Issue №: 3 (134)
The journal presents the results of scientific research and addresses current issues in the development and improvement of agricultural equipment and technologies, particularly in the design, production, and operation of machines and technical systems in the agro-industrial complex, including aspects of their efficient functioning.
RESEARCH INTO DEWATERING PROCESSES OF WET DISPERSED MATERIALS UNDER VIBRATORY AND VIBROIMPACT LOADING
Ivan SEVOSTIANOV – Doctor of Technical Sciences, Professor, Substitute Teacher at the Oberstufenzentrum II Barnim (Vocational Education Centre II Barnim), Eberswalde, Germany (e-mail: ivansev70@gmail.com; https://orcid.org/0000-0001-8965-9810).
The paper presents a comprehensive theoretical and comparative analysis of the mechanical dewatering processes of wet dispersed materials, including food-production wastes such as distillery stillage, brewery spent grain, sugar beet pulp and coffee slurry, under static, vibratory and vibroimpact loading conditions. Particular attention is paid to the physical and mechanical mechanisms governing moisture removal and to the possibilities of increasing the energy efficiency of dewatering equipment. The forms of moisture binding in colloidal capillary-porous bodies are systematised according to their binding energy, with a clear distinction between mechanically removable moisture and more strongly bound adsorption and chemically bound fractions.
The rheological behaviour of wet dispersed materials is described using phenomenological models based on combinations of Hooke, Newton and Saint-Venant elements, including elastoviscoplastic and inertial components. The theoretical principles of static pressing are analysed considering capillary, neutral and effective pressure components, as well as moisture filtration according to Darcy’s law. The conditions governing transitions to pseudofluidisation and vibroboiling are examined, taking into account particle size, initial moisture content, excitation acceleration, vibration parameters and static punch pressure.
Governing equations describing two-component harmonic excitation are presented, and an energy-balance approach to linearisation of nonlinear dynamic processes is outlined. A comparative assessment of existing dewatering technologies demonstrates that conventional belt, screw, centrifugal and vibratory equipment generally leaves a considerably higher residual moisture content than vibroimpact treatment. The developed theoretical framework provides a scientific basis for selecting and optimising the loading regimes, structural parameters and operating conditions of dewatering equipment. The obtained results can be applied in the development of energy-efficient technologies for processing wet food-production wastes, reducing energy consumption, improving moisture removal and enhancing the overall efficiency of waste utilisation.
1. Chen, Y., Chio, C., Boteju, R., Lu, G., Dang, Q.-L., & Qin, W. (2026). Sludge dewatering: A review of conventional methods and microbial assisted approaches. Journal of Environmental Management, 405, Article 129776. https://doi.org/10.1016/j.jenvman.2026.129776 [in English].
2. Christensen, M. L., Keiding, K., Nielsen, P. H., & Jørgensen, M. K. (2015). Dewatering in biological wastewater treatment: A review. Water Research, 82, 14–24. https://doi.org/10.1016/j.watres.2015.04.019 [in English].
3. Hong, E., Yeneneh, A. M., Sen, T. K., Ang, H. M., & Kayaalp, A. (2018). A comprehensive review on rheological studies of sludge from various sections of municipal wastewater treatment plants for enhancement of process performance. Advances in Colloid and Interface Science, 257, 19–30. https://doi.org/10.1016/j.cis.2018.06.002 [in English].
4. Jiang, Y., & Gao, F. (2023). Dehydration performance of municipal sludge and its dewatering conditioning methods: A review. Industrial & Engineering Chemistry Research, 62(29), 11337–11357. https://doi.org/10.1021/acs.iecr.3c01553 [in English].
5. Kaletnik, H., Sevostianov, I., Bulgakov, V., Holovach, I., Melnik, V., Ihnatiev, Ye., & Olt, J. (2020). Development and examination of high-performance fluidised-bed vibration drier for processing food production waste. Agronomy Research, 18(4), 2391–2409. https://doi.org/10.15159/AR.20.234 [in English].
6. Pavez-Jara, J., Korving, L., Jeison, D., & de Kreuk, M. K. (2026). Dewatering assessment of sewage sludge: A remaining challenge. Reviews in Environmental Science and Bio/Technology, 25, Article 25. https://doi.org/10.1007/s11157-026-09776-4 [in English].
7. Qi, Y., Thapa, K. B., & Hoadley, A. F. A. (2011). Application of filtration aids for improving sludge dewatering properties—A review. Chemical Engineering Journal, 171(2), 373–384. https://doi.org/10.1016/j.cej.2011.04.060 [in English].
8. Sevostianov, I., Didyk, A., & Tokarchuk, D. (2022). Classification and analysis of methods and equipment for dehydration of damp dispersive materials. Engineering, Energy, Transport AIC, 3(118), 53–58. https://doi.org/10.37128/2520-6168-2022-3-7 [in English].
9. Sevostianov, I., Ivanchuck, Y., & Kravets, S. (2020). Elaboration and researches of hichly effective installation for vibro-blowing dehydration of dispersive waste of food productions. Engineering, Energy, Transport AIC, 3(110), 24–33. https://doi.org/10.37128/2520-6168-2020-3-3 [in English].
10. Sevostianov, I., & Ivanchuck, Y. (2022). Modelling of working process of equipment with hydraulic drive for separation of damp dispersive materials. Engineering, Energy, Transport AIC, 1(116), 77–82. https://doi.org/10.37128/2520-6168-2022-1-9 [in English].
11. Sevostianov, I., Polishchuk, O., & Slabkyi, A. (2015). Elaboration and research of installation for two-component vibratory impact dehydration of food productions waste. Eastern-European Journal of Enterprise Technologies, 5(7[77]), 40–46. https://doi.org/10.15587/1729-4061.2015.49272 [in Ukrainian].
12. Sevostianov, I., Tokarchuk, O., & Pidlypna, M. (2021). Automated technological projection of classification processes of dry dispersive materials. Engineering, Energy, Transport AIC, 2(113), 15–21. https://doi.org/10.37128/2520-6168-2021-2-2 [in English].
13. Sevostianov, I. V. (2022). Determination of optimal design and working parameters of a vibro-press for dehydration of damp dispersive wastes of food industry. Engineering, Energy, Transport AIC, 2(117), 87–96. https://doi.org/10.37128/2520-6168-2022-2-9 [in English].
14. Sevostianov, I. V. (2022). Elaboration of processes of vibro-blowing dehydration of damp dispersive materials in a closed press-form. Vibrations in Engineering and Technology, 2(105), 5–16. https://doi.org/10.37128/2306-8744-2022-2-1 [in English].
15. Wei, H., Gao, B., Ren, J., Li, A., & Yang, H. (2018). Coagulation/flocculation in dewatering of sludge: A review. Water Research, 143, 608–631. https://doi.org/10.1016/j.watres.2018.07.029 [in English].
16. Wu, B., Dai, X., & Chai, X. (2020). Critical review on dewatering of sewage sludge: Influential mechanism, conditioning technologies and implications to sludge re-utilizations. Water Research, 180, Article 115912. https://doi.org/10.1016/j.watres.2020.115912 [in English].
About the journal
G8 – Materials Science
G9 – Applied Mechanics
G10 – Metallurgy
G11 – Mechanical Engineering (by specializations)
The journal "Engineering, Energy, Transport AIC" is indexed according to the following databases and catalogs:
The All-Ukrainian scientific journal “Technology, energy, agriculture transport AIC” is an open-access scientific publication that publishes the results of original research, theoretical and applied developments, as well as scientific papers in the fields of engineering sciences, energy systems, and transport technologies of the agro-industrial complex.
The main objective of the scientific journal “Technology, energy, agriculture transport AIC” is to disseminate the results of modern scientific research and to promote the development of technical, energy, and transport solutions for the agro-industrial complex through the publication of scientific materials characterized by scientific novelty and practical significance in the field of design and modernization of machinery, equipment, and technologies.
The journal’s activities are focused on supporting the development of engineering science, stimulating the implementation of innovative approaches into industrial practice, as well as ensuring effective exchange of scientific achievements among researchers, educators, engineers, and other specialists in relevant fields.
Objectives of the Journal
To achieve its defined objective, the journal ensures the implementation of the following key tasks:
· publication of the results of fundamental and applied research covering the fields of applied mechanics, mechanical engineering, materials science, energy systems, electrical engineering, electromechanics, and transport systems of the agro-industrial sector;
· promotion of the implementation of advanced technical and technological developments aimed at improving the efficiency of machinery, equipment, and production processes;
· creation of conditions for active scientific exchange among research institutions, higher education institutions, industrial enterprises, and other interested organizations;
· support for the development of interdisciplinary research and expansion of cooperation among specialists in various fields of science and technology;
· promotion of the improvement of the scientific and technical level of research related to the design, modernization, and operation of technical equipment used in agro-industrial production;
· dissemination of information on modern achievements in science and technology and the implementation of innovative technologies in the fields of technical support, energy, and transport;
· development of a scientific information environment that facilitates effective scientific communication and the integration of national research into the international scientific community.
Publication frequency: 4 issues per year
Languages of publication: Ukrainian, English
Editor-in-Chief: Vitalii YAROPUD
State Registration: Decision of the National Council of Ukraine on Television and Radio Broadcasting № 1337 and № 1180. Media Identifier: R30-05173
EDRPOU Code: 00497236
Publisher ROR: https://ror.org/05m3ysc06
Publisher DOI prefix: 10.37128 ISSN (print): 2520-6168
The scientific journal is included in Category “B” of the List of Scientific Professional Publications of Ukraine in which the results of dissertation research for obtaining the degrees of Doctor and Candidate of Sciences may be published in the following specialties: G8 – Materials Science; G9 – Applied Mechanics; G10 – Metallurgy; G11 – Mechanical Engineering (by specializations). (Order of the Ministry of Education and Science of Ukraine dated June 11, 2026 №928
Technology, energy, agriculture transport AIC is a scholarly professional journal with a long-standing history and stable academic tradition, reflecting the evolution of engineering and technical sciences within the agro-industrial sector of Ukraine.
The journal was founded in 1997 under the title Bulletin of Vinnytsia State Agricultural Institute. According to the Resolution of the Presidium of the Higher Attestation Commission of Ukraine dated September 11, 1997, the publication obtained the status of a professional scientific journal, which enabled the publication of the main results of doctoral and candidate dissertations in technical sciences. From its inception, the journal positioned itself as an academic platform for addressing current issues of mechanization, electrification, and technical support of agricultural production. During 2001–2014, the journal was published under the title Proceedings of Vinnytsia National Agrarian University. Series: Technical Sciences (State Registration Certificate of Print Media KV No. 16644-5116 PR dated April 30, 2010). Throughout this period, a systematic approach to the selection and peer review of scientific manuscripts was established, the thematic scope of publications was expanded, and continuity of scientific directions as well as the development of sectoral engineering schools was ensured. Since 2015, the journal has been published under its current title, Technology, energy, agriculture transport AIC (State Registration Certificate No. 21906-11806 R dated March 12, 2016). The change of title reflected the expansion of the journal’s thematic coverage and its orientation toward interdisciplinary research in mechanical engineering, energy systems, electrical engineering, transport technologies, automation, and digital solutions for the agro-industrial complex.





