Egger Research and Consulting’s Post

I am really happy to share our newly published study entitled "Isotopic and kinetic constraints on methane origins in Icelandic hydrothermal fluids". In this study, led by Andri Stefánsson, we aim to unravel and quantify the sources of methane in high-temperature Icelandic hydrothermal fluids by employing a broad array of geochemical tools (gas chemistry, stable and radioactive isotopes, equilibrium and kinetic modeling). https://lnkd.in/ezT-CnHd

Inactive hydrothermal vent microbial communities are important contributors to deep ocean primary productivity. Active hydrothermal vents are oases for productivity in the deep ocean, but the flow of dissolved substrates that fuel such abundant life ultimately ceases, leaving behind inactive mineral deposits. The rates of microbial activity on these deposits are largely unconstrained. Here we show primary production occurs on inactive hydrothermal deposits and quantify its contribution to new organic carbon production in the deep ocean. Measured incorporation of (14)C-bicarbonate shows that microbial communities on inactive deposits fix inorganic carbon at rates comparable to those on actively venting deposits. Single-cell uptake experiments and nanoscale secondary ion mass spectrometry showed chemoautotrophs comprise a large fraction (>30%) of the active microbial cells. Metagenomic and lipidomic surveys of inactive deposits further revealed that the microbial communities are dominated by Alphaproteobacteria and Gammaproteobacteria using the Calvin-Benson-Bassham pathway for carbon fixation. These findings establish inactive vent deposits as important sites for microbial activity and organic carbon production on the seafloor. Source: Nat Microbiol https://lnkd.in/eEMKAD6F

🚀 Exciting news! 🌍 I am thrilled to share that my latest research, entitled ‘Isotope Dilution Gas Chromatography Coupled to Electron Ionization and Tandem Mass Spectrometry for the Determination of Butyltin Compounds in the Spanish Coastal Marine Sediments’, has been published! This work focuses on the development of an accurate and reliable analytical quantification method for the detection of butyltin compounds (harmful pollutants that pose significant risks to marine ecosystems). By using gas chromatography, isotope dilution and tandem mass spectrometry, we were able to achieve highly accurate measurements in marine sediment samples from the Spanish coast. I am incredibly proud of the results and grateful for the opportunity to contribute to the understanding and monitoring of marine pollution. 🌊🔬 If you are interested in marine chemistry, environmental monitoring or cutting-edge analytical techniques, I invite you to explore the full study [https://lnkd.in/emdxcqA7]. #Research #MarineScience #EnvironmentalChemistry #MassSpectrometry #Chromatography #IsotopeDilution #ButylTinCompounds #MarinePollution #EnrichedStableIsotopes

🌐 Paper alert ! 🚰💧 Thrilled to share insights from our new study on rapid sand filters used in drinking water production! 📚 Title: "Efficient chemical and microbial removal of iron and manganese in a rapid sand filter and impact of regular backwash" 🔄🌊 Aeration followed by rapid sand filtration is a key method for removing iron and manganese from groundwater. In our latest study we assess the intricate factors impacting the success of this process, including raw water characteristics, backwash procedures, and chemical/microbial interactions with the filter medium. For those interested, you can read the paper at: https://lnkd.in/ektAA_3S. Alje Boersma, Lina Piso, Niels A.G.M van Helmond, Wytze Lenstra, Frank Schoonenberg Kegel, Erik van der Pol, Thilo Behrends, Luis C.C. Hurtarte, Paul W.J.J van der Wielen, Maartje van Kessel, Sebastian Lücker & Caroline Slomp 🙌🔬 #WaterTreatment #AppliedGeochemistry #iron #manganese #drinkingwater #geochemistry #geomicrobiology

Check out the article behind the inside front cover of the latest issue of Environmental Science: Atmospheres 🌦 - The effect of aging conditions at equal OH exposure in an oxidation flow reactor on the composition of toluene-derived secondary organic aerosols - from Dr Hendryk Czech and colleagues at the Universität Rostock, University of Eastern Finland, Helmholtz Zentrum München and Forschungszentrum Jülich. Oxidation flow reactors (OFRs) have been increasingly used to conduct research on secondary aerosol formation potential and composition in laboratory and field studies by exposing aerosols to high levels of oxidants in short time periods. In this insightful study, the SOA precursor toluene was photochemically aged in the high-volume OFR “PEAR” 💡. The physical and chemical properties of a toluene-derived SOA were analysed and discussed concerning the effect of OFR conditions and the similarity of OFR-generated tol-SOA to chamber-generated tol-SOA. Read more about this work here ➡ https://lnkd.in/gRrjxKsk 👀 #SOA #aerosol #atmosphericscience #toluene #RSCEnv

I am happy to announce that our latest research paper has been published in Fuel journal, titled "A skeletal mechanism for n-dodecane/ammonia combustion and an open-source reaction scheme optimization tool". The study presents an optimization tool along with a highly reduced n-dodecane/ammonia mechanism. The methodology is open for improvement, and I invite you to contribute via my GitHub page: TolgaKurumus/JCMO Here is the link to the paper: https://lnkd.in/d4f3qydn #combustion #ammonia #dodecane #chemicalKineticMechanism

We are happy to share our recent publication in the International Journal of Biological Macromolecules (IF 8.1)

🔥  67% of service reservoir bacterial standard failures find no root cause, with costs per investigation £4k - £36k and an average of 85 failures per year. The Voice of a Utility Process Engineer: “It’s hard to highlight potential risk areas or know where to invest our resources. We need Orb’s technology to know when bacteria levels go from 20k to 40k cells. That says something is happening in our process and a chance of pathogens.” Orb can help water utilities plan maintenance schedules based on real-time biological risk profiles, preemptively identifying high-risk assets before they become failures and investigations are needed. Join us on our mission for a better water future with Orb’s decentralized monitoring technology. #water #waterinnovation #microbiology #orbmonitor

Assessing Exchange-Correlation Functionals for Heterogeneous Catalysis of Nitrogen Species.

Check out our new collaborative research on biofilm formation by Rhodanobacter species in adverse environments Berkeley Lab Earth and Environmental Sciences Area (EESA) Biosciences Area at Berkeley Lab Funded by #DOE #BER #ENIGMA