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SPONSOR:
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1-800-809-2801
www.ENV21.com
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Imagine the perfect stormwater treatment train, and the ability to have a single source for treatment and detention/retention products.
Environment 21 is your solution for a complete treatment train package. Providing preliminary designs in as little as 8
hours.
Click here
for a brief introduction to some of the new stormwater management products offered by Environment
21.
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Featured
White Papers, Articles, and Case Studies |
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Analysis Of Long Term Rainfall To Develop Stormwater Quality Flow Rate Design Criteria |
| This paper proposes a flow based sizing methodology for manufactured BMPs called the water quality flow (WQF). An overview of the "first principles" used to determine a water quality volume (WQV) is discussed and a similar approach to determine a WQF is proposed. Like the WQV, the WQF is selected based on treating the 80th to 90th cumulative percentile volume of the annual runoff... |
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Improving Urban Stormwater Management With 2D Water
Modeling Applications |
| Engineers and city planners can never be too careful when it comes to urban flood protection and loss prevention. Recent storm and flooding disasters throughout the world have highlighted the need for government bodies to prepare for the effects of climate change and extreme weather events in urban environments. Engineers are currently faced with the growing issue of managing and predicting flood run off with complicated drainage and pipe systems impacted by continual population growth and aging infrastructure. As a stormwater management tool, 2D models are more hydraulically accurate to real-life overland flows and produce graphic results, which enable decision makers to plan better... |
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New One-Dimensional Implicit Numerical Dynamic Sewer And Storm Model |
| A one-dimensional hydrodynamic numerical model has been developed and implemented
for modeling of unsteady flows in sewer and storm water urban drainage system. The new numerical model uses an implicit four-point, finite difference solution technique to solve the one-dimensional Saint-Venant equations. Advanced numerical techniques, such as Local Partial Inertial modification for subcritical, supercritical, and transitional flows, and relaxation for pipe/channel networks, are used to achieve computational performance and robustness as required for practical use in a water resources engineering commercial software package... |
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LEED-ing Your Stormwater Down the Green Path |
| The U.S. Green Building Council has developed the Leadership in Energy and Environmental Design, otherwise known as LEED. This program is a national standard for green building design and was developed with the intention of improving occupant well-being, environmental performance and economic returns. This is accomplished by using innovative design practices and technologies. In order to meet LEED standards, a rating system has been developed which assigns credit for the incorporation of various technologies and practices into building design... |
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Turf Reinforced Composite Channel Design Saves Boulder City's Environment And Budget |
| Tight budget constraints, high velocity flows exceeding 14 feet per second, and the aesthetic demands of Las Vegas Valley golf enthusiasts were just a few of the challenges faced when designing the Boulder City Golf Course. Boulder City Public Works and VTN Nevada implemented an innovative composite design that best utilized the performance characteristics and economic advantages of three proven erosion control technologies; an articulating concrete block revetment system, Pyramat high performance turf reinforcement mat, and Landlok turf reinforcement mats... |
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Pumping Out The Waters And Pumping Up The Praise Down In The Heart Of Georgia's 'Low Country' |
| After decades of extensive property damage due to flooding that occurred during hurricanes and heavy rain storms, the city of Savannah and its environs is now near-fully protected from such storm events. This area received the name the 'low country' as most areas are only a mere 7.5 feet above mean sea level. Abnormally high tides associated with storm events and their accompanying heavy rains caused this area to flood frequently. Six very large stormwater pumping stations, each equipped with as many as eleven large Flygt electric submersible propeller pumps provide protection for the people and property of the area, which is one of the leading commercial seaports of the southeastern United States... |
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| Featured Downloads |
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| TRITON Engineering Product Testing Report |
| The goals of this field load test project were to determine if the installed TRITON chamber structures can support H-20 truck loading; record the vertical stress generated by the live load at the top of the buried chamber structures and deformation responses of each chamber structures due to the live load; and investigate possibly the load carrying capacity and the failure mode of the chamber structures installed in the ground... |
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| Brochure: Landlok Erosion Control Blankets |
| Unlike loose fiber mulches, Landlok gives your project dimensional stability, locking seed and soil in place and protecting seedlings to promote faster vegetation growth and a stronger root system... |
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| Datasheet: Flo-Gard Dual Vortex Hydrodynamic Separator |
| The FloGard Dual-Vortex Hydrodynamic Separator provides enhanced gravity separation of suspended stormwater pollutants in a compact configuration...
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| Video: xpswmm Modeling
Software |
| xpswmm is a comprehensive software package for modeling stormwater, sanitary and river systems.
It simulates natural rainfall-runoff processes and the performance of engineered systems that manage our water resources...
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Stormwater
and Erosion Control Product and Service Guide |
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BayFilter |
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 BayFilter consists of a vault into which cartridges housing cylindrical spiral-wrapped layered filter fabric, containing a mixed silica/sand media, are vertically situated. The unique spiral configuration facilitates influent flow over the entire surface area and allows for highly effective pollutant removal at a maximum flow rate of 30 gallons per minute...
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PuriStorm Stormwater Treatment System |
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 The PuriStorm Stormwater Treatment System provides primary treatment of stormwater using locally available precast vaults in conjunction with Environment 21 Media Packs. The PuriStorm is designed to retain the most challenging pollutants—including TSS, phosphorus, hydrocarbons, and metals...
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ecoStorm plus Stormwater Filtration System |
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 By using various physical and chemical processes, the ecoStorm
plus Stormwater Filtration System effectively removes both solids and dissolved substances, including: heavy metals, hydrocarbons, and nutrients...
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Inlet Stormceptor |
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 The Inlet Stormceptor takes the place of a traditional inlet structure in a storm sewer system. The Inlet Stormceptor is ideal for small drainage areas, such as truck loading bays, electrical transformer stations, and vehicle refueling stations...
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StormCAD - Storm Sewer Design And Modeling Software |
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 StormCAD is a comprehensive modeling software program for the design and analysis of storm sewer systems. It provides calculations for catchment runoff, gutters, inlets, junctions, pipe networks, and outfalls...
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FloGard Perk Filter |
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 The Perk Filter has been developed to address those filtration situations where increasingly higher levels of pollutant removals are being mandated today in urban developments. The Perk Filter captures and retains sediment, oils, metals and other target constituents close to the source and reduces the total discharge load...
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xpstorm Stormwater Design Software |
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 xpstorm generates flow hydrographs, flood levels, pollutant loads or concentrations and analyzes water quality control devices. The software offers all the commonly accepted methods for generating stormwater runoff and is capable of modeling and comparing multiple storm events...
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HYDROVEX IHV Euro-Type Vortex Flow Regulator |
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 HYDROVEX IHV Euro-type vortex flow regulators are designed to perform dynamic flow regulation. They find their application in Stormwater, Combined or Sanitary Sewers. They are installed at the outlet point of drains, retention tanks, Storm outfalls, etc...
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Propeller Pumps |
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 The PL-7000 series of propeller pumps from Flygt are installed in vertical discharge columns the superior choice for pumping very large volumes of water at relatively low heads. The backward-swept, high efficiency blade design in this series provides for a self-cleaning propeller and consistently high efficiency...
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Free Structural Storm Water Quality BMP Manual |
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 National Pollutant Discharge Elimination System is faster, easier and more efficient than ever before thanks to Propex's Structural Storm Water Quality BMP Manual—the industry's most comprehensive storm water management resource...
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