stormwater technology Articles
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Urban waste- and stormwater management in Greece: past, present and future
Urban wastewater and storm management has a long history which coincides with the appearance of the first organized human settlements (ca. 3500 BC). It began in prehistoric Crete during the Early Bronze Age (ca. 3200 BC) when many remarkable developments occurred in several stages known as Minoan civilization. One of its salient characteristics was the architecture and function of its ...
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A planning algorithm for quantifying decentralised water management opportunities in urban environments
With global change bringing about greater challenges for the resilient planning and management of urban water infrastructure, research has been invested in the development of a strategic planning tool, DAnCE4Water. The tool models how urban and societal changes impact the development of centralised and decentralised (distributed) water infrastructure. An algorithm for rigorous assessment of ...
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Hydraulic and treatment performance of pervious pavements under variable drying and wetting regimes
Pervious pavements are an effective stormwater treatment technology. However, their performance under variable drying and wetting conditions have yet to be tested, particularly under a continuous time scale. This paper reports on the clogging behaviour and pollutant removal efficiency of three pervious pavement types over 26 accelerated years. These pavements were monolithic porous asphalt (PA), ...
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Assessing the viability of microhydropower generation from the stormwater flow of the detention outlet in an urban area
Small-scale hydropower is the generation of electrical power of 10 MW or less from the transformation of kinetic energy in flowing water to mechanical energy in a rotating turbine to electrical energy in a generator. The technology is especially useful when installed with a stormwater infrastructure in countries teeming with abundant rainfall. It is upon this concept that this study is being ...
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Manage Stormwater Runoff with Skimming Technology
When the sky cries, that’s a natural phenomenon. But when Nature’s pure water mixes with various types of oil and hydraulic fluids or other contaminants, the result is a man-made problem. Commonly called stormwater runoff, rainwater will flow wherever it wants once it hits Earth. And this characteristic is what makes water troublesome wherever it encounters oil – in heavy ...
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A brief history of water supply and wastewater management in ancient Greece
The evolution of urban water management in ancient Greece begins in Crete during the Middle Bronze and the beginning of the Late Bronze Ages (ca. 2000–1500 B.C.) when many remarkable developments occurred in several stages as Minoan civilization flourished on the island. One of its salient characteristics was the architectural and hydraulic function of its water supply and sewerage systems in the ...
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Reducing environmental impact
Replacing a decades-old wastewater treatment plant in the center of a densely populated European metropolis is not a task for the faint of heart. But that is exactly what a Veolia-led consortium did in a northern suburb of France with Lille Métropole’s new Ovilléo wastewater treatment plant that was commissioned in 2014. In 2010, a six-year ...
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Stormwater treatment area 3/4
Restore the Everglades That's the task the Florida Legislature set for the South Florida Water Management District. But how? Decades of development had eliminated the sheet flow of water from Lake Okeechobee. Densely populated cities and a 700,000-acre agricultural area, drained by 1,500 miles of canals and levees, now lay between the lake and the Everglades. Wetlands have disappeared. Worse, ...
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Three Ways to Think Like a Sponge City
Climate change is real, regardless of whether we agree on the cause. Forward-thinking urban regions are beginning to realize that the effects of climate change are going to be felt, at least to some extent, no matter what actions we take now. The future, if we plan to be there, must be sustainable. So what does that look like where stormwater is concerned? One of the most innovative trends in the ...
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Distributed urban storm water modeling within GIS integrating analytical probabilistic hydrologic models and remote sensing image analyses
Analytical probabilistic hydrologic models (APMs) are computationally efficient producing validated storm water outputs comparable to continuous simulation for storm water planning level analyses. To date, APMs have been run as spatially lumped or semi-distributed models relying upon calibrated and spatially averaged system state variable inputs/parameters limiting model system representation and ...
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Factors that affect the hydraulic performance of raingardens: implications for design and maintenance
Raingardens are becoming an increasingly popular technology for urban stormwater treatment. However, their hydraulic performance is known to reduce due to clogging from deposition of fine-grained sediments on the surface. This impacts on their capacity to treat urban runoff. It has been recently hypothesised that plants can help to mitigate the effect of surface clogging on infiltration. A ...
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Enlightenment from ancient Chinese urban and rural stormwater management practices
Hundreds of years ago, the ancient Chinese implemented several outstanding projects to cope with the changing climate and violent floods. Some of these projects are still in use today. These projects evolved from the experience and knowledge accumulated through the long coexistence of people with nature. The concepts behind these ancient stormwater management practices, such as low-impact ...
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Contributions to the design of rainwater harvesting systems in buildings with green roofs in a Mediterranean climate
Green roofs (GRs) are becoming a trend in urban areas, favouring thermal performance of buildings, promoting removal of atmospheric pollutants, and acting as possible water collection spots. Rainwater harvesting systems in buildings can also contribute to the management of stormwater runoff reducing flood peaks. These technologies should be enhanced in Mediterranean countries where water ...
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Applying multi-criteria decision analysis to select WSUD and LID technologies
Water Sensitive Urban Design (WSUD) and Low Impact Development (LID) principles were investigated in Dhaka's drainage network using ‘Regime in Balance’ strategy for Average Recurrence Interval (ARI), Y = 100 years. Three feasible alternatives, such as, leaky-well, soak-away and infiltration trench were identified and designed to improve Dhaka's present ...
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Monitoring fuels in Stormwater - Case study
The Situation A major pipeline company has large storage tank farms throughout the Western States. The pipeline company transports, stores, blends additives, and distributes gasoline, diesel, and jet fuel to retail service stations and airports. Due to the quantity and movement of fuel at these facilities, there is always the potential for fuel spills. These facilities prevent out of compliance ...
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Uptown shopping center - Case Study
ChitoVan Chitosan Lactate Cartridge Pretreatment and Sand Filtration Urban development and redevelopment present a host of challenges - not the least of which is managing site stormwater runoff. In a northern suburb of Vancouver Island’s beautiful city of Victoria, BC the stormwater challenge was met and bested through the application of both passive and active chitosan stormwater ...
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