Introduction Waste definition Classification and types of waste Waste management methods 3 Rs concept Factors affecting solid wastes Conclusion References

1. Solid waste
management
Submitted by
Group 2

2. Contents
• Introduction
• Waste definition
• Classification and types of waste
• Waste management methods
• 3 Rs concept
• Factors affecting solid wastes
• Conclusion
• References

3. Solid waste management
Solid waste management is a
process of collection
,transportation and disposal of
solid waste in a systematic
,economic and hygienic manner.

4. Waste
• Any rubbish , trash refuse, garbage and junk is termed as waste .
• Any unwanted and useless material

5. Classification of solid wastes
On the base of origin
• residential
• Commercial
• Institutional
• Municipal
• Industrial
• Agricultural

6. Continu…..
On the base of physical nature
• Garbage
• Ashes
• Combustible and non combustible wastes
• Demolition and construction wastes
• Hazardous wastes
• Solid wastes
• Liquid wastes
• Gaseous wastes

11. Engineered systems for SWM

12. Methods For The Treatment Of Solid
Wastes
Open Dumps
Landfills
Anaerobic DIGESTION
Composting
 Vermicomposting
Encapsulation
Incineration

13. DUMPING
•Open Dumps Into Low Lying Areas
•Done For Dry Waste
•Waste Dumps Are Exposed To Rodents And Flies
•Dispersion By Wind
•Pollution Of Surface Water

15. LANDFILL
• Material Placed In A Trench
• Covered By Soil At The End Of Working Day
• 3 Methods
Trench (Trench Of 6-10 Feet Deep And 12-36 Feet Wide )
Ramp (Suitable For Sloppy Land )
• Refuse Is Covered With Earth Upto 30cm
Area method (refuse is packed in uniform layers up to 6 feet),each
layer is sealed with mud up to 12 inch .

17. Continu…..
Changes
• Chemical
• Bacteriological
• Physical
• Rise in temperature up to 60 degree
• 4-7 days ,killing of pathogens
• 4-6 months complete decomposition