Quote:
Originally Posted by EnderG60
Ok part 2. Why has the vodka dosing caused my alk dosing to nearly double?
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Dosing carbohydrates causes growt and respiration. +- 3.57 gram alk is consumed for each gram N removed from the water column. (EblingEnCo2006>
http://www.baharini.eu/baharini/lib/...0216x-main.pdf)
As the produced protein must be consumed and the consummation sustains biomass, most is released as ammonia and some ureum. The carbon becomes part of the normal food chain, most is released as CO2. The ammonia is nitrified. By dosing carbohydrates a cycle is created from NO3 to NO3 which includes nitrification. Nitrification consumes alk.
At high C:N ratio the cycle is from NH4 to NH4 avoiding nitrification.