所有Filterra系统的核心是Filterra engineered media; a specified gradation of washed aggregate and organic material homogeneously blended under strict quality controlled conditions. The filter media has been optimized to operate under high flow rates (up to 175 inches/hour) while maintaining pollutant removal performance. Filterra media is tested for hydraulic functionality, fertility, and particle size distribution to ensure uniform performance.
| MEASURED POLLUTANT REMOVAL PERFORMANCE |
| Pollutant |
Median Removal Efficiency |
Median Effluent Concentration (mg/L) |
Third Party Reference Studies |
| Total Suspended Solids |
86% |
3.3 |
UVA 2006, Herrera 2009, Herrera 2014, NC State 2015 |
| Total Phosphorus (TAPE) |
70% |
0.05 |
Herrera 2014, NC State 2015 |
| Total Nitrogen |
34% |
0.54 |
NC State 2015 |
| Total Copper |
55% |
0.004 |
UVA 2006, Herrera 2009 |
| Dissolved Copper |
43% |
0.003 |
Herrera 2009 |
| Total Zinc |
56% |
0.04 |
UVA 2006, Herrera 2009, NC State 2015 |
| Dissolved Zinc |
54% |
0.1 |
Herrera 2009 |
| Total Petroleum Hydrocarbons |
87% |
0.71 |
Herrera 2009 |
Information above is based on results from third party field studies following industry recognized protocols such as TAPE and TARP. Relevant studies are noted for each pollutant, and corresponding data was aggregated to provide realistic and repeatable performance expectations.
Some jurisdictions recognize higher removal rates - see your Contech Stormwater Consultant for performance expectations.
Select Filterra Approvals
Filterra is approved through numerous local, state and federal verification programs, including:
- New Jersey Department of Environmental Protection (NJ DEP)
- Washington Department of Ecology (GULD) – Basic, Enhanced, Phosphorus, and Oil
- Maryland Department of the Environment - Environmental Site Design (ESD)
- Texas Commission on Environmental Quality (TCEQ)
- Virginia Department of Environmental Quality (VA DEQ)
- Maine Department of Environmental Protection (ME DEP)
- Atlanta, GA Regional Commission
- Los Angeles County, CA - Alternate to Attachment H
- City of Portland, Oregon Bureau of Environmental Services
- North Carolina Department of Environmental Quality (NC DEQ)
Applications
- Low Impact Development, Green Infrastructure, and Environmental Site Design
- High pollutant removal requirements
- 新建筑和城市改造
- Pretreatment for above-ground or shallow below-ground storage
- Shallow, decentralized treatment
