Adsorption isotherms of copper(II) for two species of dead fungi biomasses

Veit, Márcia Teresinha; Tavares, Célia Regina Granhen; Gomes-da-Costa, Sandra Maria; Guedes, Terezinha Aparecida

doi:10.1016/j.procbio.2005.03.029

Cited by 51 publications

(31 citation statements)

References 5 publications

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“…The adsorption capacities of biomass studied in this work had similar removal values to those reported in literature [3][4][5][6] . However, a direct comparison of the data is not possible, because the types of fungal biosorbents and the operation conditions used in each work are different.…”

Section: Analysis Of Adsorption Isothermssupporting

confidence: 82%

“…The research results of Galli et al [4] indicated mushroom mycelium could accumulate high concentration of copper and he utilized Auricularia polytricha mycelium as biosorbent in copper removal in solution and studied several physical effecting factors on absorption. Veit et al [5] reported the biosorption onto copper by Pleurotus pulmonarius and Schizophyllum commune and mastered optimum sorption condition. Also, the experimental data fitted Langmuir isotherm.…”

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confidence: 99%

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Biosorption of Cu(II) and Pb(II) by Auricularia polytricha

Zhang

Gao

et al. 2007

Wuhan Univ. J. of Nat. Sci.

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For searching biological material for heavy metal removal of waste-water, using macrofungus Auricularia polytricha as biosorbent for Cu 2+ and Pb 2+ removal was investigated. After shaking and biosorbing Cu 2+ and Pb 2+ in solution by biosorbents, the filtrates were tested by AAS and the adsorbed quantity of Cu 2+ and Pb 2+ was calculated . The biosorbents were effective in removal of Cu 2+ and Pb 2+ on the biosorbents that showed a highest value around pH 5-6. The biosorption rate of Cu 2+ and Pb 2+ on A. polytricha biomass decreased with increasing the initial concentration of Cu 2+ and Pb 2+ in the medium. The biosorption of Cu 2+ and Pb 2+ on the biomasses follows pseudo-second order kinetics. The determined maximum biosorption capacities presented by the fungus biomass were 3.34 and 13.03 mg·g -1 dry weight for Cu 2+ and Pb 2+ , respectively by the biosorption equilibrium with Langmuir adsorption isotherm. According to the whole data analysis in each experiment of studying Cu 2+ and Pb 2+ biosorption including condition factors and adsorption isotherm, the adsorbed capacity of Pb 2+ by A. polytricha biomass was bigger than Cu 2+ . The biosorption by A. polytricha was most effective when pH 5-6. The biosorbents are suitable for low Cu 2+ and Pb 2+ concentration waste-water, especially for Pb 2+ removal. Environment pollution issues, in particular water pollution by toxic heavy metal contamination, is the result of several activities and its control over the last decades has been a challenge. Conventional methods of treating solutions, which contain heavy metals in concentration of 1-100 mg·L -1 , include: precipitation, coagulation, reduction process, ionic exchange, membrane technologies and adsorption in activated coal. These method associated with either a high cost or a low efficiency, not guaranteeing the limits of metal concentration demanded by legal standards [1] . Biosorption processe appears as a new technology, capable of removing traces of heavy metals from dilute aqueous solutions. Biosorbents such as algae, fungi and bacteria are examples of biomass tested for biosorption of several metals species with very encouraging results [2] . In recent years, some researchers have reported a few of cultivated mushroom to occupy the strong ability in bio-accumulating metal ion [3] . The research results of Galli et al [4] indicated mushroom mycelium could accumulate high concentration of copper and he utilized Auricularia polytricha mycelium as biosorbent in copper removal in solution and studied several physical effecting factors on absorption. Veit et al [5] reported the biosorption onto copper by Pleurotus pulmonarius and Schizophyllum commune and mastered optimum sorption condition. Also, the experimental data fitted Langmuir isotherm.

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Section: Analysis Of Adsorption Isothermssupporting

confidence: 82%

mentioning

confidence: 99%

Biosorption of Cu(II) and Pb(II) by Auricularia polytricha

Zhang

Gao

et al. 2007

Wuhan Univ. J. of Nat. Sci.

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“…Therefore, biosorbents made from these fungi can be easily accepted by public when applied practically. The potential of wood rotting fungi to remove metal ions is limited to a few examples in comparison with micromycetes and the role of macromycetes in this field has been known only for few decades (Veit et al, 2005;Jarosz-Wilkolazka et al, 2006;Gonen et al, 2008;Vimala and Das, 2009). White-rot fungi are capable of accumulating high levels of heavy metals from the environment (Baldrian, 2003).…”

Section: Fungal Biosorption Of Heavy Metalsmentioning

confidence: 99%

Bacteria and Fungi as Alternatives for Remediation of Water Resources Polluting Heavy Metals

Joo

Hussein²,

Hassan³

2011

Korean Journal of Soil Science and Fertilizer

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Classical methods which used for removal of heavy metals from contaminated water are adsorption, precipitation, coagulation, ion exchange resin, evaporation, and membrane processes. Microbial biosorption can be used for the removal of contaminated waters with pollutants such as heavy metals and dyes which are not easily biodegradable. Microbial biosorbents are inexpensive, eco friendly and more effective for the removal of toxic metals from aqueous solution. In this review, the bacterial and fungal abilities for heavy metals ions removal are emphasized. Environmental factors which affect biosorption process are also discussed. A detailed description for the most common isotherm and kinetic models are presented. This article reviews the achievements and the current status of bacterial and fungal biosorption technology for heavy metals removal and provides insights for further researches.

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“…However the application of such processes is sometimes restricted because of technical or economic constrants. 1,4,5 The search for new technologies involving the removal of toxic metals from waste waters has directed attention to biosorption, based on the metal binding capacities of various biological materials. 4,6 Biosorption involves the use of biomass or natural sorbents such as agricultural residues 7 , microorganisms.…”

Section: Introductionmentioning

confidence: 99%

“…1,4,5 The search for new technologies involving the removal of toxic metals from waste waters has directed attention to biosorption, based on the metal binding capacities of various biological materials. 4,6 Biosorption involves the use of biomass or natural sorbents such as agricultural residues 7 , microorganisms. 8,9 casein, 10 sugar beet, 11 carrot residues, 6 rice bran 12 and Papaya wood.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Removal from Aqueous Solution by Pseudevernia Furfuracea (L.) Zopf

Ateş

Yıldız

et al. 2007

Annali di Chimica

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The present study was carried out in a batch system using a lichen (Pseudevernia furfuracea (L.) Zopf) for the sorption of nickel(II) and copper(II) ions from water. Particularly, the effect of pH, contact time and temperature were considered. Pseudevernia furfuracea exhibited nickel(II) and copper(II) uptake of 49.87 and 60.83 mg/g at an initial pH of 4 and 5-6 at 35 degrees C respectively. Both the Freundlich and Langmuir adsorption models were suitable for describing the biosorption of nickel(II) and copper(II) by the biosorbent. Biosorption showed pseudo first order rate kinetics for nickel and copper ions. Using the equilibrium constant values obtained at 25 and 35 degrees C, the thermodynamics properties of the biosorption (deltaG degrees, deltaH degrees and deltaS degrees) were determined. The biosorption of nickel(II) and copper(II) onto Pseudevernia furfuracea was found to be endothermic.

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Adsorption isotherms of copper(II) for two species of dead fungi biomasses

Cited by 51 publications

References 5 publications

Biosorption of Cu(II) and Pb(II) by Auricularia polytricha

Biosorption of Cu(II) and Pb(II) by Auricularia polytricha

Bacteria and Fungi as Alternatives for Remediation of Water Resources Polluting Heavy Metals

Heavy Metal Removal from Aqueous Solution by Pseudevernia Furfuracea (L.) Zopf

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