Customized Biofilter Aquaculture Ras Pond Biological Bio Filter System ...

Z.K.AQUA BOX- Biological filter is a specially designed multichamber filter for koi ponds , aquaculture systems and big aquariums. A Protein Skimmer or UV sterilizer can be connected. Features: 1.The filter is made of UPVC to ensure a long service life. 2.Compact structure, big water flow. 3.For each chamber different filter materials can be ...

Biofilters and MBBR (Moving Bed Biofilm Reactor) systems are the biological core of modern Recirculating Aquaculture Systems ( RAS ) and advanced aquaponic and aquaculture facilities. These systems convert toxic nitrogen compounds—primarily ammonia (NH₃/NH₄⁺) and nitrite (NO₂⁻)—into less harmful nitrate (NO₃⁻) through nitrifying bacteria. Reliable biological filtration ensures ...
Biofilter in RAS

In a Recirculating Aquaculture System ( RAS ), the biological filter ( biofilter ) is essential for converting toxic ammonia (from fish waste) into less harmful nitrate through the nitrogen cycle.
RAS capital costs are 5-10× higher than pond systems but offer year-round production and biosecurity advantages. Sources Timmons, M.B. & Ebeling, J.M. (2013). Recirculating Aquaculture , 3rd edition. Ithaca Publishing. Malone, R.F. & Pfeiffer, T.J. (2006). Rating fixed-film nitrifying biofilters used in recirculating aquaculture systems .

Aquaculture Filters & RAS Filtration Systems
AST has spent over two decades engineering aquaculture filter systems for RAS operations around the world. Our bead filter technology combines mechanical and biological filtration in a single vessel, giving you a simpler, more reliable water treatment loop with fewer components to manage and fewer points of failure.
How to design efficient biological filtration for aquaculture ? We offer complete solutions based on filter media, biological tanks, and aeration systems .

PR Aqua
Pioneering Aquaculture As the leading experts in Recirculating Aquaculture Systems ( RAS ) in the United States and Canada, we specialize in crafting tailored, integrated solutions for water treatment and fish handling, with a strong focus on RAS technology. We deliver custom-engineered and modular solutions that optimize every aspect of fish farming—from bio -planning to advanced water ...
Our expert team provides customized RAS design and installation solutions tailored to your business needs. We conduct detailed planning on equipment selection, water quality management, and facility layout to ensure optimal performance. Comprehensive system setup includes filtration, aeration, and temperature control, creating the perfect environment for your aquaculture operations.

AST Filters
Aquaculture Systems Technologies offers robust, reliable filter solutions for fish hatcheries & aquaculture projects. 20+ years of aquaculture experience.







