Πλοήγηση ανά Θέμα "Engineering, Environmental"
Αποτελέσματα 1-20 από 41
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Adsorption of methylene blue and methyl red dyes from aqueous solutions onto modified zeolites
(2013)Zeolite, hematite, modified zeolite and commercial activated charcoal were examined for their ability to remove methylene blue (MB) and methyl red (MR) from their aqueous solutions. Modified zeolite and hematite were ... -
Assessing the performance of urban water networks across the EU Mediterranean area: The paradox of high NRW levels and absence of respective reduction measures
(2013)The aim of this paper is to assess the performance level of water distribution systems (WDS) in six areas located in four Mediterranean countries, and evaluate their common characteristics. The second modification of the ... -
An assessment of water quality in a coastal embayment (Phaleron bay, Greece)
(1995)Athens basin drains by gravity to the coast into the Phaleron Bay by the Kifissos river. The Phaleron coast is currently undergoing extensive remodelling and is scheduled for development as a major amenity and recreational ... -
Bioavailability and toxicity of heavy metals in the presence of natural organic matter
(2006)The effect of humic acids (HA) on the toxicity of copper, zinc and lead was investigated in this study, using the photobacterium Vibrio fischeri (Microtox test) as a test organism. The metal species and the complexation ... -
Carbon-supported PdSn and Pd3Sn2 anodes for glucose electrooxidation in alkaline media
(2014)PdSn (20 wt.%) and Pd3Sn2 (20 wt.%) nanoparticles supported on Vulcan XC-72 carbon powders are prepared by a modified microwave-assisted polyol method and studied for the reaction of glucose electrooxidation in alkaline ... -
Catalytic and electrocatalytic oxidation of carbon monoxide on a Fe electrode in a solid electrolyte cell
(2003)The catalytic oxidation of carbon monoxide on Fe catalyst was studied at 300-500degreesC and atmospheric total pressure. The reaction was studied under both open- and closed-circuit operation in an yttria-stabilized zirconia ... -
Ceria promoted Pd/C catalysts for glucose electrooxidation in alkaline media
(2015)Carbon support materials are modified by CeO2 through a microwave decomposition method, and then CeO2-C supported Pd catalysts are synthesized by a pulse microwave assisted polyol method. The content of CeO2 is appropriately ... -
Cu-Zn powders as potential Cr(VI) adsorbents for drinking water
(2013)This work examines the possibility of applying CuZn alloys as a reducing medium for the efficient removal of hexavalent chromium from drinking water. In an effort to develop a route for producing powders of CuZn alloys ... -
Decolorization kinetics of Procion H-exl dyes from textile dyeing using Fenton-like reactions
(2006)The decolorization kinetics of three commercially used Procion H-exl dyes was studied using a Fenton-like reagent. The effect of the major system parameters (pH, concentration of H2O2 and Fe3+ and initial dye concentration) ... -
Degradation products of the process of thermal recovery of copper from lamina scraps in lab-scale fluidized bed reactor
(2004)This paper presents experimental results dealing with a process for recovering copper in the scrap composite materials issued from electronic laminas industry. This environment-friendly process consists in the thermal ... -
Direct ethanol fuel cells: The effect of the cell discharge current on the products distribution
(2010)In the present work the results of the continuous and on-line product analysis during a Direct Ethanol Polymer Electrolyte Membrane Fuel Cell operation (DE-PEMFC) are presented. The effect of both cell discharge current ... -
ECOLOGICAL MONITORING STUDIES, FOR VOLOS SEA OUTFALL (PAGASSITIKOS-GULF, WESTERN AEGEAN SEA)
(1995)Nutrient pollution in Pagassitikos Gulf arises mainly from the disposal of Volos untreated domestic wastewater inside Volos Bay, and also the agricultural run-off from the surrounding the Gulf cultivated areas. Volos Bay's ... -
THE ECOLOGICAL STATE OF THE ELEFSIS BAY PRIOR TO THE OPERATION OF THE ATHENS SEA OUTFALL
(1994)Nutrient pollution in Elefsis Bay arises mainly from the disposal of Athens untreated wastewater at the eastern entrance of the Bay. The absence of river discharge, lack of cultivated agricultural areas providing runoff ... -
Electrocatalytic activity of Vulcan-XC-72 supported Pd, Rh and PdxRhy toward HOR and ORR
(2015)Carbon-supported (Vulcan XC-72) Pd, Rh, and PdxRhy (20 wt%, x:y = 1:1, 3:1, 1:3) electrocatalysts are prepared according a modified pulse-microwave assisted polyol synthesis method and their electrocatalytic activity toward ... -
Evaluation of toxic properties of industrial wastewater using on-line respirometry
(2005)An on-line respirometric biosensor using activated sludge microorganisms was used in this work for the assessment of toxic properties of industrial effluents and for the evaluation of their effect on the performance of a ... -
Excision of an oxidative DNA lesion (8-oxo-deoxyguanosine) in Mytilus edulis populations from two sites in the eastern Irish Sea
(2008)Mussels (Mytilus edulis) from the urban/industrialised site of New Brighton, Merseyside, UK and the reference site of Llandudno, North Wales, UK were collected at various time-points in 2005-2006. The excision capacity of ... -
Finite element modelling to expand the UMCCA model to describe biofilm mechanical behavior
(2005)In order to understand the influence of biofilm's physical and microbiological structures on its mechanical behavior, a finite element model that describes the structural mechanics of a composite solid is linked to the ... -
Glucose electrooxidation over PdxRh/C electrocatalysts in alkaline medium
(2014)Carbon Vulcan XC-72R supported PdxRh (x = 1, 2, 3) nanoparticles have been prepared by a modified pulse microwave assisted polyol method and have been studied for glucose electrooxidation in alkaline media. The PdxRh/C ...