Description

Bio-Pac SF30 is an excellent solution for upgrading existing trickling filters by replacing traditional rock media to significantly enhance treatment plant performance. It is equally well-suited for new trickling filter installations. With over 300 air and water mixing points per cubic foot of media, Bio-Pac SF30 efficiently redistributes wastewater every 2 inches of media depth. This makes it particularly ideal for shallow trickling filters, providing superior treatment in compact systems. For larger towers, the Bio-Ring offers a reliable option. With a 7¼-inch diameter and a 2-inch height, this design includes concentric cylindrical sections, internal ribs, and a robust outer wall to prevent element occlusion. Drawing from the Cascade Mini-Ring concept, the Bio-Ring has become the industry standard for random packing used in trickling filters, offering efficient and effective performance. Cascade Bio-Media, made from polypropylene, is highly versatile and used in both partial and complete trickling filter processes. Available in various shapes and sizes to meet specific customer needs, these rings are fully submersible in growth reactors. Their design provides an optimal surface area for biomass development while allowing unwanted materials to pass through effectively in tower systems.
Specification of SF30 Bio-Ring Media

Advantages of SF30 Bio-Ring Media
Cascade Bio-Rings stand out for their impressive separation efficiency and high capacity. Compared to other bio-media, they offer superior performance and are an excellent choice for wastewater filtration processes. Beyond filtering, Cascade Bio-Media delivers multiple advantages to internal tower systems, including:
- Easy installation
- Low aspect ratio for space efficiency
- High resistance to corrosion
- Cost-effective solution
- Minimal pressure drop
- Strong outer construction for durability
These bio-media devices are simple to maintain and help foster the growth of beneficial bacteria. Over time, the bio-rings collect unwanted material as liquid flows through, but maintenance remains straightforward. Occasional monitoring is recommended, and when necessary, the rings can be rinsed in water to remove buildup without scrubbing, preserving the helpful bacterial coating on the surface. Even if the bio-rings appear slightly unclean after rinsing, they continue to function effectively as long as water can flow through them freely.
Product Advantages:
- Low pressure drop
- Reduced mass-transfer unit height
- High flooding point
- Lightweight design
- Uniform gas-liquid contact
Bio-Pac SF30 and Cascade Bio-Media represent cutting-edge solutions for improving wastewater treatment processes, combining efficiency with ease of use and long-term durability.
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