a small & good ppt .

1. PRESENTED BY:
TARUN CHOUDHARY

2. Outline
 Introduction
 Types of solid waste
 What is the solid waste management?
 Need of solid waste management
 Process of solid waste management
 4-R of SWM

3. Introduction
 Solid waste is unwanted & useless
material generated from combined
residential, industrial and commercial
activities.
 Solid waste is the waste material that is
found in solid form.
 Ex.- tires, scrap metals , furniture,
discarded appliances etc.


4. Types of solid waste
 Domestic wastes
o Wastes generated by household activities
o Ex- garbage, rubbish, ashes & residue etc.
 Commercial wastes
o Wastes that are generated by commercial
establishments
 Industrial wastes
o Discarded solid material of industrial
operations

5. Continue….
o Ex- domestic appliance, furniture, metals
etc.
 Construction waste
o Wastes generated from construction sites
o Ex- bricks, cement and waste iron etc.

7. What is the solid waste
management?
 Refers to garbage or trash management
 A system for handling all of the world’s trash be it
municipal waste collection, recycling programs,
dumps & incinerator.

8. Need of solid waste management
 Foremost mounting problems to most countries
 Hazardous to human health
 Causes depletion for lands(landfills)
 Can cause land pollution

9. Process of solid waste management

10. Collection
 Mechanical collection system
1. These systems consists of containers & truck
mounted lifting mechanism.
2. In full automatic system an articulated arm
mechanism is used which lifts & replaces
containers.
 Municipal collection systems
1. Rural collection system
2. Urban collection system
3. Regional collection system

11. Transportation
1. Loading location
2. Containertruck capacity
3. Capability & reliability
4. Safety & comfort
5. Tools- hand carts, tricycles, community
bin carrier

12. Treatment of solid waste
 Physical treatment methods
1. Primary treatment
2. Secondary treatment
3. Polishing
 Chemical treatment methods
1. Acidbase neutralization
2. Chemical extraction & leaching
3. Ion exchange
4. Chemical precipitation
5. Oxidation
6. reduction

13. Disposal of solid waste
 Open dumping
 Land filling
 Sanitary land filling
 Pyrolysis
 Incineration
 Composting
 Disposal into sea

14. Land filling
 In this method, solid waste are carried and
dumped into the low lying areas. the refuse is
filled up in layers of 1.5 m.
1. Advantages-simple and economical
• Skilled labour is not required.
• No costly plant & equipment required.
2. Disadvantages-large area required
• Use of insecticides is required

15. 4-R principle of SWM
 Recovery
 Reduction
 Reuse
 Recycling