Ash from incineration of solid waste must generally be disposed of as what under RCRA?

Ash from incineration of solid waste must generally be disposed of as what under RCRA?

• A. Can be used as fertilizer
• B. Can be spread on playgrounds
• C. Is often used in organic food production
• D. Must generally be disposed of as hazardous waste under RCRA

Answer: (D)

Under RCRA, waste is classified as hazardous if it exhibits a toxicity characteristic or is listed as hazardous waste. Incineration ash from municipal solid waste often contains hazardous constituents, such as heavy metals and other toxic compounds, which can meet the toxicity thresholds when leached. Because of that, the ash is generally treated as hazardous waste and must be disposed of in a permitted hazardous-waste facility with proper handling and tracking. Using such ash as fertilizer, spreading it on playgrounds, or employing it in organic food production would risk releasing hazardous contaminants into the environment and people, unless the ash has been proven non-hazardous through testing and regulatory approval. So, the general rule is that incineration ash must be disposed of as hazardous waste under RCRA.

Under RCRA, waste is classified as hazardous if it exhibits a toxicity characteristic or is listed as hazardous waste. Incineration ash from municipal solid waste often contains hazardous constituents, such as heavy metals and other toxic compounds, which can meet the toxicity thresholds when leached. Because of that, the ash is generally treated as hazardous waste and must be disposed of in a permitted hazardous-waste facility with proper handling and tracking. Using such ash as fertilizer, spreading it on playgrounds, or employing it in organic food production would risk releasing hazardous contaminants into the environment and people, unless the ash has been proven non-hazardous through testing and regulatory approval. So, the general rule is that incineration ash must be disposed of as hazardous waste under RCRA.