Where does biohazardous waste go?

Biohazardous waste like that found in hospitals is usually incinerated. Other types of biohazard waste like chemical waste require specialized methods. There are some incinerators that use very high temperatures in order to break the chemicals down. Kodak use to operate one in Rochester, NY for such purposes.

http://rochester.ynn.com/content/top_stories/343554/kodak-closes-incinerator/