infiltration pipe Articles
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Introducing the EcoVault-DN
EcoSense International Develops Breakthrough De-Nitrification Technology Early in 2014, in an effort to reduce nitrogen loading to the Indian River Lagoon (IRL), the Brevard County Department of Natural Resources met with the engineers at EcoSense International (ESI) to discuss improvements to Phase 2 of their Micco/Little Hollywood BMP Project. Phase 1 of the project involved installation of a ...
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An approximate model on three-dimensional groundwater infiltration in sewer systems
Groundwater infiltration through cracked sewer pipes has caused significant economic losses. This paper presents a three-dimensional analytical expression for calculating the steady-state groundwater infiltration rate into sewer systems. As an extension of the previously developed two-dimensional model by the author, this new model can be used to simulate the infiltration through an orifice ...
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WRc Third Party Approval and its Benefits
Our visit to the No-Dig 2018 exhibition at Peterborough found a very well attended event with lots of interesting new developments in the world of drain and sewer rehabilitation. We were primarily there to receive our WRc Approved certification from Peter Henley. WRc were sharing a stand with Electro Scan, who have appointed WRc as their representatives for the UK. The Electro Scan system tests ...
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Infiltration Study Poses Challenges But Could Save Millions on Treatment Plant
Lower 48 Instruments works in partnership with consulting engineers to provide equipment and manpower for flow studies. IBI Group, out of Columbus, OH, USA, contracted with the company to provide placement expertise, equipment and data collection for a period of 60 days. Lower 48 installed 16 meters across the combined sewer district collection system to measure flow as well as rainfall-event ...
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How Much Could You Save by Avoiding a Consent Decree?
In 2012, St. Louis, MO (Metropolitan St. Louis Sewer District) set a record for the most expensive sewer consent decree in history at $4.7 BILLION to be spent over the next 23 years. The cause of this consent decree and the cause of most consent decrees are overflow events that allow untreated waste into the nearby lakes, streams, river, or other nature areas. There are typically two types of ...
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Large Florida Utility Saving Money through Innovation - Case Study
After spending decades and millions of dollars rehabilitating sewer pipes across its service area, a large coastal utility embarked on a pilot pipe condition assessment program for 25,000 linear feet in areas prone to high unwanted infiltration rates. Electro Scan’s Focused Electrode Leak Location technology, or FELL, offers an innovative departure from legacy pipe inspection methods, such ...
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Isolating inflow & infiltration - Case Study
Sanitary district utilizes flow monitoring data to eliminate backup events Duckett Creek Sanitary District (DCSD), located in O’Fallon, Mo., was experiencing inflow and infiltration problems, causing backups and overflows. When annual bypass reports submitted to the U.S. Environmental Protection Agency (EPA) indicated noncompliance with federal regulations, Keith Arbuckle, DCSD director of ...
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Response of epilithic diatom assemblages to urbanization influences
Urbanization has long been recognized to alter the hydrology, water quality and channel form of waterways. Recently, consideration of urban impacts on waterways has expanded to include assessment of the aquatic biota, generally focusing upon the macroinvertebrate fauna. This study compares the impacts of urbanization on the structure of stream benthic diatom communities in 16 first- and ...
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