Final answer:
Interceptors are necessary for the management of liquid wastes containing grease, soap, and chemicals. They help in handling hazardous waste such as dioxin-bearing wastes and chlorinated aliphatic hydrocarbons, ensuring environmental safety and proper sewage system operation.
So the correct answer is option (D).
Step-by-step explanation:
Interceptors are necessary for the proper handling of liquid wastes when they contain hazardous substances that could jeopardize the environment or the operation of a sewage treatment facility. Based on the question, the correct answer is D. All of the above, which includes grease, soap, and chemicals. Specifically, interceptors help manage wastes such as dioxin-bearing wastes, chlorinated aliphatic hydrocarbon production waste, wood-preserving wastes, petroleum refinery wastewater treatment sludges, and multisource leachate.
The provided references indicate that it is essential for the chemicals in the waste to be unused and to be in the form of a commercial chemical product. This ensures that the waste can be identified and managed appropriately. Therefore, interceptors are an essential component of managing industrial waste and protecting both sewage systems and the environment.