| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for removing phosphorus from water using a solid particle including steel slag concerning the method for removing phosphorus contained in drainage, sewage or the like. SOLUTION: This method removes phosphorus from water to be treated containing phosphorus by passing the water to be treated containing phosphorus through a reactor filled with the solid particle comprising a slag which consists mainly of calcium oxide and silicon oxide to form a fluidized bed of the solid particle and loading a calcium hydroxide aqueous solution into the fluidized bed. Instead of calcium hydroxide, calcium chloride, and sodium hydroxide or calcium hydroxide can also be used. As the solid particle, a mixture of one kind, or two kinds or more of air-cooled furnace slag, water blast furnace slag and the steel slag is used. COPYRIGHT: (C)2007,JPO&INPIT
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