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Solid waste management

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waste management and discover , recycle and reuse

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Solid waste management

  1. 1. Discover, recycle and reuse
  2. 2. Solid waste management “It involves the collection, transport , processing , recycling or disposing and monitoring of solid waste material”
  3. 3. Improper management  Improper disposal Threats public health .Waste enhances insects growth act as vectors of diseases (transmit pathogens).  It leads to terrestrial and aquatic ,air pollution and water pollution .  it causes Technical and environmental difficulties , economic and social problems
  4. 4. Objective for SWM (solid waste management)  Reducing the quantity of toxic and hazardous chemicals and materials acquired, used, or disposed off by the agency  Increasing diversion of solid waste as required.  Maintaining waste recycling programs .  To Provide efficient and economical way of reuse of collections through recycling.  To provide Source for Energy generation  To Reuse and Recover the materials from waste.
  5. 5. TYPES OF WASTES residential commercial industrial Municipal solid waste Hazardous waste agricultural mining construction Municipal solid waste
  6. 6. Methods of SWM  Composting  Incineration or combustion  Landfilling
  7. 7. Composting  Composting involves the placement of carcasses beneath organic materials, which promotes decomposition at elevated temperatures and destroys pathogens present in the carcasses”
  8. 8. Indoor composting  It has been widely used by the poultry industry for bird mortalities.  Indoor composting is less affected by weather events, ambient temperatures and seasonality and more protected from wind, scavengers.
  9. 9. Outdoor composting  It involves placement of carcasses in compost piles that are long, narrow windrows or trapezoidal shaped and above ground.  May affected by weather events, ambient temperatures and seasonality
  10. 10. Procedure:  Place the carcass (or carcasses) on the bulking agent. If you’re composting calves or other smaller animals, place them starting at the back in a single layer, at least six inches apart.  Cover the carcass with another 12 inches of bulking agent. If the bulking agent does not feel moist, add water before covering the carcass  Record the species, weight, date, and amount of bulking material used  When the first bin is full or the pile is as tall as you can work with, start a second bin/pile if you have more mortalities.
  11. 11. Incineration  Waste treatment that involves combustion of disposible substances at high temperature results in ash, gases & heat.  Chemical process :Combustible part is combined with O2  CO2 + H2O (oxidation)
  12. 12. Open type incineration  Open type incineration involves combustion of solid material at open field using fuels (diesel, jet fuel,coal,)
  13. 13. Close type incineration  Close type incineration is carried out by close incinerator by using fuels such as Gas
  14. 14. Landfill method  Ritual act of placing a dead person or animal, and/or objects into the ground. This is accomplished by excavating a pit or trench.  Hazards and toxic substance can be dumped into soil by landfill method in order to prevents spreading
  15. 15. Precautions while selecting site for landfilling  Not floody area  500 feet from residences, livestock facilities and adjacent pastures owned or leased by another person.  300 feet from a road.
  16. 16. thanks Conducted by Ali saqlain from Pakistan As_saqlain@yahoo.com

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