Tallent Dadi

Contact / address

Tallent Dadi

Department Lake Research
Helmholtz Centre for Environmental Research - UFZ
39114 Magdeburg, Germany

ph. +49 (0) 341 6025 4360

Persönliche Bild

Research Interests

My focus is on understanding sediment-water interactions in water bodies and how they affect nutrients and pollutants dynamics. My research interests are; sediment biogeochemistry, paleolimnology, eutrophication, lake restoration, emerging pollutants.

Current Project

EventNut (DFG funded), in collaboration with University of Rostock, Dept. of Aquatic Ecology
Rapid, event-driven shortcuts between benthic nutrients and phytoplankton in inland and coastal waters. The project focuses on investigating the link between sediment nutrient release and phytoplankton physiology by using high temporal resolution, in-situ methods in shallow lakes.

CV / Scientific Career

1.2.2021 - 31.1.2024 DFG-project "EventNut"
2017 - 2021 Guest-Scientist within Department Lake Research
2013 - 2016 PhD student within Department Lake Research (WG Lake Microbiology):
"Role of the sediments for dissolved organic carbon (DOC) quantity and quality in drinking water reservoirs"
PhD (Doctor rerum naturalium), grade: magna cum laude
Martin-Luther-University, Halle-Wittenberg, Institute of Geosciences and Geography
2010 - 2012 MSc Environmental and Resource Management, Brandenburg University of Technology, Cottbus, Germany
Thesis title: Interconnection between iron biogeochemistry and phosphorus release from sediments of a lake-river system (Lower Havel, Berlin)
2008 - 2010 Safety, Health and Environment (SHE) Officer, ARIIFM LLC,
Abu Dhabi, United Arab Emirates
2007 - 2008 Postgraduate Diploma in Water and Sanitation; Institute of Water and Sanitation Development, Harare, Zimbabwe
Thesis title: The impacts of communal water and sanitation facilities on hygiene behaviours in a mining community. A case study of Arcturus Mine
2004 - 2008 Safety, Health and Environment (SHE) Officer, Metallon Gold Zimbabwe – Arcturus Mine (Arcturus, Zimbabwe)
2001 - 2004 BSc Honours Applied Environmental Science, University of Zimbabwe, Harare, Zimbabwe
Thesis title: Use of bio-monitoring to determine water quality in a wastewater polluted stream (Marondera, Zimbabwe)

Sedimentkern Inkubation

PhD work

Role of the sediments for dissolved organic carbon (DOC) quantity and quality in drinking water reservoirs

The project is a sub-project of the Trinkwassertalsperren durch gelösten organischen Kohlenstoff (TALKO) project. The project was motivated by the increasing DOC input into European and North American streams over the last two decades. Increasing DOC presents a major problem to potable (drinking) water suppliers by increasing chemical consumption in potable water processing plants. DOC in the aquatic system can also affect light penetration hence some disturbances in the phototrophs biodiversity.
The project focus on quantifying fluxes of DOC between the sediments and water in Harz (Hassel & Rappode) and Muldenberg (Rotmulde) pre-dams in order to understand DOC cycling in the pre-dams. Also of interest is investigating influence of benthic biofilms, sedimentation, and sediment resuspension on DOC fluxes. Quantification of DOC fluxes will further culminate in process specific biochemical experiments to further understand the hot spots in the sediment-water DOC cycle. The focus is not limited to DOC only but we also try to understand the interconnection of the DOC cycle with nutrient (N, P), redox species (Fe, Mn, SO4) cycles. A combination of both in-situ (benthic chamber, sediment trap) and laboratory (sediment core incubation, resuspension) experiments are used. The experiments have a special focus on the effect of redox-changes, anaerobic microbial processes, temperature and light on the DOC cycle.


2024 (2)

2023 (8)

2022 (2)

2021 (4)

2020 (1)

2017 (2)

2016 (2)

  • Dadi, T., Friese, K., Wendt-Potthoff, K., Koschorreck, M. (2016):
    Benthic dissolved organic carbon fluxes in a drinking water reservoir
    Limnol. Oceanogr. 61 (2), 445 - 459 10.1002/lno.10224
  • Musolff, A., Dadi, T., Fleckenstein, J.H., Kamjunke, N., Morling, K., Koschorreck, M., Oosterwoud, M., Raeke, J., Rinke, K., Reemtsma, T., Tittel, J., Weitere, M., Wendt-Potthoff, K. (2016):
    Ergebnisse - Freisetzung und Abbau von DOC: Teilprojekt 1
    In: Tittel, J., Kamjunke, N. (Hrsg.)
    Belastung von Trinkwassertalsperren durch gelösten organischen Kohlenstoff: Prognose, Vorsorge, Handlungsoptionen (TALKO); Schlussbericht zum Verbundvorhaben
    Helmholtz-Zentrum für Umweltforschung GmbH – UFZ; DVGW - Deutsche Vereinigung des Gas- und Wasserfaches e.V.; Technologiezentrum Wasser (TZW) - Außenstelle Dresden; IDUS Biologisch Analytisches Umweltlabor GmbH, Leipzig, Megdeburg, Dresden, Ottendorf-Okrilla, S. 1 - 52

2015 (2)