Quote:
Originally Posted by HighlandReefer
... FWIW, most tests completed in aquarium environments have used these biopellets in sand beds and achieved good results as long as they are replaced about every 6 months. This may have advantages since the sand itself is used to form additional space for bacterial bio-films to develop. In the tests completed they found that a mixed sand bed with more porosity provided the best results. Perhaps a combination of using the sand bed technique as well as the reactor may provide the best results. A lot a questions in my mind as to how we implement the use of these various biopolymers. There have been studies in waste water where providing additional acetate has greatly benefited the brake down of the polymers which incorporate starch in the molecule.
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I wonder two things... for starters, what if we jammed pellets of PCL or PHA into the sandbed? Would that work? Also does this back up the theory behind of the IO Nitrate Reducer? In my experience with it, it swirls around in the tank until it settles into the sandbed and little crevices in live rock.
And another question, really how effective are solid OCD methods at reducing phosphate? If i'm running a reactor with GFO, could I really just toss it and go with solid OCD?