ROUZAN VILLAGE LAKE ABS TREATMENT SYSTEM
Baton Rouge, Louisiana
Stormwater Treatment
Owner: Engquist Rouzan Commercial, LLC
Engineer: SJB Group and Green Earth Operations
Installation: June 2020
Technical Description:
ABS Media
ABS Orifice Control System
SWIG designed and engineered a 12,800 square foot Advanced Bioretention System (ABS). Containing 950 cubic yards of patented ABS media. The system is designed to treat stormwater from 9.5 acres of urban development. Since this runoff is the sole source of inflows entering a 2-acre lake, it has to be treated to a very high level of phosphorus (P) removal. The ABS media is formulated to discharge very low P concentrations for half a century. The system also has the patented ABS outlet, which extends retention time to improve nitrogen retention.
During dry periods, a 420 gpm recirculation system will pump lake water and through the ABS to maintain water quality and low P concentrations. This will also constantly sub-irrigate the ABS landscaping. As a result, the landscaping will be lush, while the lake will remain very clear, providing a first-class amenity for the residents.
Updates:
10/23/2020
The Rouzan Advanced Bioretention System (ABS) has been planted with local wetland species. This is the first operational ABS in Louisiana and will play an important role in reducing nutrient loads in urban waterways. In parallel, this system will maintain good water quality in the project’s newly constructed pond.
06/30/2020 SWIG Completes Its' First Phosphorus Removal Project in Louisiana
Construction of SWIG's Advanced Bioretention System, a gravity-fed, media-based phosphorus removal system, was recently completed. The media bed will be planted with an array of native wetland species (in collaboration with Reich Landscape Architects) and treat incoming storm water for many years to come. The project was designed to protect water quality in the newly constructed Rouzan Village Lake during dry and wet weather conditions. It also demonstrates how innovative technology can be integrated into the landscape that meets both aesthetic and treatment requirements.
