Catastrophes, fractals and chaos in geoengineering and water treatment systemsIgor Yeremeyev, Alina Dychko, Volodymyr Kyselov, Natalya Remez and Ievgen KhlobystovE3S Web Conf., 280 (2021) 02009DOI: https://doi.org/10.1051/e3sconf/202128002009