Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 17 of 17 for “"reservoir sediment"”.
-
Downstream suspended sediment dynamics of reservoir sediment flushing
Reservoir sediment flushing is increasingly considered beneficial to reduce sedimentation of reservoirs and maintain sediment supply downstream of impounded rivers. Nevertheless, flushing of the accumulated sediments downstream of the dam also bears numerous negative impacts. In this study, first …
-
Analysis of actinobacterial biodiversity in reservoir sediment and cave soil and screening of isolates for antimycobacterial activity
… namely, cave soil, the wall of the cave and sediment from the shallow waters of a reservoir. Twenty nine (29) isolates were successfully identified to the genus level by 16S-rRNA gene analysis: one Micrococcus strain, one Streptacidiphilus strain, one Micromonospora strain and 26 Streptomyces …
-
TRACKING RELEASE OF RESERVOIR SEDIMENT CONTAMINATED BY HEAVY METAL MINING WASTE: A STUDY OF LARGE-SCALE DAM REMOVAL AT MILLTOWN, MONTANA
… in heavy metals concentration in downstream sediment. The primary source of contamination came from base metal extraction mining waste which had collected in reservoir sediments for more than a century. Health and environmental concerns associated with high concentrations of arsenic and …
-
TRACKING RELEASE OF RESERVOIR SEDIMENT CONTAMINATED BY HEAVY METAL MINING WASTE: A STUDY OF LARGE-SCALE DAM REMOVAL AT MILLTOWN, MONTANA
… in heavy metals concentration in downstream sediment. The primary source of contamination came from base metal extraction mining waste which had collected in reservoir sediments for more than a century. Health and environmental concerns associated with high concentrations of arsenic and …
-
SAMPLING AND MODELING OF SEDIMENT TRANSPORT AND RESERVOIR EROSION FOLLOWING DAM REMOVAL: MILLTOWN DAM, MONTANA
… bedload transport in combination with suspended sediment and discharge data collected by the USGS illustrate the rates, magnitudes and processes by which reservoir sediment evacuated the Milltown Reservoir after the 2008 removal of Milltown Dam from just downstream of the confluence of the …
-
SAMPLING AND MODELING OF SEDIMENT TRANSPORT AND RESERVOIR EROSION FOLLOWING DAM REMOVAL: MILLTOWN DAM, MONTANA
… bedload transport in combination with suspended sediment and discharge data collected by the USGS illustrate the rates, magnitudes and processes by which reservoir sediment evacuated the Milltown Reservoir after the 2008 removal of Milltown Dam from just downstream of the confluence of the …
-
Initial response of riparian vegetation to dam removal on the Elwha River, Washington
… nutrient and energy storage, buffering of sediment and pollution, and maintenance of biodiversity. Worldwide, riparian ecosystems are threatened by a variety of human-induced disturbances including climate change, development, invasive species, and flow alteration by dams. Vegetation in …
-
Geoprocessing Approaches to Delineate Impoundments and Characterize Subcatchments within Kansas Reservoir Drainages
Federal reservoirs in Kansas are presently undergoing infill at varying rates and represent a growing concern, as these features are integral to the state’s infrastructure and projected dredging required to restore capacities are substantial. Kansas exhibits a unique hydrography by having some of …
-
Effects of sediment on water quality in the Occoquan Reservoir
… investigation was to determine the effect of sediments in the Occoquan Reservoir on the water quality. Phosphate determination by the ascorbic acid method was first evaluated for its precision and accuracy. An assay was developed to measure the rate of nutrient phosphate release to the …
-
Upstream Geomorphic Response to Dam Removal: The Blackfoot River, Montana
… investigated the spatial and temporal pattern of reservoir sediment erosion and upstream channel evolution of the Blackfoot River, MT, following the 8 m base level reduction caused by the removal of Milltown Dam. Field data collected include surveys of channel bed topography and water surface …
-
Upstream Geomorphic Response to Dam Removal: The Blackfoot River, Montana
… investigated the spatial and temporal pattern of reservoir sediment erosion and upstream channel evolution of the Blackfoot River, MT, following the 8 m base level reduction caused by the removal of Milltown Dam. Field data collected include surveys of channel bed topography and water surface …
-
Evaluation of diagnostic fracture injection test (DFIT) and rate transient analysis (RTA) in Hereford field, northern DJ Basin
Since the inception of unconventional reservoir development in the United States, hydraulic fracturing and acidizing have become the primary techniques for stimulating these ultra-low permeability reservoirs. Furthermore, unlike conventional reservoirs, unconventional reservoirs require a much …
-
Quantifying Channel Responses to the Removal of the Glines Canyon Dam in the Middle Reach of the Elwha River, Washington
… accumulate the new influx of woody debris and sediment from the dam removal, which influenced the response of the river channel. The change that occurred was quantified by using repeat Terrestrial LiDAR (TLS), sediment distribution surveys, and large woody debris mapping techniques. The …
-
Nanoparticle - Heavy Metal Associations in Riverbed Sediments
… plasma mass spectroscopy (HR-ICPMS). Riverbed sediment samples were taken from the Clark Fork River in Montana, USA where a large-scale dam removal project has released reservoir sediment contaminated with toxic trace metals (namely Pb, Zn, Cu and As) which accumulated from one and a half …
-
Learning for sustainable management of sedimentation in the Makoye reservoir in Monze east of Southern province,Zambia
Environmental issues such as sedimentation have accelerated due to increase in population and changes in land uses. This has made water managers to face complex technical challenges in managing water bodies. To address such environmental issues, the Global Action Program (GAP) by UNESCO (2014) …
-
Learning for sustainable management of sedimentation in the Makoye reservoir in Monze east of Southern province,Zambia
Environmental issues such as sedimentation have accelerated due to increase in population and changes in land uses. This has made water managers to face complex technical challenges in managing water bodies. To address such environmental issues, the Global Action Program (GAP) by UNESCO (2014) …
-
Revegetation of two drained reservoirs on the Elwha River ten years after dam removal
… The resulting dewatering of Lake Aldwell, the reservoir of the Elwha dam, and Lake Mills, the reservoir of the Glines Canyon dam exposed over 270 hectares of land that had been submerged. While several studies have examined the revegetation of these drained reservoirs, none have gone beyond 5 …