00558naa#a2200193#i#450# EN\\bibl\132482 20260804075744.2 3034-4689 20260702b2026####ek#y0engy0150####ca RU STUDYING WATER DEMANGANATION FROM SURFACE SOURCES BY SORPTION Journal article Kazan Kazan National Research Technological University 2026 5 с. Journal article local Busarev A V Sheshegova I. G. Kurbatova E. I. vestniktu.ru