Bioremoval of Nickel Using Pseudomonas aeruginosa

Devika, M.

doi:10.9734/arrb/2014/5410

Cited by 6 publications

(5 citation statements)

References 16 publications

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“…was prepared as described by Xu, 18 which contained maltose 10.0 g/L, casein peptone 10.0 g/L, beef extract 5.0 g/L, and NaCl 2.0 g/L, and was maintained at pH 7.2 and 32 °C with an agitation speed of 200 rpm in a rotating shaker. 17 The growth medium for M. rouxii contained 50.0 g/L glucose, 20.0 g/L casein peptone, 2.0 g/L yeast extract, 4.0 g/L KH 2 PO 4 , and 2.0 g/L MgSO 4 , and was maintained at pH 4.5 and 28 °C with an agitation speed of 300 rpm in a rotating shaker. The growth medium for E. coli and P. aeruginosa contained 10.0 g/L casein peptone, 5.0 g/L yeast extract, and 10.0 g/L NaCl, and was incubated at pH 7.0 and 37 °C with an agitation speed of 120 rpm in a rotating shaker.…”

Section: Methodsmentioning

confidence: 99%

“…The growth medium for Bacillus sp. was prepared as described by Xu, which contained maltose 10.0 g/L, casein peptone 10.0 g/L, beef extract 5.0 g/L, and NaCl 2.0 g/L, and was maintained at pH 7.2 and 32 °C with an agitation speed of 200 rpm in a rotating shaker . The growth medium for M.…”

Section: Methodsmentioning

confidence: 99%

“…As far as the authors know, immobilization was the only method to improve the mechanical stability of the microorganisms. 17…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the poor mechanical stability of the native microorganisms may have limited their further application under real conditions. , Hence, it is important to improve the stability of microorganisms before their further application in industries. As far as the authors know, immobilization was the only method to improve the mechanical stability of the microorganisms …”

Section: Introductionmentioning

confidence: 99%

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Application of Chlorine Dioxide in Cell Surface Modification to Enhance Its Mechanical Stability and Metal Ion Adsorption

Wei

Zhou

et al. 2019

ACS Omega

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There has been a trend toward the use of microorganisms as the biomaterial for removing dyes and metals from wastewater. However, native microorganism cells have low mechanical stability, which limit their further application in industries. In this study, chlorine dioxide (ClO 2 ), a high-efficiency, low-toxicity, and environmentally benign disinfectant, was used for microorganism surface modification to enhance the mechanical stability and metal ion adsorption of the cell. ClO 2 can either modify cell walls to improve their metal adsorption capacity or modify cell membranes to improve their mechanical stability. Fourier-transform infrared spectroscopy analysis indicated that several cell surface groups were involved in the cell wall modification of Bacillus sp. Microscopic observation indicated that ClO 2 treatment could deter cell membranes from forming vesicles in sodium hydroxide (NaOH) aqueous solution, and freeze-etching showed that ClO 2 treatment could alter the erythrocyte membrane proteins which might also contribute to improving the cell stability. The experimental results on Bacillus sp., Pseudomonas aeruginosa , and Mucor rouxii show that ClO 2 treatment may increase, or at least not reduce, the ability of microbial cells to adsorb heavy metals, but it can significantly improve the resistance of these cells to NaOH cleavage. It seems ClO 2 is a promising auxiliary for biosorption of heavy-metal ions.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…As far as the authors know, immobilization was the only method to improve the mechanical stability of the microorganisms. 17…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Application of Chlorine Dioxide in Cell Surface Modification to Enhance Its Mechanical Stability and Metal Ion Adsorption

Wei

Zhou

et al. 2019

ACS Omega

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“…10 ml of the sample was centrifuged at 2,500 rpm every 24 hours for 4 days. The clear supernatant was subjected to acid digestion and used for AAS analysis (Devika et al 2014).…”

Section: Sorption Equilibrium Studiesmentioning

confidence: 99%

Physical characterization and kinetic studies of Zn (II) biosorption by Morganella morganii ACZ05

Ramya

Thatheyus

Juliana

et al. 2022

Water Science and Technology

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Through this investigation, we establish the mechanism and physical characterization of zinc (II) sequestration by Morganella morganii ACZ05 strain, which was isolated and characterized from soil polluted by effluents from electroplating industries. As far as we know, there is very little literature concerning zinc biosorption using an environmental strain of Morganella morganii. The SEM analysis shows the dark porous gaps in the aggregated cell-matrix of test bacterial biomass which is inferred as water channels usually seen in biofilms, as compared to metal-unexposed control. Morganella morganii is not known to produce biofilms unless in the rare nosocomial conditions. Here, SEM analysis shows the production of biofilms after exposure to zinc (II) at 500 ppm, which has not been previously reported. EDX analysis of bacterial biomass also specified the sorption of zinc (II) by the bacterial cells and the presence of new peaks for zinc in contrast to control. Both XRD and FTIR analysis observations strongly implicate the potential of physical adsorption as a mechanism for heavy metal resistance. Analysis of the cell surface by Atomic force microscopy and examination of the topography revealed cell aggregation occurs during biofilm production after zinc biosorption. Unlike other reports, regular models such as Langmuir isotherm and Freundlich isotherm were found insufficient to explain the physisorption of zinc (II) metal ions on the complex multicomponent adsorbents such as the exopolymeric surface of the bacterial cells. However, adsorption kinetics of zinc (II) to the bacterial biomass was most effectively elucidated by a pseudo-second-order kinetic model, suggesting a certain kind of chemisorption that requires further study.

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Bioaccumulation of lead, chromium, and nickel by bacteria from three different genera isolated from industrial effluent

2019

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Bioremoval of Nickel Using Pseudomonas aeruginosa

Cited by 6 publications

References 16 publications

Application of Chlorine Dioxide in Cell Surface Modification to Enhance Its Mechanical Stability and Metal Ion Adsorption

Application of Chlorine Dioxide in Cell Surface Modification to Enhance Its Mechanical Stability and Metal Ion Adsorption

Physical characterization and kinetic studies of Zn (II) biosorption by Morganella morganii ACZ05

Bioaccumulation of lead, chromium, and nickel by bacteria from three different genera isolated from industrial effluent

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