DIY Sulphur Denitrifier

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[Robert M.]

I have finished converting my recent club made phosban reactor into a nitrate reactor. The pump I used is a maxi jet 400, and the media is sulphur and calcium carbonate. The unit takes a couple of weeks to cycle and then it will start removing nitrates from my tank. I started with nitrates of 50 ppm. I will post some updated numbers in about 3 or 4 weeks when I see results.

Thanks again to all those that made the club meeting reactor project possible.

[Rico]

Robert,

That looks interesting, where did you find the information on what media to use? and where did you find the media?

Thanks
Rick

[Robert M.]

I did a pretty exhaustive search on the web and read everything I could on sulphur denitrification. I bought my sulphur from www.midwestaquatic.com. My design is copied from the one that Midwest Aquatic sells and the Korallin BioDenitrator. The smaller of those retail units treat 50-250 gallons. They use about 5 lbs of sulphur. My unit is 1/5th the size, which should work fine on my 58 gallon tank, and it uses 1 lb of sulphur. I have adjusted my drip rate accordingly. I ran the unit wide open for 24 hours to establish the bacteria. Then I set the unit to drip 1 drop every 5 seconds for the next 72 hours. I now have it set to 3 drops every 5 seconds. As of yesterday the effluent was already reading 2.5ppm.

Robert

[angelscrx]

Wow that is pretty neat.  I can't wait to see what it does in a couple of weeks.  Keep us posted and thanks for sharing!

[Robert M.]

Here is an update on how my nitrate levels have changed since the addition of the nitrate reactor.

04/25/07 50 ppm
05/01/07 25-50 ppm
05/16/07 10-25 ppm
05/27/07 2-5 ppm

[Rico]

Robert,

That is great news.  Thanks for sharing your results with us.  Hopefully if someone else is experiencing a high nitrate issue, you can help out. You have sure taken care of your nitrates.

How about some pictures of your tank.  All we have seen is the sump.

Thanks
Rick

[Robert M.]

[angelscrx]

Very nice man very nice.