Earthwork

摘要

Problem to be solved: to provide an earthenware material in which the eluting amount of heavy metals is small despite the use of waste containing heavy metals.Solution: the waste material containing heavy metals and the granular material containing ferrous chloride, and the ratio of the ratio of Fe (Fe2O3) to Mg (Fe2O3) and the ratio of Mg (MgO conversion) in the mass of 100 mass% excluding the total weight of the earthwork material to the loss of strong heat, is 1.0 to The material of the ratio of CL to the ratio of S (SO3 conversion) is 0.45 to 2.30.A mixing step of mixing a mixture containing heavy metals and ferrous chloride to obtain a mixture andGranulated the mixtureIt is an earthenware material made of granular materialIn the mass 100% by mass from the total mass of the earthwork material except for the strong heat lossThe ratio of Fe (Fe2O3) to Mg (MgO conversion) is from 1.0 toA method of manufacturing an earthenware material comprising a granulation process for obtaining a clay material having a ratio of CL to a ratio of S (SO3) to 0.45 to 2.30.No selection