Bio-Pac - SF#30 - Media for Trickling Filters

Bio-Pac SF#30 is ideally suited for either replacing rock in existing trickling filters to improve treatment plant performance or for installation in new trickling filters.

Media Characteristics:

• 30 ft2/ft3 surface area
• 95% void ratio
• Manufactured of UV stabilized polypropylene
• Low installation cost
• Excellent for BOD reduction or nitrification
• Low minimum wetting rate, 150 gpd/ft2
• For bed depths up to 30 ft.

Bio-Pac SF#30 random dump media is successfully operating in over 100 trickling filters. With over 300 mixing and redistribution points for both air and water per cubic foot of media, Bio-Pac is capable of redistributing wastewater every 2” of media depth. This feature makes Bio-Pac ideal for shallow trickling filters.

Bio-Pac SF#30 has also been used extensively in upflow anaerobic and aerobic submerged bed reactors. Since the media floats, use of an underdrain support is eliminated. Furthermore, Bio-Pac’s unique shape serves as a foam breaker when installed in anaerobic reactors.

Jaeger Environmental has been manufacturing trickling filter media since 1979 and has hundreds of installations worldwide.

Typical Bio-Pac SF#30 Trickling Filter Section

N-Dec Random Media Underdrain

N-Dec is manufactured of HDPE including carbon black to minimize ultra-violet degradation. The panels are strong and light weight, but flexible enough to allow self contouring to variations in the trickling filter floor. Having a 62% open area, N-Dec will provide un-impeded passage of air, wastewater, biomass and solids, virtually eliminating the risk of ponding or blockage. Each panel includes 9 intrinsic equally spaced legs. Each leg measures 6 1¼2 inches high, allowing space for treated effluent and air.