@misc{AhmedMartienssenBryantetal., author = {Ahmed, Naveed and Martienssen, Marion and Bryant, Isaac Mbir and Vione, Davide and Bruzzoniti, Maria Concetta and Riedel, Ramona}, title = {Investigation on UV Degradation and Mechanism of 6:2 Fluorotelomer Sulfonamide Alkyl Betaine, Based on Model Compound Perfluorooctanoic Acid}, series = {ChemEngineering}, volume = {8}, journal = {ChemEngineering}, number = {2}, issn = {2305-7084}, doi = {10.3390/chemengineering8020032}, abstract = {The UV treatment of 6:2 FTAB involves the mitigation of this persistent chemical by the impact of ultraviolet radiation, which is known for its resistance to environmental breakdown. UV treatment of PFOA and/or 6:2 FTAB, and the role of responsible species and their mechanism have been presented. Our investigation focused on the degradation of perfluorooctanoic acid (PFOA) and 6:2 fluorotelomer sulfonamide alkyl betaine (6:2 FTAB, Capstone B), using UV photolysis under various pH conditions. Initially, we used PFOA as a reference, finding a 90\% decomposition after 360 min at the original (unadjusted) pH 5.6, with a decomposition rate constant of (1.08 ± 0.30) × 10-4 sec-1 and a half-life of 107 ± 2 min. At pH 4 and 7, degradation averaged 85\% and 80\%, respectively, while at pH 10, it reduced to 57\%. For 6:2 FTAB at its natural pH 6.5, almost complete decomposition occurred. The primary UV transformation product was identified as 6:2 fluorotelomer sulfonic acid (6:2 FTSA), occasionally accompanied by shorter-chain perfluoroalkyl acids (PFAAs) including PFHpA, PFHxA, and PFPeA. Interestingly, the overall decomposition percentages were unaffected by pH for 6:2 FTAB, though pH influenced rate constants and half-lives. In PFOA degradation, direct photolysis and reaction with hydrated electrons were presumed mechanisms, excluding the involvement of hydroxyl radicals. The role of superoxide radicals remains uncertain. For 6:2 FTAB, both direct and indirect photolysis were observed, with potential involvement of hydroxyl, superoxide radicals, and/or other reactive oxygen species (ROS). Clarification is needed regarding the role of 𝑒-𝑎𝑞 in the degradation of 6:2 FTAB.}, language = {en} } @book{HoffmannAndersFischeretal., author = {Hoffmann, Melanie and Anders, Kenneth and Fischer, Lars and B{\"o}llmann, J{\"o}rg and Br{\"u}ckner, Ardo and Brunk, Ingo and Donath, Helmut and Donat, Ralf and Elmer, Michael and G{\"u}th, Mareike and H{\"a}ußler, Robert and Mrzljak, Jadranka and Mudra, Dieter and M{\"u}ller, Markus and Peschel, Tim and Pilz, Wilfried and Sawade, Wolfgang and Schonert, P. and Siedschlag, Marina and Siedschlag, Yvonne and Wanner, Manfred and W{\"o}llecke, Jens}, title = {Kolonisten gesucht! Steckbriefe nat{\"u}rlicher und sozialer Besiedler der Bergbaufolgelandschaft Schlabendorfer Felder}, editor = {Hoffmann, Melanie and Anders, Kenneth and Fischer, Lars}, publisher = {B{\"u}ro f{\"u}r Landschaftskommunikation}, address = {Bad Freienwalde}, pages = {52}, language = {de} } @incollection{ElmerWoelleckeGebhardtetal., author = {Elmer, Michael and W{\"o}llecke, Jens and Gebhardt, Sascha and B{\"o}llmann, J{\"o}rg and Hohberg, Karin and Wanner, Manfred and Xylander, Willi E. R. and H{\"u}ttl, Reinhard F.}, title = {Prim{\"a}rsukzession der Bodenorganismen}, series = {Fokus Biodiversit{\"a}t : wie Biodiversit{\"a}t in der Kulturlandschaft erhalten und nachhaltig genutzt werden kann}, booktitle = {Fokus Biodiversit{\"a}t : wie Biodiversit{\"a}t in der Kulturlandschaft erhalten und nachhaltig genutzt werden kann}, editor = {Hotes, Stefan and Wolters, Volkmar}, publisher = {oekom}, address = {M{\"u}nchen}, isbn = {978-3-86581-172-1}, pages = {125 -- 131}, language = {de} } @misc{OkofoAdonadagaMartienssen, author = {Okofo, Louis Boansi and Adonadaga, Melvin-Guy and Martienssen, Marion}, title = {Groundwater age dating using multi-environmental tracers (SF6, CFC-11, CFC-12, δ18O, and δD) to investigate groundwater residence times and recharge processes in Northeastern Ghana}, series = {Journal of Hydrology}, volume = {Vol. 610}, journal = {Journal of Hydrology}, issn = {1879-2707}, doi = {10.1016/j.jhydrol.2022.127821}, pages = {1 -- 18}, language = {en} } @misc{AhmedMartienssenBryantetal., author = {Ahmed, Naveed and Martienssen, Marion and Bryant, Isaac Mbir and Vione, Davide and Bruzzoniti, Maria Concetta and Riedel, Ramona}, title = {Investigation on UV Degradation and Mechanism of 6:2 Fluorotelomer Sulfonamide Alkyl Betaine, Based on Model Compound Perfluorooctanoic Acid}, series = {ChemEngineering}, volume = {8}, journal = {ChemEngineering}, number = {2}, issn = {2305-7084}, doi = {10.3390/chemengineering8020032}, language = {en} } @misc{AfitiriAramMartienssen, author = {Afitiri, Abdul-Rahaman and Aram, Simon Appah and Martienssen, Marion}, title = {Sytematic review of the effects of Advanced Oxidation Processes integration with solar water disinfection for improved drinking water production}, series = {Waste Management Bulletin}, volume = {1}, journal = {Waste Management Bulletin}, number = {4}, issn = {2949-7507}, doi = {10.1016/j.wmb.2023.08.005}, pages = {52 -- 59}, language = {en} } @misc{BoellmannMartienssen, author = {B{\"o}llmann, J{\"o}rg and Martienssen, Marion}, title = {Seasonal Variability of Cultivable Nitrate-Reducing and Denitrifying Beacteria and Functional Gene Copy Number in Fresh Water Lake}, series = {Microorganisms}, volume = {12}, journal = {Microorganisms}, number = {3}, issn = {2076-2607}, doi = {10.3390/microorganisms12030511}, language = {en} } @misc{BoellmannElmerWoelleckeetal., author = {B{\"o}llmann, J{\"o}rg and Elmer, Michael and W{\"o}llecke, Jens and Raidl, Stefan and H{\"u}ttl, Reinhard F.}, title = {Defensive strategies of soil fungi to prevent grazing by Folsomia candida (Collembola)}, series = {Pedobiologia}, volume = {53}, journal = {Pedobiologia}, number = {2}, issn = {1873-1511}, pages = {107 -- 114}, language = {en} } @incollection{WoelleckeBoellmannSchneideretal., author = {W{\"o}llecke, Jens and B{\"o}llmann, J{\"o}rg and Schneider, Bernd Uwe and H{\"u}ttl, Reinhard F.}, title = {Vergleichende Untersuchungen zur Durchwurzelbarkeit und Mykorrhizierung auf forstlich rekultivierten Kippsubstraten}, series = {Neue Ans{\"a}tze in der land- und forstwirtschaftlichen Rekultivierung}, booktitle = {Neue Ans{\"a}tze in der land- und forstwirtschaftlichen Rekultivierung}, editor = {H{\"u}ttl, Reinhard F. and Schneider, Bernd Uwe}, publisher = {BTU}, address = {Cottbus}, isbn = {978-3-937728-06-3}, pages = {207 -- 224}, language = {de} }