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Atrazine, terbutryn and GS-14254 adsorption, desorption and solubility in salt solutions and movement in soil materials

Creator:: Gaynor, John Donald
Resource Type:: Dissertation
Full Text:: Atrazine, terbutryn and GS-14254 adsorption, desorption

Diffusion and surface reaction processes of absorption on surfaces of soil particles in unsaturated soils

Creator:: Yingjajaval, Suntaree
Abstract:: At present the adsorption kinetic of ions by soil particles is considered to be a surface reaction. When the transport of solutes in soils is described using the one-dimensional flow equation, it becomes a serious problem that lateral diffusion of ions from the bulk solution towards the soil surfaces is...
Resource Type:: Dissertation
Full Text:: AND SURFACE REACTION PROCESSES OF ADSORPTION ON SURFACES OF SOIL PARTICLES IN UNSATURATED SOILS

Infiltration under a rainfall simulator

Creator:: Will, Gregory Leonard
Abstract:: A large rainfall simulator was used to study infiltration on six soil plots. Water content and capillary pressure were measured during steady rainfall at rates less than required to produce runoff. The equipment and procedures used to make these measurements are discussed. Water content and capillary pressure data obtained as...
Resource Type:: Masters Thesis

Adsorption of Cu(II) and Cd(II) by Na-montmorillonite at low surface coverage in the presence and absence of water soluble complexing organic ligands

Creator:: Inskeep, William Parks
Abstract:: The formation of solution and solid complexes with heavy metals will partially determine their mobility and plant availability in soil systems. Experiments were initiated to determine the effect of pH, adsorbent and initial metal concentrations, and the presence of water soluble ligands on the adsorption of Cd and Cu by...
Resource Type:: Masters Thesis
Full Text:: Adsorption of Cu(II) and Cd(II) by Na-montmorillonite at

Fluoride sorption and dissolution reactions in soils

Creator:: Peek, Daniel C.
Abstract:: The reaction of F, often a component of industrial wastes and phosphatic fertilizers, with soil was studied with regard to sorption reactions and resultant changes in solution composition. Sodium fluoride solutions (0.0 to 2.5 mmol/L F) were equilibrated with ten soils for 24h. The soil extract solutions were analyzed for...
Resource Type:: Masters Thesis
Full Text:: been described by the Langmuir adsorption isotherm (Gupta et al., 1982; Chhabra et al., 1980; Hani

Experimental evaluation and chemical modeling of hexavalent chromium adsorption, desorption, and reduction in a natural soil

Creator:: Azizian, Mohammed F.
Abstract:: Chromium and its compounds are widely used by modern industries, resulting in large quantities of this element being discharged into the environment. To remove chromium from contaminated soils and ground water, it is necessary to predict chemical and physical processes that control the rate of reactions and transport of chromium...
Resource Type:: Dissertation

Determination of irrigation frequencies and amounts by soil moisture sampling and gypsum electrical resistance blocks

Creator:: Abd El-Samie, Ahmed Gamal
Resource Type:: Dissertation

Theoretical and experimental evaluation of transfer of 2, 4-dichlorophenoxyacetic acid in porous media

Creator:: Saxena, Subodh Kumar, 1942-
Abstract:: Experiments were conducted to study the effect of pore size distribution on the diffusion of 2, 4-Dichlorophenoxyacetic acid (carbon- 14) through water saturated porous media. Eight size fractions of glass beads were used representing the porous media. It was found that as the average particle radius, and hence pore radius,...
Resource Type:: Dissertation
Full Text:: proposed dispersion models may be used to predict the effects of pore size distribution and adsorption on

Soil water ponding and its relationship to sprinkler application rates, initial moisture contents, and uniformity of storage

Creator:: Vongsuri, Sommai
Resource Type:: Masters Thesis

Adsorption of hexavalent and trivalent chromium to a clayey silt soil : batch kinetic and equilibrium studies

Creator:: Bean, Gregory R.
Abstract:: Chromium, an element of widespread use, is toxic in some forms. Improper disposal of waste chromium products has resulted in contamination of many sites throughout the United States, including the United Chrome Products Superfund site in Corvallis, Oregon. A better understanding of chromium chemistry is needed to facilitate the remediation...
Resource Type:: Masters Thesis
Full Text:: Adsorption of hexavalent and trivalent chromium to a

ScholarsArchive@OSU

Atrazine, terbutryn and GS-14254 adsorption, desorption and solubility in salt solutions and movement in soil materials

Diffusion and surface reaction processes of absorption on surfaces of soil particles in unsaturated soils

Infiltration under a rainfall simulator

Adsorption of Cu(II) and Cd(II) by Na-montmorillonite at low surface coverage in the presence and absence of water soluble complexing organic ligands

Fluoride sorption and dissolution reactions in soils

Experimental evaluation and chemical modeling of hexavalent chromium adsorption, desorption, and reduction in a natural soil

Determination of irrigation frequencies and amounts by soil moisture sampling and gypsum electrical resistance blocks

Theoretical and experimental evaluation of transfer of 2, 4-dichlorophenoxyacetic acid in porous media

Soil water ponding and its relationship to sprinkler application rates, initial moisture contents, and uniformity of storage

Adsorption of hexavalent and trivalent chromium to a clayey silt soil : batch kinetic and equilibrium studies

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