Study and analysis of corrosion in sewage collectors Makhmud Aliyev, Dildora Maxmudova, Anatolii Gurinovich, Zarif Tursunov and Sardor Mamadiyorov E3S Web Conf., 627 (2025) 05008 Published online: 16 May 2025 DOI: 10.1051/e3sconf/202562705008