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Showing 1 to 20 of 23 for “"water quality assessment"”.
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Water Quality Assessment in Cypress Creek Nature Preserve
… by cypress removal and land development in their watersheds. Cypress Creek Swamp, which lies near Paducah in western Kentucky, is a good example of a swamp whose ecological integrity may be threatened by past and current nearby land use practices. This study was conducted to assess the water …
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Nepal drinking water quality assessment : nitrates and ammonia
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
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Applications of Sensory Analysis for Water Quality Assessment
In recent years, communities that source raw water from the Dan River experienced two severe and unprecedented outbreaks of unpleasant tastes and odors in their drinking water. During both TandO events strong 'earthy', 'musty' odors were reported, but the source was not identified. The first TandO …
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Occoquan Reservoir and Watershed: A Water Quality Assessment 1973–2019
… systems in the United States. It in an important water supply source for the Northern Virginia area, as well as, an ecological and recreational area. Furthermore, the Occoquan Reservoir protects the water quality of the Chesapeake Bay because it acts as a trap for sediments and pollutants. …
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Sewage, salt, and sediments: water-quality assessment of the lower Vaal-Orange River system
ENGLISH ABSTRACT: Water users in the lower Vaal-Orange River system are subjected to chemicals and pathogens from sources over which they have little control. These sources include raw sewage from dysfunctional wastewater-treatment works, saline irrigation return flows and upstream discharges from …
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A Water Quality Assessment of the Occoquan Reservoir and its Tributary Watershed: 1973-2002
The Occoquan Reservoir is a public water supply in northern Virginia. The Occoquan Watershed has developed over the years from rural land uses to metropolitan suburbs within easy commuting distance from Washington, DC. Due to this urbanization, the Occoquan Reservoir is especially vulnerable to …
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Water quality assessment and evaluation of human health risk of drinking water at Thulamela Municipality, Limpopo Province
Water quality of drinking water has been linked to good health outcomes across the world. The aim of this study was to assess physico-chemical, bacteriological, community practices regarding collection and storage of water and evaluation of human health risk characteristics of drinking water …
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Fish Community Structure and Water Quality Assessment (Index of Biotic Integrity) of the San Marcos River, Texas
… structure by surveying fishes and to assess water quality and impacts from point and nonpoint sources using the Index of Biotic Integrity (181). The stable water temperature, flow and clarity found in the headwaters of the San Marcos River has allowed the development of a refugia for endemic …
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Water quality assessment and potential ecological risk of trace metals in sediments of some selected wetland across Limpopo Province; South Africa
… resources. This study was conducted to evaluate water quality and the potential ecological risk due to trace metals in sediments across wetlands in Limpopo Province. The samples' physicochemical parameters were tested in the field and the laboratory. All the instruments used to test the …
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Development of in situ synthesis of silver polysulfone membrane for water separation
Water treatment using membrane filtration is one of the common methods that can generate higher amount of quality water in future. However, polymer blending method via ex-situ synthesis method shows some weaknesses on membrane modification such as membrane prone to fouling and hydrophobic. In this …
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Studies of Benthic Macroinvertebrate Use for Biomonitoring of Mid-Atlantic Highland Streams
Research was conducted in three areas of water quality assessment. Long term ecological monitoring data from Shenandoah National Park (SNP) were analyzed and a protocol for data analysis was presented. Streams in SNP were found to be comparable to the best that can be found in the Blue Ridge …
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Changes in colonization dynamics and community structure of protozoans and macroinvertebrates in response to stress
… studies have been suggested as a method of water quality assessment, colonization dynamics and particularly the fitted rate constant, G, may be misleading unless considered in conjunction with equilibrium information.
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A multi-disciplinary approach to tracking the downstream impacts of inadequate sanitation in Central Appalachia
… to high levels of fecal contamination in local waterbodies and subsequent exposure to waterborne disease can occur. Although standard water quality measures such as quantification of E. coli can reveal relative concentrations of fecal contamination, they do not pinpoint the sources of such …
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Characterizing and Real-Time Monitoring of Various Types of Waters and Wastewaters Contaminated With Algae, Recycled Plastic Powders, and Clay Using the New Electrical Methods With Vipulanandan Models
… for real-time monitoring of contaminated water systems using Electrochemical Impedance Spectroscopy (EIS) integrated with the Vipulanandan Case-2 Smart Cement Model. The research bridges environmental water-quality assessment and impedance-based material characterization by developing a …
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Evaluating the Fate of Manure Nitrogen in Confined Dairy Waste Operations: a Full-Scale Waste Analysis and Start-Up Protocol for an Anammox-Based Treatment Technology Applicable to Dairy Waste Management
… from dairy waste, a novel biological wastewater treatment process, utilizing anaerobic ammonium oxidation (anammox), referred to as Oxygen-Limited Autotrophic Nitrification and Denitrification (OLAND) was examined. Due to the potential use of OLAND-based systems in dairy manure management, …
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aiWATERS: An Artificial Intelligence Framework for the Water Sector
… beyond research and academia. Concurrently, the water sector is undergoing a digital transformation, driven by challenges such as water demand forecasting, wastewater treatment, asset maintenance and management, and water quality assessment. Water utilities are at different stages in their …
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Development of ultrasensitive electrochemical sensors based on nanocomposites for environmental applications
Water quality assessment is an essential component of environmental monitoring, which affects not only aquatic life but the surrounding ecosystem as well. The presence of organic and inorganic micropollutants such as carbamate pesticides and heavy metals in water is a crucial water problem …
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Biotic Integrity in the Northwestern Great Plains and Mechanisms Regulating Stream Condition in South Dakota
… (SD) streams were lacking a prairie stream water quality assessment. The work presented here in will be an expansion on this previous multi metric index from eastern SD into the Northwestern Great Plains (NWGP) ecoregion of western SD. Chapter one focuses on first developing indices of …
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Effects of sedimentation on reservoirs in the Mushibemba catchment, Mkushi Farm Block, Central Zambia
… the intended objective of providing agricultural water for food and economic security. The aim of this study was to assess the effects of sedimentation on the storage capacity losses of Moffat dam and GRZ weir located in the Mushibemba catchment of the Mkushi Farm Block in Central Province, …
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