Design Considerations for Steam Stripping of Kraft Mill Foul Condensates, 1993 Environmental Conference Proceedings
Steam stripping is a viable in-plant treatment method for reducing the BOD and odor discharged with kraft mill foul condensates. The stripping process involves the vaporization of the BOD contributing compounds from the foul condensates in a stripping column and destroying these vapors by thermal oxidation. The operating cost for stripping is mainly a result of steam costs. This cost can be reduced by:
- Using waste steam as the heat source for stripping.
- Recovering heat from the stripper column’s exhaust into usable heat sinks.
- Reducing the flow of foul condensate collected for stripping by condensate segregation.
Stripped condensates from a stripping system are relatively clean and can be re-used in the process for applications such as brown stock washing. The preferred devices (in order of preference) that can be used to thermally oxidize the vapors from a stripper system are Lime Kilns, Power/Steam Boilers, and Dedicated Incinerators.
Design Considerations for Steam Stripping of Kraft Mill Foul Condensates, 1993 Environmental Confere
