Proposed Sump

Discussion in 'Biological/Natural Filtration and Deep Sand Beds' started by moz, 21 Mar 2008.

  1. moz

    moz

    Joined:
    30 Jul 2007
    Posts:
    638
    Likes Received:
    4
    Location:
    Port Elizabeth
  2. AdS Guest




    to hide all adverts.
  3. Kanga

    Kanga Retired Moderator MASA Contributor

    Joined:
    7 May 2007
    Posts:
    4,576
    Likes Received:
    23
    Location:
    In the Koeberg blast radius
    Looks nice Moz, I would drop hight of the 2 x 275mm panes to say 200, just leaves more space for water to back siphon when the pump stops

    err whats the raceway for?
     
  4. moz

    moz Thread Starter

    Joined:
    30 Jul 2007
    Posts:
    638
    Likes Received:
    4
    Location:
    Port Elizabeth
    Might use it as a algae scrubber.
     
  5. Muz

    Muz

    Joined:
    7 May 2007
    Posts:
    914
    Likes Received:
    7
    Sorry.. I don't understand the raceway idea..

    I dont know if I agree with Kanga about dropping the 275 to as low as 200.. if your DSB is gonna be around 160 that only leavs 4cm of water flowing over the DSB, depending on how big your return pump is, that could cause a rush of water over the DSB.. that being said he does have a point. Maybe make the sump 400 / 425 deep if you have the space, you can still use 6mm glass.. use a 10mm base and remember, sumps need polystyrene as well.
     
  6. moz

    moz Thread Starter

    Joined:
    30 Jul 2007
    Posts:
    638
    Likes Received:
    4
    Location:
    Port Elizabeth
    The principle is similar to that of coil denitrification. With a coil you have a larger area for contact with the anaerobic bacteria. The real difference with the raceway or mixing race is that you use a macro algae. The baffles increase the contact time with the algae allowing for better nutrient removal. A similar process is used at the end of some waste water treatment works for chlorination, the raceway allows for an increased contact time with the chlorine, allowing for better disinfection. The same principle can also be used for UV sterilization.
    Hope that answers your question.
     
  7. Dohn

    Dohn MASA Contributor

    Joined:
    21 Mar 2008
    Posts:
    458
    Likes Received:
    4
    Location:
    Kuwait
    I was thinking of a similar design except the raceway extends right down into the
    DSB area.

    Is this a problem with the amount of water flowing over the DSB, Do some critters in the DSB prefer relaxed flow. If the DSB was as wide as the sump then there would be some quite areas in the DSB to escape the flow.
     
Recent Posts

Loading...
Similar Threads - Proposed Sump Forum Date
Proposed Quarantine Tank General Discussions and Advice 5 Apr 2011
Proposed TS 2 Mod Protein Skimmers, Mechanical Filtration 24 Jan 2011
Overview of Proposed Highways and Tolls - Gauteng AND NOW FOR THE GOOD NEWS The Sump 30 Apr 2010
proposed lighting for softies and LPS tank Lighting 18 Feb 2010
Proposed Licences Diving, Collecting and Environmental Discussions 2 Feb 2010
Proposed New Setup - Comments, Advice? uncategorised 7 Sep 2008
Proposed fish list Marine Fish Discussions 22 Jan 2008