00689naa#a2200181#i#450# EN\\bibl\119176 20260403214013.5 2949-2440 20260331b2026####ek#y0engy0150####ca RU Improvement of purification processes of polluted hydrogen sulfide-containing industrial effluents Journal article Astrakhan Astrakhan State Technical University 2026 7 с. Journal article local Установки и оборудование для обработки сточных вод. 628.32 Titova Liubov Mikhailovna Vakulenko Vadim Alexandrovich vestnik.astu.org