Analysis of Activated Sludge Reaction Mechanism and Prediction of Ammonia Nitrogen Based on BSM1 Standard Simulation

Today, with the idea of “green development” gradually gaining popularity, the country's requirements for urban sewage treatment and standard discharge are also getting higher and higher. Aiming at the complexity of biochemical reactions in urban domestic sewage treatment, this paper uses the intrinsic mechanism of BSM1 Simulation system (Benchmark Simulation Model No.1) to build a simulation experiment platform for BSM1 sewage treatment. Then the static simulation experiment is carried out on the simulation platform to evaluate whether the sewage treatment system is correct and stable. In order to effectively prevent
$S$

Nh,e
, S
Ntot,e
from exceeding the standard, it is still necessary to further improve the prediction model and control strategy of ammonia nitrogen. Aiming at the problem of excessive concentration of ammonia nitrogen in sewage treatment, a method of predicting ammonia nitrogen and total nitrogen by simulated annealing algorithm is proposed in this paper.