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Now showing items 61-80 of 254
Ferrate ion, FeO42-, as a Cl2 and MnO4- replacement in water purification
(1986)
A method has been devised by which solid samples of K2FeO4 can be stabilized with respect to decomposition through a double-mixed salt with inexpensive K2SO4. This solid solution is stable over a wide range of compositions ...
Evaluation of an on-site sewage disposal system at the Lake of the Ozarks
(1986)
An aeration device - conventional soil disposal field system was monitored for one year in the Lake of the Ozarks area to assess its treatment efficiency and effect on the water quality of the immediate area. The aeration ...
Kinetics of chlorine depletion and microbial growth in household plumbing systems
(1987)
To date, the microbial ecology of water treatment and distribution systems has never been systematically explored. Despite chronic problems with microbial growths in water distribution systems, the waterworks literature ...
Accumulation of mercury by fish and turtles of the Little Piney River
(1974)
The primary objective of this study was to determine whether mercury levels of fish in the Little Piney River have changed substantially in the past 25 years. We have concluded that there has been a definite decline in ...
Organic groundwater contamination evaluation and prediction
(1983)
Adsorption of two organic compounds, Trichloroethylene (TCE) and Pentachlorophenol (PCP), on several Missouri soils were determined. The soils used were of the Coppock, Parsons, Putnam, Grundy and Lebanon series. TCE ...
An analytical method for total heavy metal complexing agents in water and its application to water quality studies
(1973)
The principle research accomplishment on this project was the development of several methods of analysis for low levels of complexing agents, particularly chelating agents. These species are very important in water quality. ...
Interfacial interaction of water and silicate minerals
(1974)
This program has relation to the categories of the nature of water and water cycle. In particular, the study deals with the basic interactions of water with the surface of minerals. The program has direct application to ...
Determination of the rate of tripoly and pyro-phosphate hydrolysis in sediments
(1974)
The rate of hydrolysis of tripolyphosphate (TPP) and pyrophosphate (PP) in sediments was determined. The sediments used were collected from Cape Fair, Thomas Hill Lake, Flat Branch Creek, and Maries River. The rate of ...
The detection and mapping of subterranean water bearing channels - phase 2
(1975)
"The research conducted under this Grant was directed towards the development of a method for the detection and delineation of subterranean cavities. Such cavities in the carbonaceous rocks of Missouri form a vast system ...
Influence of organic carbon and microorganisms on iron and sulfide concentrations in groundwater
(1977)
This study was undertaken to evaluate the feasibility of using a fluidized sand bed to coprecipitate the insoluble phosphorus complex of hydroxylapatite with calcium carbonate on the surface of sand grains to form dry ...
Water quality as related to possible heavy metal additions in surface and ground water in the Springfield and Joplin areas, Missouri
(1973)
Some 165 seasonal water samples were collected and analyzed for heavy metals from surface and subsurface sources in a one hundred mile area around Springfield and Joplin, Missouri, respectively. Joplin is in a former large ...
Optimization of operation of a system of flood control reservoirs
(1973)
Optimization of operation of a system of flood control reservoirs is established by the application of mathematical programming. The mathematical procedure is applied to two different types of systems, reservoirs in parallel ...
Sorption and desorption of chlorinated hydrocarbon pesticides in aquatic sediment minerals
(1971)
The fundamental sorption and desorption reactions between selected chlorinated hydrocarbon pesticides and clay minerals were established in this study. The effects of several important environmental factors, including pH, ...
Automated potentiometric techniques for the on-site monitoring of anion concentrations in water
(1970)
Characteristics of several of the new non-glass ion-selective electrodes and of several reference electrodes were studied in detail. The most significant finding of the research was the development of a new high accuracy ...
Potentiometric techniques for monitoring ions involved in water pollution
(1971)
The use of ion-selective electrodes, particularly the nitrate electrode, was explored for the analysis of ionic species in natural aquatic systems. Attempts to compensate quantitatively for the effects of interfering ions ...
Salt pollution of ground water
(1972)
An experimental model study was conducted to determine the behavior of induced motion in a salt water body overlain by fresh water. For the study, a narrow tank was constructed from plastic sheets of 0.25-inch thickness. ...
Integrating the effects of the Great Flood of 1993: changes in groundwater hydrology and quality in relation to changes in surface waters
(1994)
The Great Flood of 1993 had far-reaching impacts upon surface waters in the State of Missouri. Many stations along the Missouri River were above flood stage for months during the summer of 1993. Researchers conducted ...
Costs and benefits of wetland restoration of hydric cropland in Missouri: a preliminary assessment
(1991)
This report presents a preliminary analysis of the benefits and costs of restoring hydric cropland sites to wetlands in Missouri. Potential social and private (landowner) benefits and costs were estimated for 25 sites in ...
Analysis of social, fiscal, and structural factors affecting integrated pest management programs in Missouri and implications for future programs to protect water quality
(1996)
Integrated Pest Management (IPM) has experienced a resurgence of interest due in part to continuing reports of drinking water contamination by agricultural pesticides. In response to the decertification of certain pesticides ...
Heavy metal concentrations in drainage sediments possibly affected by landfill leachate
(1996)
Leachate was observed outside the confines of the Stone County Landfill, Missouri. Ants Creek and South Ants Creek located in the vicinity of the landfill may have received leachate. Both streams drain into Table Rock Lake. ...