Stefan Peiffer
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View article: Global warming enhances nitrogen-limitation in a temperate reservoir system under consistent external load.
Global warming enhances nitrogen-limitation in a temperate reservoir system under consistent external load. Open
Data belonging to AGU:Water Resources Research submission: Global warming and continued external loading increase nitrogen limitation in a temperate reservoir system. Climate change impacts hydrology and biogeochemistry of reservoirs. Ther…
View article: Sulfur microenvironments as hotspots for biogenic pyrite formation
Sulfur microenvironments as hotspots for biogenic pyrite formation Open
Pyrite (FeS 2 ) is the end-product of bacterial sulfur cycling in reduced sedimentary environments. Sulfate-reducing bacteria (SRB) are mostly considered for biogenic pyrite formation due to their significant contribution to sulfide produc…
View article: Elemental Sulfur as a Key Intermediate for Microbial Pyrite Formation
Elemental Sulfur as a Key Intermediate for Microbial Pyrite Formation Open
Pyrite (FeS2) is the end-product of microbial sulfur cycling in reduced environments and is the main burial pathway of sulfur in marine sediments. Pyrite forms by a series of reactions between sulfide and Fe(II)/Fe(III), and sulfur-metabol…
View article: The role of dissolved organic carbon for the export of iron from catchments
The role of dissolved organic carbon for the export of iron from catchments Open
Export of dissolved organic carbon (DOC) from catchments to streams has increased in the last decades in many catchments across the Northern hemisphere. Mobilisation of DOC from riparian soils and wetlands is highly dependent on discharge …
View article: Sulfide supply rate and organic surface coating affect pyrite formation during sulfidization of ferric (oxy)hydroxides
Sulfide supply rate and organic surface coating affect pyrite formation during sulfidization of ferric (oxy)hydroxides Open
Pyrite formation has been widely investigated because of its abundance and significance in the iron and sulfur cycles in many anoxic environments. The ferric-hydroxide-surface (FHS) pathway is an important pathway for rapid pyrite formatio…
View article: Export of groundwater-borne geogenic phosphorus from a drained wetland into surface water
Export of groundwater-borne geogenic phosphorus from a drained wetland into surface water Open
Groundwater-derived geogenic phosphorus (P) plays a significant but often overlooked role in surface water eutrophication. Geogenic P differs from anthropogenic P in its release mechanisms, seasonal variability and magnitude of release. Wh…
View article: UV-weathering affects heteroaggregation and subsequent sedimentation of polystyrene microplastic particles with ferrihydrite
UV-weathering affects heteroaggregation and subsequent sedimentation of polystyrene microplastic particles with ferrihydrite Open
Microplastic (MP) particles are ubiquitous in aquatic environments where they become exposed to UV-irradiation and environmental particles with subsequent alteration of surface properties.
View article: Subsurface Fe (II) affects concentrations of dissolved O2 in streamwater
Subsurface Fe (II) affects concentrations of dissolved O2 in streamwater Open
The interface between groundwater and surface water is a critical zone influencing ecohydrological and biogeochemical cycles within surface water ecosystems. It is characterized by complex redox gradients, with groundwater-mediated inflow …
View article: Sulfate affinity controls phosphate sorption and the proto-transformation of schwertmannite
Sulfate affinity controls phosphate sorption and the proto-transformation of schwertmannite Open
Schwertmannite is a metastable sulfate-rich ferric iron Fe(III) (oxyhydr)oxide and a common mineral in acid mine drainage sites and acid sulfate soils. Schwertmannite is also used as a sorbent in various industrial applications, including …
View article: Sulfate affinity controls phosphate sorption and the proto-transformation of schwertmannite
Sulfate affinity controls phosphate sorption and the proto-transformation of schwertmannite Open
Schwertmannite is a metastable sulfate-rich ferric iron Fe(III) (oxyhydr)oxide and a common mineral in acid mine drainage sites and acid sulfate soils. Schwertmannite is also used as a sorbent in various industrial applications, including …
View article: UV-weathering affects heteroaggregation and subsequent sedimentation of polystyrene microplastic particles with ferrihydrite
UV-weathering affects heteroaggregation and subsequent sedimentation of polystyrene microplastic particles with ferrihydrite Open
Microplastic (MP) particles are ubiquitous in aquatic environments. There they interact with naturally occurring particles and colloids. Processes like aggregation affect not only MP surface properties but also removal from the water colum…
View article: Sulfate affinity controls phosphate sorption and the proto-transformation of schwertmannite
Sulfate affinity controls phosphate sorption and the proto-transformation of schwertmannite Open
Schwertmannite is a metastable sulfate-rich ferric iron Fe(III) (oxyhydr)oxide and a common mineral in acid mine drainage sites and acid sulfate soils. Schwertmannite is also used as a sorbent in various industrial applications, including …
View article: Controls on recent pyrite formation in aquatic systems and its relevance for environmental processes
Controls on recent pyrite formation in aquatic systems and its relevance for environmental processes Open
The formation of pyrite has been extensively studied because of its abundance in many anoxic environments such as marine and river sediments, groundwater aquifers, and peat lands, and hence its importance in both iron and sulfur cycling. I…
View article: A rapid method to quantify sub-micrometer polystyrene particles in aqueous model systems by TOC Analysis
A rapid method to quantify sub-micrometer polystyrene particles in aqueous model systems by TOC Analysis Open
This file contains datasets that were generated during laboratory-based experiments.
View article: A rapid method to quantify sub-micrometer polystyrene particles in aqueous model systems by TOC Analysis
A rapid method to quantify sub-micrometer polystyrene particles in aqueous model systems by TOC Analysis Open
This file contains datasets that were generated during laboratory-based experiments.
View article: A rapid method to quantify sub-micrometer polystyrene particles in aqueous model systems by TOC analysis
A rapid method to quantify sub-micrometer polystyrene particles in aqueous model systems by TOC analysis Open
For several laboratory experiments with microplastics, a simple and fast quantification method is advantageous. At the same time, the requirements are often lower compared to microplastic detection from environmental samples. We determined…
View article: Global Warming and Continued External Loading Alters Nitrogen and Phosphorus Balance in the Franconian Lake District
Global Warming and Continued External Loading Alters Nitrogen and Phosphorus Balance in the Franconian Lake District Open
Data belonging to Limnology and Oceanography upload: Global Warming and Continued External Loading Alters Nitrogen and Phosphorus Balance in a Temperate Reservoir System. Global warming will intensify in the coming century. Consequently cy…
View article: Impact of iron addition on phosphorus dynamics in sediments of a shallow peat lake 10 years after treatment
Impact of iron addition on phosphorus dynamics in sediments of a shallow peat lake 10 years after treatment Open
Internal phosphorus (P) loading is a key water quality challenge for shallow lakes. Addition of iron (Fe) salts has been used to enhance P retention in lake sediments. However, its effects on sediment geochemistry are poorly studied, albei…
View article: Dataset on simulations of Kinetic of Fe(II) oxidation
Dataset on simulations of Kinetic of Fe(II) oxidation Open
This upload contains simulation and fitting data matching figures in the publication "Kinetic constraints for the formation of microniches for microaerophilic Fe(II) oxidation”, Peiffer et al, submitted to GCA. It further contains the matl…
View article: Dataset on simulations of Kinetic of Fe(II) oxidation
Dataset on simulations of Kinetic of Fe(II) oxidation Open
This upload contains simulation and fitting data matching figures in the publication "Kinetic constraints for the formation of microniches for microaerophilic Fe(II) oxidation”, Peiffer et al, submitted to GCA. It further contains the matl…
View article: Fe solid phase chemistry and its effect on P retention in the sediment of a eutrophic peat lake 10 years after Fe amendment
Fe solid phase chemistry and its effect on P retention in the sediment of a eutrophic peat lake 10 years after Fe amendment Open
Globally, surface water quality and ecosystem functioning are challenged by anthropogenic P inputs. While sterner legislation has led to lower external P loading, internal loading fed by legacy P accumulated in the sediment has become the …
View article: Ferrihydrite coating reduces microplastic induced soil water repellency
Ferrihydrite coating reduces microplastic induced soil water repellency Open
Addition of microplastics (MP) to soil has the potential to increase soil water repellency. Absorption of soil abundant substances on MP surfaces has the potential to overcome MP inherent hydrophobicity.
View article: Schwertmannite as a new sorbent for phosphate immobilization: The role of pH and sulfate release
Schwertmannite as a new sorbent for phosphate immobilization: The role of pH and sulfate release Open
Schwertmannite is a nanocrystalline ferric oxyhydroxysulfate mineral with a variable chemical composition, simplified as Fe 8 O 8 (OH) 8-2x (SO 4 ) x (with 1≤ x ≤ 1.75).Although there is still some controversy with regard to its actual str…