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Maja Radetic - One of the best experts on this subject based on the ideXlab platform.
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the study of sorption of toxic basic dyes from aqueous solutions on h2o 2 treated recycled wool based Nonwoven Material and related toxicity analysis
Textile Research Journal, 2009Co-Authors: Vesna Ilic, Darinka Radojevic, Darka Mihailovic, Maja Radetic, Petar Jovancic, Marinella Farre, Damia BarceloAbstract:The aim of this study was to investigate the potential use of recycled wool-based Nonwoven Material for removal of basic dyes C.I. Basic Yellow 28 and C.I. Basic Red 46 from aqueous solutions. To improve the sorption properties, the recycled wool-based Nonwoven Material was treated with hydrogen peroxide. The sorption capacity, the sorption kinetics, and the influence of initial dye concentration and pH on the sorption were studied. The acute toxicity of dyes was evaluated using a ToxAlert® 100 biological test, which is based on inhibition of the bioluminescence of Vibrio fischeri . The percent of inhibition (%I) before and after the sorption, 50 % effective concentration (EC50) and toxicity units (TU) were determined. The results indicated that recycled wool-based Nonwoven Material can be used as an efficient sorbent for removal of investigated basic dyes. Hydrogen peroxide treatment considerably improved the sorption properties of the Material for both dyes. The sorption kinetics of dyes on the hydrogen...
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efficiency of recycled wool based Nonwoven Material for the removal of oils from water
Chemosphere, 2008Co-Authors: Maja Radetic, D. Jocic, Vesna Ilic, Darinka Radojevic, Robert Miladinovic, Petar JovancicAbstract:The aim of this study was to highlight the potential use of recycled wool-based Nonwoven Material for the removal of diesel fuel, crude, base, vegetable and motor oil from water. Sorption capacity of the Material in water and in oil without water, oil retention, sorbent reusability and buoyancy in static and dynamic conditions were investigated. The results show high sorption capacity of recycled wool for different kinds of oil. This sorbent also exhibited excellent buoyancy after 24 h of sorption as well as a good reusability since the decrease in sorption capacity did not exceed 50% of the initial value after five sorption cycles in oil without water.
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efficiency of oil removal from real wastewater with different sorbent Materials
Journal of Hazardous Materials, 2007Co-Authors: V Rajakovic, G Aleksic, Maja Radetic, Lj V RajakovicAbstract:Abstract The aim of this paper was to investigate the efficiency of different sorbent Materials for oil removal from wastewater. Two types of sorbents were investigated: organic (loose natural wool fibers (NWF) and recycled wool based Nonwoven Material (RWNM)) and inorganic (sepiolite). Sorption was carried out in continuous tubular contractor (initial oil concentration of 1511 mg/dm 3 ) and batch tank (initial oil concentration of 5066 mg/dm 3 ). Wool-based sorbents showed higher sorption capacity (5.56 g/g for NWF and 5.48 g/g for RWNM) compared to sepiolite (0.19 g/g) in case of sorption in batch tank. The study on sorption in continuous tubular contractor suggested that volume of oily wastewater strongly affected oil removal. The results indicated that the combination of extractive-gravimetric and FTIR spectrophotometric methods can be recommended for precise determination of oil concentration, being suitable as a controlling tool for oil detection.
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recycled wool based Nonwoven Material as a sorbent for lead cations
Journal of Applied Polymer Science, 2003Co-Authors: Maja Radetic, D. Jocic, H. Thomas, Petar Jovancic, L Rajakovic, Zoran Lj PetrovicAbstract:The aim of this study was to investigate the sorption properties of a recycled-wool-based Nonwoven Material for lead cations. To improve sorption properties, the Material was treated with low-temperature air plasma and/or the biopolymer chitosan. The rate and extent of the uptake of lead cations by wool, the kinetics of adsorption, and the influence of concentration, pH, temperature, and mechanical agitation on the sorption process were determined. Changes in the electrokinetic properties of the sorbent were also investigated. Wool, even as a recycled Material, efficiently bound lead cations in all of the investigated cases. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 379–386, 2003
Petar Jovancic - One of the best experts on this subject based on the ideXlab platform.
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the study of sorption of toxic basic dyes from aqueous solutions on h2o 2 treated recycled wool based Nonwoven Material and related toxicity analysis
Textile Research Journal, 2009Co-Authors: Vesna Ilic, Darinka Radojevic, Darka Mihailovic, Maja Radetic, Petar Jovancic, Marinella Farre, Damia BarceloAbstract:The aim of this study was to investigate the potential use of recycled wool-based Nonwoven Material for removal of basic dyes C.I. Basic Yellow 28 and C.I. Basic Red 46 from aqueous solutions. To improve the sorption properties, the recycled wool-based Nonwoven Material was treated with hydrogen peroxide. The sorption capacity, the sorption kinetics, and the influence of initial dye concentration and pH on the sorption were studied. The acute toxicity of dyes was evaluated using a ToxAlert® 100 biological test, which is based on inhibition of the bioluminescence of Vibrio fischeri . The percent of inhibition (%I) before and after the sorption, 50 % effective concentration (EC50) and toxicity units (TU) were determined. The results indicated that recycled wool-based Nonwoven Material can be used as an efficient sorbent for removal of investigated basic dyes. Hydrogen peroxide treatment considerably improved the sorption properties of the Material for both dyes. The sorption kinetics of dyes on the hydrogen...
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efficiency of recycled wool based Nonwoven Material for the removal of oils from water
Chemosphere, 2008Co-Authors: Maja Radetic, D. Jocic, Vesna Ilic, Darinka Radojevic, Robert Miladinovic, Petar JovancicAbstract:The aim of this study was to highlight the potential use of recycled wool-based Nonwoven Material for the removal of diesel fuel, crude, base, vegetable and motor oil from water. Sorption capacity of the Material in water and in oil without water, oil retention, sorbent reusability and buoyancy in static and dynamic conditions were investigated. The results show high sorption capacity of recycled wool for different kinds of oil. This sorbent also exhibited excellent buoyancy after 24 h of sorption as well as a good reusability since the decrease in sorption capacity did not exceed 50% of the initial value after five sorption cycles in oil without water.
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recycled wool based Nonwoven Material as a sorbent for lead cations
Journal of Applied Polymer Science, 2003Co-Authors: Maja Radetic, D. Jocic, H. Thomas, Petar Jovancic, L Rajakovic, Zoran Lj PetrovicAbstract:The aim of this study was to investigate the sorption properties of a recycled-wool-based Nonwoven Material for lead cations. To improve sorption properties, the Material was treated with low-temperature air plasma and/or the biopolymer chitosan. The rate and extent of the uptake of lead cations by wool, the kinetics of adsorption, and the influence of concentration, pH, temperature, and mechanical agitation on the sorption process were determined. Changes in the electrokinetic properties of the sorbent were also investigated. Wool, even as a recycled Material, efficiently bound lead cations in all of the investigated cases. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 379–386, 2003
D. Jocic - One of the best experts on this subject based on the ideXlab platform.
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efficiency of recycled wool based Nonwoven Material for the removal of oils from water
Chemosphere, 2008Co-Authors: Maja Radetic, D. Jocic, Vesna Ilic, Darinka Radojevic, Robert Miladinovic, Petar JovancicAbstract:The aim of this study was to highlight the potential use of recycled wool-based Nonwoven Material for the removal of diesel fuel, crude, base, vegetable and motor oil from water. Sorption capacity of the Material in water and in oil without water, oil retention, sorbent reusability and buoyancy in static and dynamic conditions were investigated. The results show high sorption capacity of recycled wool for different kinds of oil. This sorbent also exhibited excellent buoyancy after 24 h of sorption as well as a good reusability since the decrease in sorption capacity did not exceed 50% of the initial value after five sorption cycles in oil without water.
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Recycled wool-based Nonwoven Material for sorption of acid dyes
2005Co-Authors: Maja M. Radetić, Petar Jovančić, D. Jocic, Z. Lj. Petrović, H. ThomasAbstract:The possibility of using a Nonwoven Material based on recycled wool for sorption of acid dyes from wastewater has been studied. To improve its sorption properties, the recycled wool-based Nonwoven Material was treated with low temperature air plasma and/or biopolymer chitosan. These treatments introduced new favourable functional groups and increased the active surface area. Sorption capacity, sorption kinetics as well as the influence of electrochemical properties of fibre, initial dye concentration, pH and temperature on the sorption have been studied. It is observed that the Nonwoven recycled wool-based Material can be used as an efficient sorbent for removal of acid dyes. Chitosan an d plasma+chitosan treatments of the Material remarkably improved the sorption properties for AR88 and AR27 dyes, likely because of the increase in amino groups originating from chitosan that are the main sites for binding of dye anions. However, no significant positive effect of low-temperature plasma and/or chitosan treatment of Material on sorption of AB 113 dye was observed.
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recycled wool based Nonwoven Material as a sorbent for lead cations
Journal of Applied Polymer Science, 2003Co-Authors: Maja Radetic, D. Jocic, H. Thomas, Petar Jovancic, L Rajakovic, Zoran Lj PetrovicAbstract:The aim of this study was to investigate the sorption properties of a recycled-wool-based Nonwoven Material for lead cations. To improve sorption properties, the Material was treated with low-temperature air plasma and/or the biopolymer chitosan. The rate and extent of the uptake of lead cations by wool, the kinetics of adsorption, and the influence of concentration, pH, temperature, and mechanical agitation on the sorption process were determined. Changes in the electrokinetic properties of the sorbent were also investigated. Wool, even as a recycled Material, efficiently bound lead cations in all of the investigated cases. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 379–386, 2003
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Recycled‐wool‐based Nonwoven Material as a sorbent for lead cations
Journal of Applied Polymer Science, 2003Co-Authors: Maja Radetić, Petar Jovančić, D. Jocic, H. Thomas, L. Rajaković, Zoran Lj. PetrovićAbstract:The aim of this study was to investigate the sorption properties of a recycled-wool-based Nonwoven Material for lead cations. To improve sorption properties, the Material was treated with low-temperature air plasma and/or the biopolymer chitosan. The rate and extent of the uptake of lead cations by wool, the kinetics of adsorption, and the influence of concentration, pH, temperature, and mechanical agitation on the sorption process were determined. Changes in the electrokinetic properties of the sorbent were also investigated. Wool, even as a recycled Material, efficiently bound lead cations in all of the investigated cases. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 379–386, 2003
Darinka Radojevic - One of the best experts on this subject based on the ideXlab platform.
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Recycled wool‐based Nonwoven Material for decolorisation of dyehouse effluents
International Journal of Clothing Science and Technology, 2009Co-Authors: Maja Radetić, Darinka Radojevic, Vesna Ilić, Darka Mihailović, Petar JovančićAbstract:Purpose – The purpose of this paper is to investigate the possible application of recycled wool‐based Nonwoven Material (RWNM) for removal of different dyes that are used in textile dye houses.Design/methodology/approach – The sorption kinetics, the influence of initial dye concentration, pH and temperature are analyzed. Basic, reactive, direct and metal complex dyes are studied.Findings – The sorption properties are highly influenced by the type of the dye owing to differences in their chemical structure and thus, the mechanism of binding to wool. Modification of Material with chitosan and hydrogen peroxide improves the sorption capacities and sorption rates but no general trend can be established. Consequently, the sorption behaviour is analyzed separately for each type of the dye.Originality/value – The results indicate that RWNM can be used as an efficient, low‐cost sorbent for decolorisation of effluents.
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the study of sorption of toxic basic dyes from aqueous solutions on h2o 2 treated recycled wool based Nonwoven Material and related toxicity analysis
Textile Research Journal, 2009Co-Authors: Vesna Ilic, Darinka Radojevic, Darka Mihailovic, Maja Radetic, Petar Jovancic, Marinella Farre, Damia BarceloAbstract:The aim of this study was to investigate the potential use of recycled wool-based Nonwoven Material for removal of basic dyes C.I. Basic Yellow 28 and C.I. Basic Red 46 from aqueous solutions. To improve the sorption properties, the recycled wool-based Nonwoven Material was treated with hydrogen peroxide. The sorption capacity, the sorption kinetics, and the influence of initial dye concentration and pH on the sorption were studied. The acute toxicity of dyes was evaluated using a ToxAlert® 100 biological test, which is based on inhibition of the bioluminescence of Vibrio fischeri . The percent of inhibition (%I) before and after the sorption, 50 % effective concentration (EC50) and toxicity units (TU) were determined. The results indicated that recycled wool-based Nonwoven Material can be used as an efficient sorbent for removal of investigated basic dyes. Hydrogen peroxide treatment considerably improved the sorption properties of the Material for both dyes. The sorption kinetics of dyes on the hydrogen...
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efficiency of recycled wool based Nonwoven Material for the removal of oils from water
Chemosphere, 2008Co-Authors: Maja Radetic, D. Jocic, Vesna Ilic, Darinka Radojevic, Robert Miladinovic, Petar JovancicAbstract:The aim of this study was to highlight the potential use of recycled wool-based Nonwoven Material for the removal of diesel fuel, crude, base, vegetable and motor oil from water. Sorption capacity of the Material in water and in oil without water, oil retention, sorbent reusability and buoyancy in static and dynamic conditions were investigated. The results show high sorption capacity of recycled wool for different kinds of oil. This sorbent also exhibited excellent buoyancy after 24 h of sorption as well as a good reusability since the decrease in sorption capacity did not exceed 50% of the initial value after five sorption cycles in oil without water.
Vesna Ilic - One of the best experts on this subject based on the ideXlab platform.
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the study of sorption of toxic basic dyes from aqueous solutions on h2o 2 treated recycled wool based Nonwoven Material and related toxicity analysis
Textile Research Journal, 2009Co-Authors: Vesna Ilic, Darinka Radojevic, Darka Mihailovic, Maja Radetic, Petar Jovancic, Marinella Farre, Damia BarceloAbstract:The aim of this study was to investigate the potential use of recycled wool-based Nonwoven Material for removal of basic dyes C.I. Basic Yellow 28 and C.I. Basic Red 46 from aqueous solutions. To improve the sorption properties, the recycled wool-based Nonwoven Material was treated with hydrogen peroxide. The sorption capacity, the sorption kinetics, and the influence of initial dye concentration and pH on the sorption were studied. The acute toxicity of dyes was evaluated using a ToxAlert® 100 biological test, which is based on inhibition of the bioluminescence of Vibrio fischeri . The percent of inhibition (%I) before and after the sorption, 50 % effective concentration (EC50) and toxicity units (TU) were determined. The results indicated that recycled wool-based Nonwoven Material can be used as an efficient sorbent for removal of investigated basic dyes. Hydrogen peroxide treatment considerably improved the sorption properties of the Material for both dyes. The sorption kinetics of dyes on the hydrogen...
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efficiency of recycled wool based Nonwoven Material for the removal of oils from water
Chemosphere, 2008Co-Authors: Maja Radetic, D. Jocic, Vesna Ilic, Darinka Radojevic, Robert Miladinovic, Petar JovancicAbstract:The aim of this study was to highlight the potential use of recycled wool-based Nonwoven Material for the removal of diesel fuel, crude, base, vegetable and motor oil from water. Sorption capacity of the Material in water and in oil without water, oil retention, sorbent reusability and buoyancy in static and dynamic conditions were investigated. The results show high sorption capacity of recycled wool for different kinds of oil. This sorbent also exhibited excellent buoyancy after 24 h of sorption as well as a good reusability since the decrease in sorption capacity did not exceed 50% of the initial value after five sorption cycles in oil without water.
