MAGNESIUM COMPOUND, ITS MANUFACTURING METHOD, PHYTOPLANKTON REMOVAL METHOD USING IT, AND SEWAGE TREATMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a magnesium compound facilitating recovering of phosphoric acid and ammonium nitrogen in phytoplankton like water bloom and sewage by supplying magnesium ions near the water level and a manufacturing method thereof, and a removal method of phytoplankton like blue-green algae and a sewage removal method using the same.

SOLUTION: This magnesium compound manufacturing method comprises a slurry manufacturing process S1 for forming the magnesium compound slurry by mixing magnesium oxide, hydrochloric acid or magnesium chloride with water; a foam forming process S2 for forming foam by applying a foaming means to the magnesium compound slurry; a dividing process S3 for dividing the magnesium compound into particles before or after the foam forming process, or after a curing process; and the curing process S4 for aging and solidifying the foam.

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