Biosorption of nickel(II) ions by baker’s yeast: Kinetic, thermodynamic and desorption studies

Padmavathy, V.

doi:10.1016/j.biortech.2007.05.070

Cited by 183 publications

(84 citation statements)

References 41 publications

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“…Buda adsorpsiyon üzerine ters etki yapmış olabilir. Aynı zamanda artan sıcaklıkla adsorbe edilen miktarın azalmasına adsorbent üzerindeki aktif bağ sitelerinin zarar görmüş olabileceği de söylenebilir [19]. Bu davranış adsorpsiyon prosesinin ekzotermik karakterli olduğunu göstermektedir.…”

Section: Deneysel Tasarım Ve Optimizasyonunclassified

Application of response surface methodology for optimization of Co(II) adsorption conditions with natural pumice mineral

Şahan¹,

Yılmaz²

2017

Pamukkale J Eng Sci

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Pomza mineralleri ülkemizde bol miktarda bulunan ve farklı kullanım alanına sahip gözenekli bir malzemedir. Doğal pomza, boşluklu, süngerimsi, volkanik faaliyetler sonucunda oluşmuş, fiziksel ve kimyasal etkilere karşı dayanıklılığı yüksek, gözenekli camsı bir kayaçtır. Oluşum evresinde, yapısında bulunan gazların (flor, klor, su buharı gibi), hızlı bir şekilde yapıdan ayrılması ve aniden soğuması sebebiyle, sayısız gözeneği yapısında barındırır [11]. Doğal pomza, zararsız atık üretmemesi doğada ucuz ve bol olarak bulunması ve kolay elde edilebilir olması bakımından ağır metal adsorpsiyonu için çok

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Section: Deneysel Tasarım Ve Optimizasyonunclassified

Application of response surface methodology for optimization of Co(II) adsorption conditions with natural pumice mineral

Şahan¹,

Yılmaz²

2017

Pamukkale J Eng Sci

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“…3). With this aim, different eluants have been tested such as diluted inorganic and organic acids, bases and chelating agents (Strandberg et al 1981;Duncan 1995, 1996;Ferraz et al 2004;Padmavathy 2008;Yu et al 2008;Kordialik-Bogacka 2011). Nevertheless, some practical difficul-ties have been observed, which compromise, strongly, the feasi-bility of the desorption process: (a) the deterioration of the yeast cells particularly when concentrated acids or prolonged exposure times were used; (b) the reduction of metal uptake through the successive biosorption/desorption cycles; and (c) the lower metal concentration capacity (Strandberg et al 1981;Ferraz et al 2004;Kordialik-Bogacka 2011).…”

Section: Metals Selective Recoverymentioning

confidence: 99%

Cleanup of industrial effluents containing heavy metals: a new opportunity of valorising the biomass produced by brewing industry

Soares

2013

Appl Microbiol Biotechnol

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Heavy metal pollution is a matter of concern in industrialised countries. Contrary to organic pollutants, heavy metals are not metabolically degraded. This fact has two main consequences: its bioremediation requires another strategy and heavy metals can be indefinitely recycled. Yeast cells of Saccharomyces cerevisiae are produced at high amounts as a by-product of brewing industry constituting a cheap raw ma-terial. In the present work, the possibility of valorising this type of biomass in the bioremediation of real industrial efflu-ents containing heavy metals is reviewed. Given the auto-aggregation capacity (flocculation) of brewing yeast cells, a fast and off-cost yeast separation is achieved after the treat-ment of metal-laden effluent, which reduces the costs associ-ated with the process. This is a critical issue when we are looking for an effective, eco-friendly, and low-cost technolo-gy. The possibility of the bioremediation of industrial effluents linked with the selective recovery of metals, in a strategy of simultaneous minimisation of environmental hazard of indus-trial wastes with financial benefits from reselling or recycling the metals, is discussed.

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“…The methods for biomass regeneration consist of diluted (0.1 mol/L) mineral (HCl, HNO 3 and H 2 SO 4 ) (Ferraz et al 2004;Kordialik-Bogacka 2011;Padmavathy 2008;Strandberg et al 1981;Wilhelmi and Duncan 1995;Wilhelmi and Duncan 1996) and organic acids (CH 3 COOH) (Ferraz et al 2004), bases (Na 2 SO 4 , Na 2 CO 3 , CaCO 3 , NaOH, KOH), salts (KCl, CaCl 2 ) (Kordialik-Bogacka 2011; Strandberg et al 1981;Wilhelmi and Duncan 1996) and a chelating agent (EDTA) (Ferraz et al 2004;KordialikBogacka 2011;Strandberg et al 1981;Yu et al 2008). However, some practical difficulties have been observed, including the production of damage to the yeast cells because of the desorption process, particularly when concentrated acids or prolonged exposure times are used, a reduction in yeast metal uptake ability during the successive biosorption/desorption cycles and, in some cases, a decrease in capacity to concentrate the metals in a small volume of solution (Ferraz et al 2004;KordialikBogacka 2011;Strandberg et al 1981).…”

Section: Regeneration or Destruction Of Yeast Biomass?mentioning

confidence: 99%

Bioremediation of industrial effluents containing heavy metals using brewing cells of Saccharomyces cerevisiae as a green technology: a review

Soares

2011

Environ Sci Pollut Res

129

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The release of heavy metals into the environment, mainly as a consequence of anthropogenic activities, constitutes a worldwide environmental pollution problem. Unlike organic pollutants, heavy metals are not degraded and remain indefinitely in the ecosystem, which poses a different kind of challenge for remediation. It seems that the "best treatment technologies" available may not be completely effective for metal removal or can be expensive; therefore, new methodologies have been proposed for the detoxification of metal-bearing wastewaters. The present work reviews and discusses the advantages of using brewing yeast cells of Saccharomyces cerevisiae in the detoxification of effluents containing heavy metals. The current knowledge of the mechanisms of metal removal by yeast biomass is presented. The use of live or dead biomass and the influence of biomass inactivation on the metal accumulation characteristics are outlined. The role of chemical speciation for predicting and optimising the efficiency of metal removal is highlighted. The problem of biomass separation, after treatment of the effluents, and the use of flocculent characteristics, as an alternative process of cell-liquid separation, are also discussed. The use of yeast cells in the treatment of real effluents to bridge the gap between fundamental and applied studies is presented and updated. The convenient management of the contaminated biomass and the advantages of the selective recovery of heavy metals in the development of a closed cycle without residues (green technology) are critically reviewed.

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Biosorption of nickel(II) ions by baker’s yeast: Kinetic, thermodynamic and desorption studies

Cited by 183 publications

References 41 publications

Application of response surface methodology for optimization of Co(II) adsorption conditions with natural pumice mineral

Application of response surface methodology for optimization of Co(II) adsorption conditions with natural pumice mineral

Cleanup of industrial effluents containing heavy metals: a new opportunity of valorising the biomass produced by brewing industry

Bioremediation of industrial effluents containing heavy metals using brewing cells of Saccharomyces cerevisiae as a green technology: a review

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