Revolving algae scrubber

Discussion in 'Biological/Natural Filtration and Deep Sand Beds' started by Paul B, 24 Oct 2012.

  1. Paul B

    Paul B

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    This revolving algae scrubber is a new prototype and if it works well I willdesign a larger, better looking one.
    The theory is that the cotton material on the belt will pick up surface scum and run it very slowly past bright LEDs to hopefully grow algae. The belt snaps of to clean.

    [​IMG]
     
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  3. dallasg

    dallasg Moderator

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    nice, what motor did you use?

    i think the movement will also keep the water well oxygenated...

    great idea
     
  4. RiaanP

    RiaanP Moderator

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    interesting idea.
    Hopefully no salt spray

    What makes it turn?
     
  5. dallasg

    dallasg Moderator

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    no salt spray, its slowly going through the water ;)
     
  6. seank

    seank

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    Very interesting idea Paul.. Enough oxygen, enough light, perfect habitat for algae. One concern though, the motor need to be strong enough, as in the early stages, there is no weight except for the wet cloth, but it will become much heavier as the algae grows.....
    Another concern, have you got something in place to prevent the "conveyor" to "turn/spin" itself off the shaft?
    Water will also "run" off the wheel on top toward the sides, dripping outside of the tank, unless it is away from the sides, or unless you add a type of rubber O-ring on each side, preventing water drip up to a certain point, but also aiding in "conveyor" not turning off the shaft...my 2 cents....lol
     
  7. vatso

    vatso

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    How long with the each pad get light per revolution? also what about algae falling off when it goes back into and out of the water?
     
  8. OP
    Paul B

    Paul B

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    It's a refrigerator timer motor. The belt takes 3 minutes to make one revolution.

    You can't stop that motor with your hand because it is so geared down, plenty of torque.

    I think you doubt my creative skills, that is taken care of. I had it running in my workshop for a week before I installed it on my tank.

    You read my mind, there are O rings on the top spool. The belt is also kind of dry by the time it gets to the top, so it does not drip.

    My theory is that when I observe the rocks here at low tide, they are out of the water and wet. Algae grows much faster on the rocks that are out of the water than on the rocks that stay submerged. So I figured I would use that as a basis for my scrubber.
    It is just an experiment and didn't really cost anything. If it works well I will remove my algae trough and build a large one of these.
     
  9. Wes

    Wes

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    :thumbup:
     
  10. seank

    seank

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    Would have thought you planned this before posting...lol. Hope it works Paul, then we can all start on one before it is patented....he he
     
  11. ChrisRaubs

    ChrisRaubs

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    This is quite an interesting design! Well thought out ;)
     
  12. leslie hempel

    leslie hempel Moderator MASA Contributor

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    "revolutionary"?? :tt2:
     
  13. carlosdeandrade

    carlosdeandrade

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    Wow, i was definitely last in line when God handed out the gift of DIY, great piece of kit, can't wait to hear if it's successful:thumbup:.
     
  14. OP
    Paul B

    Paul B

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    There will be no patent on this one. Two patents are enough and much more than I plan to spend on this. :biggrin:

    I build something every day, if I tried to patent everything, I would go nuts, and broke.:eek:
     
  15. RocketRooster

    RocketRooster

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    So where's the updates?!?!
     
  16. OP
    Paul B

    Paul B

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    To update, the thing is still running, it is not dripping, has not stopped and did not run off the shaft, however it also has failed to grow any algae. There is something growing on it but it is more blackish. I think that there is so much hair algae growing in my algae trough that there are no nutrients left for it to grow anyplace else. There is no algae growing in the tank itself. I will leave it there a while because I just think it is cool.
     
  17. RocketRooster

    RocketRooster

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    Well, think of it as a Rube Goldberg oxygenator :)
     
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