Stormwater Management Articles
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Improving the microbiological quality of the Ruhr River near Essen: comparing costs and effects for the reduction of Escherichia coli and intestinal enterococci
After rain events in densely populated areas, combined sewer overflows (CSOs) can have severe health-related effects upon surface water quality, as well as diffuse overland runoff and wastewater treatment plants (WWTPs). All of these sources emit pathogens and fecal indicator bacteria into the surface water, which the EU Bathing Water Directive addresses by giving threshold values for the ...
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Visit us at the International Trade Fair “Water Berlin” from 28 -31 March in Berlin !
International Trade Fair “Water Berlin” from 28 -31 March in Berlin You can find us in Hall 3.2 – Booth No. 231 Get your free ticket: http://www.ott.com/tickets In two weeks the exhibition “Wasser Berlin International” opens its doors. From March 28th to March 31st, you will have the opportunity to discover trends and novelties around water-related topics. We will ...
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TOC analyzer for airports
During winter, de-icing processes at airports necessitate storm water and de-icing water management. Especially due to adhesive (sticky) substances, strongly fluctuating concentrations and a lot of chemicals, the monitoring systems itself must be tailor-made to fight this water analysis challenge. LAR 's QuickTOCairport is an application-specific online total organic carbon (TOC) analyzer that ...
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7 Species of Bees Added to Endangered List
Introduction For the first time in history, several American bee species have been classified as endangered. There are many factors that have contributed to the decline in bee populations in recent years, with climate change being at the root of many of these issues. In order to save the dwindling number of bees, we must implement the mitigation and management plans that are in place, including ...
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Modelling and optimization of land use/land cover change in a developing urban catchment
The impacts of land use/cover change (LUCC) on hydrological processes and water resources are mainly reflected in changes in runoff and pollutant variations. Low impact development (LID) technology is utilized as an effective strategy to control urban stormwater runoff and pollution in the urban catchment. In this study, the impact of LUCC on runoff and pollutants in an urbanizing catchment ...
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Transformational adaptation – when climate change means business as usual is no longer possible
1. A lesson from the past Deep in the central Sahara, a crumbling mud-brick town sits at the edge of a dry lake bed. This is the medieval town of Germa, in southwestern Libya, one of a string of settlements along the Wadi al-Ajal, a valley defined by the towering dunes of the Ubari Sand Sea to the north, and the black cliffs of the Messak Settafet plateau to the south. Germa is romantic and ...
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Enviroflex®: One Product – Many Applications
Enviroflex® is a fiber reinforced articulated concrete block for erosion control and scour protection. Following Soil Retention’s philosophy of performance of product and overall system instead of pure ease of manufacturing, Enviroflex® is cast as a tapered and vertically interlocking block (hard to make but very effective). Some flood control designers and major dam hydraulic ...
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Rainfall effects on inflow and infiltration in wastewater treatment systems in a coastal plain region
Aging wastewater collection and treatment systems have not received as much attention as other forms of infrastructure, even though they are vital to public health, economic growth, and environmental quality. Inflow and infiltration (I&I) are among potentially widespread problems facing central sewage collection and treatment systems, posing risks of sanitary system overflows (SSOs), ...
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Secondary Oil Containment at US Army Corps of Engineers - Big Bend Dam - Case Study
Big Bend Dam takes its name from the unique bend in the Missouri River seven miles upstream from the dam. Construction of the dam began in 1959 and the embankment was completed in July 1963. Big Bend dam is 95 feet (29 m) high and 10,570 feet (3,220 m) in length. Power generation began at the facility in 1964 and the entire complex was completed by 1966. The hydroelectric plant generates 493,300 ...
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Hydro-technologies in the Minoan Era
Significant characteristics of the Minoan civilization were: (a) their peaceful living with their environment and neighbors (although the Minoans dominated in the Mediterranean for almost two millennia, in none of the numerous wars and/or conflicts that occurred in the region were they directly or indirectly involved) and (b) technological developments that are unprecedented in world history, ...
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E-Z Trays® Treating Multiple Groundwater Contaminants in Grand Island, NE - Case Study
The U.S. Environmental Protection Agency has launched an effort to treat contaminated groundwater in Grand Island, Nebraska. The Parkview Well Superfund Site consists of two areas of groundwater contamination, the Northern and Southern Plumes, which include several volatile organic contaminants including tetrachloroethene (PCE), 1,1-dichloroethene (DCE), 1,1,1-trichloroethane (1,1,1-TCA) and ...
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EPA assessing wastewater nutrient pollution
Nutrient pollution of waterways is the “single greatest challenge to our nation’s water quality,” according to the United States Environmental Protection Agency. Across the U.S., excess nitrogen and phosphorus are entering waterways, presenting seemingly constant challenges. To address these challenges, the EPA is surveying the nation’s publicly owned wastewater treatment ...
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Introducing The AerationPlus 1800 Circulator
We are very excited to announce Medora's first new product for 2017, the AerationPlus 1800 Circulator! There was a definite need for affordable and effective circulation options for small lakes & ponds as well as smaller targeted areas within a larger lake or reservoir. The AerationPlus 1800 was designed specifically to do just that. ...
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Surface water quality assessment of Amingaon (Assam, India) using multivariate statistical techniques
The pollution of surface water has become a global environmental issue. Monitoring of surface water is essential to know the current status of water quality and maintain it at certain desirable level. In this study surface water quality of Amingaon has been analysed. Amingaon is a locality in North Guwahati (Assam, India). In last few decades’ the locality has undergone rapid and uncontrolled ...
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Water sensitive planning and design as an ecologically inspired approach to delivering flood resilient urban environment in Sri Lanka
The paper draws on Colombo, Sri Lanka as the case study for developing Water Sensitive Planning and Design (WSPD) to deliver a flood resilient urban environment. Digital data and documentary data were evaluated to analyse water sensitive characteristics, potentials and constraints within the catchment. Spatial analysis tools in ArcGIS were used when analysing issues in the landscape mosaic. ...
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Modelling rainwater harvesting for commercial buildings
Commercial areas are generally fully paved and with more impervious land cover than residential areas. This paper demonstrates a wall-mounted rainwater harvesting system designed to deal with limited land space. An arrangement of three tanks in series was used on a commercial shop lot where flat roofs generate large amounts of runoff. The system is compact, and can be installed and fitted ...
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Challenges in implementing integrated catchment management and sustainable stormwater solutions in Bangkok, Thailand
By reviewing related studies, published journal articles, research and government reports, this study explored the challenges in water governance, focused on the planning for integrated catchment management (ICM) and stormwater source control (SC) in Bangkok and its catchment. The review revealed implementation barriers, and eight categories of challenge: fragmented roles and ...
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Aura, the city of colour – Australia's shining example of widescale integrated water cycle management
Aura, the ‘City of Colour’, is a 48,000 person masterplanned community on Queensland's Sunshine Coast. Aura commenced construction in 2015 and will be developed over the next 25 years. Aura sets a benchmark in Australia regarding large scale urban water sustainability through the application of techniques such as rainwater capture and reuse, construction and operational stormwater treatment, ...
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Meeting Melbourne's future demand for water using aquifer storage and recovery
Melbourne is one of the fastest growing cities in Australia. City West Water (CWW) has developed an Integrated Water Cycle Management (IWCM) Strategy which includes the development of aquifer storage and recovery (ASR) schemes to store recycled water and storm water to assist with meeting future growth, where these schemes can be demonstrated to be viable and cost effective. The investigation ...
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Development of integrated management system (ISTORMS) for efficient operation of first flush treatment system for urban rivers
An integrated management system was developed for the efficient operation of a storm water treatment unit to assist in the management of urban river water quality and flow. The SWMM hydrological model was calibrated and then used to predict the hydrograph and concentration graphs of surface runoff from a storm events based on weather forecasts. These results are used to decide how to operate ...
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