GreenTech technologies for sustainability of the national economy Turmushbek Dzhancharov, Ayuna Fedotova, Tatyana Kozenko, Yuriy Arylov, Victoria Romadikova and Nina Tsuglaeva E3S Web Conf., 486 (2024) 04015 Published online: 07 February 2024 DOI: 10.1051/e3sconf/202448604015