prikaz prve stranice dokumenta ELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE
Embargo period 2025-11-08
master's thesis
ELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE
diplomski rad
2023. urn:nbn:hr:167:421148
Midenjak, Ana
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Midenjak, A. (2023). ELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:421148

Midenjak, Ana. "ELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:421148

Midenjak, Ana. "ELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:421148

Midenjak, A. (2023). 'ELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 23 December 2024, https://urn.nsk.hr/urn:nbn:hr:167:421148

Midenjak A. ELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2023 [cited 2024 December 23] Available at: https://urn.nsk.hr/urn:nbn:hr:167:421148

A. Midenjak, "ELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:167:421148

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TitleELEKTROKOAGULACIJA I PRIRODNI ZEOLIT RAZLIČITIH VELIČINA ČESTICA U OBRADI KOMPOSTNE PROCJEDNE VODE : diplomski rad
Title (english)ELECTROCOAGULATION AND NATURAL ZEOLITES OF DIFFERENT PARTICLE SIZES FOR TREATMENT OF COMPOST LEACHATE : diploma thesis
AuthorAna Midenjak
MentorNediljka Vukojević-Medvidović (mentor)
Committee memberLadislav Vrsalović (predsjednik povjerenstva)
Committee memberSandra Svilović (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 country2023-10-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Kompostiranje je proces u kojem, uz kompost, nastaju i velike količine kompostne procjedne vode opterećene anorganskim i organskim onečišćenjima te mikroorganizmima koje je potrebno ukloniti prije ispuštanja u okoliš kako ne bi došlo do zagađenja. U ovom radu provedeno je ispitivanje učinka hibridnog procesa elektrokoagulacije zajedno sa zeolitom različitih veličina čestica na obradu kompostne procjedne vode. Tijekom eksperimenta pratila se promjena pH, električne vodljivosti i temperatura, a na kraju procesa određeni su kemijska potrošnja kisika (KPK), mutnoća, ukupni isparni ostatak te mase nastalog taloga. Također su ispitane potrošnje elektroda te brzine taloženja suspenzije nakon provedbe hibridnog procesa. Rezultati pH i električne vodljivosti su pokazali najveći rast kod cinkove elektrode i većih gustoća struje. Porast temperature je vidljiv kod svih elektrodnih materijala i pri svim gustoćama struje. Najbolje uklanjanje KPK i mutnoće je pri uvjetima manjih veličina čestica i srednjih gustoća struje, veća je potrošnja anode od katode što je očekivano, no potrošnja katode je pogotovo vidljiva kod većih čestica. Taloženje je vrlo sporo što predstavlja problem budući da se nije postiglo značajno odvajanje nastalog taloga od otopine. Rezultati izračunatih operativnih troškova preko Faraday-eva zakona te smanjenja masa elektroda pokazuju znatne oscilacije vezane uz odabir materijala elektroda, gustoću struje te veličinu čestica prirodnog zeolita.
Abstract (english)
Composting is a process in which, in addition to compost, large amounts of compost leachate loaded with inorganic and organic pollutants and microorganisms are produced, which must be removed before discharge into the environment in order to prevent pollution. In this paper, experiment with hybrid process of electrocoagulation with different natural zeolite particle sizes, for the treatment of compost leachate was carried out. During the experiment, changes in pH, electrical conductivity and temperature were monitored, and at the end of the process, chemical oxygen consumption (COD), turbidity, total solids and the mass of the precipitate were determined. Electrode consumption and suspension settling test after the implementation of the hybrid process were also examined. Results of pH and electrical conductivity have shown the biggest incline when using zinc electrode and larger current density. The highest COD and turbidity decrease is under conditions of smaller particle sizes and medium current densities. The consumption of the anode is higher than the cathode, which is expected, but the consumption of the cathode is especially visible with larger particles. The settling is very slow, which is a problem since no significant separation of the resulting precipitate from the solution has been achieved. The results of the calculated operating costs through Faraday's law and the reduction of electrode masses show significant oscillations related to the choice of electrode material, current density and particle size of natural zeolite.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:421148
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: 2025-11-08
Terms of useLicence In copyright icon
Created on2023-11-08 07:54:07