Which of the following is not a type of hazardous waste incinerator?

The selection of pressurized as the answer is appropriate because pressurized incinerators are not recognized as a type of hazardous waste incinerator in standard waste management practices. Incinerators used for hazardous waste typically function at atmospheric pressure and are designed to operate efficiently while managing emissions and combustion temperatures. The primary types of hazardous waste incinerators include fluidized bed, fixed hearth, and rotary kiln, each of which has its own functionality and design suited for the safe and effective disposal of hazardous materials.

Fluidized bed incinerators utilize a bed of inert materials that are kept in motion by the introduction of air, allowing for efficient combustion. Fixed hearth incinerators rely on a stationary grate or surface where waste is burned, and rotary kilns employ a rotating cylinder to provide uniform heat and thorough mixing of the waste being incinerated. Each of these types is specifically designed for handling hazardous waste safely, mitigating the risk of environmental contamination. In contrast, pressurized systems are generally more associated with other industrial processes rather than hazardous waste treatment.