Browsing by Author "Waclawek Stanislaw"
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- ItemA novel approach for simultaneous improvement of dewaterability, post-digestion liquor properties and toluene removal from anaerobically digested sludge(2016-01-01) Waclawek Stanislaw; Grübel Klaudiusz; Dennis Philip; Vellora Thekkae Padil Vinod; Černík Miroslav
- ItemActivated carbon nanofibres from gum kondagogu for remediation of toxic metals(2015-01-01) Vellora Thekkae Padil Vinod; Waclawek Stanislaw; Černík Miroslav
- ItemAtmospheric Chemistry and Climate in the Anthropocene(Versita, 2015-01-01) Crutzen Paul; Waclawek Stanislaw
- ItemBehaviour of Ag and Si-graphite nanomaterials in environmental and extreme conditions(2016-01-01) Waclawek Stanislaw; Vellora Thekkae Padil Vinod; Nguyen Nhung Anh Huynh; Calais Jean-François; Ševců Alena; Černík Miroslav
- ItemChemical degradation of PCDD/F in contaminated sediment(SOC ECOLOGICAL CHEMISTRY & ENGINEERING, 2016-01-01) Hrabák Pavel; Homolková Martina; Černík Miroslav; Waclawek Stanislaw
- ItemChemistry of persulfates in water and wastewater treatment: a review(2017-01-01) Waclawek Stanislaw; Lutze Holger; Grübel Klaudiusz; Vellora Thekkae Padil Vinod; Černík Miroslav; Dionysiou DionysiosPersulfate decontamination technologies either utilizing radical driven processes or direct electron transfer are very powerful tools for the treatment of a broad range of impurities, including halogenated olefins, BTEXs (benzene, toluene, ethylbenzene and xylenes), perfluorinated chemicals, phenols, pharmaceuticals, inorganics and pesticides. Furthermore, the reactivity of persulfates is extremely dependent on the related activation techniques and the composition of the treated water matrix. Direct reactions of peroxydisulfate (PDS) or peroxymonosulfate (PMS) are rather slow and mostly unsuitable for pollutant degradation. However, PDS or PMS decompose at elevated temperatures under UV radiation, and radiolysis treatment as well as in presence of reduced metal ions to form sulfate radicals (SO4−). (SO4−)-based oxidation can also form secondary oxidants for instance carbonate radicals, hydroxyl radicals, superoxide radicals or singlet oxygen which can influence both transformation efficiency and product formation. The formation of such species is extremely subjected on the water matrix composition and can hardly be predicted. One important aspect in dealing with PDS or PMS is their analysis, which is often prone for interference by other matrix components and hampered by the low stability of PDS and PMS in aqueous systems. Numerous methods for analysis of PDS and PMS are available. The present work also provides an overview on these methods.
- ItemA comprehensive methodology for laboratory tests for study of reducing or oxidizing agents supported by electric field(2015-01-01) Nosek Jaroslav; Jiříčková Lucie; Waclawek Stanislaw; Kvapilová Štěpánka; Antoš Vojtěch
- ItemElectrospun fibers based on Arabic, karaya and kondagogu gums(Elsevier, 2016-01-01) Vellora Thekkae Padil Vinod; Senan Chandra; Waclawek Stanislaw; Černík Miroslav
- ItemElectrospun membrane composed of poly [acrylonitrile-co-(methyl acrylate)-co-(itaconic acid)] terpolymer and ZVI nanoparticles and its application for the removal of arsenic from water(2016-01-01) Vellora Thekkae Padil Vinod; Filip Jan; Suresh Kattimuttathu I.; Waclawek Stanislaw; Černík Miroslav
- ItemEnhancement of stability and reactivity of nanosized zero-valent iron with polyhydroxybutyrate(2017-01-01) Waclawek Stanislaw; Chronopoulou Laura; Petrangeli Papini Marco; Vellora Thekkae Padil Vinod; Palocci Cleofe; Kupčík Jaroslav; Černík MiroslavPolyhydroxybutyrate (PHB) is a bacterial storage polyester, which is produced directly in the acti-vated sludge process. In the present study, PHB was tested as a scaffold material for stabilization of nanosized zero-valent iron (nZVI). The morphology of the resulting composite was assessed using transmission electron microscopy (TEM) and scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDX) analysis. In addition, the surface chemistry and particle stabilities of nZVI and nZVI/PHB were determined with zeta potential analysis and disc centrifuge measurements, respectively. Moreover, the sedimentation rate of bare nZVI was tested and com-pared with that for nZVI/PHB. Batch experiments further confirmed that nZVI/PHB particles are not only more stable but also more reactive toward perchloroethene (PCE) and Cr(VI) in comparison with the bare nZVI. These results suggest that PHB can be developed as an inexpensive and environ-mentally friendly material for the stabilization of nZVI particles.
- ItemGreen synthesis of gold nanoparticles using Artemisia dracunculus extract: control of the shape and size by varying synthesis conditions(Springer Berlin Heidelberg, 2018-01-01) Waclawek Stanislaw; Gončuková Zuzanna; Adach Kinga Izabela; Fijalkowski Mateusz; Černík Miroslav
- ItemGreen Synthesis: Nanoparticles and Nanofibres Based on Tree Gums for Environmental Applications(2016-01-01) Vellora Thekkae Padil Vinod; Waclawek Stanislaw; Černík Miroslav
- ItemGroundwater Remediation by in Situ Chemical Oxidation - Advantages and Pitfals(Brno University of Technology, 2014-01-01) Kakosová Eva; Waclawek Stanislaw; Hrabák Pavel
- ItemGum karaya (Sterculia urens) stabilized zero-valent iron nanoparticles: characterization and applications for the removal of chromium and volatile organic pollutants from water(Royal Society of Chemistry, 2017-01-01) Vellora Thekkae Padil Vinod; Waclawek Stanislaw; Chandra Chanrda; Černík Miroslav; Kupčík Jaroslav; Pešková Kristýna; H. M Somashekarappa
- ItemThe Impact of Oxone on Disintegration and Dewaterability of Waste Activated Sludge(Water Environment Federation, 2016-01-01) Waclawek Stanislaw; Grübel Klaudiusz; Chłąd Zuzanna; Dudziak Mariusz; Černík Miroslav
- ItemImpact of peroxydisulphate on disintegration and sedimentation properties of municipal wastewater activated sludge(WALTER DE GRUYTER GMBH, 2015-01-01) Waclawek Stanislaw; Grübel Klaudiusz; Chłąd Zuzanna; Dudziak Mariusz; Černík Miroslav
- ItemLaboratory Tests of Various Remediation Methods for the Site Tesla Jablonn(2014-01-01) Nosek Jaroslav; Jiříček Tomáš; Hrabák Pavel; Waclawek Stanislaw; Jiříčková Lucie
- ItemMajor Advances and Challenges in Heterogeneous Catalysis for Environmental Applications: A Review(Walter de Gruyter GmbH, 2018-01-01) Waclawek Stanislaw; Vellora Thekkae Padil Vinod; Černík MiroslavHeterogeneous catalysis is one of the fastest developing branches of chemistry. Moreover, it is strongly connected to popular environment-related applications. Owing to the very fast changes in this field, for example, numerous discoveries in nanoscience and nanotechnologies, it is believed that an update of the literature on heterogeneous catalysis could be beneficial. This review not only covers the new developments of heterogeneous catalysis in environmental sciences but also touches its historical aspects. A short introduction to the mechanism of heterogeneous catalysis with a small section on advances in this field has also been elaborated. In the first part, recent innovations in the field of catalytic air, water, wastewater and soil treatment are presented, whereas in the second part, innovations in the use of heterogeneous catalysis for obtaining sustainable energy and chemicals are discussed. Catalytic processes are ubiquitous in all branches of chemistry and there are still many unsolved issues concerning them.
- ItemMesophilic-thermophilic Fermentation Process of Waste Activated Sludge After Hybrid Disintegration(Versita, 2014-01-01) Waclawek Stanislaw; Grübel Klaudiusz; Machnicka Alicja; Nowicka Ewelina
- ItemRemediation of hexachlorocyclohexanes by cobalt-mediated activation of peroxymonosulfate(2016-01-01) Waclawek Stanislaw; Antoš Vojtěch; Hrabák Pavel; Černík Miroslav