DIY Sulfur Denitrator

Status
Not open for further replies.
ok i will put it as much more today as i can... i saw that on page 14 but since i used bio matrix i thought the ratio was a little difference...
 
Last edited:
I think it is time for me to make one mine is to small can't get down below 10 I have 385 gallon total how much sulfur should I use? right now I have the Korallin BioDenitrator S-1502
 
COuld I ise Uniseals on this? I think it will make it easier for me. I am ordering some extruded acrylic from US plastics for the project. My total water volume is around 340 gallons so how much sulfur? Nitrates are at 10ppm right now
 
richierich2000 and skippyreef:

Check out page 14 for some guidelines regarding amount of sulfur to use, flow rates and iniital settings.

Demeter:

There's lot of people on this thread who have made denitrators out of acrylic and posted really good pics. Check it out!

HTH,
djfrankie
 
Well your all's advice as worked well for me so I thought I would finally throw my hat into the ring.

Here's my reactor, made from a old Deltec Calcium Reactor. Can't tell you how many liters of Suplhur media it is but its 5kg worth.
DSC_0004-3.jpg


My nitrates were between 75-100ppm a little over a month ago in my 336g tank and 550g system. Reason for this is that I had just purchased the tank 5 months ago and the previous owner didn't do a water change in 2 years. I can only assume that the LR was leaching nitrates.

I started using AZ-NO3 which dropped my nitrates down to 25ppm but started to climb again almost immediately after stopping the treatment. Starting out the reactor at 1DPS (thanks to all the advice read here and else where) and now up to a steady stream. My nitrates have dropped down to 5ppm and are still dropping.

BTW I run the effluent through a .75L acrylic reactor with ARM and Magnesium chips. Know it probably should be bigger but seems to be working well for now.

Anyways, thanks for all the advice. A very efficient way of dealing with this problem.

Now all I need to do is figure out how to balance out the reactor once I reach 0.
 
I just cant get over 1dps./.... i have 1/2 gallon of sulfur and 4 L of bio matrix.. and anything more than 1 or 2 dps nitrates go way up.. and i get TONS of gas build up... ggggrrrrr
 
ya in the reactor.. the display they stay the same around 60-70.. reactor 0 then if i up it after a few days they are up to like 10-20.. so then i slow it back down... so we shall see.. nitrite is 0
 
Couple questions guys. My nitrates are testing at about 75-100 PPM. I have tried most solutions and after little to no positive results, I have been looking into a denitrator. Do you think its "worth" it on a 40 gallon and what, if any, are downsides of converting a small phosban reactor into a denitrator. Any advice would be greatly appreciated.
 
<a href=showthread.php?s=&postid=12469360#post12469360 target=_blank>Originally posted</a> by Black71gp
I just cant get over 1dps./.... i have 1/2 gallon of sulfur and 4 L of bio matrix.. and anything more than 1 or 2 dps nitrates go way up.. and i get TONS of gas build up... ggggrrrrr


Here's my opinion for what it's worth.

Midwest Aquatics http://www.midwestaquatic.com/products.htm

Use's 3lb's of sulfur for a reactor that's good for up to 250 gal
" " 5lbs "" "----------------------------------------up to 500gal

Your reactor:
1/2 gal. sulfur (4lbs) up to 300+ gal.
4 litter's of Matrix (8 lbs. 7 oz.) ?? gal. but sounds like a lot.

I believe that the Matrix is cycling a lot faster than the Sulfur, & is the problem with your reactor. JMO, but I think you are using too much of the Matrix. most of the reactor's ( diy ~ commercial) are just using the sulfur & the ARM media only. unless you have a HUGE volume of water ( Public Aquarium ) I would consider removing the Matrix, or cut it down drastically below the sulfur amount.

I have been following this thread for some time now, & I see that you are having a lot of issues with cycling your reactor.

I am no expert on these reactors, but I know what has worked for me with my smaller one. The principals of them are all the same, just different amounts of media per volume of water, per size of reactor.

Food for thought :rolleye1:

Just My $.02

Steve

:smokin:
 
<a href=showthread.php?s=&postid=12506940#post12506940 target=_blank>Originally posted</a> by Solitaryensis
Couple questions guys. My nitrates are testing at about 75-100 PPM. I have tried most solutions and after little to no positive results, I have been looking into a denitrator. Do you think its "worth" it on a 40 gallon and what, if any, are downsides of converting a small phosban reactor into a denitrator. Any advice would be greatly appreciated.

Yes it's worth it. my 50 gal. is running smooth :D
with a smaller Phosban conversion reactor ( "Lit'll dj")
PM me for the info. if you want.

As always "Kudos" to djfrankie

Steve

:smokin:
 
Getting ready to build mine next week after the Uniseals arrive. I bought the flanges for the top from MRC to save having to fabricate them myself which would have taken me a while to do. The tubing is 24 inches tall *6"OD. The tank is 270 gallons with 112 gallon sump. I estimate after live rock is subtracted and the sump is considered I have roughly 350 gallons of water. Nitrates tested somewhere between 10-25ppm on a salifert kit tonight.

As far as a pump I am considering an Eheim. I think that with the height of the reactor I should be able avoid a second pass chamber. I am thinking of getting the media from Premium Aquatics for this project I just need to know how much to get. If I am thinking correctly I need something like 3.5 gallons for my tank and the rest of the chamber I can fill with large CA reactor media correct. What are you guys using for the pad between the sulur and the Reactor media?

newstart010.jpg
 
Operational Question...

Operational Question...

How does the acid production affect the process? I am wondering if it would be better to have the Carbonate media only in the effluent, rather than inside the recirculating unit.

Does the acid production make the unit turn sour faster, or do the bacteria "work" better in the lower pH environment? Would the unit process Nitrate slower or faster at lower pH?

This may have been covered before, I just want to be sure I fully understand the proccess to build a great reactor:)
 
i have been following along alittle at a time. have anyone made any improvements?
what is the stanard recirc and feed pump being used?
i have a120 gal tank and my trates are out of control!! going to lowes tomorrow!
 
Hey Skippyreef,

where did you source your acrylic tubing from? Say hi to Ypsi for me, I used to live in Canton :)
 
Status
Not open for further replies.
Back
Top