Phosphorus elution prevention procedure of the brewer's grain briquett, after dehydrating drying the water treatment material null brewer's grain which consists of the brewer's grain briquett, and the said brewer's grain

摘要

PROBLEM TO BE SOLVED: To provide a method for a phosphorus elution-prevention treatment of a beer lees briquette, a phosphorus elution-prevention-treated beer lees briquette, and a water-purifying material made of the beer lees briquette. SOLUTION: The method for a phosphorus elution-prevention treatment of a carbonized product (beer lees briquette), obtained by baking a molded product which is prepared by dehydrating, drying, heating and compressing beer lees, comprises adding, before molding, a substance (for example, a calcium compound such as hydrated lime, calcium carbonate and the like) which reacts with phosphor to form a hardly water-soluble substance (for example, calcium phosphate).