Index Catalog // ScholarsArchive@OSU

A kinetic approach for the determination of sorption rate constants using a column-type reactor

Creator:: Patrier, Lionel
Abstract:: A Langmuir sorption model incorporating a second step of irreversible absorption was applied to a model soil system. The column was packed with cellulose triacetate; pulse and step input tests with 3,4-dichlorophenol were performed; the effluent concentration was measured by electron capture detector gas chromatography and sorption rate constants were...
Resource Type:: Masters Thesis
Full Text:: of reactions including ion exchange, physical adsorption, chemisorption and absorption occurring at

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:: ), Chicago sludge (CSE), and an agricultural peat soil (PE). 47 Appendix B 71 ADSORPTION OF Cu(II) AND Cd

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:: determined by atomic absorption after extraction from soil with 0.2 mol/L ammonium oxalate (pH 3.5), and

Soil column desorption studies on a chromium contaminated soil

Creator:: Ball, Bruce L.
Abstract:: Soil column studies were performed on a chromium contaminated soil from the United Chrome Products Superfund Site currently undergoing a pump-and-treat cleanup process. The goal of the research was to provide insight into the feasibility of chemically changing the injection fluid of the pump-and-treat system to enhance hexavalent chromium (Cr(VI))...
Resource Type:: Masters Thesis
Full Text:: rapidly as soil pH increased. 5 Griffin et al. (1977) found Cr(VI) adsorption by kaolinite and

Laboratory study of chromium sorption and desorption in undisturbed soil

Creator:: Müller, Heike K.
Resource Type:: Masters Thesis
Full Text:: ) and subsequent removal, besides Cr(VI) adsorption, was a major process in soil suspensions. The

A soil property model for evaluating pesticide movement potential

Creator:: Vogue, Margaret A.
Abstract:: Prevention of groundwater contamination by agricultural chemicals requires an understanding of the complex processes that control pesticide movement below the soil surface. Through this understanding it is possible to try to predict which areas may be most vulnerable to contamination. The many models that have been developed to characterize pesticide...
Resource Type:: Masters Thesis
Full Text:: ) water. And finally, adsorption is a function of the pesticide and the soil environment. Of the above

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

Creator:: Vongsuri, Sommai
Resource Type:: Masters Thesis
Full Text:: desirable to investigate soil water ponding and its re- lationship to application rates, initial moisture

Relationship between pore size, particle size, aggregate size and water characteristics

Creator:: Wu, Laosheng
Abstract:: Soil pore size distribution and water characteristics are important for water storage, water movement, and soil-plant interaction studies. Laboratory determinations of water characteristics and pore size distribution are time consuming and costly. Investigators have proposed many models to predict them from routinely available data. Most of the models are related...
Resource Type:: Masters Thesis
Full Text:: China and the Department of Soil Science at Oregon State University for their financial support during

Stability of soil structure for water movement in an aridisol

Creator:: Ali, Safdar
Abstract:: Lack of stability of soil aggregates for water movement is a major problem in arid soils due to low organic matter and higher sodium contents. Soil amendments for improving stability of structure and increasing infiltration of water are essential to solve water management problems in these areas. Different rates of...
Resource Type:: Masters Thesis
Full Text:: movement is a major problem in arid soils due to low organic matter and higher sodium contents. Soil

ScholarsArchive@OSU

A kinetic approach for the determination of sorption rate constants using a column-type reactor

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

Soil column desorption studies on a chromium contaminated soil

Laboratory study of chromium sorption and desorption in undisturbed soil

A soil property model for evaluating pesticide movement potential

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

Relationship between pore size, particle size, aggregate size and water characteristics

Stability of soil structure for water movement in an aridisol

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