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Now showing items 21-30 of 110
Morfología macroscópica de alteración de la piedra de la Catedral de Cádiz/España [Article]
(1990)
Dos son los factores de alteración que han determinado el estado actual de alteración de la Catedral de Cádiz, uno natural y otro antropogénico. Por una parte la presencia de sales, condicionada tanto por el ambiente ...
Fischer-Tropsch biofuels production from syngas obtained by supercritical water reforming of the bio-oil aqueous phase [Article]
(Elsevier, 2017)
A new process to produce low-temperature Fischer-Tropsch products from the syngas obtained by supercritical water reforming technology of the bio-oil aqueous phase is developed and analyzed. The process includes four ...
A Review of the Carbon Footprint of Cu and Zn Production from Primary and Secondary Sources [Article]
(MDPI, 2017-09-13)
Copper (Cu) and zinc (Zn) with their unique properties are central for economic growth, quality of life, and the creation of new jobs. The base-metal producing sector is, however, under growing public pressure in respect ...
Kinetic characterization of solvents for CO2 capture under partial oxy-combustion conditions [Article]
(Elsevier, 2017)
Partial oxy-combustion is proposed as a new carbon capture concept based on the use of oxygen-enriched air as an oxidizer instead of air during the combustion stage followed by a CO2 chemical absorption. This novel approach ...
Accelerated MEA degradation study in hybrid CO2 capture systems [Article]
(Elsevier, 2017)
CO2 capture systems are typically divided into pre- post- and oxyfuel- combustion systems. However, the interest on hybrid systems, which integrate elements of more than one of the above systems, is attracting major ...
Contributions to the study of porosity in fly ash-based geopolymers. Relationship between degree of reaction, porosity and compressive strength [Article]
(Consejo Superior de Investigaciones Científicas (CSIC), 2016)
The main contribution of this paper relates to the development of a systematic study involving a set of parameters which could potentially have an impact on geopolymer properties: curing temperature, type of activating ...
Evaluation of MEA 5M performance at different CO2 concentrations of flue gas tested at a CO2 capture lab-scale plant [Article]
(Elsevier, 2017)
Chemical absorption is the most effective and mature post-combustion alternative that might be applied for carbon capture in fossilfuel power plants and other energy-intensive industries such as cement production, refineries ...
Propuesta de Plan de avenidas para el control de los efectos de vertidos tóxicos accidentales al cauce del río Guadiamar [Article]
(TIASA, 1999)
El 25 de abril del pasado año, la rotura de una balsa de decantación propiedad de la empresa sueca Boliden Apirsa, S. L., situada en la zona minera de Aznalcóllar (Sevilla) y utilizada para el almacenamiento de residuos ...
Eliminación de metales pesados en disolución mediante adsorción en carbón activo y arcillas de intercambio. Ensayos realizados con las aguas ácidas vertidas tras la rotura de la balsa minera de Aznalcóllar (Sevilla) [Article]
(Reed Business Information, 1999)
Among the different treaúnent systems assessed for the purification of the wastewaters poured from Aznacóllar quarry the last April 25, 1998, physical and chemical adsorption proved highly efficient for the removal of ...
Ecologically Designed Sanitary Sewer Based on Constructed WetlandsTechnology – Case Study in Managua (Nicaragua) [Article]
(River Publishers, 2017)
In developed countries the sanitation and treatment of urban wastewater is well sustained and technically solved by means of conventional pipe networksandsubsequentcentralizedtreatments.However,developingcountries lack ...