||Manganese zeolite - used for oxidising and filtering, obtained as a result of processing glauconite; effectively removes iron, manganese and hydrogen sulfide from the natural waters.
||A black filter bed used for removal of iron, manganese, hydrogen sulphide, arsenic and radium from water resources.
||A filter bed commonly referred to as "a synthetic Greensand"; used for removal of iron, manganese and hydrogen sulphide (H2S) compounds from water.
||Filtration material used for removing manganese. Round grains of rough surface have a slightly alkalising internal part covered with catalytic layer of hydrated manganese oxide.
||Filtration material of rough surface of the grains and sharp edges that has shown very good effects of filtration; slightly alkaline environment is favourable for the processes of removing iron and manganese.
||A filter bed for catalytic removal of manganese compounds from water.
||a filter bed (mineral form of manganese dioxide) used for removal of iron, manganese and hydrogen sulphide.