00762naa#a2200193#i#450# EN\\bibl\50059 20240429050519.1 2686-9896 20220516b2022####ek#y0engy0150####ca RU SORPTION OF HEAVY METAL IONS BY NATURAL HEILANDITE MODIFIED WITH ORGANOSILICON COMPOUND Journal article Angarsk Federal State Funded Educational Establishment of Higher Education «Angarsk State Technical University» 2022 1 с. Journal article local Химия. Кристаллография. Минералогия. 54 Chugunov Aleksandr Dmitrievich Filatova Elena Gennad'evna Nikolaenko Rodion Aleksandrovich angtu.editorum.ru