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undergraduate thesis
Optimizacija koagulacije obrade tekstilne otpadne vode
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. urn:nbn:hr:149:846322
Bošnjak, Jelena
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Bošnjak, J. (2020). Optimizacija koagulacije obrade tekstilne otpadne vode (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:846322

Bošnjak, Jelena. "Optimizacija koagulacije obrade tekstilne otpadne vode." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:846322

Bošnjak, Jelena. "Optimizacija koagulacije obrade tekstilne otpadne vode." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2020. https://urn.nsk.hr/urn:nbn:hr:149:846322

Bošnjak, J. (2020). 'Optimizacija koagulacije obrade tekstilne otpadne vode', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 August 2024, https://urn.nsk.hr/urn:nbn:hr:149:846322

Bošnjak J. Optimizacija koagulacije obrade tekstilne otpadne vode [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2020 [cited 2024 August 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:846322

J. Bošnjak, "Optimizacija koagulacije obrade tekstilne otpadne vode", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:149:846322

Metadata
TitleOptimizacija koagulacije obrade tekstilne otpadne vode
Title (english)Optimization of coagulation of textile wastewater
AuthorJelena Bošnjak
MentorDavor Dolar (mentor)
Committee memberDavor Dolar (predsjednik povjerenstva)
Committee memberVilko Mandić (član povjerenstva)
Committee memberMarko Racar (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2020-09-24, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Kompleksni sastav i toksičnost otpadnih voda nastalih u tekstilnoj industriji predstavlja veliki izazov u njenoj obradi. Jedan od postupaka koji se primjenjuje je kemijska koagulacija čija optimizacija ima znatnu ulogu u njenoj učinkovitosti. Cilj ovog rada je pronalaženje kombinacije optimalnih uvjeta pH i koncentracije koagulanta željezova(III) klorida za učinkovito uklanjanje ukupnog organskog ugljika (TOC), smanjenje mutnoće, intenziteta obojenja i električne provodnosti uz završnu pH vrijednost blizu neutralnoj. Kao uzorak se koristila otpadna voda tekstilne tvrtke Galeb d.d. iz Omiša (Hrvatska). Koagulacija je provedena JAR – testom i parametri od interesa (mutnoća, električna provodnost, intenzitet obojenja, pH nakon koagulacije, ukupni ugljik, anorganski ugljik i TOC) obrađeni su metodom odzivnih površina. Rezultati su pokazali kako je optimalna vrijednost pH 5,83 i koncentracija željezova(III) klorida 11,88 mM čime je postignuta vrijednost TOC – a od 242,5 mg L^-1, mutnoća vode 74,1 NTU, električna provodnost od 4,7261 mS cm^-1, pH nakon koagulacije 5,27 i intenziteta obojenja od 8,01.
Abstract (english)
The complex composition and toxicity of wastewater generated in the textile industry is a major challenge in its treatment. One of the procedures applied is chemical coagulation whose optimization plays a significant role in its efficiency. The aim of this work is to find a combination of optimal pH conditions and concentration of iron(III) chloride coagulant for efficient removal of total organic carbon (TOC), reduction of turbidity, color intensity and electrical conductivity with a final pH value close to neutral. Wastewater from the textile company Galeb d.d. from Omiš (Croatia) is used as a sample. Coagulation was performed by JAR - test and parameters of interest (turbidity, electrical conductivity, colour intensity, pH after coagulation, total carbon, inorganic carbon, and TOC) were processed by the response surface method. The results showed that the optimal pH value was 5.83 and the concentration of iron(III) chloride 11.88 mM, which achieves a TOC value of 242.5 mg L^-1, water turbidity 74.1 NTU, electrical conductivity of 4.7261 mS cm^-1, pH after coagulation 5.27, and color intensity 8.01.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:846322
Study programmeTitle: Applied Chemistry - Undergraduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Applied organic chemistry
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije (sveučilišni/a prvostupnik/prvostupnica (baccalaureus/baccalaurea) primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2023-05-03 09:49:00