Modeliranje procesa biološke obrade otpadne vode na komunalnom uređaju grada Velika Gorica

master's thesis

• Title (english): Modelling of biological wastewater treatment proces in municipal plant in Velika Gorica
• Author: Marina Dičak
• Mentor: Mirjana Čurlin (mentor)
• Granter: University of Zagreb; Faculty of Food Technology and Biotechnology; (Department of Process Engineering); (Section for Fundamental Engineering); Zagreb
• Defense date and country: 2010-07-08, Croatia
• Scientific / art field, discipline and subdiscipline: BIOTECHNICAL SCIENCES; Biotechnology

Abstract

U ovom radu provedena je analiza učinkovitosti rada uređaja za obradu komunalnih otpadnih voda grada Velika Gorica u razdoblju od travnja 2009. do ožujka 2010. Dobiveni rezultati prosječnog sastava kao i učinkovitosti uklanjanja sastojaka otpadne vode uspoređeni su s rezultatima prethodnih istraživanja na uređaju koje se kontinuirano provode od 2004. godine. Na osnovi baze podataka mjerenih 29 parametara koji ukazuju na kvalitetu ulazne otpadne vode, kvalitetu izlazne vode kao i karakteristika provedbe procesa postavljen je empirijski viševarijantni linearni regresijski model za različiti broj zavisnih varijabli. Kao nezavisne varijable pri izradi modela uporabljeni su parametri koji su propisani pravilnikom, a ukazuju na kakvoću pročišćene vode. U ovom radu su izrađena tri viševarijantna linearna modela, čiji je cilj bio predviđanje izlaznih vrijednosti kemijske potrošnje kisika (KPK), biološke potrošnje kisika (BPK) i ukupnih suspendiranih tvari na uređaju za obradu otpadnih voda grada Velika Gorica. Dobiveni modeli pokazuju bolje rezultate u odnosu na prethodna istraživanja.

Abstract (english)

The effectiveness analysis of municipal wastewater treatment plant in the city of Velika Gorica for period April 2009.- March 2010. is preformed in this paper. The results of average composition, as well as the efficiency of component removal are compared with the results of previous researches, thet are being preformed continuously since year 2004. Based on the database of 29 measured parameters that indicate the quality of raw influent water, processed water as well as the characteristics of the process, an empirical multivariate linear regression model for different numbers of dependent variables was being set. The parameters indicating the quality of purified water, which are prescribed by the competent institution, are used as independent variables during the model setting. Thus, three MLR models, whose goal was predicting the values of COD, BOD and total suspended solids in the processed water are presented in this paper. The results of the models are indicating the better agreement with experimental data compared to previous studies

• Keywords: biološka obrada otpadne vode; modeliranje; viševarijantni linearni model
• Keywords (english): biological wastewater treatment; modelling; multivariate linear model
• Language: croatian
• URN:NBN: urn:nbn:hr:159:587445
• Study programme: Title: Biotechnology; specializations in: Biochemical Engineering; Course: Biochemical Engineering; Study programme type: university; Study level: graduate; Academic / professional title: diplomirani inženjer biotehnologije; smjer biokemijsko inženjerstvo (diplomirani inženjer biotehnologije; smjer biokemijsko inženjerstvo)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Access restricted to students and staff of home institution
• Created on: 2017-08-29 10:03:18