PHOSPHORUS RECOVERY LIQUID, METHOD FOR PRODUCING THE SAME, AND METHOD FOR RECOVERING PHOSPHORUS FROM WASTE WATER CONTAINING PHOSPHORUS

摘要

PROBLEM TO BE SOLVED: To provide a phosphorus recovery liquid which, when mixed with waste water containing phosphorus to purify the same, shows a large dephosphorylation effect without subjecting the waste water to a decarbonation treatment, and which enables recovery of a solid recovered material, which can be used as phosphorus-containing resources, in a high recovery rate and in a short time in a large quantity, the phosphorus recovery liquid, moreover, being able to be produced efficiently by a simple method.;SOLUTION: Provided is a phosphorus recovery liquid for recovering phosphorus from waste water containing phosphorus. An alkaline slurry comprising porous calcium silicate-containing granules, containing calcium silicate hydrate as a main component, and water, is subjected to an acidification treatment to elute calcium contained in the calcium silicate-containing granules into the liquid, and from the obtained calcium-containing slurry, solids are removed to obtain the phosphorus recovery liquid.;SELECTED DRAWING: None;COPYRIGHT: (C)2016,JPO&INPIT