prikaz prve stranice dokumenta Utjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom
Embargo period 2027-01-23
master's thesis
Utjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom
diplomski rad
2024. urn:nbn:hr:167:971857
Dujmović, Klara
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Dujmović, K. (2024). Utjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:971857

Dujmović, Klara. "Utjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:167:971857

Dujmović, Klara. "Utjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:167:971857

Dujmović, K. (2024). 'Utjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 23 January 2025, https://urn.nsk.hr/urn:nbn:hr:167:971857

Dujmović K. Utjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2024 [cited 2025 January 23] Available at: https://urn.nsk.hr/urn:nbn:hr:167:971857

K. Dujmović, "Utjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:167:971857

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Metadata
TitleUtjecaj tipa miješala na obradu otpadnih voda hibridnim procesom elektrokoagulacije i zeolitom : diplomski rad
Title (english)Impeller type impact on wastewater treatment using the hybrid process of electrocoagulation and zeolite : diploma thesis
AuthorKlara Dujmović
MentorNediljka Vukojević-Medvidović (mentor)
Committee memberSandra Svilović (predsjednik povjerenstva)
Committee memberIvona Nuić (član povjerenstva)
Committee memberNediljka Vukojević-Medvidović (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2024-10-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U ovom radu provedena su ispitivanja hibridnog procesa obrade otpadne vode elektrokoagulacijom uz dodatak sintetskog zeolita granulacije < 40 µm uz primjenu operacije miješanja korištenjem različitog tipa miješala, odnosno turbinskog tipa miješala s ravnim lopaticama SBT (engl. straight blade turbine) i turbinskog tipa miješala s lopaticama pod nagibom PBT (engl. pitched blade turbine) miješala pri različitim vremenima kontakta od 30, 20 i 10 minuta. Eksperimenti su izvedeni u elektrokemijskoj ćeliji s Al i Fe elektrodama, pri konstantnoj gustoći struje od 0,0182 A/cm 2 , udaljenosti elektroda od 3 cm, dodatkom elektrolita (0,5 g/L) i zeolita (15 g/L). Tijekom eksperimenta pratila se pH vrijednosti, temperatura i električna vodljivost, dok su kemijska potrošnja kisika, mutnoća i ukupni isparni ostatak određeni na početku i na kraju procesa. Nakon provedbe hibridnog procesa ispitane su promjene mase elektroda te je proveden test taloženja suspenzija. Rezultati su pokazali da je za obradu otpadne vode najbolje upotrijebiti elektrokoagulaciju bez dodatka zeolita uz primjenu Fe elektroda te uz primjenu PBT miješala. Izračun operativnih troškova pokazao je da dodatak zeolita i duže vrijeme provedbe procesa pridonosi boljem otapanju elektroda, neovisno o tipu miješala.
Abstract (english)
This study examined a hybrid wastewater treatment process through electrocoagulation using synthetic zeolite with a particle size of < 40 µm by applying mixing operations using different impeller types: SBT (straight blade turbine) and PBT (pitched blade turbine). The experiments involved varying contact times of 30, 20, and 10 minutes. They were conducted in an electrochemical cell with aluminum and iron electrodes, at a constant current density of 0,0182 A/cm², an electrode spacing of 3 cm, and the addition of electrolyte (0,5 g/L) and zeolite (15 g/L). During the experiments pH values, temperature, as well as electrical conductivity were monitored. Chemical oxygen demand, turbidity, and total solids were determined at the beginning and at the end of the process. After the hybrid process was completed, changes in electrode mass and the sedimentation of suspensions were examined. The results indicated that the most effective wastewater treatment was achieved through electrocoagulation without the addition of zeolite, using iron electrodes and PBT impeller. The operational cost calculations showed that the addition of zeolite and longer processing time enhances electrode dissolution, regardless of the impeller type.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:971857
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures, Materials and Environmental protection
Course: Materials
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsEmbargoed access
Embargo expiration date: 2027-01-23
Terms of useLicence In copyright icon
Created on2025-01-23 12:18:31