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Old 19-02-2010, 12:08 AM   #37
jebus
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Quote:
Originally Posted by |JTBC| View Post
Hi bro, I'm still not very clear can you elaborate to us.
So High/Low flow rate, big/small sump tank and more/less medias are good?
An understanding of concept is more important. Tks.
like humans need time to do work, bacteria also need time to do work.

too little time, the work is half done
too much time, does not mean more work is done.

Quote:
Originally Posted by BarraCuda™ View Post
My opinion for sump turnover is ... "as fast as you can afford".

Here's my reasoning,

Bio media is not single pass filtration. E.g Reverse Osmosis. Where the water only have 1 chance of passing through the media.

Bacteria will have higher efficiency when in higher waste concentration assuming carbon is not the limiting factor.

Eg. Both 100mg/l and 10mg/l of NH3 is passing through the same media with same flowrate. In terms of percentage NH3 removal, the 100mg/l will have a much higher efficiency than 10mg/l.
sounds logical that we want to bring solid waste( solid== concentrated)
to biomedia to have higher waste difference.

but do note that with higher Flowrate, the breaking down of waste into finer( hence less concentration) is also faster, don't think that bacteria action on the waste will be faster than the mechanical breakdown of waste. in the long run, the investment in higher flowrates might not yield better results
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