Miriam Paul

                                              

 

           Institut für Ingenieurbiologie 

    und Biotechnologie des Abwassers  

  • Gebäude 50.31, Zimmer 406 

  • Tel.: (0721)608-8309 

  • Fax: (0721)608-7704 

 

Studium der Biologie an der Universität Karlsruhe;

Studienfächer Ingenieurbiologie, Zoologie (Ökologie, Parasitologie), Mikrobiologie und Wasserchemie

 

Abschluss im Dezember 2002 mit der Diplomarbeit im Institut für Ingenieurbiologie,

Thema:
“Untersuchung der am Stickstoff-Umsatz beteiligten Organismen in einer von Abwasser durchsickerten Bodenmatrix“

 

Mitarbeit in der DFG-Forschergruppe „Gefährdungspotential von undichten Abwasserkanälen“ an der Universität Karlsruhe

seit Januar 2003

 

Forschungsschwerpunkte:

  • Nitrifizierende Bakterien unter Kanalleckagen, Populationsanalysen mit Hilfe der Fluoreszenz in-situ Hybridisierung,

         Kultivierungstechniken

  • Boden- und Grundwassermikrobiologie
  • Indikatororganismen für Kontaminationen mit Abwasser
  • Ermittlung von in-situ-Umsatzraten (kontaminierte Böden und Grundwasser)

 

Zuständigkeiten:

Betreuung der Praktika „Abwasserbiologische Untersuchungen“ und „Waste Water Analysis“ im Rahmen des Studiengangs

Resources Engineering

 

Veröffentlichung:

2004 Microbiological condition of urban groundwater in the vicinity of leaky sewer systems

 

Abstract:

The possible deterioration of the microbiological quality of groundwater due to leaky sewer systems was investigated in a

medium sized city in SW-Germany. Specially constructed focus observation wells drilled close to leaky sewers have been

compared with the urban microbiological background and reference observation wells in rural areas.

The sampling was performed in March (high groundwater table) and in July and October (low groundwater table). It included

measuring of the standard parameters ammonium, temperature, electric conductivity, oxygen and the position of the groundwater

table. Coliforms, Escherichia coli and Enterococci were analysed and served as indicator organisms for a contamination with

wastewater. In addition to that the total number of colony forming units was determined.

In general, the bacterial counts of Coliforms and E. coli increased during the course of the investigation (March to October). This

was possibly caused either by a slightly increased groundwater temperature or by a higher proportion of sewage in the urban

groundwater system as a result of the dry season (summer). The contamination with wastewater bacteria showed a spatial

dependency on the distance to the next leakage. In the direct surrounding of leakages the highest numbers of bacterial counts

concerning the coliforms, E.coli and Enterococci were found. In addition to that elevated concentrations of ammonium were

observed at these sites. The results provide evidence that leaky sewer systems might form a danger for the groundwater quality.