Anzeige der Dokumente 1-20 von 21
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Adapting the use of Fe3O4 nanoparticles in large-scale water treatment facilities
(2014)Magnetite nanoparticles were produced by the chemical co-precipitation of iron sulfates at alkaline conditions and were tested as a Cr(VI) adsorbent from water. Batch adsorption experiments showed a high removal efficiency, ... -
Adsorption and oxidation of methanol and ethanol on the surface of metallic and ceramic catalysts
(2003)A short review of results obtained in latest infrared and Raman studies, with special reference to in situ measurements and first-principles quantum-mechanical investigations of adsorption and oxidation of alcohol molecules ... -
Almond and walnut shell-derived biochars affect sorption-desorption, fractionation, and release of phosphorus in two different soils
(2020)Effective soil phosphorus (P) management requires higher level of knowledge concerning its sorption-desorption, fractionation, and release, as well as its interactions with soil amendments including biochar (BC). The purpose ... -
Application of surfactant-modified zeolite-activated carbons as adsorbents to a semi-batch operation
(2018)Modified zeolite-activated carbons (H-CL-CB1, H-CL-CB2) in a proportion of 50/50 w/w and 20/80 w/w were used for methylene blue removal from aqueous solutions under a semi-batch operation. Dye adsorption kinetic analysis ... -
Biodegradation of anthelmintics in soils: does prior exposure of soils to anthelmintics accelerate their dissipation?
(2022)Anthelmintics (AHs) control animal infections with gastrointestinal nematodes. They reach soil through animal faeces deposited on soils or through manuring. Although soil constitutes a major AH sink, we know little about ... -
Degradation and Adsorption of Pesticides in Compost-Based Biomixtures as Potential Substrates for Biobeds in Southern Europe
(2010)Biobeds have been used in northern Europe for minimizing point source contamination of water resources by pesticides. However, little is known regarding their use in southern Europe where edaphoclimatic conditions and ... -
Degradation and adsorption of terbuthylazine and chlorpyrifos in biobed biomixtures from composted cotton crop residues
(2010)BACKGROUND: Biobeds have been well studied in northern Europe, whereas little is known regarding their use in southern Europe. The degradation and adsorption of terbuthylazine (TA) and chlorpyrifos (CP) were studied in ... -
Dissipation and adsorption of isoproturon, tebuconazole, chlorpyrifos and their main transformation products under laboratory and field conditions
(2016)Assessment of dissipation constitutes an integral part of pesticides risk assessment since it provides an estimate of the level and the duration of exposure of the terrestrial ecosystem to pesticides. Within the frame of ... -
Environmental geochemical research for the levels and the sources of toxic metals in the agricultural soils of dimitraeleftherion and platycampos region, Thessaly, Greece
(2007)The contents of eleven elements (Cu, Pb, Zn, Ni, Co, Mn, Fe, As, V, Cr and Mg) have been assayed in the agricultural soils of Dimitra-Eleftherion and Platycampos region (Thessaly, Greece). One hundred twenty two top soil ... -
Expanding the use of biobeds: Degradation and adsorption of pesticides contained in effluents from seed-coating, bulb disinfestation and fruit-packaging activities
(2019)Agro-food industries that use pesticides constitute significant point sources for the contamination of natural water resources. Despite that, little is known about the treatment of their pesticide-contaminated effluents. ... -
Experimental and modeling study on zeolite catalysts for diesel engines
(2001)The work presented in this paper was aimed at detecting, understanding and modeling some critical behavior aspects of zeolite-containing diesel catalysts. An already available mathematical model for precious metal catalysts ... -
Geo- and nano-materials affect the mono-metal and competitive sorption of Cd, Cu, Ni, and Zn in a sewage sludge-treated alkaline soil
(2019)We evaluated the effect of geomaterials (modified zeolite and bentonite using CaCl2) and nanoparticles (ZnO and MgO) on the mono-metal and competitive sorption of cadmium (Cd), copper (Cu), nickel (Ni), and zinc (Zn) in ... -
Geochemical modeling of mercury in coastal groundwater
(2022)The systematic analysis of groundwater in the Greek island of Skiathos revealed a seasonal increase of total mercury concentrations after the extensive groundwater abstraction during the busy and heavily touristic summer ... -
Host proteases as determinants of coronaviral neurotropism and virulence
(2020)[No abstract available] -
Influence of soil physicochemical and biological properties on the degradation and adsorption of the nematicide fosthiazate
(2006)The degradation and adsorption of the organophosphorus nematicide fosthiazate were investigated in nine soils with various physicochemical and biological characteristics. Fosthiazate was more persistent in acidic soils (pH ... -
Integrated management of hydroponic wastewater for complete water recycle and cyanobacteria cultivation using an electric conductivity-based tool
(2022)This work presents an integrated management process for hydroponic wastewater (HWW) reuse, by developing an electric conductivity-based tool that calculates recycled nutrient solutions' enrichment requirements and indicates ... -
Penetration of different liquids in wood-based composites: The effect of adsorption energy
(2021)The penetration properties of three different liquids on the surface of medium-density fiberboard (MDF) and particleboard panels were studied. Water, as a polar liquid, was compared to two other less polar liquids (namely, ... -
Performance optimization of a solar adsorption chiller by dynamically adjusting the half-cycle time
(2021)The half-cycle time effect on the performance of a solar single-stage dual-bed adsorption chiller, in Athens, Greece, in July, is investigated. The adsorption chiller coupled with the solar system is simulated, in real ... -
Rapid small-scale column tests for Cr(VI) removal by granular magnetite
(2016)This study evaluates the possibility of using magnetite as an adsorbent for the removal of Cr(VI) in a bed column setup under continuous flow conditions. For this purpose, granular magnetite was synthesized on a large scale ... -
Remediation of Polluted with Chromium Waters and Soils Cultivated with Wheat (Triticum durum) Using Zeolites Modified with Iron Oxide
(2016)The present study examines the efficiency of soil amendments regarding the retention of chromate ions, from water and cultivated soil with wheat (Triticum durum). The minerals and iron oxides that have been used were ...