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Comprehensive Approaches to Solid Waste Management: From Composting to Energy Recovery

This lesson explores various methods of managing solid waste, focusing on biodegradable, organic, and toxic materials. It discusses landfills, composting, incineration, and innovative waste-to-energy technologies. Emphasizing the importance of managing leachate and the treatment of hazardous materials, the lesson also introduces advanced techniques like vitrification, which converts waste into a stable glass form to mitigate environmental risks. By understanding the complexities of solid waste types and disposal methods, we can adopt more sustainable practices for our planet's health.

michael-conner
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Comprehensive Approaches to Solid Waste Management: From Composting to Energy Recovery

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  1. Lesson Seven Solid Waste

  2. Organic biodegradable infectious Recalcitrant Toxic Metals Earth and soil Plant mater Liquids Building materials Type of material in solid waste

  3. Land fill, Composting, Incineration Waste to Energy Other Alternatives Methods of Disposing Solid Waste

  4. Land Fill

  5. Leachate Stopping leachate Leachate Treatment Recycling Methane Gas Byproducts Land Fill

  6. Conventional Incineration Cyclone furnace Circulating bed combustor Incineration

  7. Need to maintain high temperature Mix waste and fuel Extra fuel may be needed Operation Conventional Incinerator

  8. Conventional Incineration Plant

  9. INCINERATOR Wastes of a toxic or hazardous nature are mixed with ambient air and fuel, and burnt. 2 ENERGY RECOVERY BOILER Hot gases are then pass into boiler. 3 QUENCHFlue gases are sprayed with water to cool them before they enter downstream equipment.. 4 SCRUBBERFinal cleaning of flue gases is done in the scrubber. 5 INDUCED DRAFT FAN 6 STACK Incineration Plant

  10. In the USA Covanta Co: 32,000 tons/day -- > 800 megawatts 1,800 degrees F Ash is 10 % of original offset the need to use 1.67 million barrels of oil recover ferrous and non-ferrous metals Waste to Energy

  11. Microwaving hospital waste Vitrification Bioremediation Other Alternatives

  12. Vitrification

  13. A vitreous state is a noncrystalline solid or glass For hazardous or radioactive wastes, contaminants > extremely high temperatures The organic compounds are destroyed inorganic elements become part of the glass's molecular structure. Radioactive elements can't leach out. Vitrification

  14. metals, plastic, and paper Recycling of Material

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