Solid waste disposal


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Solid waste disposal

  1. 1. Solid waste disposal
  2. 2. -solid waste is any unwanted materialthatis intentionally thrown away fordisposal.-Commercial Waste- waste from trade orbusiness.-Institutional Waste- waste frominstitutions ,like schools,hospitals, etc.
  3. 3. -Construction/Demolition Waste-Process Waste- generated frommanufacturing a product or doing aservice-Agricultural Waste-Nuclear Waste- to be discussed by theother group.-industrial waste- factory waste,usually hazardous
  4. 4. -Domestic Waste – residential waste * Biodegradable / Compostable waste -Decomposed to make fertilizer, or compost. -Composes majority of solid waste -ex. Fruit peelings, leftover * Recyclable waste -Waste that is processed again to make something else - Ex. PTE bottles, paper, metal * Toxic/Hazardous Waste - Waste that doesn’t fall under any of the other threecategories -Cannot be composted, recycled, and isn’t toxic. -Ex. Plastic , ceramic, nailpolish
  5. 5. Solid Waste Disposal Methods -Compositing-decaying ofbiodegrable material into fertilizer,or compost.-Incineration-involves controlledcombustion of waste in a treatmentfacility
  6. 6. -Landfills * Open Dump –waste is simply dumped inopen land and low- lying areas. * Semi-controlled Landfills- dumped waste iscompacted and covered with soil. * Sanitary Landfills- engineered system oflandfill - Ensures that there are no leaks oftoxic waste into the soil, makes sure it is not accessible by pests. It’s very controlledand very sanitary. - common in first world countries.
  7. 7. Solid Waste Disposal IssuesGeneral Issues in Asia -The amount of solid waste generation isusually based on economic development,industrialization, population density,urbanization, and consumption.- This is even worsened by the fact that thereare not enough institutions to effectivelydispose solid waste, because of the lack offinancial resources.
  8. 8. -Climate, topography, and geographical location greatlyaffect SWD.North Asia-Earthquakes and volcanic eruptions can disrupt SWDsites in North Asia.-North Asia is highly industrialized , so majority of itswaste are toxic, factory waste.East Asia- Solid Waste is increasing by more than 10 % a year inChina because of rapid population growth and boomingeconomic activity.-east Asia is also becoming very urbanized, so there arehigh rates of construction and demolition wastes.
  9. 9. -East Asia is prone to earthquakes andtyphoons.West and South Asia-Overpopulation in South and West Asiagreatly affect SWD.-Many SWD are being used for shelter.-South and West Asia are becoming moreindustrialized, so factory wastes pollutesurrounding areas.
  10. 10. Southeast Asia-SWD is very difficult in SEA becauseof its geographic location; theclimate and the topography affect .areas for SWD.-Industrialization of South East Asiagenerates toxic factory waste.-High population density increasesolid waste, and fills up SWD site.
  11. 11. Effects of Improper Solid Waste Disposal• Improper SWD causes air, land, and water pollution.• Uncontrolled burning and improper incineration generates carbon and greenhouse gases, polluting the air• Toxic wastes dumped in open landfills can pollute the soil, and it can seep into ground water supplies ,polluting soil and water
  12. 12. • Solid waste can clog drains and sewers, creating stagnant water for breeding insects.• Land can get degraded and poisoned.-because of polluted air, land, and water , it can cause diseases and sickness in humans.-improper SWD affects Asian economy.*the government ends up paying for the impact of acid rain on crops, medical bills of citizens , lost work from sick workers, disaster relief after floods and earthquakes , etc.
  13. 13. • China loses a total of $1.4 trillion annuallytlo cope with the effects of improper solid waste disposal! (that’s 187 times our national budgets!)• Solution to Improper Solid Waste Disposal The government in Asia should work to invest on proper SWD facilities, like sanitary landfills and incineration factories. They should also improve solid waste collection, by making sure they collect most of the waste and segregating it to make disposal easier. - Although it is expensive to invest in such, it is far cheaper in the long run. - They should also increase awareness throughout all sectors of society on how they can lesson solid waste, even in their own homes. - Without awareness , no solution is possible