The invention discloses a
sewage denitrification dosing method and
system based on
machine learning and a storage medium, and belongs to the technical field of
sewage treatment.The method includes the steps that data are collected and preprocessed, and variable data influencing biochemical
pool carbon source dosing behaviors are obtained; and lagging influence of
carbon source input on the
denitrification amount index is analyzed, and the
duration time range of the
drug effect is determined. And adopting the trained prediction model, and based on the
denitrification amount index and the prediction variable of the future t + X period, obtaining the dosage of the (t + 1) th period. Through a
correlation analysis method, the correlation rule of
nitrogen conversion in the future X period after the
carbon source is added is analyzed, the
duration time of the
drug effect is determined, the
lag effect is accurately quantified, and the problem of mismatching of regulation and control opportunities is avoided. The
hysteresis effect is captured and subjected to multi-factor
coupling analysis based on the prediction model, the carbon source adding amount and time are optimized,
system load fluctuation caused by excessive carbon sources or incomplete
nitrogen removal caused by insufficient carbon sources are avoided, and the stability of an original
sewage ecological
system is gradually improved.