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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 170 for “"water quality parameters"”.
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On-line monitoring of water quality parameters
… current EC legislative requirements for water quality. The need for on-line water quality monitoring and the alternative instrumental approaches to it are discussed, together with the philosophy of "easy care instrumentation" and water industry requirements for online analysers. A simple …
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Measurement of Soil and Water-Quality Parameters to Understand Subsurface Transport Processes
… as excess rainfall and/or draught cycles on saltwater intrusion processes with a focus on managing freshwater resources in island aquifers. As part of this effort, we used a combination of laboratory experiments and numerical simulations to study the impacts of changes in rainfall patterns on …
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Detecting long-term trends in water quality parameters using remote sensing techniques
… long-term records of chemical and biological water quality, which are not widely available. Moderate resolution remote sensing imagery is a rich and temporally extensive source of information about ecological systems and may be useful for detecting past and predicting future changes in …
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Insect-Induced Forest Disturbance Impacts on Select Water Quality Parameters in a Closed Drinking Water Reservoir
… precipitation and river inflows impact drinking water reservoirs. Natural organic matter (NOM) directly impacts water treatment process effectiveness and is identified as an emerging contaminant of concern. Few studies have examined how insect-induced forest disturbance contributes to abiotic …
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Spatial and temporal patterns exhibited by select physicochemical and biological water quality parameters in Lake Texoma, Oklahoma and Texas.
… were performed on seventeen (17) physicochemical parameters from each of the eleven sampling stations and phytoplankton count data from one sampling station within each reservoir zone and physicochemical parameters were observed to exhibit a fixed spatial gradient. Strong density gradients …
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Analysis of Water Quality Parameters in East Texas: A Temporal Study of Attoyac Bayou Watershed Between 2010 to 2024
<p>The Attoyac Bayou, one of the sub watersheds of Upper Neches River Watershed, failed to attain the water quality standards set by Texas Commission on Environmental Quality (TCEQ) and Environmental Protection Agency (EPA) for elevated <em>Escherichia coli</em> (<em>E. coli</em>)<em> </em>starting …
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Levels of Heavy metals in Soil, Water, and Plants and Variation of water Quality Parameters at Vikuge in Kibaha District, Tanzania
… zinc, chromium and iron) were checked in soil, water, plant leaves, fruits and roots obtained at Vikuge in Kibaha, Tanzania. The samples of water from the three wells were taken in triplicate, similar to the samples of plants, fruits and roots. The samples were analyzedusing standard methods. …
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Evaluation of a semi-analytical approach to the retrieval of water quality parameters from optical data in European coastal Case-II waters
This work addresses the retrieval of the three water quality parameters chlorophyll-a, yellow substance and suspended particulate matter from spectra of remote sensing reflectance in European coastal waters. We study the suitability of a semi-analytical algorithm for the retrieval of these …
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The Use of Selected Water Quality Parameters to Identify Fecal Coliform Sources in Support of the Sinking Creek Total Maximum Daily Load.
… is on the 303(d) list for not meeting minimum water quality standards for recreation. A Total Maximum Daily Load (TMDL) for fecal coliforms was developed. The purpose of this study was to investigate the use of water quality parameters to identify areas that contribute to the fecal coliform …
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An investigation of some key physico-chemical water quality parameters of an Integrated Multi-Trophic Aquaculture (IMTA) system operating recirculation methodology in the Western Cape of South Africa
… of abalone farms) and a desire to recirculate water whilst reducing the environmental footprint of the abalone farms. The growing prevalence of IMTA as a commercially viable activity has brought about a need for an expansion of the knowledge pool regarding the physico-chemical processes at work …
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THE ASSESSMENT OF THE QUALITY OF WATER RESOURCES IN NORTHERN THAILAND: TOWARDS SAFE DRINKING-WATER ACCESS FOR VULNERABLE POPULATIONS
The main aim of this study was to evaluate the quality of the drinking-water resources in Northern Thailand. To achieve this, several case studies using key water quality parameters, particularly those that may be hazardous to human health when ingested, were presented in this thesis. These water …
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Carbon and Nitrogen Dynamics in High Intensity Minimal Exchange Shrimp (<i>Litopenaeus vannamei</i>) Raceways
… if there was a significant difference in any water quality parameters between the 2 density treatments, (2) construct carbon and nitrogen budgets to see where the carbon and nitrogen went in the system for all growouts, (3) determine if plastic media had any effects on water quality parameters …
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Tree Canopy Effects on Roof-Harvested Rainwater in East Texas
<p> Nine experimental metal roofs with rainwater harvesting systems were constructed and water quality parameters were measured in 2016-2017 in order to evaluate the effects of arboreal overhang on roof-harvested rainwater quality collected in East Texas. Three treatments were evaluated: Rainwater …
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Investigating Historical and Contemporary Land Cover Effects on Macroinvertebrate Communities and Water Quality of Virginia Piedmont Streams
… land cover and macroinvertebrate communities, water quality, and nutrient levels in 10 streams in a historically agricultural region of the Virginia Piedmont. Historical (1963) and contemporary (2011) impervious surface, open area, and forested cover were evaluated using aerial photos and GIS …
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Application of data mining techniques to predict the performance of matured Vertical Flow Constructed Wetlands Systems treating urban wastewater
… environment causing massive accumulation of wastewater. Wastewater is one of the closest sources of environmental problems, at the same time water scarcity is becoming alarming due to its high demand as the global population is increasing. Hence, the application for managing available water …
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An investigation of land-use impacts on water quality and algal communities in the Nottawasaga River and low-order streams of the Nottawasaga Valley Watershed
The Nottawasaga Valley Watershed (NVW) is a large catchment south of Georgian Bay that drains a primarily agricultural region including one of the largest wetland complexes in Southern Ontario, the Minesing Wetlands (MW). The MW are designated both provincially and internationally significant due …
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Utility of remote sensing data in retrieval of water quality consituents concentrations in coastal water of New Jersey
… optical properties used for monitoring coastal water quality are the concentrations of chlorophyll (CHL), color dissolved organic matter (CDOM) and total suspended materials (TSM). Ocean color remote sensing, a technique to collect color data by detection of upward radiance from a distance …
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Time-Resolved Monitoring of Water Quality in Ozarks Springs During Storm Events
The availability of water resources is one of the most important factors in the settlement of an area, and indigenous communities worldwide exhibit commonality by concentrating their settlement close to fresh water sources. Springs resulting from karst geology are often used as water sources. …
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