Yes but if you pack the tube with something that has the capacity to support a ton of aerobic bacteria, lets say sintered glass, could you potentially increase the flow rate through the unit?Flash;2556387; said:Large tubing doesn't work. The whole point of this thing is to have it just trickle through the denitrator, at around 1-2 drops per second. If it goes too fast, it will not starve the water of oxygen to kill the nitrates.
Flash;2556387; said:Large tubing doesn't work. The whole point of this thing is to have it just trickle through the denitrator, at around 1-2 drops per second. If it goes too fast, it will not starve the water of oxygen to kill the nitrates.
I am also basing my plans for a denitrator on this same idea. I don't think drop per second will make any difference with the water volume I have so it will have to be in the count of gallon/s per hr. drip rate. I have lots of leftover 4" pipes (I'll probably use 5') and 1K' air tube. air tube will be coiled outside the pipe though. Right now I am seeding my 200++ pcs of scrubbies that will go inside the 4" pipe. will probably start building it late january.aglarond;2556748; said:Yes but if you pack the tube with something that has the capacity to support a ton of aerobic bacteria, lets say sintered glass, could you potentially increase the flow rate through the unit?
A tube by itself can't support very much aerobic bacteria at all, so the flow rate has to be slow to support the removal of oxygen. A tube filled with media would be a million billion times better able to support aerobic bacteria and would therefore deoxygenate the water faster.
Let's say 75' of tubing is X amount of aerobic bacteria. 750' tubing is therefore 10 times that amount. If you had 750' could you increase the flow rate by 10 times? The flow rate through 7500' could be increased 100 times?
More aerobic bacteria to support deoxygenation, more potential flow through the unit, yes or no?
arl;2561298; said:I am also basing my plans for a denitrator on this same idea. I don't think drop per second will make any difference with the water volume I have so it will have to be in the count of gallon/s per hr. drip rate. I have lots of leftover 4" pipes (I'll probably use 5') and 1K' air tube. air tube will be coiled outside the pipe though. Right now I am seeding my 200++ pcs of scrubbies that will go inside the 4" pipe. will probably start building it late january.
I'm not sure how much of an advantage seeding the scrubbies will have. It might be better to just let the thing evolve once in use. If you seed them they will be colonized with aerobic bacteria. As soon as the unit comes into use a lot of them will probably die due to the promotion of an anaerobic environment. I don't know if a mass die off like this would have any negative effects.arl;2561298; said:I am also basing my plans for a denitrator on this same idea. I don't think drop per second will make any difference with the water volume I have so it will have to be in the count of gallon/s per hr. drip rate. I have lots of leftover 4" pipes (I'll probably use 5') and 1K' air tube. air tube will be coiled outside the pipe though. Right now I am seeding my 200++ pcs of scrubbies that will go inside the 4" pipe. will probably start building it late january.
The scrubies will go in to the 6" D maybe 3' long pipe for the earobic chamber. I just thought that you will first need earobic bacteria inthe front chamber first before you even get any enearobic bactrial in the thin long tube. With the earobic chamber already seeded you'll be halfway (or even better) through your denitrator cycling. I am not ready to build the denitrator yet anyway and having extra biofiltration wouldn't really hurt my sump. I remember reading somebody doing it this way and he got 0 nitrates in the output in a just week!aglarond;2566617; said:I'm not sure how much of an advantage seeding the scrubbies will have. It might be better to just let the thing evolve once in use. If you seed them they will be colonized with aerobic bacteria. As soon as the unit comes into use a lot of them will probably die due to the promotion of an anaerobic environment. I don't know if a mass die off like this would have any negative effects.
If you coil it around the outside (much easier than the OP!) make sure that you black it out with some paint or something so that no algae will grow and clog it.
I'm definately trying this too though. I read through johnptcs post and it gave me hope. I think that with enough biomedia present an anaerobic environment can be acheived with higher flow rates than just a drip.