Sources of waste

• Sources of waste:

  • Mining and quarrying ~ 23%
  • Manufacturing ~ 20%
  • Municipal solid waste ~ 20%
  • Construction and demolition ~ 30%
  • Other ~ 7%
• Factors impacts composition of waste:

  • Economic development
  • Cultural norms and values
  • Location
  • Energy sources and climate

  As countries develop and become more urbanised, consumption of inorganic materials like plastic increases while organic waste decreases
• Primary sources of waste:

  1. Residential = from homes ~ e.g. paper, plastic, glass, e-waste
  2. Industrial = manufacturing, construction, power plant ~ e.g. packaging, food, ashes
  3. Commercial = hotels, restaurants ~ e.g. plastic, food, metal
  4. Institutional = schools, hospitals ~ e.g. plastic, food, metal
  5. Construction and demolition = demolition of buildings, road repairs ~ e.g. bricks, tiles, steel, dirt
  6. Urban services = cleaning streets, parks etc ~ e.g. tree trimmings, park waste