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Originariamente inviata da Buran_
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riporto da: J. van Rijn et al. / Aquacultural Engineering 34 (2006) 364–376
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Some heterotrophic denitrifiers exhibit phosphorus
storage in excess of their metabolic requirements
through poly-P synthesis under either aerobic or
anoxic conditions, without the need for alternating
anaerobic/aerobic switches (Barak and van Rijn,
2000a). Unlike PAO, these denitrifiers were unable
to use PHA as an energy source for poly-P synthesis
and derived energy from oxidation of external carbon
sources. The feasibility of this type of phosphate
removal was demonstrated for freshwater as well as
marine recirculating systems (Barak and van Rijn,
2000b; Shnel et al., 2002; Barak et al., 2003; Gelfand
et al., 2003).
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credo che qui si riferisca all articolo postato da te
Moreover, Barat et al. (2006) proposed an equation to correlate calcium concentration (between 10 and 95 mg Ca/L) and the ratio between phosphate release and acetate uptake. Based on this equation, the maximum calcium concentration that can allow a positive value for this ratio is 227 mg Ca/L.
Calcium concentration in seawater is about 400 mg Ca/L, this suggests that even if magnesium and potassium levels are high as well and phosphates are available for EBPR, when the calcium concentration is high, the exchange of phosphate is blocked and PAO growth is limited.
sempre preso da qui
http://193.146.160.29/gtb/sod/usu/$UBUG/repositorio/10290820_Vallet.pdf
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Originariamente inviata da buddha
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CRI come spieghi questa riduzione drastica di fosfati nella mia prova altrimenti? Solo per crescita di batteri misti?
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