Author, Institution: Austėja Mikolaitienė, Kaunas University of Technology
Science area, field of science: Technological Sciences, Chemical Engineering, T005
Research Supervisors: Assoc. Prof. Dr. Rasa Šlinkšienė (Kaunas University of Technology, Technological Sciences, Chemical Engineering, T005)
Dissertation Defence Board of Chemical Engineering Science Field:
Prof. Dr. Raimundas Šiaučiūnas (Kaunas University of Technology, Technological Sciences, Chemical Engineering, T005) – chairperson
Prof. Dr. Sergiy Antonyuk (University of Kaiserslautern-Landau, Germany, Technological Sciences, Mechanical Engineering, T 009)
Assoc. Prof. Dr. Remigijus Ivanauskas (Kaunas University of Technology, Technological Sciences, Chemical Engineering, T005)
Chief Researcher Dr. Alvyra Šlepetienė (Lithuanian Research Centre for Agriculture and Forestry, Agricultural Sciences, Agronomy, A001)
Prof. Dr. Eugenijus Valatka (Kaunas University of Technology, Technological Sciences, Chemical Engineering, T005)
Dissertation defence meeting will be at Rectorate Hall of Kaunas University of Technology (K. Donelaičio 73 – 402, Kaunas)
The doctoral dissertation is available at the library of Kaunas University of Technology (Gedimino 50, Kaunas) and on the internet: A. Mikolaitienė el. dissertation.pdf
© A. Mikolaitienė, 2025 “The text of the thesis may not be copied, distributed, published, made public, including by making it publicly available on computer networks (Internet), reproduced in any form or by any means, including, but not limited to, electronic, mechanical or other means. Pursuant to Article 25(1) of the Law on Copyright and Related Rights of the Republic of Lithuania, a person with a disability who has difficulties in reading a document of a thesis published on the Internet, and insofar as this is justified by a particular disability, shall request that the document be made available in an alternative form by e-mail to doktorantura@ktu.lt.”
Annotation: The dissertation examines and solves closely related problems that are rapidly emerging worldwide. In order to ensure sufficient efficiency of the food chain, constant intensity of agricultural activity is carried out and thus the aim is to ensure the highest production. However, the constant use of concentrated fertilizers (especially nitrogen) increases nitrogen losses due to evaporation and leaching from the soil, due to the overall air and water pollution. The work concentrates on advanced ideas, materials and technologies, proposes ways to enrich suspension and the most popular nitrogen fertilizers (urea) with bioactive substances for this purpose (microalgae) and thus prepares complex suspension and solid nitrogen fertilizers, arranged so that sufficient plant food supply can be used, but together with food and helps to preserve soil health. Also, in order to optimize the production process of such fertilizers, the granulation of urea enriched with microalgae in a drum granulator is simulated using the discrete element method and evaluated using parameters describing the quality of granulation.
June 13 d. 10:00
Rectorate Hall at Kaunas University of Technology (K. Donelaičio 73-402, Kaunas)
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