The main goal of the work consists in the optimization from the point of view of energy efficiency and the reduction of the implementation and operation costs of the advanced (tertiary) treatment stage of urban and industrial treatment plants, through the correct choice of the staged sequence of calculation of the still used primary parameters from the design phase of the tertiary stage component equipment. In the evaluation of the biological treatment stage within a wastewater treatment plant, several critical operational and design parameters must be rigorously analyzed. Primarily, the focus is on quantifying the concentration of organic pollutants (CBO5) in the influent to the biological reactor, alongside the total pollutant load, which includes both organic and inorganic constituents. These concentrations are essential for dimensioning the reactor and determining the oxygen demand. Furthermore, a detailed mass balance is performed for nutrients, particularly nitrogen and phosphorus.
PASCARIU et al. (Tue,) studied this question.
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