2-Chamber Biofilter 2.8 m³ for RAS Systems

Maintaining stable water parameters is a critical requirement for modern aquaculture and closed water systems (CWS). The 2-chamber biofilter with a total working volume of 2.8 m³ is engineered for high-load applications where reliable biological filtration directly impacts stock health, growth rates, and system stability.

This model is designed for professional use in large recirculating aquaculture systems, ponds, and commercial aqua farms, where elevated levels of ammonia and nitrite must be treated continuously and efficiently.

High-Capacity Biological Filtration

The biofilter features a 1,600-liter active bio-media zone, allowing operators to combine different types of floating and fixed media for optimal bacterial colonization. This configuration ensures stable nitrification even under fluctuating biomass loads.

• Up to 800 liters of floating media for intensive ammonia conversion
• Up to 800 liters of fixed or textured media for long-term bacterial stability
• Designed for continuous operation in high-density systems

Durable Industrial Construction

The housing is manufactured from 10 mm thick food-grade polypropylene, offering long service life in demanding aquaculture environments. The material is resistant to moisture, aggressive water chemistry, and mechanical stress.

• Corrosion-free and chemically resistant body
• Safe for all fish and crustacean species
• Suitable for indoor and outdoor installations

Optimized Hydraulics and Aeration

To eliminate dead zones and ensure uniform flow through the biological media, the filter is equipped with four inlet and four outlet connections (Ø110 mm). This layout promotes even water distribution and stable biofilm performance.

An integrated aeration system with four disc diffusers (Ø270 mm) maintains high dissolved oxygen levels inside the chambers, which is essential for nitrifying bacteria and overall system efficiency.

How the 2-Chamber Biofilter Operates

1. Water enters the first chamber, where flow is stabilized and evenly distributed.
2. The second chamber performs biological treatment as beneficial bacteria convert ammonia and nitrite into less harmful compounds.
3. Aeration supports bacterial activity and prevents anaerobic zones.
4. Treated water exits through four outlets and returns to the system.

Application Areas

The 2.8 m³ biofilter is a versatile solution for a wide range of aquaculture applications:

• Large recirculating aquaculture systems (RAS)
• Commercial fish farms and hatcheries
• Crayfish and shrimp production facilities
• Sturgeon and trout farming systems
• Decorative and functional ponds requiring stable water quality

This biofilter is engineered for professionals who require predictable performance, scalability, and long-term reliability. It integrates seamlessly into modern aquaculture infrastructure and supports sustainable, high-efficiency production.