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undergraduate thesis
Priprava tekućeg organskog gnojiva fermentacijom koprive (Urtica dioica L.) i kamilice (Chamomilla recutita L. Rauschert)
završni rad
Split: University of Split, Faculty of Chemistry and Technology, 2018. urn:nbn:hr:167:233064
Jukić, Zvonimir
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Jukić, Z. (2018). Priprava tekućeg organskog gnojiva fermentacijom koprive (Urtica dioica L.) i kamilice (Chamomilla recutita L. Rauschert) : završni rad (Undergraduate thesis). Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:233064

Jukić, Zvonimir. "Priprava tekućeg organskog gnojiva fermentacijom koprive (Urtica dioica L.) i kamilice (Chamomilla recutita L. Rauschert) : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:167:233064

Jukić, Zvonimir. "Priprava tekućeg organskog gnojiva fermentacijom koprive (Urtica dioica L.) i kamilice (Chamomilla recutita L. Rauschert) : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:167:233064

Jukić, Z. (2018). 'Priprava tekućeg organskog gnojiva fermentacijom koprive (Urtica dioica L.) i kamilice (Chamomilla recutita L. Rauschert) : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 16 May 2022, https://urn.nsk.hr/urn:nbn:hr:167:233064

Jukić Z. Priprava tekućeg organskog gnojiva fermentacijom koprive (Urtica dioica L.) i kamilice (Chamomilla recutita L. Rauschert) : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2018 [cited 2022 May 16] Available at: https://urn.nsk.hr/urn:nbn:hr:167:233064

Z. Jukić, "Priprava tekućeg organskog gnojiva fermentacijom koprive (Urtica dioica L.) i kamilice (Chamomilla recutita L. Rauschert) : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:167:233064

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Metadata
TitlePriprava tekućeg organskog gnojiva fermentacijom koprive (Urtica dioica L.) i kamilice (Chamomilla recutita L. Rauschert) : završni rad
Title (english)Obtaining liquid organic fertilizer by fermentation of nettle (Urtica dioica L.) and chamomile (Chamomilla recutita L. Rauschert) : bachelor thesis
AuthorZvonimir Jukić
MentorMario Nikola Mužek (mentor)
MBZ: 308280
Committee memberFranko Burčul (predsjednik povjerenstva)
Committee memberMiće Jakić (član povjerenstva)
Committee memberMario Nikola Mužek (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2018-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
U ovom radu je izvršena priprava tekućeg organskog gnojiva tijekom 17 dana kroz dvije serije uzoraka. Za fermentaciju su korišteni suhi mljeveni korijen koprive i suhi cvjetovi kamilice. Uzorci su pripremljeni otapanjem 20 g suhog bilja u 1 L vode i to u dvije serije: otapanjem u tehnološki pripremljenoj demineraliziranoj vodi s pH = 7 i σ = 0,83 μS cm-1 i u vodi odstajaloj 48 h na sobnoj temperaturi s pH = 7,18 i σ = 374 μS cm-1. Tijekom fermentacije provedene u temperaturnom rasponu okoline 4 – 15 °C, ispitivane su promjene pH vrijednosti, ukupne otopljene tvari (otopljenih soli), kao i električne vodljivosti uzoraka. Dobiveni rezultati pokazuju promjenu pH vrijednosti kod fermentacije uzoraka u odstajaloj vodi čije su vrijednosti blizu optimalnim vrijednostima (5,00 – 5,50) potrebnim za primjenu tekućeg organskog gnojiva. Uočava se i oslobađanje veće količine ukupne otopljene tvari u takvim uzorcima, a izmjerene su i više vrijednosti električne vodljivosti. Nakon skladištenja u trajanju od 120 dana na uzorcima pripravljenim u tehnološki demineraliziranoj vodi uočene su promjene pH vrijednosti, električne vodljivosti i sadržaja ukupne otopljene tvari, kao i promjene boje i mirisa čime je narušena kemijska stabilnost i postojanost. Kod uzoraka pripravljenih u odstajaloj vodi uočene se minimalne promjene pH vrijednosti, električne vodljivosti i sadržaja ukupne otopljene tvari, ali nije bilo promjene u boji i mirisu čime nije narušena kemijska postojanost i stabilnost.
Abstract (english)
In this experiment, the preparation of liquid organic fertilizer was performed for 17 days through two series of samples. For the fermentation process the dry root of nettle and dry camomile flowers were used. The samples were prepared by dissolving 20 g of dry plants in 1 L of water, in two series: in technologically prepared demineralised water with pH = 7 and σ = 0.83 μS cm-1 and tapwater (left 48 h at room temperature) with pH = 7.18 and σ = 374 μS cm-1. During the fermentation period of 17 days and the temperature range of 4 – 15 °C, changes in pH, concentration of total dissolved solids and electrical conductivity of the samples were measured. The results obtained show a change in the pH values of the fermented samples in the distilled water which values are close to the optimal values (5.00 – 5.50) required for the application of liquid organic fertilizers. The release of a larger amount of the total dissolved solids in such samples was also observed and higher values of electrical conductivity were measured. After 120 days of storage samples prepared in technologically demineralised water, changed values of pH, conductivity and the total dissolved solids as well as in colour, and odour thus deteriorating chemical stability and immutability. The samples prepared in the decaying water showed slight changes in pH, conductivity and the total dissolved solids while there was no changes in colour and odour thus not impairing chemical stability and immutability.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:233064
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Embargo expiration date: 2020-09-28
Terms of useLicence In copyright icon
Public noteKljučne riječi doradio knjižničar/ Key words are revised by the librarian.
RepositoryRepository of the Faculty of chemistry and technology
Created on2019-05-06 10:37:45