মাছ চাষের জন্য ড্রাম ফিল্টার পুকুর অথবা ট্যাংকের পানি পরিষ্কার রাখতে এবং মাছ সুস্থ রাখতে সক্ষম।
The need for drum filter is immense for modern fish farming. Any indoor recirculating aquaculture system (RAS) requires water treatment through drum filters for fish farming. Drum filters must be used in commercial fish farming project.
Drum Filters for aquaculture farms are mechanical units which materialize an efficient, robust and reliable solution in the process of solid and organic matter separation and filtration. These automatic self cleaning microscreen filters are able to handle a wide range of flow rate and backwash, utilizing micron rates from 80μm up to 200μm. They are designed for high performance filtration in land based aquaculture water treatment systems such as crab and shrimp or any fish farms.
The Micro Screen Drum Filters are available with different configurations.
Available in two material types: Fiberglass (FRP) or Stainless Steel Super Duplex Frame. Advantages of drum filters in fish culture water treatment;
Wide range of flow rates: 1m³/h – 4000 m³/h or 4.4 gpm – 17611 gpm.
Osmosia Company is able to fulfill the drum filter needs of commercial fish farms in Bangladesh.
Most of the fish farming projects in Bangladesh need a drum filter of 10 ton per hour, 20 ton per hour, 30 ton per hour and 50 ton per hour according to capacity.
Drum filters for fish farming are able to keep the water in the pond or tank clean and the fish healthy.
In the rapidly evolving landscape of Bangladeshi aquaculture, efficiency is no longer just an option—it’s a necessity. Osmosia Water Technology stands at the forefront of this blue revolution, providing state-of-the-art Modern High-Density Fish Farming Drum Filters designed specifically for the unique environmental challenges of Bangladesh.
Whether you are implementing a Recirculating Aquaculture System (RAS) or looking to modernize a traditional high-density pond, understanding the role of a drum filter is the first step toward 30x higher yields.
What is a Modern High-Density Drum Filter?
A Rotary Drum Filter (RDF) is a mechanical, self-cleaning micro-screen filter designed to remove suspended solids—such as fish feces, uneaten feed, and organic debris—from water. In high-density environments where fish stocking rates are 20 to 30 times higher than traditional ponds, manual waste removal is impossible.
Osmosia Water Technology provides drum filters that act as the "kidneys" of your fish farm, ensuring that solid waste is trapped and flushed out before it can break down into toxic ammonia or nitrite.
Why Bangladesh Needs Osmosia’s Filtration Technology?
Bangladesh's aquaculture sector is shifting from extensive to intensive and super-intensive farming. However, three major hurdles persist:
Water Scarcity & Quality: Underground water levels are dropping, and many areas suffer from high iron and arsenic content.
High Mortality Rates: In high-density ponds, waste accumulation leads to rapid oxygen depletion and disease outbreaks.
Space Constraints: Farmers need to produce more fish in smaller areas to remain profitable.
Osmosia's Drum Filters solve these by maintaining crystal-clear water, reducing the need for massive water changes, and allowing for "Zero Discharge" farming.
Benefits of the Osmosia Drum Filter
A. Automated Self-Cleaning
Unlike traditional sand filters or sponge media that require hours of manual backwashing, Osmosia’s drum filters are fully automated. When the screen becomes clogged with waste, a sensor triggers the rotation of the drum and a high-pressure spray bar washes the waste into a discharge tray.
B. Superior Disease Prevention
By removing organic solids within minutes of their entry into the water, you drastically reduce the bacterial load. This minimizes the risk of gill rot, fungal infections, and parasitic outbreaks common in high-density Pabda, Gulsha, and Shing fish farming.
C. Enhanced Oxygen Efficiency
Dissolved oxygen ($DO$) is the most expensive "input" in high-density farming. Solid waste consumes oxygen as it decays. By removing this waste mechanically, the Osmosia Drum Filter ensures that 100% of your aeration energy goes to the fish, not to rotting sludge.
D. Durability in Local Conditions
Designed for the humid and often saline-heavy environment of Bangladesh, Osmosia uses corrosion-resistant materials. Their FRP models are particularly popular for their longevity and low maintenance costs in brackish water (shrimp/Vannamei) farming.
Applications in Modern Fish Farming
Recirculating Aquaculture Systems (RAS)
In an indoor RAS, the drum filter is the first line of defense. It protects the Bio-Filter (MBBR) from clogging. Without a drum filter, your K1/K3 media would become smothered in sludge, killing the beneficial nitrifying bacteria.
High-Density "Bottom Clean" Ponds
Osmosia specializes in Pond Bottom Cleaning Systems. By using HDPE Geomembrane liners and a central drainage point, waste is directed to an external drum filter station. This allows farmers to grow Tilapia, Koi, and Carp at densities previously thought impossible.
Biofloc Integration
While Biofloc relies on bacteria, "heavy" Biofloc systems often suffer from excess sludge. A bypass drum filter from Osmosia helps manage the Total Suspended Solids (TSS), keeping the "floc" at optimal levels for fish health.
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