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Nutrient concentration changes

Mylonas, V.A. Nutrient concentration changes in oriental Kabakulak tobacco during the growing season Beitr. Tabakforsch. Int. 12 (1984) 147-152. [Pg.1367]

False. Pressure cycle bioreactors do not give even distribution of nutrients. If air and nutrients are introduced at a single point then O2, CO2 and nutrient concentration, as well as hydrostatic pressure, change in a cyclic manner as the medium flows around the reactor. [Pg.96]

Disturbances (both natural and anthropogenic) that increase nutrient concentration may cause the river biological components and metabolism to shift from natural heterotrophy toautotrophy, even in relatively pristine rivers. Enforced hydrological stability or increased nutrient loading, among many other disturbances, may cause pronounced changes in system metabolism. [Pg.36]

Fig. 2 Longitudinal changes in nutrient concentrations below the effluent input of a WWTP without tertiary treatment in La Tordera Stream. Values are the average ( SEM) of monthly measurements done over a year (see more details in [47]). In the left panel, note the net decline of ammonium concentration with concomitant net increases in nitrate concentration, suggesting a potential hot spot for nitriflcation. However, in the latest meters downstream, dissolved inorganic nitrogen (DIN) tends to decrease, which indicates net lost of DIN possibly due to denitrification. The right panel shows net changes in phosphate and dissolved organic carbon (DOC) concentrations. While phosphate does not exhibit any clear trend on an annual basis, DOC seems to decline similarly to DIN, which supports the relative dominance of denitrification... Fig. 2 Longitudinal changes in nutrient concentrations below the effluent input of a WWTP without tertiary treatment in La Tordera Stream. Values are the average ( SEM) of monthly measurements done over a year (see more details in [47]). In the left panel, note the net decline of ammonium concentration with concomitant net increases in nitrate concentration, suggesting a potential hot spot for nitriflcation. However, in the latest meters downstream, dissolved inorganic nitrogen (DIN) tends to decrease, which indicates net lost of DIN possibly due to denitrification. The right panel shows net changes in phosphate and dissolved organic carbon (DOC) concentrations. While phosphate does not exhibit any clear trend on an annual basis, DOC seems to decline similarly to DIN, which supports the relative dominance of denitrification...
Merseburger GC, Marti E, Sabater F (2005) Net changes in nutrient concentrations below a point source input in two streams draining catchments with contrasting land uses. Sci Total Environ 347 217-229... [Pg.193]

Changes to the urinary tract in pregnant women predispose them to an increased incidence of bacteriuria, and subsequent urinary tract infections that may follow. These changes are not limited to amino acid and other nutrient concentrations in the urine, but extend to physiologic changes such as reduced bladder tone and dilation of the renal pelvis and ureters.22,23... [Pg.1156]

An additional assumption is that the change in cell concentration proportional to the change in nutrient concentration, that is,... [Pg.80]

Homeostasis to permit adaptation to changes in nutrient concentrations, stress... [Pg.1880]

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See also in sourсe #XX -- [ Pg.160 ]



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