New Jersey DEP grants Final Field Certification for Hydro Int'l Up-Flo Filter

After demonstrating pollutant removal that met or exceeded the requirements of the Technology Acceptance Reciprocity Partnership field testing protocol, Hydro International's Up-Flo Filter has resulted in Final Field Certification from the NJ Department of Environmental Protection.

Hydro Up Flo Filter Vault Configuration

Feb. 17, 2015 -- After demonstrating pollutant removal that met or exceeded the requirements of the Technology Acceptance Reciprocity Partnership (TARP) field testing protocol, the Up-Flo® Filter from Hydro International, a supplier of water, wastewater and stormwater treatment and control technologies, has resulted in Final Field Certification (FFC) from the New Jersey Department of Environmental Protection (NJDEP).

The conditions of the FFC allow the Up-Flo Filter with CPZ Mix™ filter media to be used to treat up to 0.056 CFS (25 GPM) per filter module with a maximum inflow area of 0.66 acres per filter module. The FFC improves upon the Interim Certification first issued by the NJDEP in December 2009, which approved the Up-Flo Filter to treat up to 0.045 CFS (20 GPM) per filter module with a maximum inflow area of 0.3 acres per filter module.

Hydro Up Flo Filter Vault Configuration
Hydro's Up-Flo Filter Vault Configuration


The field testing was conducted on an Up-Flo Filter installation along the Tuscaloosa Riverwalk in the city of Tuscaloosa, Ala., an area known for its intense rainfalls and clayey soils. Sampling and analysis were conducted independently by the University of Alabama's Civil, Construction and Environmental Engineering department.

Over the course of the monitoring period, the Up-Flo Filter was subjected to a number of high-intensity storms and a very high pollutant loading. Overall, the Up-Flo Filter demonstrated 89-percent removal of total suspended solids (TSS), 98-percent removal of all suspended sediment and 81-percent removal of suspended sediment with a mean particle size of 29 microns.

The Up-Flo Filter is available in a standard 4-foot manhole configuration, in a range of precast concrete vault sizes. Likewise, Hydro provides a free downloadable Up-Flo Filter Sizing Calculator to help engineers with sizing the correct filter for each application and dedicated technical team to offer additional support.

See also:

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"Grit Removal Installation at SC Pollution Control Plant Improves Clarifier, Digester Operation"


About Hydro International

Hydro International provides cost‑effective solutions for controlling the quantity and improving the quality of water with minimal maintenance. Developed over more than 30 years of research and development, many of Hydro's award-winning solutions in the water, wastewater and stormwater sectors are based on sustainable vortex technologies. Hydro Americas' Stormwater division is headquartered in Portland, Maine. For more information, visit www.hydro-int.com/us.

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