diplomska naloga
Nika Murovec (Avtor), Boris Kompare (Mentor), Franci Steinman (Član komisije za zagovor), Dušan Žagar (Član komisije za zagovor)

Povzetek

Odstranjevanje železa iz odpadne vode v livarski industriji

Ključne besede

gradbeništvo;VKI;diplomska dela;UNI;odpadna voda;ultrafiltracija;odstranjevanje železa;livarstvo;emulzija;

Podatki

Jezik: Slovenski jezik
Leto izida:
Izvor: Ljubljana
Tipologija: 2.11 - Diplomsko delo
Organizacija: UL FGG - Fakulteta za gradbeništvo in geodezijo
Založnik: [N. Murovec]
UDK: 628.3(043.2)
COBISS: 6437985 Povezava se bo odprla v novem oknu
Št. ogledov: 2647
Št. prenosov: 601
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Angleški jezik
Sekundarni naslov: Iron removal from wastewater generated in the foundry industry
Sekundarni povzetek: Nowadays, industrial wastewater significantly contaminates our environment. There are many technologies for cleaning these waters. When we are constructing a new treatment plant we must take into consideration the existing standards and laws of the Republic of Slovenia. The company where I did my research is specialised in foundry industry and it is the manufacturer of the components for automotive and motorcycle industry. Wastewaters in the foundry are cleaned with ultrafiltration treatment plant. But there is a problem caused by excessively high concentrations of iron in the permeate. In my graduation thesis I first described and schematically showed the foundry and the treatment plant. In the selected sources and reference materials I looked for all the available technologies for removing iron from wastewater. I described all the technologies of the process and their advantages and disadvantages. During cleaning iron must precipitate from the soluble divalent to the insoluble trivalent form by oxidation, then the iron or iron oxide is removed with different filters. In experimental work I found the source of the iron in the foundry. In the laboratory I measured pH, temperature, electrical conductivity, concentration of iron and total organic carbon – TOC. With most congested waters I've done one filtration cycle at the membrane treatment plant with water containing the highest concentration of iron. I monitored the effect of cleaning. Finally, I chose the most appropriate technology for cleaning based on the pre-selected criteria.
Sekundarne ključne besede: graduation thesis;civil engineering;VKI;wastewater;ultrafiltration;iron removal;foundry;emulsions;
Vrsta datoteke: application/pdf
Vrsta dela (COBISS): Diplomsko delo
Komentar na gradivo: Univ. v Ljubljani, Fak. za gradbeništvo in geodezijo
Strani: XXIV, 80 str.
Vrsta dela (ePrints): thesis
Naslov (ePrints): Iron removal from wastewater generated in foundry industry
Ključne besede (ePrints): odpadna voda;ultrafiltracija;odstranjevanje železa;livarstvo;emulzija
Ključne besede (ePrints, sekundarni jezik): wastewater;ultrafiltration;iron removal;foundry;emulsions
Povzetek (ePrints): Industrijske odpadne vode v današnjem času predstavljajo velikega onesnaževalca za okolje. Obstaja mnogo tehnologij za čiščenje teh voda. Pri izgradnji novih naprav za čiščenje moramo upoštevati obstoječe standarde in zakonodajo RS na področju ravnanja z odpadnimi vodami. Podjetje, kjer sem opravljala raziskave, se ukvarja z livarstvom in je proizvajalec komponent za avtomobilsko in motorno industrijo. V livarni je za čiščenje odpadnih vod postavljena ultrafiltracijska čistilna naprava, težavo pa povzročajo previsoke koncentracije železa na iztoku iz čistilne naprave. V diplomski nalogi sem najprej opisala in shematsko prikazala livarno in čistilno napravo ter naredila pregled tehnologij za čiščenje odpadnih vod, obremenjenih z železom. Za vse navedene tehnologije sem navedla opis postopka ter njihove prednosti in slabosti. Pri čiščenju livarskih odpadnih voda je potrebno železo oboriti iz topne dvovalentne v netopno trivalentno obliko, nato pa železo oz. železove okside z različnimi filtri odstranimo. Pri eksperimentalnem delu sem poiskala izvore železa v livarni in njihove vnose v odpadno vodo. V laboratoriju sem merila pH, temperaturo, električno prevodnost, koncentracijo železa ter skupni organski ogljik – TOC. Z najbolj obremenjenimi vodami sem naredila en filtracijski cikel na membranski čistilni napravi in spremljala učinek čiščenja. Na koncu sem s pomočjo poskusov ter na podlagi cene, učinkovitosti čiščenja, vpliva pH, za kakšne koncentracije železa se tehnologija uporablja in razmerja med porabljenim oksidantom in očiščenim železom izbrala najprimernejšo tehnologijo za čiščenje.
Povzetek (ePrints, sekundarni jezik): Nowadays, industrial wastewater significantly contaminates our environment. There are many technologies for cleaning these waters. When we are constructing a new treatment plant we must take into consideration the existing standards and laws of the Republic of Slovenia. The company where I did my research is specialised in foundry industry and it is the manufacturer of the components for automotive and motorcycle industry. Wastewaters in the foundry are cleaned with ultrafiltration treatment plant. But there is a problem caused by excessively high concentrations of iron in the permeate. In my graduation thesis I first described and schematically showed the foundry and the treatment plant. In the selected sources and reference materials I looked for all the available technologies for removing iron from wastewater. I described all the technologies of the process and their advantages and disadvantages. During cleaning iron must precipitate from the soluble divalent to the insoluble trivalent form by oxidation, then the iron or iron oxide is removed with different filters. In experimental work I found the source of the iron in the foundry. In the laboratory I measured pH, temperature, electrical conductivity, concentration of iron and total organic carbon – TOC. With most congested waters I've done one filtration cycle at the membrane treatment plant with water containing the highest concentration of iron. I monitored the effect of cleaning. Finally, I chose the most appropriate technology for cleaning based on the pre-selected criteria.
Ključne besede (ePrints, sekundarni jezik): wastewater;ultrafiltration;iron removal;foundry;emulsions
ID: 8313073