A5075017227- Pharmaceutical and Antibiotic Environmental Impacts
- Analytical chemistry methods development
- Soil and Water Nutrient Dynamics
- Environmental Toxicology and Ecotoxicology
- Radioactive element chemistry and processing
- Water Quality and Pollution Assessment
- Aquatic Ecosystems and Phytoplankton Dynamics
- Urban Stormwater Management Solutions
- Marine and coastal ecosystems
- Water Treatment and Disinfection
- Environmental remediation with nanomaterials
- Hydrocarbon exploration and reservoir analysis
- Isotope Analysis in Ecology
- Advanced oxidation water treatment
- Wastewater Treatment and Nitrogen Removal
- Geology and Paleoclimatology Research
- Odor and Emission Control Technologies
- Smart Materials for Construction
- Peatlands and Wetlands Ecology
- Mass Spectrometry Techniques and Applications
- Porphyrin Metabolism and Disorders
- Fluoride Effects and Removal
- Microbial bioremediation and biosurfactants
- Genetics, Aging, and Longevity in Model Organisms
- Marine Toxins and Detection Methods
Technische Universität Berlin
2014-2025
Institute for Environmental Management
2004
Heidelberg University
2004
Queen's University Belfast
2004
University of Bristol
1998
Carl von Ossietzky Universität Oldenburg
1995-1996
Rivers are important ecosystems under continuous anthropogenic stresses. The hyporheic zone is a ubiquitous, reactive interface between the main channel and its surrounding sediments along river network. We elaborate on physical, biological, biogeochemical drivers processes within that have been studied by multiple scientific disciplines for almost half century. These previous efforts shown modulator most metabolic stream serves as refuge habitat diverse range of aquatic organisms. It also...
The fate of 28 trace organic compounds (TrOCs) was investigated in the hyporheic zone (HZ) an urban lowland river Berlin, Germany. Water samples were collected hourly over 17 h and three depths HZ using minipoint samplers. four relatively variable time series subsequently used to calculate first-order removal rates retardation coefficients via a one-dimensional reactive transport model. Reversible sorption processes led substantial many TrOCs along flow path. Some TrOCs, such as...
ABSTRACT Climate change, population growth, urbanisation and water pollution will exacerbate the closely linked challenges of quantity quality. The River Spree in Berlin, Germany, experiences recurrent low flow conditions summer with seasonal reversals certain sections river. This reverse leads to transport treated wastewater upstream possibly introduction into Lake Müggelsee, which is located city centre important for drinking production via bank filtration Berlin. A better understanding...
Natural formation of organohalogen compounds can be shown to occur in all natural environments. Peat bogs, which are built up exclusively organic matter and cover approximately 3% the total continental world area, potentially significant reservoirs for formation. Up now, fluxes retention rates halogens peat bogs were mostly unquantified. In our study, we investigated atmospheric derived organohalogens by differential halogen analysis two southernmost Chile. Atmospheric wet deposition...
This research examined whether treatment with zero-valent iron in the presence of oxygen is a suitable process for degradation pharmaceuticals (antibiotics, cytostatic drugs) and diagnostic agents. It was shown that concentration all selected compounds decreased efficiently by iron. The exhibited pseudo-first-order decay linear dependence on ln(c/c0) time. observed reaction rate strongly depended pH, amount added iron, stirring speed. influence temperature small. Comparison detected...
In fresh waters cyanobacterial blooms can produce a variety of toxins, such as microcystin variants (MCs) and anatoxin-a (ANA). ANA is well-known neurotoxin, whereas MCs are hepatotoxic and, to lesser degree, also neurotoxic. Neurotoxicity applies especially invertebrates lacking livers. Current standardized neurotoxicity screening methods use rats or mice. However, in order minimize vertebrate animal experiments well experimental time effort, many investigators have proposed the nematode...
Cyanobacterial harmful algal blooms (CyanoHABs) threaten public health and freshwater ecosystems worldwide. In this study, our main goal was to explore the dynamics of cyanobacterial how microcystins (MCs) move from Lalla Takerkoust reservoir nearby farms. We used Landsat imagery, molecular analysis, collecting analyzing physicochemical data, assessing toxins using HPLC. Our investigation identified two species responsible for blooms: Microcystis sp. Synechococcus strain produced three MC...
After bank filtration, effluent influenced surface waters are often used as raw drinking water. It is known that high concentrations of iodinated X-ray contrast media detectable in such and thus, more knowledge about the behaviour during filtration necessary subject investigations this study. The adsorbable organic iodine (AOI), four widely possible transformation products were quantified an lake, five groundwater wells a water well. Under anoxic conditions AOI well concentration decreased...
Abstract Trace organic compounds (TrOCs) enter rivers with discharge of treated wastewater. These effluents can contain high loads dissolved matter (DOM). In a 48 h field study, we investigated changes in molecular composition seven DOM compound classes (FTICR-MS) and attenuation 17 polar TrOCs small urban stream receiving Correlations between were used to identify simultaneous surface water the hyporheic zone. Changes TrOC concentrations ranged decrease 29.2% for methylbenzotriazole an...
Iodinated X-ray contrast media (ICM) and their aerobic transformation products (TPs) are widespread in the aquatic environment due to persistent mobile character. In a previous lab study, we have shown that reductive (partial) deiodination of selected triiodobenzene derivatives increases sorption aquifer sand loam soil, since iodine affects compounds by steric hindrance, repulsive forces, resonance inductive effects. These results suggest generally occurring ICM TPs during anoxic/anaerobic...
Dissolved humic substances are taken up by organisms and interact on various molecular biochemical levels. In the nematode Caenorhabditis elegans, such material can promote longevity increase its reproductive capacity; moreover, worms tend to stay for longer in humic-enriched environments. Here, we tested hypothesis that chemical enrichment of with hydroxybenzene moieties intensifies these physiological effects. Based leonardite acid HuminFeed (HF), followed a polycondensation reaction which...