michael toft;1833179; said:It is impossible to cite a controlled trial on Biohome for the following reason.Commercial recurculatory fish farming companies do not share information with each other in the way hobbyists do...nor do they share it with us.We have been allowed to see fish farming systems with huge stocking levels but we are not allowed to see the filter set up. it was a huge trickle tower way over 20ft high with a tonne of Biohome in there somewhere, not the kind of thing you could replicate even if we did know how it worked.The kind of controlled trials you mean are those carried out for "potable" drinking water where the results have to be available for public scrutiny when its a commercial venture they share nothing !how they achieve the required contact time between water and media is simply build a huge trickle tower that takes 12-15 mins for the water to flow through, on a koi pond if a trickle tower/bakki shower style set up is built aim for around 50 galls a hour, give it time and you will get results.
please see Aquacultural Engineering
Copyright © 2008 Elsevier B.V. All rights reserved
this is the journal of aquaculture filtration..... many great articles on secret systems and current denitrifcation research topics.
all classical denitrification systems are feed either carbon ( methanol,ethanol, sugars or starch) or sulfur.
biohome and bakki showers are not feed at all.
does anyone have a clue as to the process which removes nitrates ???

