METHOD FOR DEPHOSPHORIZATION OF SEWAGE CONTAINING PHOSPHORUS

摘要: PURPOSE:To efficiently remove phosphorus, by packing a column with porous treatment material having specific void ratio and containing calcium silicate as main component contacting phosphorus-containing sewage said material. CONSTITUTION:A foaming agent such an aluminum powder is added to slurry silicious stock carcareous the resulting mixture subjected hydrothermal reaction under high temp. pressure condition obtain body of 50-90%. A packed passed through perform contact reaction. By this method, removal phosphorus can be performed. The reduced in effect utilized fertilizer.