A5044412254- Recycling and utilization of industrial and municipal waste in materials production
- Coal and Its By-products
- Concrete and Cement Materials Research
- Landfill Environmental Impact Studies
- Nuclear materials and radiation effects
- Recycling and Waste Management Techniques
- Recycled Aggregate Concrete Performance
- Municipal Solid Waste Management
- Metal Extraction and Bioleaching
- Extraction and Separation Processes
- Geochemistry and Geologic Mapping
- Nuclear and radioactivity studies
- Lignin and Wood Chemistry
- Groundwater flow and contamination studies
- Graphite, nuclear technology, radiation studies
- Biofuel production and bioconversion
- Heavy metals in environment
- Radioactive element chemistry and processing
- Glass properties and applications
- Catalysis for Biomass Conversion
- Mine drainage and remediation techniques
- Analytical chemistry methods development
- Geological Modeling and Analysis
- Water Quality Monitoring and Analysis
- Enzyme-mediated dye degradation
Netherlands Organisation for Applied Scientific Research
2022-2024
Energy Research Centre of the Netherlands
2012-2021
Nuclear Research and Consultancy Group
2021
University of Trento
2019
University of Algarve
2009
Quality Research
2008
Wageningen University & Research
2008
Almost 500 municipal solid waste incineration plants in the EU, Norway and Switzerland generate about 17.6 Mt/a of incinerator bottom ash (IBA). IBA contains minerals metals. Metals are mostly separated sold to scrap market either disposed landfills or utilised construction sector. Since there is no uniform regulation for utilisation at EU level, countries developed own rules with varying requirements utilisation. As a result from cooperation network between European experts an up-to-date...
Although humic substances (HS) strongly facilitate the transport of metals and hydrophobic organic contaminants in environmental systems, their measurement is hampered by time-consuming nature currently available methods for isolation purification. We present apply a new rapid batch method to measure (HA) fulvic (FA) acid concentrations dissolution properties both solid aqueous samples. The compared with conventional procedures shown substantially HS concentration measurements, particularly...
Recently a dilute nitric acid extraction (0.43 M) was adopted by ISO (ISO-17586:2016) as standard for of geochemically reactive elements in soil and like materials. Here we evaluate the performance this wide range mechanistic geochemical modeling. Model predictions indicate that recovers concentration quantitatively (>90%). However, at low ratios element to surfaces underestimates Cu, Cr, As, Mo, is, with particularly high affinity organic matter or oxides. The 0.43 M HNO3 together more...
This study evaluated the mechanical and environmental properties of cement mortars containing fly ash from biomass combustion as a secondary cementitious material. Cement with 20 40% wt. replacement Portland two types installations were tested for their compressive strength leaching behaviour. Substitution 20% wood complied reference standard 42.5öMPa at 28ödays. Replacement rates developed lower (30 33.5öMPa), but still suitable applications. The pulverized fuel perform substantially worse....
Insight in the molecular structure of humic acid (HA) and fulvic (FA) can contribute to identify relationships between their properties, further our quantitative abilities model important organic matter functions such as metal complexation association with mineral surfaces. Pyrolysis gas chromatography/mass spectrometry (Py-GC-MS) is used compare composition HA FA. A systematic comparison was obtained by using samples from different environmental sources, including solid aqueous both natural...
The leaching of heavy metals, such as copper, from municipal solid waste incinerator (MSWI) bottom ash is a concern in many countries and may inhibit the beneficial reuse this secondary material. enhanced copper three MSWI samples by dissolved organic carbon (DOC) was investigated with specific attention for nature ligands. A competitive ligand exchange−solvent extraction (CLE-SE) method used to measure Cu binding DOC. Two types sites were identified geochemical modeling showed that...
Acetone organosolv fractionation of beech and birch wood at the lab-scale results in high sugar yields from (hemi)cellulose isolation a high-purity lignin. In this study, process is scaled up to validate technology pilot scale using industrial-size chips low liquid-to-solid ratios as next step toward commercialization. Translation pilot-scale showed similar performance compared processing with good conversion polymeric pentoses mostly monomeric sugars delignification. Continuous lignin...
The complexation of Cu with dissolved organic carbon (DOC) in leachates from fresh and 1.5-year old municipal solid waste incinerator (MSWI) bottom ash was studied using a competitive ligand-exchange solvent extraction procedure. At least two different ligands appear to be involved the copper DOC. appears 95−100% organically bound both weathered ash, geochemical modeling indicates that leaching these ashes is primarily controlled by availability ash. mechanism binds phase likely tenorite...
The pH-dependent availability and leaching of major trace elements was investigated for a wide range biomass ash from different fuels conversion technologies. A technical environmental assessment selected application in soil or cement mortars performed, using both the total content elements. large variation composition, yet consistent pH dependent patterns were observed most Chromium showed distinct behaviour which hypothesized to reflect redox conditions during biomass. based approach found...
Feedstock flexibility is highly advantageous for the viability of (solvent-based) biorefineries but comes with considerable challenge having to cope varying nature and typically high abundance nonlignocellulose compounds in most readily available residual biomass streams. Here, we demonstrate that mild aqueous acetone organosolv fractionation various complex lignocellulosic raw materials (roadside grass, wheat straw, birch branches, almond shells, a mixed stream thereof) indeed negatively...
The effect of accelerated aging Municipal Solid Waste Incinerator (MSWI) bottom ash on the leaching Cu and Mo was studied using a "multisurface" modeling approach, based surface complexation to iron/aluminum (hydr)oxides, mineral dissolution/precipitation, metal by humic substances. A novel experimental method allowed us identify that solid/liquid partitioning fulvic acids (FA) quantitatively explains observed beneficial Cu. Our results suggest (hydr)oxides are major reactive surfaces retain...
Aqueous acetone organosolv fractionation of the lignocellulosic biomass using a batchwise operation is robust technology option to produce cellulose, sugars, and lignin. Such typically characterized by fast solubilization most lignin hemicellulose sugars in early stages process, gradually followed slower removal remaining, more recalcitrant part at later stages. As result, solubilized experience relatively long residence time hot liquor, leading undesired sugar degradation...
Although many countries are increasing their efforts to recycle and re-use waste materials, landfilling will still be needed in order dispose of wastes which cannot recycled or treated other ways. Since landfills most probably present for a long time, measures have taken reduce (long-term) emissions. The European Commission has delegated the competent authorities decide end aftercare several member states provided regulations this purpose. However, there is currently no guidance long-term...
The Waste Framework Directive (WFD) 2008/98/EC includes the option to set so-called end-ofwaste (EoW) criteria under which specified waste fractions shall cease be waste. If these are fulfilled, material will no longer classified as a but it instead become product subject free trade and use (albeit for specific purposes). In accordance with Article 6 (1) of WFD, (substance or object) may defined in WFD when has undergone recovery, including recycling, operation is commonly used purposes,...
In this study, possible leaching control mechanisms for Cr and V in electric arc furnace slags were investigated by using a multi-methodological approach. Aside from chemical mineralogical bulk analyses, special emphasis was given to surface investigations of the prior after leaching. addition, pH dependence tests performed obtained data evaluated with hydrogeochemical models. Investigations revealed that are mainly bound spinel wuestite as well minor amounts olivine. Spinel do not dissolve...