To respond to my message about problems caused by low PH on Nitrifying bacteria.
Coming from
US Environment Protection Agency
A very interesting paper (PDF 15 pages) on
Nitrification http://www.epa.gov/safewater/tcr/pdf/nitrification.pdf
I quote:
Quote:
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nitrifying bacteria are very sensitive to pH as shown in Figure 3. Nitrosomonas has an optimal pH between approximately 7.0 and 8.0, and the optimum pH range for Nitrobacter is approximately 7.5 to 8.0. Some utilities have reported that an increase in pH (to greater than 9)
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and 2 other interessant point on the consomation of bicarbonates in amonia-nitrogen oxidation and the final effect of low KH on PH stability.
I quote:
Quote:
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A model developed by Gujer and Jenkins (1974) indicates that 8.64 mg/L of bicarbonate (HCO3-) will be utilized for each mg/L of ammonia-nitrogen oxidized. Reductions in alkalinity can cause reductions in buffering capacity, which can impact pH stability.
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I don’t know if all the paper on the subject of lower KH that destabilize PH are baloney but they are very clear to me.
Even with all the nice theory out there, putting your hand in fire will always burn.