most multivalent cations are conver

most multivalent cations are converted into insoluble hydroxides or carbonates. Thus, this process is highly effective for waste components with high levels of toxic metals. However, the presence of certain inorganic compounds and organic compounds in the waste can create an interference mechanism delaying the setting and curing of the final product. Biczok (1967) presented two lists of industrial wastes that are harmless or deemed to be aggressive to cementitous products. The list of wastes that can be tolerated includes