All about Denitrator

Originally Posted by alanng

oh.. ok. so if i intend to DIY, i get a cylinder, with 2 pumps. 1 pump is to generate cycle inside the cylinder and another pump is to draw water from the main tank into the cylinder. fill the cylinder up with bioballs and and deniball.

if there any point i need to take note?

Test kit especially NO3 n NO2.

Strong rotten egg smell even if there is a stream of water comming out of denitrator - alot more than 2 -3 drops per second? should i still put this in the tray where there is GAC that leads to my sump?

Originally Posted by Repz

Strong rotten egg smell even if there is a stream of water comming out of denitrator - alot more than 2 -3 drops per second? should i still put this in the tray where there is GAC that leads to my sump?

Let it run for half n hour or so. If smell still persist, increase the output gradually. Yes, you should put it why the GAC is located. Aerate the return sump strongly.

Thank you so much bro Atom for all your help, i will let it run in a different container for 30 mins then i will test the output of the line for nitrate. if the smell occurs I will increase the flow rate.

sounds easy enough to me.

Thanks again!

[alanng]

just to clarify, for the pump to cycle the bioballs in the cylinder, does it have to be strong? what is the ratio of bioball to demiball?

Originally Posted by alanng

just to clarify, for the pump to cycle the bioballs in the cylinder, does it have to be strong? what is the ratio of bioball to demiball?

Depending on how much anearobic activity you wanted. Normally 1:8. As for the re-circulation, the flowrate is low.

One more quick question...
If i have GAC in a container (which is placed in the sump) and the outlet is leading to the container. If there is a small egg smell at the output of the denitrator... is it still okay to let it run into the sump?

The GAC will remove any remaining hydrogen sulphite right?
So in theory there would be no harm in me leaving the denitrator on...

Originally Posted by Repz

One more quick question...
If i have GAC in a container (which is placed in the sump) and the outlet is leading to the container. If there is a small egg smell at the output of the denitrator... is it still okay to let it run into the sump?

The GAC will remove any remaining hydrogen sulphite right?
So in theory there would be no harm in me leaving the denitrator on...

No problem. You suppose to leave the output on. For added precaution, aerate the sump.

[alanng]

Originally Posted by atom

Depending on how much anearobic activity you wanted. Normally 1:8. As for the re-circulation, the flowrate is low.

ok is it the more demiballs, the better? possible to get a Fuild reactor and DIY?

Originally Posted by alanng

ok is it the more demiballs, the better? possible to get a Fuild reactor and DIY?

Yes, you can use a fluid reactor. As for too many deniballs, you will get the system choke up very fast.