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33 Ergebnisse
Ergebnisse nach Hochschule und Institut
Publikation Circularity and environmental sustainability of organic and printed electronics(Jenny Stanford Publishing, 2024) Le Blévennec, Kévin; Hengevoss, Dirk; Zimmermann, Yannick-Serge; Brun, Nadja; Hugi, Christoph; Lenz, Markus; Corvini, Philippe; Fent, Karl; Nisato, Giovanni; Lupo, Donald; Rudolf, SimoneIn this chapter, the possible role and impact of organic and printed electronics (OPE) in a transition toward a circular economy and more sustainable society will be discussed. The learning targets are twofold: first, understanding main environmental issues associated with the emerging field of OPE, and second, identifying, through a systemic perspective, the enabling potential of these technologies.04A - Beitrag SammelbandPublikation Guidelines on pre- and co-processing of waste in cement production. Use of waste as alternative fuel and raw material(Deutsche Gesellschaft für Internationale Zusammenarbeit (GIZ) GmbH, 2020) Hinkel, Michael; Blume, Steffen; Hinchliffe, Daniel; Mutz, Dieter; Hengevoss, DirkThe main objective of these Guidelines is to improve waste management by offering updated and objective information about pre- and co-processing of waste in the cement industry. They contain knowhow and practical experiences gained in implementing pre- and co-processing since the first edition that served as a reference document in international agreements (e.g. Basel Convention for Hazardous Waste Treatment) and adaptation of various national guidelines. The Guidelines follow common understanding that avoiding and reducing waste is the best way of dealing with current waste problems all over the world. The extension of waste collection to 100% of the population and of waste fractions is notably a prerequisite to manage waste effectively in many countries. However, the Guidelines promote an approach that aims to reduce existing waste problems and at the same time to encourage the use of waste as an alternative source for primary energy and virgin raw materials in cement production. Wherever possible, the concepts of resource efficiency, circular economy, recycling and reuse must be given first priority. Improving waste management will take time. Reaching the status of an effective waste management solution in Europe has taken place over a period of 20-30 years. It has been supported by stringent legislation to monitor quality and emissions. Developing pre- and co-processing as a suitable waste management option requires also time and investments. Rigorous permitting and quality assurance procedures need to be applied. Pre- and coprocessing respects the waste hierarchy and does not contradict it, when these Guidelines are followed. In this context, it can be classified as a technology for energy recovery and mineral recycling. The key for implementation of these Guidelines and to achieve the maximum benefit from pre- and co-processing of waste in cement production continues to be close collaboration and co-operation between the public and the private sectors. Innovative techniques and technical knowhow are available and will be further developed by the private ector, whereas the public sector should ensure that environmental standards are maintained and health and safety regulations are applied and enforced. In addition ethical business conduct, good governance and social responsibility remain prerequisites for successfully implementing the Guidelines.05 - Forschungs- oder ArbeitsberichtPublikation Leaching of dissolved organic carbon from commercial reverse osmosis membranes exacerbates interferences in organic solute rejection during bench-scale filtration(Elsevier, 15.03.2023) Li, Zhao; Orlando, Adriano; Müller, Sarah I.; Ammann, Erik; Ding, An; Desmond, Peter01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Microbial communities and processes in biofilters for post-treatment of ozonated wastewater treatment plant effluent(Elsevier, 15.01.2023) Sauter, Daniel; Steuer, Andrea; Wasmund, Kenneth; Hausmann, Bela; Szewzyk, Ulrich; Sperlich, Alexander; Gnirss, Regina; Cooper, Myriel; Wintgens, Thomas01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Efficient catalytic ozonation over Co-ZFO@Mn-CN for oxalic acid degradation. Synergistic effect of oxygen vacancies and HOO-Mn-NX bonds(Elsevier, 03/2023) Xu, Menglu; Zhang, Yibing; Yin, Huaqin; Wang, Jinnan; Li, Aimin; Corvini, Philippe01A - Beitrag in wissenschaftlicher ZeitschriftPublikation The sulfonamide-resistance dihydropteroate synthase gene is crucial for efficient biodegradation of sulfamethoxazole by Paenarthrobacter species(Springer, 13.07.2023) Wu, Tong; Guo, Sheng-Zhi; Zhu, Hai-Zhen; Yan, Lei; Liu, Zhi-Pei; Li, De-Feng; Jiang, Cheng-Ying; Corvini, Philippe; Shen, Xi-Hui; Liu, Shuang-Jiang01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Boosting light harvesting and charge separation over hollow double-shelled Ag@SrTiO3-TiO2 with Z-scheme heterostructure for highly efficient photocatalytic reduction of nitrate to N2(Elsevier, 01.02.2023) Zhang, Yixuan; Liu, Cong; Zhou, Ye; Wang, Jinnan; Li, Aimin; Corvini, Philippe01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Physiological dependency explains temperature differences in sensitivity towards chemical exposure(Springer, 20.10.2022) Rakel, Kim; Becker, Denis; Bussen, Dino; Classen, Silke; Preuss, Thomas; Strauss, Tido; Zenker, Armin; Gergs, AndréIn chemical risk assessment, extrapolations from laboratory tests to more realistic conditions are essential to address the toxic effects of pesticides on individuals and populations under field conditions. To transfer toxicological laboratory tests to differing temperature conditions, or outdoor field scenarios, the consideration of temperature dependence is essential and increases realism. Special consideration is given to the impact of temperature on direct sensitivity of organisms to pesticides, for which there are only few modelling approaches available so far. We present a concept for applying physiological temperature dependencies to toxicokinetic–toxicodynamic (TKTD) parameters in the General Uniformed Threshold model of Survival (GUTS). To test this approach in an exemplary study, temperature dependencies from studies on the developmental rate of the mayfly Cloeon dipterum were applied to the parameters of a previously parameterised TKTD model of this species after exposure to imidacloprid. Using a physiologically derived temperature correction for the TKTD rate constants, model predictions for independently conducted toxicology experiments with temperature ranges between 7.8 and 26.4 °C were performed for validation. Our approach demonstrates the successful transfer of a physiological observed temperature dependency on toxicity parameters and survival patterns for Cloeon dipterum and imidacloprid as a case study.01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Assessment of water, sanitation, and hygiene services in district health care facilities in rural area of Mekong Delta, Vietnam(Springer, 18.10.2022) Hoang, Thi-Khanh-Dieu; Binh, Quach-An; Bui, Xuan-Thanh; Le, Thi-Hieu; Dang, Bao-Trong; Nguyen, Hong-Hai; Ngo, Thi-Tra-My; Kohler, Petra; Makohliso, Solomzi; Peter, Maryna; Raab, Martin; Vanobberghen, Alexandre; Hayter, Arabella; Schönenberger, KlausAccess to sufficient water, sanitation, and hygiene (WASH) services is a crucial requirement for patients during therapy and general well-being in the hospital. However, in low- and middle-income countries, these services are often inadequate, resulting in increased morbidity and mortality of patients. This study aimed at assessing the current situation of WASH services in six District Health Care Facilities (DHCFs) in rural areas of the Mekong Delta provinces, Vietnam. The results showed that these services were available with inappropriate quality, which did not compromise the stakeholders’ needs. The revealed WASH infrastructures have raised concerns about the prolonged hospital stays for patients and push nosocomial infections to a high level. The safety of the water supply was doubted as the high E. coli (> 60%) and total coliform incidence (86%) was observed with very low residual chlorine concentration (< 0.1 mg/L) in water quality assessment. Moreover, water supply contained a high concentration of iron (up to 15.55 mg/L) in groundwater in one DHCF. Technical assessment tool analysis proved that the improper management and lack of knowledge by human resources were the primary roots of the observed status WASH services. Improvement of the perceptions of WASH should be done for the hospital staff with collaboration and support from the government to prevent incidents in the future.01A - Beitrag in wissenschaftlicher ZeitschriftPublikation Engineering efficient hole transport layer Ferrihydrite-MXene on BiVO4 photoanodes for photoelectrochemical water splitting: Work function and conductivity regulated(Elsevier, 2022) Bai, Weihao; Zhou, Ye; Peng, Gang; Wang, Jinnan; Li, Aimin; Corvini, PhilippeAlthough great interest is focused on development of semiconductor photoanodes for efficient photoelectrochemical (PEC) water splitting, the pressing bottleneck to address the intrinsic charge transport for enhancement of PEC performance still remains to be resolved. Herein, hole transport layer (Fh-MXene) constructed by doping of MXene (Ti3C2) in Ferrihydrite (Fh) is loaded on BiVO4 photoanode. This novel BiVO4@Fh-MXene photoanode achieves high current density of 4.55 mA cm−2 at 1.23 V versus reversible hydrogen electrode (vs. RHE), exhibiting excellent photostability. From electrochemical analysis and density functional theory calculations, high PEC performance is ascribed to incorporation of Fh-MXene as hole transport layer, enhancing conductivity and water oxidation reaction. Notably, MXene can improve band alignment of BiVO4/Fh-MXene interface by tuning work function, which strengthens the built-in electric field for more efficient hole extraction. This work provides a simple method to design photoanodes with efficient charge transport layers for feasible PEC water splitting application.01A - Beitrag in wissenschaftlicher Zeitschrift