Answer:
You must lift the sewage up to the place where the sewer pipe leaves the home. Most homes on level sites connected to septic systems have sewer lines close to grade level because these systems must be built shallow to perform. From the basement, sewage must be lifted up to the exit pipe usually inside the house.
Plumbing drains in the basement (and this would apply to a single sink) are directed into a sump or plastic or concrete pit built into the floor of the basement inside a closet or near the outside wall. The sump is flush with the floor and has a sealed lid. In the sump is a grinder pump that grinds the sewage into a slurry and pumps it up to the sewer in a small diameter pipe where it combines with the other household sewage and flows by gravity into the municipal sewer or the septic system.
Grinder stations can be installed by any plumber. They occasionally require maintenance, they make a little whirring noise a few minutes after you run water. Basement grinder stations are inferior to a gravity sewer. However many people are very happy with their basement grinders when there is no other alternative.