Adsorption profile of lead on Aspergillus versicolor: A mechanistic probing

Bairagi, Himadri; Khan, Md. Motiar R.; Ray, Lalitagauri; Guha, Arun K.

doi:10.1016/j.jhazmat.2010.11.064

Cited by 66 publications

(26 citation statements)

References 57 publications

(60 reference statements)

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“…1a). Similar observations were earlier reported by other researchers [5,28,34]. The reason for decrease in adsorption may be due to interaction of dye molecules with hydroxyl ions at higher pH resulting in formation of soluble hydroxylated complexes and their competition for active-binding sites [35].…”

Section: Discussionsupporting

confidence: 88%

Biosorption of Malachite Green from Aqueous Solution Using Resting and Immobilised Biomass ofBacillus cereusM¹₁₆(MTCC 5521)

Nath

Das

Ray

2015

Indian Chemical Engineer

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Biosorption of Malachite green, a hazardous environmentally persistent textile dye by resting and immobilised cells of mutant Bacillus cereus M 1 16 was standardised. Calcium alginate (3%) was found to be the most suitable and effective matrix for immobilisation of the biomass. Malachite green adsorption up to 91% and 83% was possible using resting and immobilised cells of B. cereus M 1 16 at pH 5.0, temperature 30°C, biomass concentration 0.5 g L −1 , initial dye concentration 100 mg L −1 and contact time 360 min. Redlich-Peterson isotherm model fitted best to the experimental results and pseudo-second-order kinetic model described the process best. Immobilised biomass was efficiently reused up to four consecutive cycles of biosorption. UV-visible spectra analysis of growth media containing the organism in presence of Malachite green showed that the dye was not metabolised by bacterial species. Scanning electron microscopy confirmed the phenomenon of adsorption onto cell surface as the underlying mechanism of dye removal.

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Section: Discussionsupporting

confidence: 88%

Biosorption of Malachite Green from Aqueous Solution Using Resting and Immobilised Biomass ofBacillus cereusM¹₁₆(MTCC 5521)

Nath

Das

Ray

2015

Indian Chemical Engineer

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“…In the removal of Remazol Blue and Cu (II) by Aspergillus versicolor biomass, it has been reported that maximum removal percentage was observed to be at pH 5 [32]. In addition and in agreement with our results, maximum removal of copper (II) and cadmium (II) by free and immobilized biomass of A. niger was observed at 5.5 [33]; maximum removal of dyes from anaerobically digested spent wash by A. niger biomass, was observed at pH 5.5 [34]; and the removal of Pb (II) by A. niger and A. versicolor biomass was reported to be optimal at pH 5 [35]. In our previously published work, pH 5.3 was found to be the optimal value for the removal of Cr (III) from model solutions [31], showing that pH 5-5.5 was favorable to sorption of pollutants by fungi, especially heavy metals, in agreement with the present findings.…”

Section: Determination Of the Optimal Phsupporting

confidence: 91%

“…A. niger and A. oryzae growth and Cr (III) removal efficiency were shown to be optimal at 30˚C [31]. In addition, 30˚C has been reported to be the optimal temperature for the removal of reactive dyes and heavy metals by means of A. versicolor [32], as well as for the removal of Pb (II) by A. niger and A. versicolor [35].…”

Section: Determination Of the Optimal Temperaturementioning

confidence: 98%

Removal of Cr (III) from model solutions and a real effluent byPhanerochaete chrysosporiumisolated living microorganism: equilibrium and kinetics

Sepehr¹,

Zarrabi²,

Amrane

et al. 2013

Desalination and Water Treatment

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A B S T R A C TRemoval of Cr (III) was investigated using Phanerochaete chrysosporium-isolated living microorganism; pH, contact time, temperature and nutrients addition were examined. It was found that P. chrysosporium can tolerate up to 600 mg/L chromium solution. The optimal growth conditions of the biosorbent were found to be 35˚C, 26 h contact time and pH = 5. In addition, a complex nitrogen substrate, yeast powder, was shown to be most efficient than a synthetic one, like di-hydrogen ammonium phosphate. High chromium removal (98%) was observed in these optimal growth conditions. Experimental data were found to follow a Langmuir isotherm model (r 2 > 0.99). Maximum sorption capacity for the present biosorbent was 213 mg/g according to the Langmuir isotherm model, namely significantly higher than the values reported in the literature, even for activated carbon. The fitting of experimental data onto kinetic models showed the relevance of the pseudo-second-order model (r 2 > 0.99) for Cr (III) sorption by P. chrysosporium. In addition, a real effluent was obtained from tanning factory and was treated to examine process feasibility on real effluents.

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“…Fourier transform infrared spectroscopy was employed to get an idea about the possible mechanism of adsorption by identifying the functional groups present on the cell surface of ROB because, each group has a unique energy absorption band [18] and thus, FTIR spectrum of pristine ROB ( Figure 10) exhibits distinct peaks suggesting the presence of amine, carbonyl, phosphate, and hydroxyl groups. The broad mixed stretching vibrations frequency of N-H and O-H are observed in the region of 3500-3300 cm −1 and those for alkyl chains are found around 2920-2850 cm −1 .…”

Section: Ftir Spectroscopic Studiesmentioning

confidence: 99%

“…Different textile dyes can be removed using microbial biomass including bacteria, fungi, and algae by biosorption and biodegradation [15] which consume less chemicals and energy. Some low-cost fungal biosorbent has been developed for the removal of dye and metal ions from wastewater, which included Trametes versicolor, [16] Corynebacterium glutamicum, [17] Aspergillus versicolor, [18] Lentinus sajor caju, [19,20] Rhizopus nigricans, [21] Aspergillus niger, [9] Aspergillus fumigates, [22] and Phanerocheate chrysosporium. [23,24] However, a few studies have been focused on utilization of the fungal biomass for Reactive Blue 4 biosorption.…”

Section: Introductionmentioning

confidence: 99%

Adsorption behavior of Reactive Blue 4, a tri-azine dye on dry cells ofRhizopus oryzaein a batch system

Bagchi

Ray

2015

Chemical Speciation & Bioavailability

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The adsorpion behavior of Reactive Blue 4, a tri-azine dye, on dry Rhizopus oryzae biomass (ROB) has been investigated in aqueous solution with special reference to physicochemical parameters associated with the adsorption process. Adsorption of dye on the biomass is found to be a function of solution pH (optimum 3.0), while temperature has no significant effect. Adsorption rate of biomass is very fast initially and attains equilibrium within 5 h for 50 and 100 mg L −1 and 6 h for 200 mg L −1 initial dye concentrations, respectively, following pseudo-second-order rate model (R 2 = 0.99). The equilibrium adsorption isotherm can be best described by RedlichPeterson model (R 2 = 0.95). Scanning electron micrograph demonstrates a conspicuous change in surface morphology of ROB after dye adsorption. Fourier transform infrared spectroscopic data reflect the binding of Reactive Blue 4 on the biomass through complexation reaction involving amino and carboxyl groups. Reactive Blue 4 can be desorbed from the dye loaded biomass using 1(N) NaOH solution. Results establish that ROB has the potential to pollution control management involving Reactive Blue 4. ARTICLE HISTORY

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Adsorption profile of lead on Aspergillus versicolor: A mechanistic probing

Cited by 66 publications

References 57 publications

Biosorption of Malachite Green from Aqueous Solution Using Resting and Immobilised Biomass ofBacillus cereusM¹₁₆(MTCC 5521)

Biosorption of Malachite Green from Aqueous Solution Using Resting and Immobilised Biomass ofBacillus cereusM¹₁₆(MTCC 5521)

Removal of Cr (III) from model solutions and a real effluent byPhanerochaete chrysosporiumisolated living microorganism: equilibrium and kinetics

Adsorption behavior of Reactive Blue 4, a tri-azine dye on dry cells ofRhizopus oryzaein a batch system

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Adsorption profile of lead on Aspergillus versicolor: A mechanistic probing

Cited by 66 publications

References 57 publications

Biosorption of Malachite Green from Aqueous Solution Using Resting and Immobilised Biomass ofBacillus cereusM116(MTCC 5521)

Biosorption of Malachite Green from Aqueous Solution Using Resting and Immobilised Biomass ofBacillus cereusM116(MTCC 5521)

Removal of Cr (III) from model solutions and a real effluent byPhanerochaete chrysosporiumisolated living microorganism: equilibrium and kinetics

Adsorption behavior of Reactive Blue 4, a tri-azine dye on dry cells ofRhizopus oryzaein a batch system

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Biosorption of Malachite Green from Aqueous Solution Using Resting and Immobilised Biomass ofBacillus cereusM¹₁₆(MTCC 5521)

Biosorption of Malachite Green from Aqueous Solution Using Resting and Immobilised Biomass ofBacillus cereusM¹₁₆(MTCC 5521)