Πλοήγηση ανά Θέμα "SORPTION"
Αποτελέσματα 1-12 από 12
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Computer-aided estimation of diffusion coefficients in non-solvent/polymer systems
(2001)Full Paper: A novel method for estimating the mutual and self-diffusion coefficients of a non-solvent/polymer system is proposed in this work. The idea is to stud the evaporation process from non-solvent/solvent/polymer ... -
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 ... -
Hexavalent Chromium Dynamics and Uptake in Manure-Added Soil
(2012)The soil dynamics of hexavalent Cr, a particularly mobile and toxic metal, is of a great environmental concern, and its availability to plants depends on various soil properties including soil organic matter. Thus, in a ... -
Influence of different organic amendments on the degradation, metabolism, and adsorption of terbuthylazine
(2007)The behavior of the herbicide terbuthulazine (TA) was studied in a clay loam soil after the addition of the addition of different organic amendments (OAs). Addition of poultry compost (PC) and urban sewage sludge (USS) ... -
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 ... -
KINETIC-STUDY OF PHOSPHORUS DESORPTION BY ALFISOLS AND ENTISOLS
(1993)The kinetics of phosphorus (P) desorption by six Greek soils, four Alfisols and two Entisols, have been studied. By the addition of several amounts of P fertilizers at different water/soil rations and different contact ... -
On-farm biopurification systems for the depuration of pesticide wastewaters: recent biotechnological advances and future perspectives
(2012)Point source contamination of natural water resources by pesticides constitutes a serious problem and on-farm biopurification systems (BPS) were introduced to resolve it. This paper reviews the processes and parameters ... -
Phosphate Adsorption from Aqueous Solutions onto Goethite, Bentonite, and Bentonite-Goethite System
(2013)The present paper examines the phosphate adsorption from aqueous solutions onto goethite, bentonite, and bentonite-goethite system. The properties of the materials were studied by X-ray diffraction (XRD), attenuated total ... -
The role of SO42- surface distribution in arsenic removal by iron oxy-hydroxides
(2014)This study investigates the contribution of chemisorbed SO42- in improving arsenic removal properties of iron oxy-hydroxides through an ion-exchange mechanism. An analytical methodology was developed for the accurate ... -
Uptake of Zn2+ ions by a fully iron-exchanged clinoptilolite. Case study of heavily contaminated drinking water samples
(2007)Clinoptilolite, a natural zeolite, was used for the synthesis of a high surface area clinoptilolite (Clin)-iron (Fe) oxide system, in order to be used for the removal of Zn2+ ions from drinking water samples. The new system ... -
Use of clinoptilolite and an Fe-overexchanged clinoptilolite in Zn2+ and Mn2+ removal from drinking water
(2008)Clinoptilolite, a natural zeolite, was used for the synthesis of a high surface area clinoptilolite-iron oxide system (Clin-Fe system) to be used for the removal of Mn2+ and Zn2+ ions from drinking water samples. The new ... -
Use of Modified Zeolites for the Remediation of Waters and Cultivated Soils from Cu(II)
(2012)The ability of iron oxides (goethite) and natural zeolite (clinoptilolite) to adsorb copper from its aqueous solutions was extensively studied in the past. In this paper, the production of modified zeolites (systems I and ...