Metal immobilisation by biofilms: Mechanisms and analytical tools

Hullebusch, Eric D. van; Zandvoort, Marcel H.; Lens, Piet N.L.

doi:10.1023/b:resb.0000022995.48330.55

Cited by 217 publications

(125 citation statements)

References 149 publications

Supporting

Mentioning

115

Contrasting

Unclassified

Order By: Relevance

“…The above mentioned is in good agreement with literature data according to which there is a significant difference in the efficiency of absorption in each species of microorganisms, since the sorption depends on the nature and the composition of the cell wall [25]. On the other hand, gram-positive bacteria have greater sorptive capacity due to their thicker layer of peptidoglycan, which contains numerous sorptive sites [26].…”

Section: Resultssupporting

confidence: 80%

Comparative Study on Heavy Metals Biosorption by Different Types of Bacteria

Gelagutashvili¹

2013

OJMetal

View full text Add to dashboard Cite

Biosorption of Cd(II), Ag(I) and Au(III) by cyanobacteria Spirulina platensis, of Au(II)-by Streptomyces spp. 19H, and of Cr(VI) and Cr(III)-by Arthrobacter species was studied by using the dialysis and atomic absorption analysis under various conditions. In particular, the impact of the following parameters on biosorption was studied: pH (for Ag, Cd, Au), living and non-living cells (for Cr), heavy metal valence (for Cr), homogenized and non-homogenized cells (for Au), Zn(II) ions (on Cr(VI)-Arthrobacter species). It was shown that biosorption efficiency of Cr(III), Cr(VI), Cd(II), Au(III) and Ag(I) ions is likely to depend on the type of bacteria used as well as on the conditions under which the uptake processes proceeded. It was shown that metal removal by microorganisms was influenced by physicalchemical parameters. The pH value of 7.0 was optimum for the removal of Ag(I) and Cd(II) by Spirulina platensis. At a low pH value of 5.5, Au (III) was by test algae more efficiently than Cd(II) and Ag(I).

show abstract

Section: Resultssupporting

confidence: 80%

Comparative Study on Heavy Metals Biosorption by Different Types of Bacteria

Gelagutashvili¹

2013

OJMetal

View full text Add to dashboard Cite

show abstract

“…However, this impact was more pronounced at other two bioreactor rotation speeds (5 and 30 min -1 ). As mentioned earlier, the biofilm sorption is a complex process that is affected by hydrodynamic conditions, the morphological and physiological characteristics of the biofilm (Aksu et al, 1992;van Hullebusch et al, 2003) and the covalent index of the metal ions (Kogej and Pavko, 2001;Kogej et al, 2010;Chen and Wang, 2007). As can be seen in Figure 3, relatively good agreement between experimental and simulated values of the metal ion concentration along HRTB was observed.…”

Section: +supporting

confidence: 58%

Biosorption of Mn (II), Co (II) and Cr (VI) in a horizontal rotating tubular bioreactor: experiments and evaluation of the integral bioprocess model

Rezić

Zeiner

et al. 2014

Braz. J. Chem. Eng.

View full text Add to dashboard Cite

-In this research, a multi heavy metals removal process with mixed microbial culture was examined in a horizontal rotating tubular bioreactor (HRTB) with different combinations of process parameters. Three metals were selected as examples of cations (manganese and cobalt) and oxy-anion (hexavalent chromium). Hydrodynamic conditions and biomass sorption capacity in the HRTB had the main impact on the heavy metals removal efficiencies, which were for Mn 2+ 87.0-93.6%, Co 2+ 89.0-95.7% and Cr 6+ 99.7-100%, respectively. For the bioprocess description in the HRTB, the integral bioprocess model that combines hydrodynamics, mass transfer and kinetics was used. This model was evaluated for the new experimental conditions and average variances between experimental and simulated data were in the range of 0.12 -3.21·10 -3 . The results obtained clearly show that the integral bioprocess model is able to describe the heavy metal removal process in the HRTB.

show abstract

“…The effectiveness of sorption reactions in binding an ion is determined by a number of variables, including (i) pH (Lee & Saunders 2003), (ii) the charge on the mineral surface as a function of pH (Bertsch & Seaman 1999), (iii) the type of sorption complex formed (Sposito et al 1999), (iv) competition between different ions for the same types of reactive surface sites (e.g., U(VI), Davis et al 2004), (v) the presence of organic and/or inorganic ligands that can inhibit or enhance sorption of a metal ion (Tessier et al 1996), and (vi) the presence of surface coatings such as biofilms that may block reactive sites and/or create new sorption sites (van Hullebusch et al 2003;Templeton et al 2003a, b).…”

Section: Adsorptionmentioning

confidence: 99%

Developments in Bioremediation of Soils and Sediments Polluted with Metals and Radionuclides. 3. Influence of Chemical Speciation and Bioavailability on Contaminants Immobilization/Mobilization Bio-processes

Hullebusch

Lens

Tabak

2005

Rev Environ Sci Biotechnol

Self Cite

View full text Add to dashboard Cite

The biotransformation of metals is an exciting, developing strategy to treat metal contamination, especially in environments that are not accessible to other remediation technologies. However, our ability to benefit from these strategies hinges on our ability to monitor these transformations in the environment. That's why remediation of contaminated sediments and soil requires detailed in situ characterization of the speciation of the toxic substances and their transformations with respect to time and spatial distribution. The present paper gives an overview of the literature regarding research performed in the laboratory as well as in the field.

show abstract

Metal immobilisation by biofilms: Mechanisms and analytical tools

Cited by 217 publications

References 149 publications

Comparative Study on Heavy Metals Biosorption by Different Types of Bacteria

Comparative Study on Heavy Metals Biosorption by Different Types of Bacteria

Biosorption of Mn (II), Co (II) and Cr (VI) in a horizontal rotating tubular bioreactor: experiments and evaluation of the integral bioprocess model

Developments in Bioremediation of Soils and Sediments Polluted with Metals and Radionuclides. 3. Influence of Chemical Speciation and Bioavailability on Contaminants Immobilization/Mobilization Bio-processes

Contact Info

Product

Resources

About