The work considers the use of hydrodynamic disturbances of the fermented flow to increase the efficiency of the anaerobic fermentation of liquid dung drains. In order to increase the efficiency of the anaerobic fermentation process of liquid dung drains, a constructive solution to a horizontal digester with a trigger device is proposed. A horizontal digester with a trigger device provides hydrodynamic disturbances in the flow of fermented fluids, leading to an increase in the efficiency of anaerobic fermentation of the substrate due to better removal of silt masses, preventing collmatization, overgrowing and clogging of the digester working space. To identify the main factors affecting the effectiveness of the anaerobic fermentation process, a theoretical hydrodynamic study of the proposed design of the digester was carried out. The hydrodynamic analysis showed that the speed of the substrate in the digester was determined by large number of factors, such as the physicochemical characteristics of the substrate and the technological parameters of anaerobic fermentation, as well as the design features of the installation.

Takhanov Mikhail P., Osmonov Orozmamat M., Savvateeva Irina A., Gorokhov Konstantin K.

1. Bondarenko A. M., Kachanova L. S., Chelbin S. M., Golovko A. N. Issledovanie processa proizvodstva guminovyh organomineral'nyh udobrenij v sisteme ekonomicheskoj bezopasnosti strany [Investigation of the process of production of humic organomineral fertilizers in the system of economic security of the country]. Dal'nevostochnyj agrarnyj vestnik. – Far Eastern Agrarian Bulletin, 2022; 1 (61): 95–103 (in Russ.).
2. Krivutsa Z. F., Shchitov S. V., Kuznetsov E. E. Optimizaciya energeticheskih zatrat transportno-proizvodstvennogo processa [Optimization of energy costs of the transport and production process]. Dal'nevostochnyj agrarnyj vestnik. – Far Eastern Agrarian Bulletin, 2020;4(56): 151–155 (in Russ.).
3. Radnaev D. N. K metodike proektirovaniya tekhnologicheskih processov [To the methodology of designing technological processes]. Vestnik Buryatskoj gosudarstvennoj sel'skohozyajstvennoj akademii imeni V. R. Filippova. – Bulletin of the Buryat State Agricultural Academy named after V. R. Filippov, 2011; 1 (22): 71–75 (in Russ.).
4. Takhanov M. P., Osmonov O. M. Ustanovka po metanovomu sbrazhivaniyu [Installation on methane fermentation]. Proceedings from Current issues of engineering, technical and technological support of the agro-industrial complex: X Nacional'naya nauchno-prakticheskaya konferenciya s mezhdunarodnym uchastiem. – X National Scientific and Practical Conference with international participation. (PP. 202–205), Molodezhnyj, Irkutskij gosudarstvennyj agrarnyj universitet, 2022 (in Russ.).
5. Osmonov O. M. Osnovy inzhenernogo rascheta avtonomnykh geliobioenergeticheskikh ustanovok: monografiya [Fundamentals of engineering calculation of autonomous heliobioenergetic installations: monograph], Moskva, Energiya, 2011, 175 p. (in Russ.).
6. Takhanov M. P., Vasil'ev F. A. Sozdanie vozmushchenii v metantenke [Creation of disturbances in the digester]. Vestnik Irkutskoj gosudarstvennoj sel'skohozyajstvennoj akademii. – Bulletin of the Irkutsk State Agricultural Academy, 2017; 80: 143–148 (in Russ.).
7. Takhanov M. P. Ustanovka dlya anaerobnogo sbrazhivaniya [Anaerobic digestion plant] Patent RF, no RU2678673C1 yandex.patent.ru 2019 Retrieved from https://yandex.ru/patents/doc/RU2678673C1_20190130 (Accessed 25 December 2022) (in Russ.).
8. Takhanov M. P., Vasil'ev F. A., Evteev V. K. Razrabotka tekhnologii anaerobnoi pererabotki organicheskikh otkhodov sel'skogo khozyaistva [Development of anaerobic processing of organic agricultural waste]. Proceedings from Research and development for implementation in the agroindustrial complex: Mezhdunarodnaya nauchno-prakticheskaya konferenciya. – International Scientific and Practical Conference. (PP. 213), Molodezhnyj, Irkutskij gosudarstvennyj agrarnyj universitet, 2019 (in Russ.).
9. Takhanov M. P., Evteev V. K. Tekhnologiya anaerobnoi pererabotki zhivotnovodcheskikh stokov na krupnykh svinovodcheskikh kompleksakh [Technology of anaerobic processing of livestock spleen at large pig-breeding complexes]. Proceedings from Molodaya nauka agrarnogo Dona: traditsii, opyt, innovatsii. – Young Science of Agrarian Don: traditions, experience, innovation. (PP. 156–158), Zernograd, Azovo-Chernomorskij inzhenernyj institut Donskogo gosudarstvennogo agrarnogo universiteta, 2018 (in Russ.).
10. Vasil'eva A. S. Povyshenie effektivnosti anaerobnoi pererabotki navoznykh stokov svinovodcheskikh predpriyatii [Increase of the efficiency of anaerobic processing of manure drains of pig-breeding enterprises]. Extended abstract of candidate’s thesis. Blagoveshchensk, 2017, 18 p. (in Russ.).