Denitrators

Discussion in 'Chemical Filtration / Low Nutrient Systems - LNS' started by Ridwaan, 18 Jun 2007.

  1. Ridwaan

    Ridwaan

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    Hi guys...

    I have been looking at a Aqua Medic Denitrator That some one wants to sell to me..Its quite tall and has all this Bio balls inside...

    My question is....What other components, equipment do i need to be able to run this thing...

    Thanks
    Ridwaan
     
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  3. Smithers

    Smithers

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    You will need the controller for it. I think it is the Mv Controller. If you do not have one you can kiss your tank goodbye !
    The 'bio balls' are called Deniballs. Northlands pets has one or two running.
     
  4. Galibore

    Galibore Retired Moderator

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    Ridwaan, why not go the DSB route?
     
  5. Ridwaan

    Ridwaan Thread Starter

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    I do have a DSB....
    WOuld it be wise to run both the denitrator and the DSB?

    What does the MV controller do?
     
  6. Smithers

    Smithers

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    From the aquamedic site ...

    The mV Controller is designed for monitoring and controlling the redox potential (or ORP - oxidation-reduction potential) in aquaria. The unit has a broad controlling range from -500 to a +500 mV, and a measuring range from -1000 to +1000 mV. It can be used to control the supply of ozone in salt water aquaria and / or for the control of nitrate removal in anaerobic biological filters (Aqua Medic Nitratereductor). The unit is supplied with a BNC connection for an mV probe. The use of an original Aqua Medic plastic shafted electrode is recommended.
     
  7. Galibore

    Galibore Retired Moderator

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    I wouldn't be able to say as I am not familiar with this device.
     
  8. Copperband

    Copperband

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    Ridwaan I think its a case of whatever it takes to keep nutrients as low as possible.
     
  9. Mekaeel

    Mekaeel Moderator MASA Contributor

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    i was under the impression that a MV controller is to be used in conjunction with a CArx
     
  10. Alan

    Alan Admin MASA Contributor

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    Mekaeel a PH controller is used for a CArx, with regards to a nitrate reductor its up to you but it does not do anything more than reduce nitrates in a system by creating an anaerobic area for the denitrifying bacteria. The same is achieved with a DSB but with a DSB you have the advantage of bio diversity and is a totally natural reduction where nothing much can go wrong. With a nitrate reductor i have heard of horror stories where something goes wrong with the controller and the whole system is wiped out.
     
  11. Mekaeel

    Mekaeel Moderator MASA Contributor

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    yes alan,a PH controller is used on a CArx,which controller was it to test something to do with the CO2?
     
  12. Alan

    Alan Admin MASA Contributor

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    PH, as the more CO2 added the lower the PH drops.......sorry, dont think i follow here.
     
  13. Bob the (reef)builder

    Bob the (reef)builder

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    Mekaeel, a ph controller controls ph by adding controlled dosses of CO2 to lower and then keep pH at a certain level. This is used in a CArx to keep the Ph low enough to disolve the media in the reactor.

    A Nitrate reactor uses a MV controller to keep the redox levels low enough to remove Nitrates. if it goes too low the potential exists for Sulfur dioxide (a poison) being released into the tank.

    Unless a very highly fed tank is anticipated, a Nitrate reactor IMO is a rather expensive and unneccesary item.
     
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