Resource-saving technology for oily wastewater treatment in agro-industrial complexesO.R. Ilyasov, S.N. Koshelev, O.V. Kovaleva, V.S. Khomyakova and O.A. BykovaE3S Web Conf., 282 (2021) 05004DOI: https://doi.org/10.1051/e3sconf/202128205004