TY JOUR TI Cascade filtering method through natural sorbents using ferrite reagents KW sorbent KW cascade filtration KW ferrite suspension KW wastewater KW natural zeolite KW reagents JO Melioration and Water Management AU Denisova, M.A. AU Bocharnikov, V.S. PY 2020 IS 2019 PB ANO Editorial Board Melioration and water management