Theses (Department of Environmental Engineering)

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Theses collection of the Faculty of Engineering.

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Megjelenítve 1 - 3 (Összesen 3)
  • TételKorlátozottan hozzáférhető
    Investigation of zeta potential measurement and the utilization of MPT-2 Titrator unit in greywater treatment
    Kakish, Essa; Bodnár, Ildikó; DE--Műszaki Kar
    Amid escalating water scarcity, the exploration of innovative solutions becomes imperative. This research delves into the potential of domestic greywater, a substantial component of household wastewater, constituting a promising resource. Focused on repurposing bathroom greywater (BGW), the study aims to optimize treatment processes through coagulation-flocculation, utilizing the MPT-2 titrator unit. The unit's role is pivotal in determining precise coagulant doses necessary to achieve the isoelectric point, while continuously monitoring the effect of chemical dosing, a crucial aspect in effective treatment. Comparative analyses involve the examination of two coagulants, Iron(III) chloride and Aluminium Sulphate, on synthetic and real BGW samples. The study explores differences between synthetic and real BGW compositions, elucidating diverse characteristics such as pH, turbidity, biological oxygen demand (BOD5), and Total Organic Carbon (TOC) values. Additionally, variations in certain samples necessitate higher coagulant concentrations for achieving optimal treatment conditions. Conclusively, the research underscores the significance of the MPT-2 unit in streamlining the determination of precise coagulant doses. This automated tool facilitates rapid preliminary analyses based on raw BGW quality, vital for devising tailored treatment strategies catering to the complexities of varied greywater compositions.
  • TételKorlátozottan hozzáférhető
    Environmental impact comparative comparison of FMD and VP processes
    Guliyev, Khansuvar; Budai , Istvan; Viktoria , Mannheim; DE--Műszaki Kar
    Using 3D printing technology eliminates the extra expenditures involved with product development. Due to the high cost of creating traditional things for customers, selection of product has been a concern for industrialists. My thesis focuses on additive manufacturing, specifically additive manufacturing of polymer composites. I will explore the materials used for additive manufacturing and delve into the technology behind 3D printing. Additionally, I will examine 3D printing-based environmental devices and discuss the current trends and challenges in additive manufacturing. Furthermore, I will explore the potential of additive manufacturing and its impact on life cycle assessment. Lastly, I will evaluate the capabilities of the life cycle assessment software, GaBi 9.2 Education. My comparative results highlight several conclusions: • Both examined 3D processes (FDM and VP) have a minimal impact on the abiotic depletion of elements (ADPe) and contribute significantly to the abiotic depletion of fossil (ADPf) resources, putting strain on non-renewable resources. • The VP process generally has higher contributions to environmental impact categories, such as acidification potential (AP), global warming (planetary warming) potential (GWP), and human toxicity potential (HTP). • Both processes have a negligible influence on the depletion potential of the ozone layer (ODP).
  • TételKorlátozottan hozzáférhető
    A magyarországi papíralapú csomagolási hulladékok gyűjtésének és hasznosításának helyzete
    Ulbrik, Tamás; Truzsi, Alexandra; Makó, Balázs; DE--Mezőgazdaság- Élelmiszertudományi és Környezetgazdálkodási Kar
    A kutatás során kapott eredmények hasznosak, mert a papírpiac jobb megértése elősegíti a cég kereskedelmi stratégiáját. A háttérben való történések, összefüggések és ezek felfedezésük releváns és hasznos információ a cégnek. Ezáltal gyorsabban lehet reagálni a folyamatokra, vagyis rövidtávú előrejelzéseket lehet tenni a piac változásaira, és a papírhulladék árainak az esetleges emelkedésére, csökkenésére és trendváltozásaira. A piaci előrejelzések alapján meg lehet határozni, hogy a cég mikor jár jobban az eladással vagy vétellel, vagy raktáraiba való felhalmozással. Ezáltal elérhető a profit maximalizálása, amely stabil gazdasági hátteret ad a cégeknek.