20.500.12556/DKUM-44970 EKONOMSKE ANALIZE POSTOPKOV ZA OBDELAVO ODPADNIH OLJNO-VODNIH EMULZIJ ECONOMIC ANALYSES OF PROCEDURES FOR WASTE OIL-IN-WATER EMULSIONS TREATMENT V diplomskem delu smo izvedli preliminarne ekonomske analize treh razlicnih postopkov za obdelavo odpadnih oljno-vodnih emulzij: uparjanja, ultrafiltracije in elektrokoagulacije. Cilj je bil na podlagi ekonomskih analiz izbrati najprimernejši postopek cišcenja odpadnih oljno-vodnih emulzij z vidika ucinkovitosti cišcenja in z ekonomskega vidika. Vse tri postopke smo ovrednotili z direktnim izpustom obdelane vode v centralno cistilno napravo in v kombinaciji z adsorpcijo na aktivnem oglju. Za vse postopke smo predpostavili letno kolicino odpadne oljno-vodne emulzije 3 000 t/a in zacetno vrednost kemijske potrebe po kisiku (KPK) 30 000 mg/L. Rezultati diplomskega dela so pokazali, da imajo vsi postopki pozitivno neto sedanjo vrednost, kar pomeni, da so ekonomsko sprejemljivi, doba vracanja je okoli enega leta. Kombinacija postopkov z adsorpcijo na aktivnem oglju nekoliko poslabša ekonomsko uspešnost v primeru uparjanja, bistveno pa v primeru ostalih dveh tehnologij. Z ekonomskega vidika je najuspešnejši postopek ultrafiltracija. Ce pa upoštevamo tudi nekatere neekonomske dejavnike, kot so npr. dostopnost industrijske opreme in informacij ter nizka koncna vrednost KPK, bi kombinacija uparjanja in adsorpcije na aktivnem oglju predstavljala dobro kompromisno procesno rešitev. In this thesis, preliminary economic analyses of three different procedures for treating waste oil-in-water emulsions were carried out: the evaporation, ultrafiltration and electrocoagulation. The aim was to identify the most suitable method for cleaning waste oil-in-water emulsions in terms of cleaning performance and economic feasibility. All three procedures were evaluated by direct discharge of treated water in an off-site water treatment unit, and in combination with adsorption on activated carbon. Annual quantity of waste oil-in-water emulsions was estimated to 3 000 t/a, and the initial value of the Chemical Oxygen Demand (COD) to 30 000 mg/L for all procedures. The results of this thesis showed that all three methods would have positive net present values, which means that the investment projects would be acceptable; payback periods were about one year. The combination of these procedures by adsorption on activated carbon decreased somewhat the economic potential in the case of the evaporation, but significantly in the case of the other two technologies. The ultrafiltration would be the most effective procedure from the economic point of view. However, if some non-economic factors would be also considered, such as the availability of the industrial equipment and information, as well as low final value of the COD, a combination of evaporation and activated carbon adsorption would represent a good compromise process solution. oljno-vodne emulzije ultrafiltracija uparjanje elektrokoagulacija ekonomske analize oil-in-water emulsion ultrafiltration evaporation electrocoagulation economic analysis true true false [N. Rupnik] Slovenski jezik Angleški jezik Diplomsko delo/naloga 2014-07-10 22:51:54 2014-07-22 08:13:52 2022-05-14 03:06:49 2021-05-02 03:10:02 2014 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.012.7:628.316(043.2) 18009110 URN:SI:UM:DK:50ZNHM7I VS_Rupnik_Nina_2014.pdf VS_Rupnik_Nina_2014.pdf 1 2BDA95948A5E33CBA49B2BF8C4F05FD0 c85b4c145466c4d88e80225f520ad36dee433ea6b9b562a4de1eafe13a08c3f4 fbdf075b-7c0a-11eb-bb7a-00155d0001ca https://dk.um.si/Dokument.php?lang=slv&id=64867 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0