Monitoring of physico-chemical parameters of wastewater at wastewater treatment plant - UPOV Šibenik : diploma thesis

U ovom radu analizirani su rezultati praćenja fizikalno - kemijskih parametara otpadne vode s Uređaja za pročišćavanje otpadnih voda - UPOV Šibenik. Uzorci otpadne vode su uzorkovani na ulazu i izlazu iz uređaja tijekom 2016. godine. U trenutnim i kompozitnim uzorcima otpadne vode analizirani su temperatura, pH vrijednost, električna vodljivost, kloridi, taloživa tvar, raspršena tvar, KPK i BPK 5 . Uz ove parametre praćen je i protok otpadne vode koja dolazi na uređaj. Dobiveni rezultati analizirani su na način da su uspoređene minimalne, maksimalne i srednje vrijednosti na ulazu i izlazu na tromjesečnoj i godišnjoj razini, te su uspoređene s Pravilnikom o graničnim vrijednostima emisija otpadnih voda NN 80/13 i Vodopravnom dozvolom. Analizirana je biorazgradljivost otpadne vode analizom omjera BPK 5 /KPK na ulazu i izlazu. Izračunate su vrijednosti opterećenja s raspršenom tvari i opterećenja s organskom tvari koje potvrđuju da su za opterećenje uređaja važni i protok i koncentracija. Izračunato je opterećenje uređaja izraženo preko broja ekvivalentnih stanovnika.This paper analyzes the results of monitoring the physico - chemical parameters of wastewater from the Wastewater Treatment Plant, UPOV Šibenik. The samples of wastewater were collected at the entrance and exit of the plant during the year of 2016. In samples of wastewater collected as current and composite, following parameters were analyzed: temperature, pH, electrical conductivity, chlorides, settable solids, suspended solid, COD and BOD 5 . In addition the waste water flow which comes to the device has also been monitored. The obtained results were compared with the minimum, maximum and average values at the entrance and exit of the plant, on a quarterly and annual level, as well as with the Regulations on limit values for wastewater emission (NN 80/13) and to the Water Management Permit. Biodegradability of wastewater express as ratio BOD 5 /COD was analyzed. The wastewater loading with suspended solid and with the organic substance have been calculated, and they confirm that both flow and concentration are important. The load of wastewater treatment plant expressed as number of population equivalent was calculated