Sensible energy required for sorbent regeneration can not be effectively recovered if solids are used, offsetting the significant heat capacity savings associated with using solids.
Only under a flat-rate tax system would a percentage gain on gross income translate into a comparable inflation-offsetting gain at the after-tax level.
In addition to voluntary methods of recoupment, employers commonly use payroll deduction, as well as offsetting the recoupment against future paper claims.
