0000000001068053

AUTHOR

Bruno Glaser

showing 5 related works from this author

Mechanisms of Water Interaction with Pore Systems of Hydrochar and Pyrochar from Poplar Forestry Waste

2014

The aim of this study was to understand the water-surface interactions of two chars obtained by gasification (pyrochar) and hydrothermal carbonization (hydrochar) of a poplar biomass. The two samples revealed different chemical compositions as evidenced by solid state (13)C NMR spectroscopy. In fact, hydrochar resulted in a lignin-like material still containing oxygenated functionalities. Pyrochar was a polyaromatic system in which no heteronuclei were detected. After saturation with water, hydrochar and pyrochar were analyzed by fast field cycling (FFC) NMR relaxometry. Results showed that water movement in hydrochar was mainly confined in very small pores. Conversely, water movement in py…

Magnetic Resonance SpectroscopyWater flowSettore AGR/13 - Chimica Agraria1600 General Chemistry1100 General Agricultural and Biological SciencesHydrothermal carbonizationAdsorptionBiocharmedicine910 Geography & travelPorosityWaste ProductsChemistryTemperatureWaterForestryGeneral Chemistry10122 Institute of GeographyPopulusAgronomyChemical engineeringCharcoalGeneral Agricultural and Biological SciencesPorous mediumSaturation (chemistry)Porosityfast field cycling NMR relaxometry hydrochar pyrochar biochar water dynamicsActivated carbonmedicine.drug
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BIOCHARS IN SOILS: TOWARDS THE REQUIRED LEVEL OF SCIENTIFIC UNDERSTANDING

2017

The special issue on Biochar as an Option for Sustainable Resource Management Key priorities in biochar research for future guidance of sustainable policy development have been identified by expert assessment within the COST Action TD1107. The current level of scientific understanding (LOSU) regarding the consequences of biochar application to soil were explored. Five broad thematic areas of biochar research were addressed: soil biodiversity and ecotoxicology, soil organic matter and greenhouse gas (GHG) emissions, soil physical properties, nutrient cycles and crop production, and soil remediation. The highest future research priorities regarding biochar’s effects in soils were: functional …

Soil biodiversityprogramme de recherche scientifique010501 environmental sciences01 natural sciencesSoil managementSoil functionsCHARCOAL PRODUCTION11. SustainabilityBiocharbiodiversity2. Zero hungerSoil healthnutrient cyclessoil remediation04 agricultural and veterinary sciencesCONTAMINATED SOILS6. Clean waterEnvironmental soil science415 Other agricultural sciencesBLACK CARBONsoil physical propertiesSHORT-TERMEnvironmental Engineering[SDE.MCG]Environmental Sciences/Global ChangesSoil biologyManagement Monitoring Policy and Lawecotoxicology12. Responsible consumptionPYROLYSIS TEMPERATURECROP PRODUCTIVITYORGANIC-CARBONsoil organic mattergreenhouse gasesbiocharNUTRIENT AVAILABILITYbiochar biodiversity ecosystem services ecotoxicology greenhouse gases nutrient cycles policy support soil organic matter soil physical properties soil remediation.1172 Environmental sciences0105 earth and related environmental sciencesNature and Landscape ConservationSoil organic matterMICROBIAL BIOMASSEnvironmental engineeringpolicy supportTA170-17115. Life on landGAS EMISSIONS13. Climate action040103 agronomy & agriculture0401 agriculture forestry and fisheriesEnvironmental scienceecosystem servicesJournal of Environmental Engineering and Landscape Management
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A sugar biomarker proxy for assessing terrestrial versus aquatic sedimentary input

2016

Abstract One of the most important and at the same time most challenging issues in paleolimnological research is the differentiation between terrestrial and aquatic sedimentary organic matter (OM). We therefore investigated the relative abundance of the sugars fucose (fuc), arabinose (ara) and xylose (xyl) from various terrestrial and aquatic plants, as well as from algal samples. Algae were characterized by a higher abundance of fucose than vascular plants. Our results and a compilation of data from the literature suggest that fuc/(ara + xyl) and (fuc + xyl)/ara ratios may serve as complementary proxies in paleolimnological studies for distinguishing between terrestrial and aquatic sedimen…

010504 meteorology & atmospheric sciencesbiologyXylose010502 geochemistry & geophysicsbiology.organism_classification01 natural sciencesPaleolimnologyFucosechemistry.chemical_compoundAlgaechemistryGeochemistry and PetrologyAquatic plantBotanySedimentary organic matterSugarRelative species abundance0105 earth and related environmental sciencesOrganic Geochemistry
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How dry was the Younger Dryas? Evidence from a coupled <i>δ</i><sup>2</sup>H–<i&gt…

2019

Abstract. Causes of the Late Glacial to Early Holocene transition phase and particularly the Younger Dryas period, i.e. the major last cold spell in central Europe during the Late Glacial, are considered to be keys for understanding rapid natural climate change in the past. The sediments from maar lakes in the Eifel, Germany, have turned out to be valuable archives for recording such paleoenvironmental changes. For this study, we investigated a Late Glacial to Early Holocene sediment core that was retrieved from the Gemündener Maar in the Western Eifel, Germany. We analysed the hydrogen (δ2H) and oxygen (δ18O) stable isotope composition of leaf-wax-derived lipid biomarkers (n-alkanes C27 an…

Global and Planetary Change010504 meteorology & atmospheric sciencesδ18OStratigraphyPaleontologyClimate change15. Life on land010502 geochemistry & geophysics01 natural sciencesMaarAllerød oscillationPreboreal13. Climate actionPhysical geographyGlacial periodYounger DryasGeologyHolocene0105 earth and related environmental sciencesClimate of the Past
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How dry was the Younger Dryas? Evidence from a coupled δ2H–δ18O biomarker paleohygrometer applied to the Gemündener Maar sediments, Western Eifel, Ge…

2019

Causes of the Late Glacial to Early Holocene transition phase and particularly the Younger Dryas period, i.e. the major last cold spell in central Europe during the Late Glacial, are considered to be keys for understanding rapid natural climate change in the past. The sediments from maar lakes in the Eifel, Germany, have turned out to be valuable archives for recording such paleoenvironmental changes. For this study, we investigated a Late Glacial to Early Holocene sediment core that was retrieved from the Gemündener Maar in the Western Eifel, Germany. We analysed the hydrogen (δ2H) and oxygen (δ18O) stable isotope composition of leaf-wax-derived lipid biomarkers (n-alkanes C27 and C29) and…

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