Operation Comparison of Waste Water Treatment Devices With SBR and MBR Technology

Pročišćavanje otpadnih voda neizostavni je dio i završni segment cjelokupnog sustava javne odvodnje, a SBR i MBR tehnologije pročišćavanja jedne su od najzastupljenijih u toj djelatnosti. U ovom diplomskom radu izvršena je analiza rada dviju različitih tehnologija instaliranih na UPOV-u Delnice u Republici Hrvatskoj (SBR) i UPOV-u Siffiano u Republici Italiji (MBR). Na izgrađenim UPOV-ima koji su u radu duži niz godina izvršena je analiza i ocjena rada svake od tehnologija, a prema zadanim kriterijima koji se inače primjenjuju kod varijantnih rješenja odabira optimalne tehnologije. Cilj istraživanja bio je realan prikaz, analiza i ocjena cjelokupnog tehnološkog procesa s prikazom investicijskih i operativnih troškova dobivenih od upravitelja. U opisnom dijelu proces pročišćavanja podijeljen ja na mehanički predtretman, biološko pročišćavanje i obradu viška mulja. Sama analiza obuhvaća parametar vrijednosti investicije, operativnog troška, prostorne komponente, složenosti kontrole i procesa te efekta pročišćavanja koji se različito vrednuju i dovode do krajnjeg rezultata. Sagledavajući kompletnu analizu zaključeno je da se radi o jednakovrijednim tehnologijama te da ne bi bilo realno dati prednost jednoj u odnosu na drugu. U zaključku je obrađena i teoretska mogućnost zamijene tehnologija te s time povezanim implikacijama na rezultat rada i troškove pojedinog UPOV-a. Rad također sadrži i kraću analizu usporedbe ovih dviju tehnologija na UPOV-u La Center u SAD-u.Wastewater treatment is an indispensable part and the final segment of the entire public drainage system and SBR and MBR treatment technologies are one of the most common in this industry. In this thesis, an analysis of the operation of two different technologies installed at the WWTP Delnice in the Republic of Croatia (SBR) and the WWTP Siffiano in the Republic of Italy (MBR) was performed. On the constructed WWTP that have been in operation for several years, an analysis and assessment of the operation of each of the technologies was carried out, according to the given criteria that are normally applied to variant solutions for selecting the optimal technology. The goal of the research was a realistic presentation, analysis and evaluation of the entire technological process with a presentation of investment and operating costs obtained from the manager. In the descriptive part, the purification process is divided into mechanical pretreatment, biological purification and treatment of excess sludge. The analysis itself includes the parameter of investment value, operating cost, spatial component, control and process complexity and the purification effect, which are evaluated differently and lead to the final result. Looking at the complete analysis, it was concluded that these are equivalent technologies and that it would not be realistic to give preference to one over the other. In the conclusion, the theoretical possibility of replacing technologies and related implications on the result of work and the costs of individual WWTP is also discussed. The paper also contains a shorter analysis of the comparison of these two technologies at WWTP La Center in the USA