Activated sludge microorganisms in degradation of compounds of municipal wastewater of Velika Gorica

U ovom diplomskom radu dan je kritički osvrt na učinkovitost provedbe obrade otpadne vode grada Velika Gorica motrenjem pokazatelja kakvoće rada sustava i usporedbom s rezultatima navedenim u literaturi koji obrađuju otpadne vode istog podrijetla. Istaknuta je važnost motrenja i održavanja čimbenika provedbe procesa koji su nužni za odvijanje bioloških procesa (količina hranjiva i otopljenog kisika, prisustvo toksičnih sastojaka, temperatura, pH-vrijednost). Također, istaknuta je važnost motrenja mikrobiološke kakvoće aktivnog mulja koji provodi razgradnju sastojaka otpadne vode. Uređaj za pročišćavanje otpadnih voda Velika Gorica osigurava zadovoljavajući stupanj uklanjanja organskih sastojaka (KPK) otpadne vode u sušnom razdoblju. Potrebno je nadograditi sustav i odrediti čimbenike vođenja procesa za učinkovitu obradu otpadne vode u kišnom razdoblju.In this paper the functioning of wastewater treatment plant of town of Velika Gorica was monitored. The critical overview on efficiency of wastewater treatment process evaluated by monitored process parameters compared with results from literature for wastewater of the same origin was given. The need for monitoring and maintaining of process parameters carrying out biological processes (amount of dissolved oxygen and food, presence of toxic compounds, temperature, pH) was emphasized. The importance of monitoring of activated sludge microorganisms involved in biodegradation of wastewater compounds was pointed out. Municipal WWTP of Velika Gorica provides good quality efluent with reduced COD during dry season. The plant must be reconstructed to be able to give good results during wet season as well