Dual Vortex Separator
The Dual Vortex Separator (DVS) is a hydrodynamic stormwater treatment device used to remove pollutants from urban runoff and provides enhanced gravity separation in a compact configuration.
The DVS offers an innovative and economic alternative for BMP implementation in new and retrofit applications where space is limited and effective stormwater treatment is required. The DVS unit can be used to help meet TMDL requirements for removal of solids, trash, debris, and petroleum hydrocarbons. The unit can also be a critical component of a comprehensive LID strategy to help increase the service life of infiltration, detention, and retention systems as well as other stormwater treatment BMPs.
Dual Vortex Separator performance has been verified by the New Jersey Corporation for Advanced Technology (NJCAT), one of the most comprehensive, rigorous, and recognized verification programs in the United States, and is approved by the New Jersey Department of Environmental Protection (NJDEP). The DVS is approved for online application by NJDEP. This can eliminate the need for a separate high flow bypass structure upstream of the unit thereby reducing project costs.
How it Works
Particle settling is enhanced by centrifugal forces induced by circular flow patterns in the twin vortex chambers and an extended flow path which maximizes hydraulic residence time. Settled solids are collected in an isolated storage area at the bottom of the structure, while floating trash, debris, and petroleum hydrocarbons are retained behind baffles that contain the vortex chambers. During peak runoff events, flow in excess of design treatment flow overtops the bypass weir and exits the system without entering the treatment chambers to interrupt the treatment process or re-entrain captured pollutants.
Dual Vortex Separator – Product Specifications
The Dual Vortex Separator (DVS) offers an innovative and economic alternative for BMP implementation in new and retrofit applications where space is limited and effective stormwater treatment is required.