How to remove high ridges on concrete flooring
I would use a angle grinder with a carbide block / diamond impregnated masonry grinding wheel.
the concrete can be kept damp with a spray bottle to limit the airborne dust, make sure to use a GFCI protected receptacle or extension cord when working with power tools and water.
This method will make a slurry that is cleaned up with a sponge and water.
Your high spots don’t look that severe and could be cut down with a 4-1/2” grinder.
The wheels cost for a 4-1/2” grinder run from 40-100$ I find these are better for surfacing than abrasive disks those don’t work as well with water but can be used it will take a few and as these get smaller it is easy to create divots where the wheels stay the same size. Of corse a larger grinder like a 9-1/2” with a larger wheel will be easier, faster and less chance if divots but cost more
A 4-1/2” Grinder can do this at a reasonable cost even if you need to purchase a GFCI extension cord so you can keep the concrete damp and eliminate the dust.