TY JOUR TI USE OF ACTIVATED NATURAL ZEOLITE AS ADSORBENT FOR PURIFICATION OF NATURAL WATER FROM METAL IONS KW ZEOLITE-CONTAINING ROCK KW ACTIVATION KW WATER PURIFICATION KW SORBENTS KW METAL IONS KW SORPTION ISOTHERMS JO Herald of Technological University AU , .. AU , .. AU , .. AU , .. PY 2025 IS PB Kazan National Research Technological University