Sanitär- und Kommunaltechnik; Umwelttechnik
Filtern
Erscheinungsjahr
Dokumenttyp
- Zeitschriftenartikel (113) (entfernen)
Sprache
- Englisch (58)
- Deutsch (51)
- Französisch (2)
- Mehrsprachig (1)
- Polnisch (1)
Referierte Publikation
- nein (113) (entfernen)
Schlagworte
- TED-GC/MS (6)
- Microplastics (5)
- Mikroplastik (5)
- Ersatzbaustoffe (4)
- Microplastic (4)
- Abwasser (3)
- Antikörper (3)
- Bottom ash (3)
- Ectoine (3)
- Klärschlamm (3)
- Normung (3)
- PFAS (3)
- Phosphat (3)
- Recycling (3)
- Biosensoren (2)
- Boden (2)
- Circular economy (2)
- Density separation (2)
- Deponie (2)
- ELISA (2)
- Electron backscatter diffraction (2)
- Ground vibration (2)
- Holzschutz (2)
- Immunoassay (2)
- Klärschlammverordnung (2)
- Korrosion (2)
- Kreislaufwirtschaft (2)
- Kunststoffdichtungsbahnen (2)
- LC-MS/MS (2)
- LIBS (2)
- Lysimeter (2)
- Phosphor (2)
- Polymer (2)
- Secondary raw materials (2)
- Struvit (2)
- Tantal (2)
- Termites (2)
- Thermochemical treatment (2)
- Thermogravimetrie (2)
- Trinkwasser (2)
- 3D-Mikrofluidik (1)
- ABC transporter (1)
- Abfallbehandlung (1)
- Abfalltrennung (1)
- Abfallverbrennung (1)
- Abfälle (1)
- Absicherung (1)
- Abwasserreinigung (1)
- Acidobacteria (1)
- Adsorbtion (1)
- Advanced wastewater treatment (1)
- Aerial robot (1)
- Agronomische Effizienz (1)
- Air fragmentation (1)
- Aktivkohle (1)
- Algae growth test (1)
- Amoxicillin (1)
- Amplitude-distance law (1)
- Analyseverfahren (1)
- Anticorrosion (1)
- Antifouling-Biozide (1)
- Atmosphärische Korrosion (1)
- BEMMA (1)
- Bacterial milking (1)
- Bagasse (1)
- Bakterien (1)
- Barriers (1)
- Batch fermentation (1)
- Bauprodukte (1)
- Bauschäden (1)
- Baustoffe (1)
- Bending modulus (1)
- Beschichtung (1)
- Bestimmungsgrenze (1)
- Betaine (1)
- Bewertungsverfahren (1)
- Binding thermodynamics (1)
- Bio-P-Kläranlage (1)
- Bio-SAXS (1)
- Bio-based concrete (1)
- BioSAXS (1)
- Biodeterioration (1)
- Biokorrosion (1)
- Biokunststoff (1)
- Biologische Schädlingsbekämpfung (1)
- Biotic weathering (1)
- Biozid (1)
- Biozide (1)
- Blast furnace sludge (1)
- Blasting charge (1)
- Bodenmaterialien (1)
- Boracite (1)
- Borate (1)
- Brown-rot fungi (1)
- Building response (1)
- Böden (1)
- CCQM (1)
- CEN (1)
- Calcareous deposits (1)
- Carbon fibres (1)
- Carbon nanotubes (1)
- Cathodic protection (1)
- Cement (1)
- Chemical admixtures (1)
- Chemische Löslichkeit (1)
- Chlorination (1)
- Circular Bio-based Economy (1)
- Circular Economy (1)
- Combined sewer system (1)
- Combustion Ion Chromatography (1)
- Complete enwrapping of fibres (1)
- Computertomographie (1)
- Coniophora puteana (1)
- Constantinomyces (1)
- Construction and demolition waste (1)
- Continuous culture (1)
- Copper (1)
- Coptotermes (1)
- Core microbiome (1)
- Corrosion (1)
- Cosolute (1)
- Cost benefit analysis (1)
- Coûts de la corrosion (1)
- Cumulative energy demand (1)
- DIN (1)
- DNA (1)
- Data fusion (1)
- Degradation of polyethylene (1)
- Deponierung (1)
- Deponieverordnung (1)
- Diatomeenanalytik (1)
- Diclofanc (1)
- Difenoconazole (1)
- Direct material input (1)
- Diversität (1)
- Domestikation (1)
- Dosimetry (1)
- Drop height (1)
- Durability (1)
- Dynamic scanning calorimetry (1)
- Düngemittel (1)
- E. coli (1)
- EU-WFD (1)
- Earth block (1)
- Earth mortar (1)
- Eco-efficiency analysis (1)
- Ecotoxicology (1)
- Ectoin (1)
- Ectoine excretion (1)
- Electric arc furnace dust (1)
- Electrophoretic effect (1)
- Electrospray deposition (1)
- Elektrolichtbogenofen (1)
- Elimination (1)
- Eluatwerte (1)
- Elutionsverfahren (1)
- Elutionsverhalten (1)
- Energy-dispersive x-ray spectroscopy (1)
- Environmental analysis (1)
- Ersatzbaustoff (1)
- Estrogens (1)
- Evolution (1)
- Excitation forces (1)
- Explosion (1)
- Extractable organically bound fluorine (EOF) (1)
- Extrahierbar organisch gebundenes Fluor (EOF) (1)
- Extraktion (1)
- FMPS (1)
- Fassaden (1)
- Feuchtesorption (1)
- Feuerlöschen (1)
- Fiber toxicology (1)
- Fibre release (1)
- Field flow fractionation (1)
- Filter effect of the soil (1)
- Flexural rigidity (1)
- Flow-through columns (1)
- Fluorescence (1)
- Fluoride nanoparticles (1)
- Fluorides (1)
- Fluorolytic sol−gel (1)
- Flügel (1)
- Fourier transform infrared spectroscopy (1)
- Freisetzung (1)
- Freshwater matrices (1)
- Fungi (1)
- Funktionale Betonoberfläche (1)
- Fällmittel (1)
- G5P (1)
- GVP (1)
- Gas chromatography (1)
- Geant4 (1)
- Geant4-DNA (1)
- Genetik (1)
- Geokunststoffe (1)
- Geotechnik (1)
- Geothermie (1)
- Geruchsmessung (1)
- Gold (1)
- Granite (1)
- Granulat (1)
- HMVA (1)
- HPLC (1)
- HPSEC (1)
- HR-CS-GFMAS (1)
- Haptene (1)
- Hi-Tension (1)
- High resolution-continuum source-graphite furnace molecular absorption spectrometry (HR-CS-GFMAS) (1)
- Hochleistungsschweißen (1)
- Hofmeister effect (1)
- Holzschutzmittel (1)
- Holzwurm (1)
- Humic matter (1)
- Hydrazin (1)
- Hydrogen permeation (1)
- Hydrogenasen (1)
- ICP-MS (1)
- ILC (1)
- ISO (1)
- Infrarotspektroskopie (1)
- Initial shear strength (1)
- Ionizing radiation damage (1)
- Isotope dilution analysis (1)
- Jig (1)
- K-feldspar (1)
- Kaltwasserzirkulation (1)
- Kapillarelektrophorese-Massenspektrometrie (1)
- Kläranlage (1)
- Klärschlammasche (1)
- Komplementäre Massenspektrometrie (1)
- Kompost (1)
- Kosmotrope (1)
- Kulturelle Entomologie (1)
- Kunststoff-Dränelemente (1)
- LEE (1)
- Large volume samplers (1)
- Laser-MSG-Hybridschweißen (1)
- Layered soil (1)
- Leaching (1)
- Leaching of waste materials (1)
- Lead (1)
- Lebensdauer (1)
- Lichtbogenofen (1)
- Life cycle assessment (1)
- Limit of quantification (1)
- Lotuseffekt (1)
- Low alloy steel (1)
- Low-temperature-conversion (1)
- Lüftung (1)
- MCR (1)
- MIC (1)
- MIP (1)
- MSG-Schweißen (1)
- Magnetpartikel (1)
- Mantelverordnung (1)
- Masonry (1)
- Mass contents (1)
- Mass drop (1)
- Mass spectrometry (1)
- Material cassification (1)
- Material flow analysis (1)
- Materialschäden (1)
- McSAS3 (1)
- Mechanical treatment (1)
- Mechanische Stabilität (1)
- Melanins (1)
- Metformin (1)
- Methanogene (1)
- Microbial abundance (1)
- Microbially Induced Corrosion (1)
- Microbiology (1)
- Microcolonial fungi (1)
- Microdosimetry (1)
- Microplastic analysis (1)
- Microplastic pathways (1)
- Microplastic pollution (1)
- Microplastics analytic (1)
- Microplastics reference material (1)
- Mikroplastik Massegehalt (1)
- Mikrostrukturierung (1)
- Mobile robot olfaction (1)
- Molecular imprinted polymers (1)
- Monoverbrennung (1)
- Monte-Carlo simulations (1)
- Multielementanalytik in kurzen transienten Signalen (1)
- Multilocus phylogeny (1)
- Multivariat (1)
- Museum (1)
- Myxobacteria (1)
- NDT (1)
- NIR (1)
- NaI (1)
- Nanomaterial (1)
- Nanoparticles (1)
- Nanopartikel (1)
- Natural abundance of 15N (1)
- Natural products discovery (1)
- Naturbaustoffe (1)
- Nitrogen (1)
- Nitrogen fixation (1)
- Nitrogen uptake (1)
- Novelle BBodSchV (1)
- Nährstoffe (1)
- OH Radical (1)
- OH radical scavenger (1)
- Oberflächengewässer (1)
- Online-Analytik (1)
- Organic contaminants (1)
- Osmophobic effect (1)
- Osmoregulation (1)
- P-Recyclingdünger (1)
- P-fractionation (1)
- P-plant-availability (1)
- P-recovery (1)
- PAK (1)
- POP (1)
- Particle scatterin simulations (1)
- Per- and polyfluorinated alkyl substances (PFASs) (1)
- Periplasmic binding protein (1)
- Permeat (1)
- Perowskit (1)
- Pestizid (1)
- Pflanzenverfügbarkeit (1)
- Pflanzenwurzel (1)
- Phosphor-Rückgewinnung (1)
- Phosphorrückgewinnung (1)
- Photocatalytic surfaces (1)
- Photodynamische Inaktivierung (1)
- Photokatalyse (1)
- Photosensibilisator (1)
- Phthalocyanin (1)
- Pilze (1)
- Plagioclase (1)
- Plastic debris (1)
- Polybutylensuccinat (PBS) (1)
- Polycyclic aromatic hydrocarbons (1)
- Polymeranalytik (1)
- Polysaccharides (1)
- Polystyrene (1)
- Polyzyklische aromatische Kohlenwasserstoffe (1)
- Porphyrin (1)
- Powdered activated carbon (1)
- Preferential exclusion (1)
- Pressurised liquid extraction (1)
- Principal component analysis (1)
- Product life cycle (1)
- Protection (1)
- Protein (1)
- Protein protection (1)
- Protein unfolding (1)
- Proteinkonjugate (1)
- Proximate analysis (1)
- Pulveraktivkohle (1)
- Pyrometallurgie (1)
- RFA (1)
- Radiation damage (1)
- Radical Scavenger (1)
- Railway induced vibration (1)
- Raman (1)
- Raw material equivalent (1)
- Recyclability (1)
- Recyclingdüngemittel (1)
- Recyclingfähigkeit (1)
- Reduktionsprozess (1)
- Reference method (1)
- Referenzmethode (1)
- Relative agronomische Effizienz (RAE) (1)
- Religion (1)
- Reparability (1)
- Reparierbarkeit (1)
- Replica-exchange metadynamics (1)
- Resonance frequency (1)
- Resource efficiency (1)
- Retentat (1)
- Rheology (1)
- Rhizosphere (1)
- Rhodonia placenta (1)
- Road construction waste (1)
- Rostasche (1)
- Rotor speed (1)
- SAXS (1)
- SEM wood characterization (1)
- Sand-lime block (1)
- Schadstoffemission (1)
- Schadstoffsorption (1)
- Schaum (1)
- Schmetterlinge (1)
- Schnelltests (1)
- Schweißen (1)
- Schwermetallabgabe (1)
- Secondary building materials (1)
- Secondary transporter (1)
- Selbstreinigende Oberfläche (1)
- Self-healing (1)
- Sensor (1)
- Sensorpartikel (1)
- Separate sewer system (1)
- Sewage sludge (1)
- Sewage treatment plant (1)
- Shear bond test (1)
- Silver nanoparticles (1)
- Simulation devices (1)
- Single cell-ICP-ToF-MS (1)
- Single-stranded DNA-binding proteins (1)
- Small-angle xray scattering (1)
- Social insects (1)
- Soil organic matter (1)
- Solid-liquid extraction (1)
- Solid-liquid-extraction (1)
- Speiseöle (1)
- Stormwater retention tank (1)
- Stratégies deprévention (1)
- Stress tolerance (1)
- Subaerial biofilms (1)
- Sulfamethoxazole (1)
- Sum parameter analysis (1)
- Surface water (1)
- Sustainability (1)
- TED (1)
- Tachometer (1)
- Target stiffness (1)
- Temperature-programmed desorption (1)
- Termite-associated microbes (1)
- Thermal Degradation (1)
- Thermal behaviour (1)
- Thermische Degradation (1)
- Thermische Extraktion (1)
- Thermoanalysis (1)
- Thermoanalytics (1)
- Thermogravimetry (1)
- Tomographic reconstruction of gas plumes (1)
- Topas-MC (1)
- Topas-nBio (1)
- TopasMC (1)
- Toxicology (1)
- Track and vehicle irregularities (1)
- Train passage (1)
- Train speed (1)
- Transformationsprodukte (1)
- Transporter TeaABC (1)
- Trinkwasserinstallation (1)
- Triplet test (1)
- Tunable diode laser absorption Spectroscopy (TDLAS) (1)
- UAV (1)
- UAV-REGAS (1)
- UV degradation (1)
- Ultra-thin polymer layers (1)
- Ultrahochleistungsbeton (1)
- Umwelt (1)
- Umwelt-Speziation (1)
- Umweltschutz (1)
- Umweltsimulation (1)
- Universal stress protein (1)
- Urban mining (1)
- VOC-Emission (1)
- VOC-emission (1)
- Vegetationsversuche (1)
- Verwertung (1)
- Vitrine (1)
- Vorsorgewerte (1)
- Washing machine (1)
- Wasser (1)
- Wasseraufbereitung (1)
- Waste incineration (1)
- Waste treatment (1)
- Waste water treatment (1)
- Water analysis (1)
- Weathering (1)
- Wet-mechanical treatment (1)
- Whole water samples (1)
- Wind vector estimation (1)
- Wood protection (1)
- X-Ray diffraction (1)
- X-ray scattering (1)
- Zentrat (1)
- Zinc (1)
- Zinnschlacke (1)
- Zugversuch (1)
- direct-push (1)
- groundwater contamination (1)
- non-invasive investigation (1)
- phytoscreening (1)
- screening (1)
- ssDNA (1)
- tree core sampling (1)
- trichloroethene (1)
- trichloroethylene (1)
- underexplored phyla (1)
- Ökobilanz (1)
- Ökodesign (1)
- “leaky” mutant (1)
Organisationseinheit der BAM
- 4 Material und Umwelt (34)
- 1 Analytische Chemie; Referenzmaterialien (16)
- 6 Materialchemie (16)
- 6.6 Physik und chemische Analytik der Polymere (14)
- 4.3 Schadstofftransfer und Umwelttechnologien (12)
- 4.1 Biologische Materialschädigung und Referenzorganismen (8)
- 4.4 Thermochemische Reststoffbehandlung und Wertstoffrückgewinnung (8)
- 1.8 Umweltanalytik (7)
- 7 Bauwerkssicherheit (7)
- 8 Zerstörungsfreie Prüfung (6)
Analytische Methoden für die Quantifizierung von Mikroschadstoffen (Synonym für Spurenstoffe) und Pathogenen im Wasser sind eine Grundvoraussetzung für die Umsetzung des Ziels Nr. 6 für Nachhaltige Entwicklung der UN, weltweit sauberes Wasser zur Verfügung zu stellen. Dafür sind schnelle, einfach zu bedienende und kostengünstige Überwachungssysteme notwendig. Antikörperbasierte Biosensoren haben das Potential, z.B. die Eliminationsleistung bezüglich kleiner organischer Moleküle durch die vierte Reinigungsstufe von Kläranlagen vor Ort zu überwachen. Darüber hinaus kommt modernen bioanalytischen Verfahren bei der Quantifizierung von Pathogenen eine immer wichtigere Rolle zu. Neben einer Bestandsaufnahme zu diesen Themen ist es das Ziel dieses Beitrags, die Anwendungsbarrieren von Biosensoren für die Wasseranalytik von Mikroschadstoffen abbauen zu helfen und die Vorzüge moderner bioanalytischer Methoden für die Quantifizierung von Pathogenen aufzuzeigen.
The biogenesis of iron–sulfur (Fe/S) proteins entails the synthesis and trafficking of Fe/S clusters, followed by their insertion into target apoproteins. In eukaryotes, the multiple steps of biogenesis are accomplished by complex protein machineries in both mitochondria and cytosol. The underlying biochemical pathways have been elucidated over the past decades, yet the mechanisms of cytosolic [2Fe-2S] protein assembly have remained ill-defined. Similarly, the precise site of glutathione (GSH) requirement in cytosolic and nuclear Fe/S protein biogenesis is unclear, as is the molecular role of the GSH-dependent cytosolic monothiol glutaredoxins (cGrxs). Here, we investigated these questions in human and yeast cells by various in vivo approaches. [2Fe-2S] cluster assembly of cytosolic target apoproteins required the mitochondrial ISC machinery, the mitochondrial transporter Atm1/ABCB7 and GSH, yet occurred independently of both the CIA system and cGrxs. This mechanism was strikingly different from the ISC-, Atm1/ABCB7-, GSH-, and CIA-dependent assembly of cytosolic–nuclear [4Fe-4S] proteins. One notable exception to this cytosolic [2Fe-2S] protein maturation pathway defined here was yeast Apd1 which used the CIA system via binding to the CIA targeting complex through its C-terminal tryptophan. cGrxs, although attributed as [2Fe-2S] cluster chaperones or trafficking proteins, were not essential in vivo for delivering [2Fe-2S] clusters to either CIA components or target apoproteins. Finally, the most critical GSH requirement was assigned to Atm1-dependent export, i.e. a step before GSH-dependent cGrxs function. Our findings extend the general model of eukaryotic Fe/S protein biogenesis by adding the molecular requirements for cytosolic [2Fe-2S] protein maturation.
Barriers to transitioning to a circular bio-based economy: Findings from an industrial perspective
(2024)
The transition from a linear fossil-based to a circular bio-based economy represents an opportunity and a suitable pathway for achieving several sustainable development goals. However, the transition is a complex process since it requires transformative policies, purposeful innovation, access to finance, risk-taking capacity as well as new and sustainable business models and markets. Accordingly, the first step in this transition process is the identification of barriers that are hampering the transition to a sustainable circular bio-based economy. With this motivation in mind, this study reviews grey literature to identify barriers focusing on four critical sectors facing major challenges within the current linear economy and requiring a sustainable transition most urgently: construction, chemicals, plastics, and textile sectors. Employing an adapted STEEP methodology (Social, Technological, Economical, Environmental, Political), a total of 193 different barriers have been identified and clustered under six categories: cultural, technical, economic, environmental, governance, and structural. Regardless of the sector, cultural and structural barriers are identified as the most prominent; the lack of incentives for consumer behaviour change and lack of stakeholder collaboration were the most cited barriers among the literature records. From a value chain perspective, most of the barriers are related to the material processing and product manufacturing stage. Finally, potential solutions, extracted from the grey literature, are proposed to fill the gaps and overcome the identified barriers. Many of the identified barriers are common across the four investigated sectors, indicating the solutions or measures can be applicable in a wider perspective to promote the transition in the right direction.
AbstractMicroplastics (MP) can be detected in all environmental systems. Marine and terrestrial aquatic systems, especially the transported suspended solids, have often been the focus of scientific investigations in the past. Sediments of aquatic river systems, on the other hand, were often ignored due to the time‐consuming sample preparation and analysis procedures. Spectroscopic measurement methods counting particle numbers are hardly suitable as detection methods, because there are plenty of natural particles next to a small number of MP particles. Integral methods, such as thermoanalytical methods are determining the particle mass independently of the inorganic components.In this study, a workflow for sample preparation via density separation and subsequent analysis by thermal extraction desorption‐gas chromatography/mass spectrometry is presented, which leads to representative and homogeneous samples and allows fast and robust MP mass content measurements suitable for routine analysis. Polymers were identified and quantified in all samples. Polyethylene and styrene‐butadiene rubber are the dominant polymers, besides polypropylene and polystyrene. Overall, total polymer masses between 1.18 and 337.0 µg/g could be determined. Highest MP concentrations in riverbed sediment are found in sites characterized by low flow velocities in harbors and reservoirs, while MP concentrations in sandy/gravelly bed sediments with higher flow velocities are small.
Wet-mechanical treatment: Processing of bituminous road construction waste in a jigging machine
(2023)
Jigging machines are used in processing technology in many areas. Examples are the processing of coal, ores, and primary and secondary raw and waste materials. Even small differences in density are offen sufficient for successful sorting. In the work presented here, milled material from road construction waste contaminated with bitumen is to be separated from uncontaminated material. In this way, scarce landfill space could be saved and mineral material be returned to the material cycle.
LIBS‐ConSort: Development of a sensor‐based sorting method for construction and demolition waste
(2023)
AbstractA joint project of partners from industry and research institutions approaches the challenge of construction and demolition waste (CDW) sorting by investigating and testing the combination of laser‐induced breakdown spectroscopy (LIBS) with near‐infrared (NIR) spectroscopy and visual imaging. Joint processing of information (data fusion) is expected to significantly improve the sorting quality of various materials like concrete, main masonry building materials, organic components, etc., and may enable the detection and separation of impurities such as SO3‐cotaining building materials (gypsum, aerated concrete, etc.)Focusing on Berlin as an example, the entire value chain will be analyzed to minimize economic / technological barriers and obstacles at the cluster level and to sustainably increase recovery and recycling rates.The objective of this paper is to present current progress and results of the test stand development combining LIBS with NIR spectroscopy and visual imaging. In the future, this laboratory prototype will serve as a fully automated measurement setup to allow real‐time classification of CDW on a conveyor belt.
High polarity analyte(s) in aqueous media: determination of L-PFOA and L-PFOS in ground water
(2022)
The CCQM-K156 comparison was coordinated by TUBITAK UME on behalf of the Organic Analysis Working Group (OAWG) of the Comité Consultatif pour la Quantité de Matière (CCQM) for National Measurement Institutes (NMIs) and Designated Institutes (DIs) which provide measurement services in organic analysis under the 'Comité International des Poids et Mesures' Mutual Recognition Arrangement (CIPM MRA).
Perfluoro alkyl substances (PFAS) such as PFOS and PFOA have been used in numerous industrial applications and products. Because of their high stability and resistance to biodegradation, atmospheric photooxidation, direct photolysis and hydrolysis, they are extremely persistent in the environment. The European Union (EU) Water Framework Directive lists PFOS as a priority hazardous substance that poses a significant risk to the aquatic environment. The use of PFOS-containing Aqueous Film-Forming Foams (AFFFs) has been banned since June 2011 in the EU. As relatively water-soluble, effectively non-degradable compounds, PFOS and PFOA migrate to ground water. They are not removed in the conventional drinking water treatment, and therefore cause health risks in polluted areas. The EU Drinking Water Directive and the European Commission has proposed a limit value of 100 ng/L for the sum of 20 PFAS, including PFOS and PFOA.
This study provides the means for assessing measurement capabilities for determination of high polarity measurands in a procedure that requires extraction, clean-up, analytical separation and detection. Successful participation in CCQM-K156 demonstrates measurement capabilities in determining mass fraction of organic compounds, with a molecular mass of 200 g/mol to 700 g/mol, having high polarity pKow -2, in a mass fraction range from 0.5 ng/kg to 500 ng/kg in aqueous media.
Nine NMIs and DIs participated in the CCQM-K156 key comparison. Seven institutes reported their results. SPE was applied in the sample pre-treatment and LC-MS was applied for detection. All participating laboratories applied isotope dilution mass spectrometry (IDMS) techniques for quantification. Participants established the metrological traceability of their results using certified reference materials (CRMs) from NMIs with stated traceability; where commercially available high purity materials were used the purity was determined in-house. The CCQM-K156 results for L-PFOA and L-PFOS range from 2.75 ng/kg to 5.50 ng/kg with a % RSD of 19.5 % for L-PFOA and from 2.04 ng/kg to 4.45 ng/kg with a % RSD of 21.3 % for L-PFOS. The KCRV was assigned using a Hierarchical Bayesian Random Effects Model (HB REM) estimator from the values reported by six of the participants. One participant result of L-PFOS and one result of L-PFOA were excluded from the KCRV for technical reasons. The KCRV was 4.9 ng/kg ± 0.4 ng/kg for L-PFOA and 3.8 ng/kg ± 0.4 ng/kg for L-PFOS. The six institutes that were included in the assignment of consensus KCRV all agreed within their standard uncertainties.
To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database https://www.bipm.org/kcdb/.
The final report has been peer-reviewed and approved for publication by the CCQM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).
Kaltwasserzirkulationssysteme haben sich in diversen Bereichen (Kliniken, Hotels, Schiffsbau usw.) etabliert. Die hydraulische Funktionsweise und das Berechnungsverfahren orientieren sich an der bewährten Warmwasser-Zirkulation, dennoch besteht für dieses „neue System“ eine gewisse Einführungsskepsis. Die elementare Anforderung der Trinkwasserverordnung (TrinkwV) besteht darin, dass „Trinkwasser […] so beschaffen sein [muss], dass durch Genuss oder Gebrauch eine Schädigung der menschlichen Gesundheit […] nicht zu besorgen ist.“ Diese Anforderung gilt als erfüllt, wenn mindestens die allgemein anerkannten Regeln der Technik (a.a.R.d.T.) bei Planung, Bau und Betrieb einer Trinkwasser-Installation eingehalten werden, das Trinkwasser den mikrobiologischen, chemischen, radiologischen Anforderungen der TrinkwV entspricht und es rein und genusstauglich ist. Da die Kaltwasserzirkulation aktuell noch dem Stand der Technik zuzuschreiben ist und die Einhaltung chemischer Anforderungen in Bezug auf erhöhte Schwermetallmigration in der Diskussion steht, wurden entsprechende chemische Parameter in Bestandsanlagen untersucht. Die Ergebnisse werden nachfolgend vorgestellt und sollen Betreibern, Fachplanern und ausführenden Fachunternehmen die Vorteile des Systems aufzeigen und Unsicherheiten ausräumen.
Une transition mondiale vers des systèmes énergétiques plus durables, abordables et fiables a été initiée par l’accord de Paris et l’Agenda 2030 des Nations unies pour un développement durable. Il s’agit là d’un défi industriel majeur car les systèmes et infrastructures énergétiques résilients au changement climatique exigent de se positionner pour le long terme. Se pencher sur le comportement dans la durée des matériaux structurels - principalement des métaux et des alliages - s’impose alors comme une nécessité. Dans cette optique, « La corrosion : un défi pour une société durable »présente une série de cas montrant l’importance de la tenue à la corrosion et de la protection anticorrosion des métaux et des alliages pour le développement de systèmes durables, économiques et fiables de production d’énergie.