This is a pretty good article, if not terrible specific about the chemicals.
The high points :
– Matting – same song we always sing – get lot’s of it. Also talks about periodically extracting the mats if they are owned rather than rented.
– Targeted frequent extraction of areas near entries – same song we always sing. We always recommend frequent extraction of high traffic areas and little or no extraction of low soil areas, even tho cleaning everything on a lower frequency would be more profitable for us.
– Special chemicals targeted at salt – This is one we don’t push as much as we should. Some form of neutralizer should be applied as needed to areas that discolor / absorb a lot of ice melter. Vinegar is an inexpensive and frequently used option – salts are alkaline so you need some acid – but it’s a little rough on the carpet if overused.