00681naa#a2200181#i#450# EN\\bibl\119138 20260405201350.7 1815-588X 20260331b2026####ek#y0engy0150####ca RU Methods for urban wastewater sludge treatment Journal article Saint-Petersburg FSBEI HE "Emperor Alexander I St. Petersburg State Transport University" 2026 8 с. Journal article local Сточные воды. Свойства, обработка и очистка в целом. 628.31 Kapinos Ol'ga Gennad'evna Tvardovskaya Nadezhda Vladimirovna pgups.editorum.ru