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Mostrando ítems 91-100 de 229
Artículo
Tratamiento físico-químico de las aguas ácidas vertidas tras la rotura de la balsa minera de Aznalcollar (Sevilla)
(Reed Business Information, 1999)
En este trabajo se presentan los resultados experimentales de Ios ensayos de tratamiento fisicoquímico llevados a cabo en el Grupo de Tratamiento de Aguas Residuales de la Universidad de Sevilla, con el agua vertida tras ...
Artículo
Converting CO2 from Biogas and MgCl2 Residues into Valuable Magnesium Carbonate: a Novel Strategy for Renewable Energy Production
(Elsevier, 2019-08)
In this work a novel strategy for bio-methane production and magnesium chloride waste valorization is addressed. The proposed process is a potential alternative path to the already existing biogas upgrading technologies ...
Artículo
Support material selection for anaerobic fluidized bed reactors by phospholipid analysis
(Elsevier, 2005)
Many different types of support materials are used in anaerobic fluidized bed in order to obtain high levels of biomass in the reactors. A material is usually considered the most suitable in terms of physical-chemical ...
Artículo
Determination of Polyethylene Glycols in Water by Reversed-Phase High-Performance Liquid Chromatography
(Elsevier, 1996)
This paper describes an RP-HPLC method to characterize the ozonation products of polyethylene glycols (PEGs) (general formula HO(CH 2CH 2O) n -H) with original mass 5000. Samples with different pH and ozonation times were ...
Artículo
Balance and saving of GHG emissions in thermochemical biorefineries
(Elsevier, 2015-06-22)
In this study, a simplified methodology for the calculation of the balance of greenhouse gas (GHG) emissions and corresponding saving compared with the fossil reference is presented. The proposed methodology allows the ...
Artículo
Experimental study of a noise reducing barrier made of fly ash
(CSIC Consejo Superior de Investigaciones Científicas, 2021)
Although fly ash is commonly used as an additive to cement, large amounts of this material are disposed in landfills. To mitigate, it would be interesting to develop new products in which fly ash can be easily used and ...
Artículo
Coal Combustion and Gasification Products
(University Kentucky, 2010)
The valorization of a coal gasification fly ash was studied by leaching the fly ash using different aqueous solutions followed by the subsequent precipitation of the germanium solubilized from the ash. Experimental ...
Artículo
Ethanol conversion into 1,3-butadiene over a mixed Hf-Zn catalyst: Effect of reaction conditions and water content in ethanol
(Elsevier, 2019-10)
Assessment of catalyst performance is necessary for process design in order to evaluate the effect of reaction conditions on process economics and configuration. In this work, the combined effect of reaction conditions and ...
Artículo
Novel Study for Energy Recovery from the Cooling–Solidification Stage of Synthetic Slag Manufacturing: Estimation of the Potential Energy Recovery
(MDPI, 2020-12-02)
Herein, a novel method for energy recovery from molten synthetic slags is analyzed. In this work, the potential energy that could be recovered from the production of synthetic slag is estimated by means of an integrated ...
Artículo
The Incorporation of Ladle Furnace Slag in Fire Insulating Gypsum-Based Materials
(MDPI, 2023-10)
Ladle slag, a byproduct of steel manufacturing, exhibits inherent reactivity and undergoes hydration when exposed to water. Nevertheless, these reaction byproducts often remain metastable, leading to microstructural ...