated sand: Isotherm, thermodynamic and kinetic studies

Chaudhry

Khan²,

Ali³

2016

Egyptian Journal of Basic and Applied Sciences

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“…But they are unsuitable for large-scale remediation due to the disadvantages of high cost, recontamination and low efficiency, especially in soil environments or farmland. Microbial remediation strategy for lead(II) contamination is considered as a promising technology with low cost, high effective and environmental-friendly properties in recent years, using bacteria, fungi, algae as well as actinomycetes (Cho and Kim 2003;Tuzun et al 2005;Akar and Tunali 2006;Sari and Tuzen 2009;Karaduman et al 2011;Sahin et al 2013;Subhashini et al 2013;Edris et al 2014). Microbes are capable of removal or immobilization lead(II) from water and soil environments through bioaccumulation, precipitation or acceleration the transformation of lead(II) into a very stable mineral mineralization (Aiking et al 1985;Mire et al 2004;De et al 2008;Park et al 2011;.…”

Section: Introductionmentioning

confidence: 99%

Investigation of lead(II) uptake by Bacillus thuringiensis 016

Chen

Pan

Chen

et al. 2015

World J Microbiol Biotechnol

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In this work, we investigated the lead(II) biosorption mechanism of Bacillus thuringiensis (Bt) 016 through batch and microscopic experiments. We found that the maximum lead(II) biosorption capacity of Bt 016 was 164.77 mg/g (dry weight). The pH value could affect the biosorption of lead(II) in a large extent. Fourier transform infrared analyses and selective passivation experiments suggested that the carboxyl, amide and phosphate functional groups of Bt 016 played an important role in lead(II) biosorption. Scanning electron microscopy observation showed that noticeable lead(II) precipitates were accumulated on bacterial surfaces. Further transmission electron microscopy thin section analysis coupled with energy dispersive X-ray spectroscopy as well as selected area electron diffraction indicated that lead(II) immobilized on the bacteria could be transformated into random-shaped crystalline lead-containing minerals eventually. This work provided a new insight into lead(II) uptake of Bt, highlighting the potential of Bt in the restoration of lead(II) contaminated repositories.

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“…Another fungi species, F. soloni , showed a positive growth rate (18.2 percent) at 200 mg/L of Cu, indicating it has some Cu toxicity tolerance (Exhibit ). According to a study conducted by Şahin, Keskin, and Keskin (), high concentrations of Cu could effectively decrease the mycelia dry weight of F. solon F. solani , while Bhatti, Samin, and Hanif () reported the fungus species was found to be effective in treating Pb (II) and Cu (II) in wastewater.…”

Section: Resultsmentioning

confidence: 99%

Biosorption study of potential fungi for copper remediation from Peninsular Malaysia

Ong

Shamkeeva

et al. 2017

Remediation

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The ability to grow in heavy metal contaminated areas and absorb heavy metals from the environment make fungi a potentially viable biological‐based technology for remediating hazardous heavy metals in soil. In this study, 10 fungi from a copper (Cu)‐polluted area in Malaysia were isolated, with the four highest growth fungi identified as Simplicillium subtropicum, Fusarium solani, Aspergillus tamari, and Aspergillus niger. Results from toxicity and biosorption testing showed that A. niger and F. solani grew the fastest in the presence of Cu, but exhibited lower Cu uptake per unit of biomoass. In contrast, A. tamarii and S. subtropicum had lower growth rates, but showed better uptake of Cu per unit of biomass. S. subtropicum was identified as the best species for bioremediation because it had the highest Cu uptake and positive growth measured in the presence of Cu at concentrations below 100 mg/L. A niger proved to be most suitable for bioremediation if the concentration of Cu exceeds 100 mg/L.

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Biosorption of cadmium, manganese, nickel, lead, and zinc ions by Aspergillus tamarii

Cited by 29 publications

References 17 publications

Adsorptive removal of Pb(II) and Zn(II) from water onto manganese oxide-coated sand: Isotherm, thermodynamic and kinetic studies

Adsorptive removal of Pb(II) and Zn(II) from water onto manganese oxide-coated sand: Isotherm, thermodynamic and kinetic studies

Investigation of lead(II) uptake by Bacillus thuringiensis 016

Biosorption study of potential fungi for copper remediation from Peninsular Malaysia

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