Eliminating Large Particle Carryover – Improving Milk of Lime Reactivity STT's Patent Pending VERTIMILL® Retrofit has exceeded performance expectations. After 8 months of operations: Elimination of large particle carry-over.; 16% reduction in lime consumption per ton of SO2 removed; Higher scrubbing efficiency was achieved (less SO2 discharged to the environment); Maintenance intervals and tank cleanout frequencies have been improved due to reduced largeparticle carry-over. This is a ‘Patent Pending’ improvement is suitable for all sizes of Lime Slaking VERTIMILL® in lime slaking duty.