processing calcite mm,Upflow Calcite Contactor Study - Texas Water Development BoardThe effluent is then sent to a second RO process to recover additional water. One such precipitative softening technology is the “pellet softening” process, where dried pellets that are rich in calcite content are recovered at the end of the softening step. The size of the pellets range from 0.4 to 1.4 mm, and can potentially be.processing calcite mm,Crystal Growth and Dissolution of Calcite in the Presence of Fluoride .Dec 7, 2009 . Supersaturated and undersaturated solutions with respect to calcite were prepared for the growth and dissolution experiments, respectively. The concentration range of solutions containing fluoride ions varied between 0.025 and 50 mM. The crystal growth rates were measured from the step growth of.