PWM & Recycling Technology - P2

Plastic waste

management and

recycling technology

Plastic waste Management &

Recycling Technology

22/08/14 – In Project Proposal

INTRODUCTION

OBJECTIVES INVOLVED

CASE STUDY

EXISTING PROBLEMS

REMEDIAL MEASURES

CONCLUSION

REFERENCE

objectives

To emphasize the reduced use of plastic and the

beneficial management of plastic waste.

Efficient transformation of plastic into energy and fuel.

Making our environment an eco friendly zone.

Modify the design of recycling Machines.

Install the recycling unit at TNAU.

Compare the envi.factors of Coimbatore with other

cities.

Making our Eco fest - 15------Plastic free & Models

Plastics

1.PET

2.HDPE

3.PVC

4.LDPE

5.PP

6.PS

7.OTHERS

Drink bottles and oven trays manufacturing.

Bottles for milk and washing up liquids.

Pipes and fittings

Carrier bags and garbage bin liners

Medicine bottles

Packaging pellets, Fast food trays etc..,

Mostly not available in suffi.quantities for recycling

Distribution of plastic in

manufacturing sector

18.60%

11.90%

10%

7.40%7%

6.70%

6.70%

5.20%

4.00%

3.40%

2.60%

2.20%1.70%

1.60% 1.40%

1.20%

8.50%

chips and conf bags bottles/caps and lids PET bottles supermarket retail bags

straws garbage bags packaging food bags

cling wrap fruit juice bottles softdrinks/water cups/utensils

food containers milk bottles pack rings cigarette lighters

Plastic waste sources

Plastic Wastes

Others

MunicipalIndustry

Methodology

Processing

Segregation

Selection

Recycling technology

Primary recycling - Involves processing of waste

into a product of similar characteristics.

Secondary recycling - Involves processing of waste

plastic into materials having different characteristics.

Tertiary recycling - Involves production of basic

chemicals and fuel from segregated municipal waste.

quaternary recycling - Involves energy extraction

by burning and incineration.

forms of recycling

Raw Product

Make a

Recycling

1.Mechanical Recycling

Chemical Recycling

Reactions

Feedstock

Fuel, Oil

Industries

2.Chemical Recycling

3.Thermal Recycling

Contin…..

Waste to Power Generation Method

Disadvantages

High Initial cost.

Recycled products may not last for long.

Unsafe and unhygienic recycling sites.

May create more pollution.

Not wide spread on large scale.

Alternatives to be considered

Plasma Pyrolysis Technology

Incineration of waste by plasma

torches leaving minute or

no residues.

Dehydrochlorination

Conversion of plastic waste into Liquid fuel using

units. By extracting hydrogen and chlorine separately

oil and hydrochloric acid can be obtained.

Conti…

Bio degradable plastics - Manufacture of plastics

that are eco-friendly. They have a decomposing

nature.

advantages

Plasma Pyrolysis

Clean destruction of hazardous waste Preventing waste

from entering landfills. No harmful emission of toxic waste.

De-hydro chlorination

Extraction of clean energy and Hydrochloric acid.

Bio Degradable plastic

Takes less time to breakdown ,these are renewable

Treatment & Separation Technique

1.Wet Separating Techniques

Flotation of mixed plastics utilizing selective wetting

characters in order to change the surface of specific

plastics from hydrophobic to hydrophilic

2.Dry separating Techniques

Especially PVC from mixture of plastics, Low capital

Input, means it is environmentally friendly

Environmental impact assessment

Plastic manufacturing consumes significant amount of

resources. (4% of worlds annual oil production)

Littered plastic spoils the beauty of the environment

Affects human health due to toxic release into

atmosphere.

Non bio degradable nature arrests recharge of ground

water aquifers.

Garbage mixed with plastic may cause problems in

landfill operations.

After Project proposal

Visit to Thudiyalur and Saravanampatti Recycling Centre

Aug - 22 to Yesterday

Their Sales

Recycled Plastics 1 kg is Rs.30

For Roads

Mrs.Rani

Machines and Products

Data of TNAU

Wastes – 1 to 1.5 ton / day

Departments – 45 +

Plastic Sale – Yearly twice , Rs.15 / Kg

Excess – Hostels, Canteens, Shops

Suggestion – Recycling Unit at TNAU

After mid - sem places to be visited

Sri Sai Chakra Polymers

Etc……

Thank You