Modelling of biological wastewater treatment in Velika Gorica

U ovom radu provedena je analiza procesa biološke obrade komunalne otpadne vode grada Velika Gorica statističkom obradom 23 pokazatelja kakvoće ulazne otpadne vode i izlazne vode na kraju procesa obrade u razdoblju od 2010 do 2013. godine. Statističkom analizom i postavljanjem međusobnih korelacija promatranih parametara postavljen je temelj za izradu viševarijantnih modela. Izrađeni su viševarijantni linearni model (MLR) i model lokalne linearne regresije (PLR) s 11 i 23 pokazatelja. Predikcija biološke potrošnje kisika na izlaza iz uređaja dobivena modelima omogućava učinkovitije vođenje, kontrolu i optimizaciju procesa obrade komunalne otpadne vode grada Velike Gorice.In this work, analysis of biological treatment of municipal wastewater in Velika Gorica, was performed according to statistical analysis of 23 parameters quality of influent wastewater and quality effluent wastewater on final process in the period from 2010. to 2013. Statistical analysis and setting up mutual correaltion of the observed parameters make the foundation for the development of the multivariabile models. Multivariable linear model (MLR) and piecewise linear regression (PLR) model with 11 and 23 variables were performed. Prediction of biological oxygen demand (BOD) in effluent water provides efficient control and optimization of the wastewater treatment process in Velika Gorica