Does anyone run a BioDenitrator?

[Mitch#3]

They are referred to as SLAD reactors, old school wastewater treatment
For all the basic info on SLAD reactors and wastewater you should try this web site

http://mtac.sws.uiuc.edu/mtacdocs/fi...inalReport.pdf

They are easy to build, and in terms of aquarium literature try

Here

http://mars.reefkeepers.net/USHomePa...torSoufre.html

Here

http://mars.reefkeepers.net/USHomePa...Denitrator.htm

And here for a DIY design (which I would modify per my comments below)

http://mars.reefkeepers.net/USHomePa...ionSoufre.html



For a discussion of its use in aquariums try this link
http://aqualinkwebforum.com/eve/ubb....2/m/3536050522

The SO4 build up is not as much a problem as you would think given that levels of sulfur in mixes are lower than sulfur levels in seawater.

Mix the sulfur and the limestone (Aragonite) in a column followed by a pure aragonite column. The mix in the first chamber helps keep the ph up throughout the "sulfur" column (low ph reduces denitrtrfication rates)

Hope this helps