Global ETD Search
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Showing 1 to 6 of 6 for “"water retention time"”.
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Benthic Population Distributions in Red Rock Reservoir, Iowa Summer 1972
… of the substrate and bottom meter of water along with water retention time after three years of impoundment. Procedure. Benthic samples were obtained at weekly intervals with a Ponar dredge from two transects of six stations each from June 9 to August 1, 1972. Bottom sediments were …
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A Framework for Controlling Opportunistic Pathogens in Premise Plumbing Considerate of Disinfectant Concentration x Time (CT) and Shifts in Microbial Growth Phase
… leading cause of disease associated with potable water in the U.S. and many other countries. While secondary disinfectant is added by utilities prior to water distribution through pipes, the residual in water at the property line is sometimes insufficient to suppress OP growth. Conditions …
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Dam dimensions and surface porosity affect the water storage capacity of Beaver dam analogs compared to natural Beaver dams
… restoration strategies. My study compares water retention by Beaver Dam Analogs (BDAs) to natural beaver dams and undammed control reaches. I compared how dam dimensions affect the hydraulic performance of both BDAs and beaver dams, revealing gaps in research on their comparative …
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Impact of Flow Rate and Water Age on Opportunistic Pathogen Growth: Implications for Water Conservation, Fixture Design, and Policy
Water conservation efforts have led to a decrease of flow rates in buildings, increasing water retention time (WRT) and sometimes opportunistic pathogens (OPs) growth. A novel experiment with replicated distal pipes operated at commonly used flow rates was designed to evaluate the effects of water …
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Chapter 1, a dichotomous key for the identification of nine salmonids of the Inland Northwest using six diagnostic skull bones; and associated equations to estimate total length and weight form bones ingested by piscivores or found in archeological sites; Chapter 2, Utilization of acoustic biotelemetry to define the movements of Lake Roosevelt Redband trout, oncorhynchus mykiss gairdneri
… for reservoir elevation, inflow, discharge, water retention time, and temperature collected from the forebay at Grand Coulee Dam to asses the effects of reservoir operation on redband movement. Though there was a small amount of overlap between the tributary groups, we observed a general …
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Lakes and Groundwater of the Rieti Basin, Central Italy: Hydrochemistry, Paleolimnology, and Seismologic Influences
A combination of water and sediment core samples were recovered and analyzed to study the hydrochemistry and paleolimnology of two lakes in the Rieti Basin and adjacent groundwater springs. Chemical and stable isotopic tracers were used to characterize water samples and to examine downcore changes …