Does anyone have a drawing or can guess what the drawing would look like - explaining the water flow course as it goes up and down through the various filters in this Dura-flow all in one radial flow filter ?
Go to Recirculating Aquaculture System websites. There are many names but the original one back in 1998 came from University of Florida. If my memory is still working I believe it was called Tangential Flow Bubble Bead filtration system. I actually tried to imitate the design using DIY materials but was disastrous. I don’t recommend it because it requires continuous electrical consumption resulting in higher operating costs. The risk of anaerobic conditions will be high if the collected detritus is not purged regularly.
I encourage today’s aquaponic designers to focus on minimizing energy requirements so that we will have more success stories than failures.
Apologies I did not answer your question directly. TFF are supposed to separate settleable solids using tangential flow of water allowing the heavier solids to settle at the centers. Aeration is introduced to dislodge caking of the plastic beads and introduce dissolved oxygen.
The video example is more of a bubble bead aeration type because the tangential flow of water is not visible and explains why it was called radial.
Watch out for increased levels of soluble solids if you will follow either TFF or radial flow. Disturbing the biological media beds is not recommended because it will require higher levels of dissolved oxygen.
Thanks ,
I found what I think that filter is based on - inspired by the nexus brand filter I believe.
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What would you recommend being the most reliable and performance driven filter setups for aquaculture ?
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If the general consensus is still a system where the water flow goes : fish > settler container > bio container > plants > back to fish…
…. is it possible to have a mineralization tank in that line somewhere ( not decoupled ) so you don’t have to drain sludge into a bucket and then manually dump it into a separate mineral tank ?
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