[en] A general purpose dynamic optimization scheme suitable for high level waste (HLW) complex operations has been developed. The optimizer is interfaced with the SPEEDUPTM based dynamic simulator ProdMod for flow of information between the optimizer and simulator, while the optimization is performed in the stand-alone FORTRAN based optimizer. The linear constructs and the mapping algorithm of the ProdMod have been used in the optimization scheme for the interface. The optimization scheme has been successfully implemented in generating waste blending batch sequences for one of salt processing options at the Savannah River Site (SRS) HLW complex. Parametric studies demonstrate that the devised optimization scheme is a realistic approach for guiding the operation of the HLW complexes