| 摘要 |
FIELD: water supply. ^ SUBSTANCE: invention relates to the treatment of natural waters for household water supply and waste water treatment in filtering facilities. Granulated filtering material is produced from suspension containing Cambrian clay, dolomite, granite siftings, broken ceramic ware and glass, the suspension is dried in the boiling bed and burnt. ^ EFFECT: material with high sorption activity. ^ 2 tbl |
