METHOD OF PRODUCTION OF FILTERING MATERIAL FOR WATER PURIFICATION FROM IRON-CONTAINING ADMIXTURES AND METHOD OF WATER PURIFICATION USING FILTERING MATERIAL Russian patent published in 2008 - IPC B01D39/06 B01J20/06 C02F1/28 

FIELD: chemistry.

SUBSTANCE: as initial raw material for filtering material production preliminary accumulated and dehydrated sediment from water purification, which mainly contains contaminant colloid particles, having chemical affinity with iron, is used. Sediment is pressed in briquettes with density 2.6 g/cm³ and fired by thermal sintering into conglomerate at temperature 1200-1400°C. Water purification is carried out on produced filtering material.

EFFECT: cheap and available raw material for production of filtering material and increase of its absorptive ability.

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