MULTIFUNCTIONAL MODIFIER, NON-HEATING MODIFICATION TREATMENT METHOD AND POLLUTION-FREE PLANT GROWING MATERIAL

摘要

PPROBLEM TO BE SOLVED: To safely and inexpensively provide a recycling material capable of regenerating/utilizing phosphorous-containing incineration ash in a low enviromental load without exerting evil on the living environment by subjecting particolates of phosphorous-containing incineration ash composed of sludge iincineration ash or the like, in which water elution harmful elements coexist, to simple detoxification treatment and configuration treatment at least at ordinary temperature, thereby modifying the phosphorous-containing incineration ash iinto a bound-shaped body composed of a pollution-free type composite matrix. PSOLUTION: The modification method comprises a series of working steps composed of: a blending step where phosphorous-containing incineration ash in which harmful substance is coexistent is admixed with a fixing agent and an insolubilization agent via water, so as to be a water-containing admixture; a configuration step where the water-containing admixture is subjected to working configuration, so as to be a water-containing configurated material; and an aging step where the water-containing admixture or the water-containing configurated material is left standing in an atmosphere in the range from ordinary temperature to 100C, and is subjected to modification treatment. Further, the method is characterized in that phosphorous-containing incineration ash is added to a series of the working stages. PCOPYRIGHT: (C)2008,JPO&INPIT