| Records |
| Author |
Rajfur, M.; Kłos, A.; Wacławek, M. |
| Title |
Sorption properties of algae Spirogyra sp. and their use for determination of heavy metal ions concentrations in surface water |
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Journal Article |
Year  |
2010 |
Publication |
Bioelectrochemistry |
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| Volume |
80 |
Issue |
1 |
Pages |
81-86 |
| Keywords |
Biomonitoring, Heavy metal ions, Algae sp., Sorption kinetics, Langmuir isotherm |
| Abstract |
Kinetics of heavy-metal ions sorption by alga Spirogyra sp. was evaluated experimentally in the laboratory, using both the static and the dynamic approach. The metal ions – Mn2+, Cu2+, Zn2+ and Cd2+ – were sorbed from aqueous solutions of their salts. The static experiments showed that the sorption equilibria were attained in 30min, with 90-95% of metal ions sorbed in first 10min of each process. The sorption equilibria were approximated with the Langmuir isotherm model. The algae sorbed each heavy metal ions proportionally to the amount of this metal ions in solution. The experiments confirmed that after 30min of exposition to contaminated water, the concentration of heavy metal ions in the algae, which initially contained small amounts of these metal ions, increased proportionally to the concentration of metal ions in solution. The presented results can be used for elaboration of a method for classification of surface waters that complies with the legal regulations. |
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1567-5394 |
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A Selection of Papers presented at the 4th International Workshop on Surface Modification for Chemical and Biochemical Sensing (SMCBS 2009) |
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| Call Number |
THL @ christoph.kuells @ Rajfur201081 |
Serial |
283 |
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| Author |
Külls, C.H.; Eichinger, F.; Fader, H.J.; Leistert, H.; Lorenz, G.; Szakacs, E. |
| Title |
New Environmental Analytical Techniques to Monitor Carbon Sequestration |
Type |
Conference Article |
| Year |
2011 |
Publication |
1st EAGE Sustainable Earth Sciences (SES) Conference and Exhibition |
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268 |
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European Association of Geoscientists & Engineers |
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no |
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THL @ christoph.kuells @ Kuells2011new |
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47 |
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Frey, S.; Külls, C.; Schlosser, C. |
| Title |
New Hydrological Age-Dating techniques using cosmogenic radionuclides Beryllium-7 and Sodium-22 |
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Conference Article |
| Year |
2011 |
Publication |
Proc. IAEA Conf. Monacco |
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THL @ christoph.kuells @ Frey2011new |
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48 |
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Külls, C. |
| Title |
Rekonstruktion hydrologischer Extreme in der Namibwüste |
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Journal Article |
| Year |
2011 |
Publication |
Berichte der naturforschenden Gesellschaft zu Freiburg im Breisgau |
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101 |
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69-81 |
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THL @ christoph.kuells @ |
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71 |
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Brook, G.A.; Railsback, L.B.; Marais, E. |
| Title |
Reassessment of carbonate ages by dating both carbonate and organic material from an Etosha Pan (Namibia) stromatolite: Evidence of humid phases during the last 20ka |
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Journal Article |
| Year |
2011 |
Publication |
Quaternary International |
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| Volume |
229 |
Issue |
1 |
Pages |
24-37 |
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| Abstract |
Previous research on lacustrine stromatolites from Etosha Pan in Namibia obtained ages on carbonate close to or beyond the limits of radiocarbon dating. These ages suggested that the basin was likely not subject to extensive flooding during the last ca. 40ka. This study shows that AMS radiocarbon ages for the carbonate of a stromatolite from Poacher’s Point are 15–21ka older than ages for organic material in the stromatolite structure. Calibrated ages range from 30 to 40ka for carbonate and 3–19ka for the organic residue. The new ages, together with petrographic and isotopic data for the stromatolite, have provided important new information on past flooding of Etosha Pan including evidence of prolonged lacustrine conditions during the Holocene Climatic Optimum. |
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1040-6182 |
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THL @ christoph.kuells @ brook_reassessment_2011 |
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110 |
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