Search Results - "Elie Valcke"

Ex and In Situ Reactivity and Sorption of Selenium in Opalinus Clay in the Presence of a Selenium Reducing Microbial Community by Nele Bleyen, Joe S. Small, Kristel Mijnendonckx, Katrien Hendrix, Achim Albrecht, Pierre De Cannière, Maryna Surkova, Charles Wittebroodt, Elie Valcke

“…79Se is a critical radionuclide concerning the safety of deep geological disposal of certain radioactive wastes in clay-rich formations. To study the fate of…”
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Sodium azide used as microbial inhibitor caused unwanted by-products in anaerobic geochemical studies by Hendrix, Katrien, Bleyen, Nele, Mennecart, Thierry, Bruggeman, Christophe, Valcke, Elie

“…Sodium azide, applied as microbial inhibitor, has caused unwanted by-products in environmental samples during anaerobic, long-term (2–3 year) experiments. When…”
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Understanding hydration heat of mortars containing supplementary cementitious materials with potential to immobilize heavy metal containing waste by Phung, Quoc Tri, Ferreira, Eduardo, Seetharam, Suresh, Nguyen, Van Tuan, Govaerts, Joan, Valcke, Elie

“…Supplementary cementitious materials (SCMs) have been widely used not only in civil engineering concrete components, but also in (nuclear) waste treatment…”
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Pyrite oxidation by nitrate and nitrite in sodium bicarbonate solution under anoxic and abiotic conditions by Hendrix, Katrien, Bleyen, Nele, Mennecart, Thierry, Eloy, Pierre, Gaigneaux, Eric M., Valcke, Elie

“…Pyrite reactivity with nitrate and nitrite was assessed in long-term batch tests to assess its possible oxidation in anoxic conditions at pH 8.5, at room…”
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Radiolytic degradation of cellulosic materials in nuclear waste: Effect of oxygen and absorbed dose by Bleyen, Nele, Van Gompel, Veerle, Smets, Steven, Eyley, Samuel, Verwimp, Wim, Thielemans, Wim, Valcke, Elie

“…Lignocellulosic materials can be found in a significant fraction of the current low- and intermediate-level radioactive waste. During storage and disposal,…”
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Surface-mediated redox activity in the Pyrite – Nitrate/nitrite – Hydrogen system under conditions relevant for the geological disposal of bituminized waste in Boom Clay by Hendrix, Katrien, Bleyen, Nele, Mennecart, Thierry, Gaigneaux, Eric M., Eloy, Pierre, Valcke, Elie

“…The reactivity of a system with pyrite powder, nitrate or nitrite, and hydrogen in a 15 mM sodium bicarbonate solution was assessed over the course of 2 years…”
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In situ testing of the chemical durability of vitrified high-level waste in a Boom Clay formation in Belgium: discussion of recent data and concept of a new test by Van Iseghem, Pierre, Valcke, Elie, Lodding, Alexander

“…SCK·CEN has been conducting in situ experimental programmes on candidate high-level waste (HLW) glasses, as part of a global approach to evaluate the long-term…”
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Water uptake-induced pressure development by French bituminized radioactive waste products in nearly constant volume conditions by Champenois, Jean-Baptiste, Poulesquen, Arnaud, Lautru, Joseph, Bleyen, Nele, Smets, Steven, Verwimp, Leo, van Gompel, Marc, Valcke, Elie, Leclerc, Arnaud

“…In this paper, the water uptake and leaching behavior of two simulated French Bituminized Waste Products (BWP) has been investigated in nearly constant volume…”
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Non-destructive on-line and long-term monitoring of in situ nitrate and nitrite reactivity in a clay environment at increasing turbidity by Bleyen, N., Albrecht, A., De Cannière, P., Wittebroodt, C., Valcke, E.

“…Reliable, on-line and high frequency data are essential for increasing our knowledge regarding nitrate (and nitrite) reactivity in a clay formation surrounding…”
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Impact of the electron donor on in situ microbial nitrate reduction in Opalinus Clay: results from the Mont Terri rock laboratory (Switzerland) by Bleyen, Nele, Smets, Steven, Small, Joe, Moors, Hugo, Leys, Natalie, Albrecht, Achim, De Cannière, Pierre, Schwyn, Bernhard, Wittebroodt, Charles, Valcke, Elie

“…At the Mont Terri rock laboratory (Switzerland), an in situ experiment is being carried out to examine the fate of nitrate leaching from nitrate-containing…”
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Deformation of bitumen based porous material: Experimental and numerical analysis by Mokni, Nadia, Olivella, Sebastià, Li, Xiangling, Smets, Steven, Valcke, Elie, Mariën, An

“…This paper presents a theoretical and experimental work aiming at understanding the mechanical behaviour of Bituminized Waste Product (BWP). This material is…”
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Deformation induced by dissolution of salts in porous media by Mokni, Nadia, Olivella, Sebastià, Li, Xiangling, Smets, Steven, Valcke, Elie

“…This paper presents a theoretical work aiming at studying the behaviour of porous material containing salts. A constitutive model including creep is adopted in…”
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