Ανάλυση κύκλου ζωής εφαρμογής καινοτόμων τεχνικών στην επεξεργασία των υγρών και στερεών αποβλήτων βιομηχανίας χυμών με σκοπό τη παραγωγή προϊόντων υψηλής προστιθέμενης αξίας

Καρδαμανίδης, Αθανάσιος; Kardamanidis, Athanasios

dc.contributor.author	Καρδαμανίδης, Αθανάσιος	el
dc.contributor.author	Kardamanidis, Athanasios	en
dc.date.accessioned	2025-05-07T08:25:20Z
dc.date.available	2025-05-07T08:25:20Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/61878
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.29574
dc.rights	Default License
dc.subject	LCA	en
dc.subject	Waste management	en
dc.subject	Orange waste	en
dc.title	Ανάλυση κύκλου ζωής εφαρμογής καινοτόμων τεχνικών στην επεξεργασία των υγρών και στερεών αποβλήτων βιομηχανίας χυμών με σκοπό τη παραγωγή προϊόντων υψηλής προστιθέμενης αξίας	el
dc.title	Life cycle assessment of innovative techniques for the treatment of liquid and solid waste from the juice industry aimed at the production of high-value-added products	en
heal.type	bachelorThesis
heal.classification	Χημική Μηχανική	el
heal.classification	Chemical Engineering	en
heal.language	el
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2024-09-25
heal.abstract	In this thesis, the environmental impacts of three alternative scenarios for the valorization of orange waste were investigated and compared to the conventional waste management method currently applied by Greek industries, which involves the disposal of solid waste in sanitary landfills and the discharge of liquid waste in urban wastewater treatment plants. To assess their environmental impacts, a Life Cycle Assessment (LCA) was conducted using the ReCiPe methodology in GaBi software, where input and output values of raw materials, as well as electricity and thermal energy consumption, were introduced. The LCA inventory values in GaBi for solid waste management were derived from models developed using SuperPro Designer process simulation software, based on experimental results from the literature, while the data for the wastewater management were obtained from bibliographic references. Scenario 1 involves the hydrodistillation of solid waste for the recovery of essential oils, followed by the anaerobic digestion of the sludge, resulting in the production of biogas and fertilizer, while the wastewater undergoes membrane treatment and chlorination. In Scenario 2, the solid waste is subjected to steam explosion treatment, which facilitates the separation of essential oils, followed by pectin precipitation and separation using ethanol and, finally, anaerobic digestion. The wastewater is treated in an aeration tank and chlorinated. In Scenario 3, essential oils are removed from the solid waste through solvent-free microwave extraction, followed by anaerobic digestion, while the wastewater is treated in a membrane bioreactor (MBR) and then in a UV reactor. The Life Cycle Assessment revealed significant differences in the environmental impacts of the three alternative orange waste management scenarios. Specifically, Scenario 1, despite the high energy demands of its processes, achieved a 36% reduction in climate change impact, owing to the positive contribution of the produced biogas and fertilizer to the evaluated environmental indicators. Scenario 2 exhibited the highest environmental burdens and was deemed unsustainable, with notable increases in climate change and resource depletion impact (exceeding 25% compared to the conventional method). In contrast, Scenario 3 demonstrated the lowest environmental impact, achieving a 46% reduction in climate change and a 48% reduction in resource depletion, confirming the effectiveness of using innovative and energy-efficient technologies. In conclusion, the utilization of orange waste through approaches that include the recovery of essential oils and the production of biofuels highlights environmental benefits, which, combined with the economic benefits derived from the market disposal of the produced products, make these methods particularly attractive for industrial-scale application.	en
heal.advisorName	Κροκίδα, Μαγδαληνή	el
heal.committeeMemberName	Κροκίδα, Μαγδαληνή	el
heal.committeeMemberName	Βουτσάς, Επαμεινώνδας	el
heal.committeeMemberName	Τόπακας, Ευάγγελος	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Χημικών Μηχανικών. Τομέας Ανάλυσης, Σχεδιασμού και Ανάπτυξης Διεργασιών και Συστημάτων (ΙΙ)	el
heal.academicPublisherID	ntua
heal.numberOfPages	101 σ.	el
heal.fullTextAvailability	false