Author
Tülin Kutsal
Bio: Tülin Kutsal is an academic researcher from Hacettepe University. The author has contributed to research in topics: Biosorption & Adsorption. The author has an hindex of 32, co-authored 63 publications receiving 3658 citations.
Papers published on a yearly basis
Papers
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TL;DR: In this article, the authors used the Freundlich and Langmuir adsorption models for describing the short-term biosorption of copper(II), nickel(II) and chromium(VI) by all three algae species.
560 citations
TL;DR: In this article, the initial pH of the metal ion solution effected metal uptake capacity of the biomass and the optimum initial pH was found as 1·−2·0 for all microorganisms.
279 citations
TL;DR: In this article, the adsorption of copper(II) ions to dead cells of Chlorella vulgaris and Zoogloea ramigera was investigated and the optimum initial pH was found to be 4.0-4.5 for both microorganisms.
Abstract: The adsorption of copper(II) ions to dead cells of Chlorella vulgaris and Zoogloea ramigera was investigated. Optimum initial pH of the adsorption medium was found to be 4.0–4.5 for both microorganisms. In general, higher adsorptive uptake was observed at 25°C. The initial adsorption rate of metal ion increased by increasing metal ion concentration for C. vulgaris and Z. ramigera up to 150–200 mg l‐1 and 100–125 mg l‐1, respectively. Freundlich constants were determined from the Freundlich adsorption isotherms of two microorganisms.
187 citations
TL;DR: Fe(III), Cr(VI) and Pb(II) biosorption is determined to be an endothermic process since increased binding occurs as the temperature is increased in the range 15-45 degrees C.
183 citations
TL;DR: In this article, the optimum conditions for heavy metal removal in an activated sludge bacterium were determined. But the results were limited to the case of lead, copper, nickel, and iron.
Abstract: The biosorption of lead(II), copper(II), nickel(II), and iron(III) ions on Zoogloea ramigera, an activated sludge bacterium, was studied with respect to adsorption pH and temperature in order to determine the optimum conditions for heavy metal removal. Optimum initial pH for the biosorption of lead(II), nickel(II) and copper(II) ions by Z. ramigera was determined as 4.0–4.5 whereas higher biosorptive uptake of iron(III) ions by Z. ramigera was obtained at pH 2.0. Maximum biosorption rates of nickel(II) and copper(II) ions by Z. ramigera where obtained at 25°C, while the initial biosorption rates and the adsorptive capacity of the biomass for lead(II) and iron(III) ions increased with increasing temperatures in the range 25–45°C. The adsorption isotherms were developed for optimum conditions and it was seen that the adsorption equilibrium data fit both Freundlich and Langmuir isotherms within the metal ion concentrations studied (25–200 mg 1−1). The adsorption constants for lead(II) and iron(III) were higher than those for nickel(II) and copper(II) for both Langmuir and Freundlich models.
166 citations
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TL;DR: The biosorbents widely used for heavy metal removal were reviewed, mainly focusing on their cellular structure, biosorption performance, their pretreatment, modification, regeneration/reuse, modeling of biosor adaptation (isotherm and kinetic models), the development of novel biosorbent, their evaluation, potential application and future.
2,281 citations
TL;DR: In this article, a review examines a wide variety of microorganisms (fungi, yeasts, bacteria, etc.), which are capable of uptake of organic pollutants, discusses various mechanisms involved in biosorption, discusses the effects of various parameters such as pH, temperature, concentrations of organic pollutant, other ions, and biomass in solution, pretreatment method, etc.
1,825 citations
TL;DR: The sorption capacities of commercial developed carbons and other low cost sorbents for chromium remediation are provided, and particular attention is paid to comparing the sorption efficiency and capacities of commercially available activated carbons to otherLow cost alternatives.
1,611 citations
TL;DR: The present review highlights the necessity for the examination of biosorbents within real situations, as competition between solutes and water quality may affect the biosorption performance.
1,584 citations
TL;DR: The purpose of this paper is to review the available information on various attributes of utilization of microbial and plant derived biomass and explores the possibility of exploiting them for heavy metal remediation.
1,466 citations