METHOD FOR REMOVING PHOSPHORUS FROM WATER

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...

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Bibliographic Details
Main Authors MIKI OSAMU, HIRAI NAOKI
Format Patent
LanguageEnglish
Published 21.12.2006
Subjects
CHEMISTRY
METALLURGY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary: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
Bibliography:Application Number: JP20050171032