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CO_(2)capture costs of chemical looping combustion of biomass:A comparison of natural and synthetic oxygen carrier

Journal of Energy Chemistry 2024年第5期92卷 296-310页

作者： Benjamin Fleiß Juraj Priscak Martin Hammerschmid Josef Fuchs Stefan Müller Hermann Hofbauer Institute of Chemical Environmental and Bioscience EngineeringTU WienVienna1060 ViennaAustria BEST–Bioenergy and Sustainable Technologies GmbH Graz8010 StyriaAustria

Chemical looping combustion has the potential to be an efficient and low-cost technology capable of contributing to the reduction of the atmospheric concentration of CO_(2) in order to reach the 1.5/2°C goal and mitigate climate *** this process,a metal oxide is used as oxygen carrier in a dual fluidized bed to generate clean CO_(2) via combustion of *** commonly,natural ores or synthetic materials are used as oxygen carrier whereas both must meet special requirements for the conversion of solid *** oxygen carriers are characterized by higher reactivity at the expense of higher costs versus the lower-cost natural *** determine the viability of both possibilities,a techno-economic comparison of a synthetic material based on manganese,iron,and copper to the natural ore ilmenite was *** synthetic oxygen carrier was characterized and tested in a pilot plant,where high combustion efficiencies up to 98.4%and carbon capture rates up to 98.5%were *** techno-economic assessment resulted in CO_(2) capture costs of 75 and 40€/tCO_(2) for the synthetic and natural ore route respectively,whereas a sensitivity analysis showed the high impact of production costs and attrition rates of the synthetic *** synthetic oxygen carrier could break even with the natural ore in case of lower production costs and attrition rates,which could be reached by adapting the production process and recycling *** comparison to state-of-the-art technologies,it is demonstrated that both routes are viable and the capture cost of CO_(2) could be reduced by implementing the chemical looping combustion technology.

关键词： Chemical looping combustion BECCS Techno-economic assessment CO_(2)capture costs Oxygen carrier development Synthetic materials Ilmenite

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A multi-isotope approach (Pb, S, N, O and Sr) to estimate the impact of long distance air pollution

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Chinese Journal Of Geochemistry 2006年第B8期25卷 154-155页

作者： Martin Kralik Franko Humer Johannes Grath Johanna Nurmi-Legat Andrea Hanus-Illnar Stan Halas Monika Jelenc umweltbundesamt austria （federal environment agency austria） Spittelauer Laende 5 A-1090 Vienna Austria Mass Spectrometry Laboratory Marie-Curie-Sklodowska Univ. PL-20-031 Lublin Poland Geochronology Lab. Inst. of Geological Sci. Univ. of Vienna Althanstr. 14 A-1090 Vienna Austria

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Single carbon metabolism–A new paradigm for microbial bioprocesses?

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Synthetic and Systems Biotechnology 2024年第2期9卷 322-329页

作者： Michael Baumschabl Özge Ata Diethard Mattanovich austrian Centre of Industrial Biotechnology(ACIB) Vienna1190Austria university of Natural Resources and Life Sciences Department of BiotechnologyInstitute of Microbiology and Microbial BiotechnologyViennaAustria

Increasing atmospheric carbon dioxide levels,a reduction of arable land area and the dependence of first and second generation biotechnology feedstocks on agricultural products,call for alternative,sustainable feedstock sources for industrial *** direct use of CO_(2)or conversion of CO_(2)into other single carbon(C1)sources have great potential as they might help to reduce carbon emissions and do not compete with agricultural land *** we discuss the microbial use of C1 carbon sources,their potential applications in biotechnology,and challenges towards sustainable C1-based industrial biotechnology *** focus on methanol,formic acid,methane,syngas,and CO_(2)as feedstocks for bioprocesses,their assimilation pathways,current and emerging applications,and limitations of their *** mini-review is intended as a first introduction for researchers who are new to the field of C1 biotechnology.

关键词： Sustainability BioeconomyCarbon dioxide Methanol Formate Methane

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Comparative evaluations of visualization onboarding methods

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Visual Informatics 2022年第4期6卷 34-50页

作者： Christina Stoiber Conny Walchshofer Margit Pohl Benjamin Potzmann Florian Grassinger Holger Stitz Marc Streit Wolfgang Aigner St.Poelten university of Applied Sciences St.PoeltenAustria Johannes Kepler university Linz LinzAustria TU Wien ViennaAustria datavisyn GmbH LinzAustria

Comprehending and exploring large and complex data is becoming increasingly important for a diverse population of users in a wide range of application *** has proven to be well-suited in supporting this endeavor by tapping into the power of human visual ***,non-experts in the field of visual data analysis often have problems with correctly reading and interpreting information from visualization idioms that are new to *** support novices in learning how to use new digital technologies,the concept of onboarding has been successfully applied in other fields and first approaches also exist in the visualization ***,empirical evidence on the effectiveness of such approaches is ***,we conducted three studies with Amazon Mechanical Turk(MTurk)workers and students investigating visualization onboarding at different levels:(1)Firstly,we explored the effect of visualization onboarding,using an interactive step-by-step guide,on user performance for four increasingly complex visualization techniques with time-oriented data:a bar chart,a horizon graph,a change matrix,and a parallel coordinates *** performed a between-subject experiment with 596 participants in *** results showed that there are no significant differences between the answer correctness of the questions with and without ***,participants commented that for highly familiar visualization types no onboarding is ***,for the most unfamiliar visualization type—the parallel coordinates plot—performance improvement can be observed with onboarding.(2)Thus,we performed a second study with MTurk workers and the parallel coordinates plot to assess if there is a difference in user performances on different visualization onboarding types:step-by-step,scrollytelling tutorial,and video *** study revealed that the video tutorial was ranked as the most positive on average,based on a sentiment analysis,followed by the scrollyt

关键词： Visualization literacy User onboarding Learning Visual analytic

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Size and dispersion of urticating setae in three species of processionary moths

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Integrative Zoology 2014年第3期9卷 320-327页

作者： Edoardo PETRUCCO TOFFOLO Daniel ZOVI Chiara PERIN Paolo PAOLUCCI Alain ROQUES Andrea BATTISTI Helmuth HORVATH Department of Agronomy Food Natural Resources Animals and environment-Entomology University of PadovaLegnaroItaly INRA National Institute for Agricultural ResearchForest Zoology(UR 0633)OrleansFrance Faculty of Physics Aerosol and Environmental PhysicsUniversity of ViennaViennaAustria

Larvae of the processionary moths of the Palaearctic region bear urticating setae that are released against vertebrate predators,especially insectivorous birds.A few species are pests of forest and urban trees and,consequently,may threaten human and animal health during outbreaks,causing dermatitis,conjunctivitis and respiratory *** some studies provide detailed information about the setae,particularly those of the pine processionary moth Thaumetopoea pityocampa,there is little knowledge on the morphological traits of the setae and their release by the *** the present study we identify major traits of the setae of 3 species of processionary moth,***,*** and ***,which are potentially helpful in the understanding of setae dynamics in the environment:(i)diameter and length of setae and(ii)analysis of dynamical properties of the setae in the airborne *** are highly variable in size,with bimodal distribution in *** and ***;in these 2 species,short and long setae are interspersed within the integument fields where they *** difference in the seta size has important consequences in dispersion,as smaller setae can spread 5 times further than their bigger *** information is relevant for a full understanding of the defensive importance of larval setae against natural enemies of the processionary moths,as well for elucidating the importance of the processionary setae as air pollutants,both close to the infested trees and at longer distances.

关键词： bio-aerosol Lepidoptera pollution seta dispersion seta size Thaumetopoea

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Evaluation of soil erosion risk and identification of soil cover and management factor (C) for RUSLE in European vineyards with different soil management

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International Soil and Water Conservation Research 2020年第4期8卷 337-353页

作者： M.Biddoccu G.Guzmán G.Capello T.Thielke P.Strauss S.Winter J.G.Zaller A.Nicolai D.Cluzeau D.Popescu C.Bunea A.Hoble E.Cavallo J.A.Gómez Institute for Agricultural and Earthmoving Machines(IMAMOTER) National Research Council of Italy(CNR)TorinoItaly Institute for Sustainable Agriculture CSICCordobaSpain Institute for Land and Water Management Research Federal Agency for Water ManagementPetzenkirchenAustria Institute of Plant Protection and Institute of Integrative Nature Conservation Research University of Natural Resources and Life SciencesViennaAustria Institute of Zoology University of Natural Resources and Life Sciences ViennaViennaAustria universitéRennes 1 Station Biologique de PaimpontUMR 6553 EcoBio35380PaimpontFrance SC JIDVEI SRI Research DepartmentJidveiRomania university of Agriculture Science and Veterinary Medicine Cluj NapocaRomania

Vineyards show some of the largest erosion rates reported in agricultural areas in *** rates vary considerably under the same land use,since erosion processes are highly affected by climate,soil,topography and by the adopted soil management *** also shows differences in the effect of same conservation practices on reducing soil erosion from conventional,bare soil based,*** Revised universal Soil Loss Equation(RUSLE)is commonly adopted to estimate rates of water erosion on cropland under different forms of land use and management,but it requires proper value of soil cover and management(C)factors in order to obtain a reliable evaluation of local soil erosion *** this study the ORUSCAL(Orchard RUSle CALibration)is used to identify the best calibration strategy against long-term experimental ***,ORUSCAL is used in order to apply the RUSLE technology from farm based information across different European wine-growing *** results suggest that the best strategy for calibration should incorporate the soil moisture sub-factor(Sm)to provide better soil loss *** C factor,whose average values ranged from 0.012 to *** a large spatial variability due to coupling with local climate and specific local *** comparison across the five wine-growing regions indicates that for the soil protection management,permanent cover crop is the best measure for accomplishing sustainable erosion rates across the studied *** and temporary cover crops,that are used in areas of limited water resources to prevent competition with vines,failed to achieve sustainable erosion rates,that still need to be *** raises the need for a careful use of C values developed under different environmental conditions.

关键词： Vineyard Erosion Soil management RUSLE Europe

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Potential for natural and enhanced attenuation of sulphanilamide in a contaminated chalk aquifer

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Journal of environmental Sciences 2017年第12期29卷 39-48页

作者： Karen A.Bennett Simon D.Kelly Xiangyu Tang Brian J.Reid School of environmental Sciences University of East AngliaNorwich Research ParkNorwich NR4 7TJUK Food and environmental Protection Laboratory International Atomic Energy Agency1400 ViennaAustria Key Laboratory of Mountain Surface Processes and Ecological Regulation Institute of Mountain Hazards and EnvironmentChinese Academyof SciencesChengdu 610041China

Understanding antibiotic biodegradation is important to the appreciation of their fate and removal from the environment. In this research an Isotope Ratio Mass Spectrometry（IRMS）method was developed to evaluate the extent of biodegradation of the antibiotic,sulphanilamide, in contaminated groundwater. Results indicted an enrichment in δ^（13）C of8.44‰ from-26.56（at the contaminant source） to-18.12‰（300 m downfield of the source）.These results confirm reductions in sulphanilamide concentrations（from 650 to 10 mg/L）across the contaminant plume to be attributable to biodegradation（56%） vs. other natural attenuation processes, such as dilution or dispersion（42%）. To understand the controls on sulphanilamide degradation ex-situ microcosms assessed the influence of sulphanilamide concentration, redox conditions and an alternative carbon source. Results indicated, high levels of anaerobic capacity（~50% mineralisation） to degrade sulphanilamide under high（263 mg/L）, moderate（10 mg/L） and low（0.02 mg/L） substrate concentrations. The addition of electron acceptors; nitrate and sulphate, did not significantly enhance the capacity of the groundwater to anaerobically biodegrade sulphanilamide. Interestingly, where alternative carbon sources were present, the addition of nitrate and sulphate inhibited sulphanilamide biodegradation. These results suggest, under in-situ conditions, when a preferential carbon source was available for biodegradation, sulphanilamide could be acting as a nitrogen and/or sulphur source. These findings are important as they highlight sulphanilamide being used as a carbon and a putative nitrogen and sulphur source, under prevailing iron reducing conditions.

关键词： Antibiotics Sulphonamide Groundwater contamination Biodegradation Stable isotope fractionation IRMS

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Perspectives of visualization onboarding and guidance in VA

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Visual Informatics 2022年第1期6卷 68-83页

作者： Christina Stoiber Davide Ceneda Markus Wagner Victor Schetinger Theresia Gschwandtner Marc Streit Silvia Miksch Wolfgang Aigner St.Pölten university of Applied Sciences Austria TU Wien Austria Erste Group Bank AG Austria Johannes Kepler university Linz Austria

A typical problem in Visual Analytics(VA)is that users are highly trained experts in their application domains,but have mostly no experience in using VA ***,users often have difficulties interpreting and working with visual *** overcome these problems,user assistance can be incorporated into VA systems to guide experts through the analysis while closing their knowledge *** types of user assistance can be applied to extend the power of VA,enhance the user’s experience,and broaden the audience for *** different approaches to visualization onboarding and guidance in VA already exist,there is a lack of research on how to design and integrate them in effective and efficient ***,we aim at putting together the pieces of the mosaic to form a coherent *** on the Knowledge-Assisted Visual Analytics model,we contribute a conceptual model of user assistance for VA by integrating the process of visualization onboarding and guidance as the two main approaches in this *** a result,we clarify and discuss the commonalities and differences between visualization onboarding and guidance,and discuss how they benefit from the integration of knowledge extraction and ***,we discuss our descriptive model by applying it to VA tools integrating visualization onboarding and guidance,and showing how they should be utilized in different phases of the analysis in order to be effective and accepted by the user.

关键词： User assistance Visual Analytics Conceptual model Visualization onboarding Guidance

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Diagenetic history and porosity evolution of the Middle Permian clastic-carbonate mixed system,Indus Basin,Pakistan:Implications for reservoir development

Energy Geoscience

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Energy Geoscience 2024年第4期5卷 156-173页

作者： Bilal Wadood Suleman Khan Michael Wagreich Torsten Vennemann Hong Li Matee Ullah Katerina Schöpfer Department of Geology University of SwabiAnbar-Swabi23561Pakistan State Key Laboratory of Continental Dynamics Department of GeologyNorthwest UniversityXi'an710069China Department of Geology University of ViennaViennaA-1090Austria Department of Geology University of PeshawarPeshawar25120Pakistan Institute of Earth Surface Dynamics University of LausanneLausanneCH-1015Switzerland Department of Lithospheric Research University of ViennaViennaA-1090Austria

This study deals with unraveling the diagenesis-induced porosity evolution in a mixed clastic-carbonate sequence of the Middle Permian Indus Basin,*** data sets including outcrop,petrography,cathodoluminescence,scanning electron microscopy(SEM),mineralogy,and geochemical isotopic compositions were integrated to establish a link between porosity evolution and *** spatial thickness and facies variations of the strata at outcrop scale are inherently controlled by the underlying bathymetry of the basin with deepening westward *** low values ofδ^(18)O of the target strata,relative to average values of the Permian carbonate,hints to diagenetic alteration in the *** data sets used in this study reveal modification of the strata in four environments,that is,i)early marine diagenesis indicated by micritization,pervasive dolomitization and isopachous fibrous cements,followed by ii)meteoric dissolution,and iii)shallow burial diagenetic processes including the precipitation of blocky cement,compaction of skeletal and non-skeletal allochems,and stylolites,and iv)a deep burial environment,characterized by pressure solution,and *** clastic intervals host subangular to subrounded quartz grains,floating textures,and almost complete absence of deleterious clay minerals,consequently resulting in the preservation of primary *** primary porosity of carbonate intervals is preserved in the form of intercrystalline and intracrystalline *** secondary porosity evolved through various diagenetic phases in the form of fractures and *** diagenetic solution mediated by organic matter in carbonates may have experienced both bacterial decomposition and thermochemical sulfate reduction,precipitating sulfides within the *** plug porosity/permeability analyses generally suggest high porosity in the siliciclastic unit,and carbonates with wackestone fabric while lower values were observed for the inner shelf pure

关键词： Reservoir Diagenesis Porosity Permian Indus Basin

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Novel sediment source fingerprinting quantifying erosion-induced total nitrogen and total phosphorus outputs from an intensive agricultural catchment,North China

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International Soil and Water Conservation Research 2023年第3期11卷 494-506页

作者： Hanqing Yu Joseph Adu-Gyamfi Suarau Odutola Oshunsanya Adrian Chappell Wenxiang Liu Yu Zheng Tingting Xue Lee Heng Agricultural Clean Watershed Research Group Institute of Environment and Sustainable Development in AgricultureChinese Academy of Agricultural Sciences(CAAS)Haidian District100081BeijingChina International Atomic Energy agency ViennaAustria Department of Agronomy University of IbadanNigeria School of Earth and environmental Sciences Cardif UniversityCardifUK Chongqing Branch Institute Changjiang River Scientific Research InstituteChongqing400026China

Intensive farming is a primary cause of increased sediment and associated nitrogen(N)and phosphorus(P)loads in surface water *** their contributing sources,pathways and loads present major challenges in the high-intensity agricultural ***,we quantify the sediment sources and magnitude of sediment total N and total P from different sources using a novel application of compound-specific stable isotope(CSSI)and fallout radionuclides(FRNs)of^(137)cs and^(210)pbex in an intensive agricultural catchment in North *** sources from surface and sub-surface soils were estimated from FRNs fingerprint and accounted for 62±7%and 38±7%respectively,while surface soil from land uses that originated from hillslope were identified by CssI *** a novel application of FRNs and CSSI sediment fingerprinting techniques,the dominant sediment source was derived from maize farmland(44±0.1%),followed by channel bank(38±7%).The sedimentation rate(13.55±0.30 t ha^(-1)yr^(-1))was quantifed by the^(137)cs cores(0-60 cm)at the outlet of this *** total N and total P in sediment were both mostly derived from maize farmland and least from channel *** channel banks are significant sediment sources but contribute little to the input of sediment N and P for *** implies that chemically-applied farmlands are the main hotspots for catchment erosion control and pollution *** novel application of FRNs and CSSI techniques cost-effectively quantified sediment N and P loads from different sources with a single visit to the catchment,enabling rapid assessment for optimizing soil conservation strategies and land management practices.

关键词： Sediment sources Land use N and P loads Compound-specific stable isotope Falloutradionuclides

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