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.
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Showing 1 to 20 of 474 for “"Stormwater"”.
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The Effectiveness Of A Specifically Designed Green Roof Stormwater Treatment System Irrigated With Recycled Stormwater Runoff to Achieve Pollutant Removal and Stormwater Volume Reduction
… threats to surface-water quality is polluted stormwater runoff. In this research, investigated is the use of a green roof irrigated with recycled stormwater runoff to remove pollutants from stormwater runoff and reduce the volume of stormwater runoff leaving developed areas. The green roof …
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Stormwater management and multipurpose infrastructure networks
… to explore the topic, this thesis focuses on stormwater management as one basic building block or fundamental component of multipurpose infrastructure development. An increasing number of cities will seek to implement green infrastructure approaches or stormwater best management practices …
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Floating wetlands for urban stormwater treatment
A floating treatment wetland (FTW) is an ecological approach which seeks to reduce point and nonpoint source pollution by installing substrate rooted plants grown on floating mats in open waters. While relatively novel, FTW use is increasing. A review of literature identified several research gaps, …
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The viability of using the stormwater ponds on the Diep River in the Constantia Valley for stormwater harvesting
Harvesting stormwater to supplement water demands has attracted a growing interest in South Africa as concerns over the security of the country's water supply increase. Whilst stormwater harvesting has been shown to offer a viable alternative water resource, there are often concerns about its …
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Paying for municipal stormwater services : a case study on drivers of stormwater user fees in three Massachusetts communities
Urban stormwater is a major source of pollution in U.S. water bodies. Addressing the problem of stormwater pollution at the municipal level can be expensive, from infrastructure maintenance to implementing regulatory best practices. These needs have put pressure on municipalities to look for a …
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Removal of Nitrates from Stormwater Using Nanoclays
… and rivers are often polluted as a result of stormwater runoff that carries various contaminants in to open water bodies, causing adverse environmental and health effects. Low impact development (LID) techniques are currently employed to treat this runoff prior to discharge. Nitrate, however, …
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Urban Agriculture Stormwater Management in California Cities
… public health, has the potential to help with stormwater runoff, creates jobs, and fosters community. In the last few years, several California cities have made headlines as they have adopted new zoning codes that include urban agriculture.</p> <p>In reviewing these new zoning codes and …
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Sustainability analysis of distributed, green stormwater infrastructure
… grow in population and density of development, stormwater management has become a higher priority for municipal leaders, civil engineers, and residents. Traditional gray infrastructure, i.e., large, piped conveyance networks, effectively removed stormwater runoff and all its associated problems …
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Stormwater Treatment by Two Retrofit Infiltration Practices
… Tech designed and constructed two innovative stormwater best management practices (BMPs). The goal of this project was to evaluate the effectiveness of a bioretention cell and a CU-Structural Soil™ infiltration trench. BMP construction was completed in July 2007. Twenty-nine precipitation …
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Making the Case for Tailored Stormwater Management
… be improved by evaluating alternative site stormwater management (SWM) strategies at a watershed scale and selecting the optimal strategy for a subject watershed. Tailoring a management strategy for a specific watershed may be worthwhile to minimize development costs and maximize downstream …
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Operationalizing Scale in Watershed-based Stormwater Management
Watershed-based stormwater management (WSM) has been proposed as more effective for stormwater management than traditional methods of controlling stormwater, which are carried out based on jurisdictional lines at the parcel-scale. Because WSM considers the watershed as a total unit, this method is …
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A stormwater management analysis of Blacksburg, Virginia
Many aspects of managing stormwater runoff were investigated for the Town of Blacksburg, Virginia, that would minimize the costly installation and environmentally damaging impacts of storm sewers as the town urbanizes. These aspects included the technical, political, financial, legal, and …
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Treatment of urban stormwater runoff by sedimentation
… that could be achieved by sedimentation of stormwater runoff. Seven runoff samples were collected from shopping centers, which were selected because of their large impermeable surfaces resulting in high pollutant concentrations. The sampling sites were also representative of locations where …
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Evaluation of Green Stormwater Infrastructure Monitoring Protocols
… landscapes, also referred to as urbanization, stormwater management has evolved in an effort to address and counteract impairment of waterways in the United States by extensively implementing best management practices (BMPs) or Green Stormwater Infrastructure (GSI). Facilities are installed …
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Stormwater quality management strategy: Peters Creek watershed
The effect of stormwater runoff on the water quality of Peters Creek was investigated. Creek water was sampled at rural, suburban and urban sites. Background and runoff samples were analyzed for sediment, nutrient and heavy metal concentrations. The area upstream of the suburban site was found to …
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Constructed Floodplain Wetland Effectiveness for Stormwater Management
… Virginia as a best management practice (BMP) for stormwater management. The research goals were to 1) determine if wetland hydrology existed and quantify the role of groundwater exchange in the constructed wetland (CW) water budget, 2) estimate wetland hydraulic characteristics during overbank …
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Characteristics of urban development and associated stormwater quality
… increase the quantity and worsen the quality of stormwater runoff, which can seriously impair receiving waters. It is known that there is considerable variability in runoff quantity and quality between rain-to-rain events due to rainfall spatial variability. In addition, runoff presents …
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Investigation of deterioration models for stormwater pipe systems
Like other engineering structures, buried stormwater drainage pipes deteriorate and fail over time in terms of pipe collapses due to structural deterioration or pipe blockages due to hydraulic deterioration. The deterioration of service infrastructure was a concern in Australian in recent times, …
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Modelling of urban stormwater drainage systems using ILSAX
… urbanisation is related to management of stormwater from developed areas. If stormwater is not managed properly, it may lead to flooding of urban areas, and deterioration of water quality in rivers and receiving waters. Urban drainage systems are used to manage urban stormwater. For design …
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Use of Stormwater as an Alternative Supply Source
… resources. At the same time, the management of stormwater is being re-examined with the focus changing from the traditional practice of rapid disposal of stormwater (to reduce the risks of flooding) to utilisation of stormwater as an alternative water supply source. The focus of this thesis is …
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