| http://www.w3.org/ns/prov#value | - The process as defined in claim 2, wherein said binding is conducted by treating said cake with an excess of precipitating agent solution, separating the cake from the used precipitating solution; and further including the steps ofcombining the acidic aqueous solution filtered off from the fly ash and the used precipitating agent solution; and treating the total liquid with a precipitating agent f
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