SOLID WASTE MANAGEMENT

PRESENTED BY:

TARUN CHOUDHARY

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

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.

Types of solid waste Domestic wastes

o Wastes generated by household activitieso Ex- garbage, rubbish, ashes & residue etc.

Commercial wasteso Wastes that are generated by commercial

establishments

Industrial wasteso Discarded solid material of industrial

operations

Continue….o Ex- domestic appliance, furniture, metals

etc.

Construction wasteo Wastes generated from construction siteso Ex- bricks, cement and waste iron etc.

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.

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

Process of solid waste management

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 systems1. Rural collection system

2. Urban collection system

3. Regional collection system

Transportation1. Loading location

2. Container\truck capacity

3. Capability & reliability

4. Safety & comfort

5. Tools- hand carts, tricycles, community bin carrier

Treatment of solid waste

Physical treatment methods1. Primary treatment

2. Secondary treatment

3. Polishing

Chemical treatment methods1. Acid\base neutralization

2. Chemical extraction & leaching

3. Ion exchange

4. Chemical precipitation

5. Oxidation

6. reduction

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

Land fillingIn 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

4-R principle of SWMRecoveryReductionReuseRecycling