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  2. Hazardous waste in the United States - Wikipedia

    en.wikipedia.org/wiki/Hazardous_waste_in_the...

    The "Derived-from Rule" (40 CFR Section 261.3(b)) applies to a waste that is generated from the treatment, storage or disposal of a hazardous waste (for example, the ash from the incineration of hazardous waste). Wastes "derived" in this manner may be regulated as hazardous wastes.

  3. Health effects of coal ash - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_coal_ash

    A coal-fired power plant with ash ponds. Coal ash, also known as coal combustion residuals (CCRs), is the mineral residue that remains from burning coal. Exposure to coal ash and to the toxic substances it contains may pose a health risk to workers in coal-fired power plants and residents living near coal ash disposal sites.

  4. Activated carbon - Wikipedia

    en.wikipedia.org/wiki/Activated_carbon

    Activated carbon. Activated carbon, also called activated charcoal, is a form of carbon commonly used to filter contaminants from water and air, among many other uses. It is processed (activated) to have small, low-volume pores that greatly increase the surface area [1] [2] available for adsorption or chemical reactions [3] that can be thought of as a microscopic "sponge" structure (adsorption ...

  5. Feds reject Alabama’s plan to dispose of toxic waste from ...

    www.aol.com/news/feds-reject-alabama-plan...

    For the first time, the EPA has rebuffed a coal ash waste plan from the Alabama Department of Environmental Management, a decision advocates are calling “a significant milestone” in protecting ...

  6. Wood ash - Wikipedia

    en.wikipedia.org/wiki/Wood_ash

    Wood ash is commonly disposed of in landfills, but with rising disposal costs, ecologically friendly alternatives, such as serving as compost for agricultural and forestry applications, are becoming more popular. [11] Because wood ash has a high char content, it can be used as an odor control agent, especially in composting operations. [12]

  7. Did TVA hide its plans to dispose of coal ash in Memphis ...

    www.aol.com/news/did-tva-hide-plans-dispose...

    The federal power provider abruptly canceled plans to tell the public where it planned to bury Memphis coal ash — in Memphis.

  8. TVA’s coal ash disposal plan leaves South Memphis ... - AOL

    www.aol.com/news/tva-coal-ash-disposal-plan...

    TVA plans to dispose of its ash by trucking it across south Memphis and putting it in the South Shelby Landfill. This plan will create nearly a decade of additional traffic, noise, air pollution ...

  9. Ash pond - Wikipedia

    en.wikipedia.org/wiki/Ash_pond

    The wet disposal of ash into ash ponds is the most common ash disposal method, [9] but other methods include dry disposal in landfills. Dry-handled ash is often recycled into useful building materials. Wet disposal has been preferred due to economic reasons, but increasing environmental concerns regarding leachate from ponds has decreased the ...

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