Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Stormwater Model To Inform Regulators On Future Development Projects

19.07.2010
North Carolina State University researchers have developed a computer model that will accurately predict stormwater pollution impacts from proposed real-estate developments – allowing regulators to make informed decisions about which development projects can be approved without endangering water quality.

The model could serve as a blueprint for similar efforts across the country.

“The model is designed to evaluate the amount of nitrogen and phosphorus found in stormwater runoff from residential and commercial developments – particularly runoff from a completed project, not a site that is under construction,” says Dr. Bill Hunt, an associate professor and extension specialist of biological and agricultural engineering at NC State who helped develop the model. “To comply with regional water-quality regulations, cities and counties have to account for nutrient loads,” Hunt says, “but the existing tools are antiquated and aren’t giving us sufficiently accurate data.”

The researchers developed the model using chemical, physical and land-use data specific to North Carolina and surrounding states. This allowed them to account for regional conditions, which will improve the model’s accuracy. “Because the model uses regional data, it could be modified easily for use east of the Blue Ridge Mountains in North Carolina and adjoining states,” Hunt says.

The model could also serve as a blueprint for similar efforts nationally. “The primary obstacle to applying this model outside North Carolina – in Florida or Colorado, for example – would be collecting relevant data from those areas and incorporating it into the model’s framework,” Hunt says. “The actual model itself would be fairly easy to modify.”

State and local government officials, as well as developers, can plug proposed development plans into the model and get an accurate estimate of the level of nutrients that would likely be included in stormwater runoff from the completed development site. This would give officials key data that they can use to determine whether a proposed development project should be allowed to move forward or require additional stormwater treatment.

The model was designed in response to state regulations limiting the amount of nutrients that can flow into Jordan Lake in central North Carolina. The regulations affect a host of North Carolina municipalities, including Durham, Greensboro, Chapel Hill, Cary and Chatham County.

In addition to its long-term applications elsewhere, the model will likely be used to help implement forthcoming stormwater treatment requirements for North Carolina’s Falls Lake Watershed.

The model will be unveiled July 23 at a workshop on stormwater controls to be held at NC State’s McKimmon Center on the university’s Raleigh campus. The model was developed by Hunt, NC State biological and agricultural engineering extension associate Kathy DeBusk, and Rich Gannon of the North Carolina Department of Environment and Natural Resources (NCDENR). The work was funded by a grant from NCDENR and was completed with assistance from the Center for Watershed Protection.

NC State’s Department of Biological and Agricultural Engineering is a joint department of the university’s College of Engineering and College of Agriculture and Life Sciences.

Matt Shipman | EurekAlert!
Further information:
http://www.ncsu.edu

More articles from Ecology, The Environment and Conservation:

nachricht Upcycling of PET Bottles: New Ideas for Resource Cycles in Germany
25.06.2018 | Fraunhofer-Institut für Betriebsfestigkeit und Systemzuverlässigkeit LBF

nachricht Dry landscapes can increase disease transmission
20.06.2018 | Forschungsverbund Berlin e.V.

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: First evidence on the source of extragalactic particles

For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.

To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...

Im Focus: Magnetic vortices: Two independent magnetic skyrmion phases discovered in a single material

For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.

Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...

Im Focus: Breaking the bond: To take part or not?

Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.

A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...

Im Focus: New 2D Spectroscopy Methods

Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.

"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....

Im Focus: Chemical reactions in the light of ultrashort X-ray pulses from free-electron lasers

Ultra-short, high-intensity X-ray flashes open the door to the foundations of chemical reactions. Free-electron lasers generate these kinds of pulses, but there is a catch: the pulses vary in duration and energy. An international research team has now presented a solution: Using a ring of 16 detectors and a circularly polarized laser beam, they can determine both factors with attosecond accuracy.

Free-electron lasers (FELs) generate extremely short and intense X-ray flashes. Researchers can use these flashes to resolve structures with diameters on the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Leading experts in Diabetes, Metabolism and Biomedical Engineering discuss Precision Medicine

13.07.2018 | Event News

Conference on Laser Polishing – LaP: Fine Tuning for Surfaces

12.07.2018 | Event News

11th European Wood-based Panel Symposium 2018: Meeting point for the wood-based materials industry

03.07.2018 | Event News

 
Latest News

Microscopic trampoline may help create networks of quantum computers

17.07.2018 | Information Technology

In borophene, boundaries are no barrier

17.07.2018 | Materials Sciences

The role of Sodium for the Enhancement of Solar Cells

17.07.2018 | Power and Electrical Engineering

VideoLinks
Science & Research
Overview of more VideoLinks >>>