Pretreatment and Post Treatment Options

This chapter deals with the primary treatment where alternatives have been identified for the detoxification of the waste or waste stream, other treatment technologies may be required to prepare the waste for treatment. Additional treatment technologies may be required to prepare residues from the treatment process for ultimate disposal. These pretreatment technologies are directed toward concentrating or sizing the waste to facilitate treatment. Furthermore, most treatment processes produce residues which may require additional treatment before land disposal. Most treatment options for detoxifying the hazardous constituents from Resource Conservation and Recovery Act (RCRA) facilities must have a uniform feed to the process. However, the media in which hazardous constituents are located are not generally homogeneous. Thus, some form of pretreatment of the waste or waste medium will probably be required to prepare the waste for further treatment by chemical, biological or thermal means.