Search Results - "Evangelou, V. P."

Composition and metal ion complexation behavour of humic fractions derived from corn tissue by Evangelou, V. P., Marsi, M.

“…Decomposition of fresh plant residues produces humic fractions with different molecular size and composition. It was hypothesized that the functional…”
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Influence of ionic strength on sodium-calcium exchange of two temperate climate soils by Evangelou, V. P., Marsi, M.

“…Salt-affected soils have been studied extensively with respect to their Na–Ca exchange properties. These studies have focused on soil environments of the arid…”
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Cosorption of Atrazine and a Lauryl Polyoxyethylene Oxide Nonionic Surfactant on Smectite by Chappell, Mark A, Laird, David A, Thompson, Michael L, Evangelou, V. P

“…Commercial atrazine formulations commonly contain nonionic surfactants that serve as solubilizing and wetting agents for enhancing the stability and efficacy…”
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Ammonium–Potassium–Calcium Exchange on Vermiculite and Hydroxy‐aluminum Vermiculite by Evangelou, V. P., Lumbanraja, J.

“…Binary and ternary cation‐exchange reactions involving NH+4, K+, and Ca2+ on vermiculite and hydroxy‐Al interlayered vermiculite (HIV) were investigated. In…”
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Potential Role of Bicarbonate during Pyrite Oxidation by Evangelou, V. P, Seta, A. K, Holt, A

“…According to Frontier molecular orbital (FMO) theory, the surface-exposed sulfur atom of pyrite possesses an unshared electron pair which produces a slightly…”
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Stability of Ca²⁺–, Cd²⁺–, Cu²⁺–[illite-humic] complexes and pH influence by Evangelou, V. P., Marsi, M., Vandiviere, M. M.

“…Decomposition of fresh plant residues in soil is expected to produce humic fractions varying in molecular size. It was hypothesized that metal adsorption by…”
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Formation of ferric hydroxide-silica coatings on pyrite and its oxidation behavior by Zhang, Y.L. (University of Kentucky, Lexington, KY.), Evangelou, V.P

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Potentiometric–spectroscopic evaluation of metal-ion complexes by humic fractions extracted from corn tissue by Evangelou, V.P., Marsi, M., Chappell, M.A.

“…Humic fraction (HF) functional group-type and content are expected to depend on molecular size, which in turn, is expected to influence formation of…”
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Ammonium-potassium-calcium exchange on vermiculite and hydroxy-aluminum vermiculite by EVANGELOU, V. P, LUMBANRAJA, J

“…Binary and ternary cation-exchange reactions involving NH+, K+, and CA2+ on vermiculite and hydroxy-A1 interlayered vermiculite was nearly indistinguishable…”
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Influence of added K+ on ammonium selectivity/mobility by soils with vermiculitic behavior by CHAPPELL, M. A, EVANGELOU, V. P

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Optimal solid-to-solution ratios for organic chemical sorption experiments by McDonald, L.M. Jr, Evangelou, V.P

“…The presence of organic chemicals in natural systems requires an understanding of how these chemicals distribute themselves between the different phases of the…”
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Surface exchange phase composition and nonionic surfactant effects on the nonequilibrium transport of atrazine by PRIMA, S, EVANGELOU, V. P, MCDONALD, L. M

“…Numerous studies have been reported regarding atrazine (2-chloro-4-isopropyl-6 ethyl-diamino-triazine) sorption/desorption and mobility in soil using the pure…”
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Influence of iron oxide forming conditions on pyrite oxidation by Zhang, Y.L. (Univ. of Kentucky, Lexington, KY.), Evangelou, V.P

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STABILITY OF Ca2+-, Cd2+-, AND Cu2+-ILLITE COMPLEXES by Evangelou, V. P., Marsi, M.

“…In this study, using ion selective electrode techniques, we investigated the influence of pH on metal-ion, Ca 2+ , Cd 2+ , and Cu 2+ , adsorption by Fithian…”
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Pyrite microencapsulation technologies: Principles and potential field application by Evangelou, V.P.

“…In nature, pyrite is initially oxidized by atmospheric O 2, releasing acidity and Fe 2+. At pH below 3.5, Fe 2+ is rapidly oxidized by T. ferrooxidans to Fe…”
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Comparative testing between conventional and microencapsulation approaches in controlling pyrite oxidation by Vandiviere, M.M., Evangelou, V.P.

“…Oxidation of pyrite in mining waste or overburden is the main source of acid mine drainage (AMD) production, which causes major environmental pollution…”
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Mixed soil/clinoptilolite quantity/intensity behavior in binary and ternary K-NH4-CA exchange systems by TSADILAS, C. D, EVANGELOU, V. P

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Potassium-ammonium-calcium quantity/intensity studies in the binary and ternary modes in two soils of micaceous mineralogy of northern Greece by Barbayiannis, N. (Aristotelian University, Thessaloniki, Greece.), Evangelou, V.P, Keramidas, V.C

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The potential role of sediment mineralogy in regulating aluminum concentrations in lakewater by MCDONALD, L. M, EVANGELOU, V. P, BERTSCH, P. M

“…An understanding of the controls on aluminum solubility is essential because Al can reach toxic levels in waters that are affected by acidic precipitation or…”
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Effect of long-term tillage systems and nitrogen addition on potassium quantity-intensity relationships by Evangelou, V.P, Blevins, R.L

“…The no-tillage (NT) management of soils is expected to have an influence on the K+ adsorption characteristics of these soils due to organic matter…”
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