Example Problem Statement

Using the data below, calculate the composition of the generated waste stream.

Remember: Generated=Disposed+Recycled+Diverted(Food Waste)

Use of food waste grinders:

• 20% of the homes have them
• 25% of the food generated in homes with food grinders is ground and discharged to the sewer system

Waste recycling:

• 11% of the generated MSW is recycled
• The recycled MSW has the following composition
  • Paper - 50%
  • Cardboard - 10%
  • Plastic - 6%
  • Yard wastes - 8%
  • Tin cans - 4%
  • Glass - 18%
  • Aluminum - 1%
  • Nonferrous metal - 3%

Disposed waste composition

Component	Disposed Waste (lb)
Food Waste	9
Paper	34
Cardboard	6
Plastic	7
Textile	2
Rubber	0.5
Leather	0.5
Yard Waste	18.5
Wood	2
Glass	8
Tin	6
Aluminum	0.5
Other Metals	3
Dirt, Ash, etc.	3
Total:	100