Cerca
Ara es mostren els items 1-9 de 9
Use of redundant data to reduce estimation errors in geochemical speciation
(2015-04)
Article.
Accés obert
Article.
Accés obert
Speciation is the process of evaluating the concentrations of all the species in a chemical system from equilibrium conditions and measured data such as total concentrations of components, electrical conductivity, pH, redox ...
Sorption of antimony (V) onto synthetic goethite in carbonate medium
(2008-06)
Article.
Accés restringit per política de l'editorial
Article.
Accés restringit per política de l'editorial
The sorption kinetics of antimony(V) on synthetic goethite is very fast compared to the sorption of other metals on goethite (e.g. arsenic and selenium) and depends on temperature, with an activation energy of 49+9 kJ . ...
Feasibility of two low-cost organic substrates for inducing denitrification in artificial recharge ponds: batch and flow-through experiments
(2017-03)
Article.
Accés obert
Article.
Accés obert
Anaerobic batch and flow-through experiments were performed to assess the capacity of two organic substrates to promote denitrification of nitrate-contaminated groundwater within managed artificial recharge systems (MAR) ...
Modeling the hydrogeochemical evolution of brine in saline systems: case study of the Sabkha of Oum El Khialate in South East Tunisia
(2015-04)
Article.
Accés obert
Article.
Accés obert
We studied the effects of evaporation and groundwater flow on the formation of salt minerals in the Sabkha of Oum El Khialate in South East Tunisia, which contains large amounts of sulfate sodium mineral deposits. Due to ...
Coupling of mass transfer and reactive transport for nonlinear reactions in heterogeneous media
(2010-07-01)
Article.
Accés obert
Article.
Accés obert
Fast chemical reactions are driven by mixing‐induced chemical disequilibrium. Mixing is poorly represented by the advection‐dispersion equation. Instead, effective
dynamics models, such as multirate mass transfer (MRMT), ...
Evaluation of two carbon sources for inducing denitrification: batch and column experiments
(Elsevier, 2015-08-21)
Article.
Accés obert
Article.
Accés obert
Artificial recharge improves several water quality parameters. Denitrification is a good example of water treatment process that could be achieved through artificial recharge. To improve the removal of nitrate and other ...
Efficiency of magnesium hydroxide as engineering seal in the geological sequestration of CO2
(John Gale, 2016-05)
Article.
Accés obert
Article.
Accés obert
Injection of CO2 at depth will cause the acidification of groundwater. As a preliminary study for the potential use of MgO as an alternative to Portland cement in injection wells, MgO carbonation has been studied by means ...
Linking biofilm spatial structure to real-time microscopic oxygen decay imaging
(2018-02)
Article.
Accés obert
Article.
Accés obert
Two non-destructive techniques, confocal laser scanning microscopy (CLSM) and planar optode (VisiSens imaging), were combined to relate the fine-scale spatial structure of biofilm components to real-time images of oxygen ...
Interaction between a fractured marl caprock and CO2-rich sulfate solution under supercritical CO2 conditions
(John Gale, 2016-05)
Article.
Accés obert
Article.
Accés obert
Geological CO2 sequestration at pilot-plant scale will be developed at Hontomin (Spain). CO2 will be injected into a limestone reservoir that contains a NaCl- and sulfate-rich groundwater in equilibrium with calcite and ...