Global ETD Search

1	Entwicklung einer analytischen Methode zum Nachweis von ökotoxikologisch relevanten organischen Problemstoffen in Sedimenten und Biota unter besonderer Berücksichtigung von Irgarol, synthetischen Moschusduftstoffen und deren Transformationsprodukten Biselli, Scarlett. Unknown Date (has links) (PDF) Universiẗat, Diss., 2001--Hamburg.
2	Bioakkumulation und Biomagnifikation sedimentgebundener Schadstoffe in einer aquatischen Labornahrungskette Meller, Michael. Unknown Date (has links) Universiẗat, Diss., 2002--Frankfurt (Main).
3	Modellierung und Prognose der Erosion feiner Sedimente Schweim, Christoph. Unknown Date (has links) (PDF) Techn. Hochsch., Diss., 2005--Aachen.
4	Untersuchung der Mikroflora im Sediment von Nonylphenol-belasteten aquatischen Mikrokosmen Jontofsohn, Miriam. Unknown Date (has links) (PDF) Universiẗat, Diss., 2002--München.
5	Schwermetalle in Sedimenten und Böden unter besonderer Berücksichtigung der Mobilität und deren Beeinflussung durch Sauerstoff Zehl, Katharina. Unknown Date (has links) (PDF) Universiẗat, Diss., 2005--Jena.
6	Investigations on the Phenomena of Accumulation and Mobilization of Heavy Metals and Arsenic at the Sediment-Water Interface by Electrochemically Initiated Processes Shrestha, Reena Amatya 04 October 2005 (has links) (PDF) Metals occur naturally and are commonly found as contaminants in areas where industrial and municipal effluents are discharged. Aquatic sediments/environments are often polluted by heavy metals due to the temporal variations in anthropogenic input of contaminants via atmospheric deposition, catchment runoff, effluent inflow and dumping from industrial transportation, mining, agricultural and waste disposal sources [EPA, 1989]. The transfer of contaminants associated with settling inorganic particulates and/or biotic detritus from the water column to the sediments, no disturbance of sediments by physical mixing, slumping or bioturbation after deposition, no post-depositional degradation or mobility of the contaminants and the establishment of a reliable time axis. Therefore, metal contamination in aquatic environment is one of the problems. Rivers, coastal waters, sediments, soils, etc. were mostly contaminated by industrial and mining activities. Recently, the metal discharged from the industries have been controlled in the most developed countries. Even so, till the heavy metals dispersed in river sediments still need to be dealt with. Mainly, characterization, transformation, transport and fate of metal contaminants in the sediment to the aquatic environment need to be studied, because the sediment has great capacity to accumulate the contaminants. Exploitation and utilization of mines discharges heavy metals into the environment and contaminates neighboring aquatic ecosystem... Akkumulation Aquatisches Sediment Arsen Schwermetall Umweltbelastung elektrochemisches Verfahren accumulation aquatic sediment arsenic ecological damage electrochemical process environment heavy metals mobilization ddc:550 ddc:540 rvk:WI 4720 Akkumulation Aquatisches Sediment Arsen Elektrochemisches Verfahren Schwermetall Umweltbelastung
7	Investigations on the Phenomena of Accumulation and Mobilization of Heavy Metals and Arsenic at the Sediment-Water Interface by Electrochemically Initiated Processes Shrestha, Reena Amatya 15 August 2005 (has links) Metals occur naturally and are commonly found as contaminants in areas where industrial and municipal effluents are discharged. Aquatic sediments/environments are often polluted by heavy metals due to the temporal variations in anthropogenic input of contaminants via atmospheric deposition, catchment runoff, effluent inflow and dumping from industrial transportation, mining, agricultural and waste disposal sources [EPA, 1989]. The transfer of contaminants associated with settling inorganic particulates and/or biotic detritus from the water column to the sediments, no disturbance of sediments by physical mixing, slumping or bioturbation after deposition, no post-depositional degradation or mobility of the contaminants and the establishment of a reliable time axis. Therefore, metal contamination in aquatic environment is one of the problems. Rivers, coastal waters, sediments, soils, etc. were mostly contaminated by industrial and mining activities. Recently, the metal discharged from the industries have been controlled in the most developed countries. Even so, till the heavy metals dispersed in river sediments still need to be dealt with. Mainly, characterization, transformation, transport and fate of metal contaminants in the sediment to the aquatic environment need to be studied, because the sediment has great capacity to accumulate the contaminants. Exploitation and utilization of mines discharges heavy metals into the environment and contaminates neighboring aquatic ecosystem... info:eu-repo/classification/ddc/550 ddc:550 info:eu-repo/classification/ddc/540 ddc:540

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