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Biogeochemical investigations on processes affecting the transport behaviour of trace elements in the tidal Elbe River; Biogeochemische Prozessuntersuchungen zum Transportverhalten von Spurenelementen in der Tide-Elbe

Abstract

This work concentrates on distribution and transport of micropollutants in anthropogenically affected estuary systems. Choosing the tidal Elbe River as an example, the influence of microlagae on two important partial processes of the transport regime, the remobilization (a) from undisturbed sediments and (b) from suspended particulate matter, was simulated and quantified in the laboratory. Benthic and planktonic release of Cd, Cu, Pb and Zn into the dissolved phase of the river pelagial were estimated and comparatively evaluated for summer/late summer situation. During that season natural decomposition of suspended particulate matter in the water column thus represents the quantitatively most significant mobilization pathway for particle bound heavy metals in the river section between Hamburg and Glueckstadt. Knowing the composition and heavy metal load of suspended particulate matter, rich in algae, mobilization rates can consequently be calculated for the water column with regard to conditions typical for estuaries. The prognosis of the differing transport behaviour of single heavy metals for greater sections of estuaries is also possible if these rates are implemented into transport-reaction models. (orig.) [Deutsch] Die vorliegende Arbeit befasst sich mit Verteilung und Transport von Spurenschadstoffen in anthropogen belasteten Aestuarsystemen. Am Beispiel der Tide-Elbe wurde der Einfluss von Mikroalgen auf  More>>
Authors:
Hennies, K [1] 
  1. GKSS-Forschungszentrum Geesthacht GmbH (Germany). Inst. fuer Gewaesserphysik
Publication Date:
Dec 31, 1997
Product Type:
Thesis/Dissertation
Report Number:
GKSS-97/E/51
Reference Number:
SCA: 540350; PA: DE-98:0G7737; EDB-98:054123; NTS-98:005125; SN: 98001941558
Resource Relation:
Other Information: TH: Diss.; PBD: 1997
Subject:
54 ENVIRONMENTAL SCIENCES; RIVERS; FEDERAL REPUBLIC OF GERMANY; ENVIRONMENTAL TRANSPORT; SEASONAL VARIATIONS; CADMIUM; COPPER; LEAD; ZINC; ALGAE; QUANTITATIVE CHEMICAL ANALYSIS; AQUATIC ECOSYSTEMS; SEDIMENTS; WATER QUALITY
OSTI ID:
594936
Research Organizations:
GKSS-Forschungszentrum Geesthacht GmbH (Germany)
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Journal ID: ISSN 0344-9629; Other: ON: DE98749598; TRN: DE98G7737
Availability:
OSTI as DE98749598
Submitting Site:
DE
Size:
291 p.
Announcement Date:

Citation Formats

Hennies, K. Biogeochemical investigations on processes affecting the transport behaviour of trace elements in the tidal Elbe River; Biogeochemische Prozessuntersuchungen zum Transportverhalten von Spurenelementen in der Tide-Elbe. Germany: N. p., 1997. Web.
Hennies, K. Biogeochemical investigations on processes affecting the transport behaviour of trace elements in the tidal Elbe River; Biogeochemische Prozessuntersuchungen zum Transportverhalten von Spurenelementen in der Tide-Elbe. Germany.
Hennies, K. 1997. "Biogeochemical investigations on processes affecting the transport behaviour of trace elements in the tidal Elbe River; Biogeochemische Prozessuntersuchungen zum Transportverhalten von Spurenelementen in der Tide-Elbe." Germany.
@misc{etde_594936,
title = {Biogeochemical investigations on processes affecting the transport behaviour of trace elements in the tidal Elbe River; Biogeochemische Prozessuntersuchungen zum Transportverhalten von Spurenelementen in der Tide-Elbe}
author = {Hennies, K}
abstractNote = {This work concentrates on distribution and transport of micropollutants in anthropogenically affected estuary systems. Choosing the tidal Elbe River as an example, the influence of microlagae on two important partial processes of the transport regime, the remobilization (a) from undisturbed sediments and (b) from suspended particulate matter, was simulated and quantified in the laboratory. Benthic and planktonic release of Cd, Cu, Pb and Zn into the dissolved phase of the river pelagial were estimated and comparatively evaluated for summer/late summer situation. During that season natural decomposition of suspended particulate matter in the water column thus represents the quantitatively most significant mobilization pathway for particle bound heavy metals in the river section between Hamburg and Glueckstadt. Knowing the composition and heavy metal load of suspended particulate matter, rich in algae, mobilization rates can consequently be calculated for the water column with regard to conditions typical for estuaries. The prognosis of the differing transport behaviour of single heavy metals for greater sections of estuaries is also possible if these rates are implemented into transport-reaction models. (orig.) [Deutsch] Die vorliegende Arbeit befasst sich mit Verteilung und Transport von Spurenschadstoffen in anthropogen belasteten Aestuarsystemen. Am Beispiel der Tide-Elbe wurde der Einfluss von Mikroalgen auf zwei wichtige Teilprozesse des Transportregimes, die Remobilisierung (a) aus ungestoerten Sedimenten und (b) aus suspendierten Schwebstoffen, im Labor simuliert und quantifiziert. Benthische und planktische Freisetzung von Cd, Cu, Pb und Zn in die Loesungsphase des Flusspelagials der Tide-Elbe wurden fuer die Sommer-/Spaetsommer-Situation abgeschaetzt und vergleichend bewertet. Der natuerliche Schwebstoff-Abbau in der Wassersaeule stellt demnach in dieser Jahreszeit im Stromabschnitt zwischen Hamburg und Glueckstadt den quantitativ bedeutsamsten Mobilisierungspfad fuer partikulaer gebundene Schwermetalle dar. Bei Kenntnis der Zusammensetzung und Schwermetallbeladung von algenreichen Schwebstoffen koennen damit Mobiliserungsraten fuer die Wassersaeule in Hinblick auf aestuartypische Bedingungen berechnet werden. Auch die Prognose des unterschiedlichen Transportverhaltens einzelner Schwermetalle fuer groessere Aestuarabschnitte ist moeglich, wenn diese Raten in Transport-Reaktions-Modelle eingebaut werden. (orig.)}
place = {Germany}
year = {1997}
month = {Dec}
}