Upload
vignesh-sekaran
View
74
Download
1
Embed Size (px)
Citation preview
Plastic waste
management and
recycling technology
PLASTIC WASTE MANAGEMENT AND
RECYCLING TECHNOLOGY
INTRODUCTION
OBJECTIVES INVOLVED
CASE STUDY
EXISTING PROBLEMS
REMEDIAL MEASURES
CONCLUSION
REFERENCE
INTRODUCTION
Waste is now a global problem, and one that must be
addressed in order to solve the world's resource and
energy challenges.
Plastic is a material in any of a
wide range of synthetic or semi synthetic that are
moldable. These are made from limited sources of a
petroleum. Huge advances are being made in the
development of technologies to recycle plastic waste
among other resources.
It gives to energy savings and the reduction of
greenhouse gas emissions. It also saves non renewable
sources like oil and gas. In addition to that, recycling
provides livelihood for millions of people and families
in developing countries, employment or informal
economic activities.
Why recycle plastics ?
OBJECTIVES
The main objective of this project is to emphasize the
reduced use of plastic and the beneficial management of
plastic waste. This also includes alternative measures for
the substitution of the synthetic polymers.
Efficient transformation of plastic into energy and fuel.
Controlling the impact of plastic waste on the
environment.
Making our environment an eco friendly zone.
CASE STUDY
Plastic is a form of synthetic or semi synthetic organic
polymer. Plastic can be manufactured through various
processes and by combination of various compounds. The
variety of plastics are discussed as follows.
PET HDPE PVC LDPE PP PS OTHERS
DESCRIPTION
PET : Poly Ethylene Terephthalate-fizzy drink bottles and
oven trays manufacturing
HDPE : High Density Poly Ethylene-bottles for milk and
washing up liquids
PVC : Polyvinyl chloride, Pipes and fittings
LDPE : Carrier bags and garbage bin liners
PP : Poly propylene, Medicine bottles
PS : Poly Styrene, Packaging pellets, Fast food trays etc.
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%
0.166
Usage
chips and conf bags bottles/caps and lids PET bottlessupermarket retail bags straws garbage bagspackaging food bags cling wrapfruit juice bottles softdrinks/water cups/utensilsfood containers milk bottles pack ringscigarette lighters
PLASTIC WASTE SOURCES
Source
Municipalsource
Residentialmarkets
Hotels,
hospitals
Distribution& industry
sector
Food,
chemicalPackaging
firms
Othersources
Automotive, agriculturalwaste etc..
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.
Processing
Segregation
Selection
METHODOLOGY
Methodology
Selection - The recyclers have to select the waste
suitable for recycling.
Segregation - The plastic waste must be separated
according to its nature corresponding to BIS guidelines
Processing - After segregation pre consumer waste
can be directly recycled whereas post consumer
waste has to be washed ,shredded ,agglomerated and
granulated.
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.
Recycling technology
Three forms of recycling
Category Method of recycling Recycling
Category
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
Plastic waste disposal through Plasma Pyrolysis
Technology - incineration of waste by plasma torches
leaving minute or no residues.
Conversion of plastic waste into Liquid fuel using
Dehydrochlorination units. By extracting hydrogen and
chlorine separately oil and hydrochloric acid can be
obtained.
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 break down
Bio plastics are renewable.
REVIEW OF LITERATURES
Javeriya Siddiqui and Govind Pandey - M.M.M. Engineering College,
Gorakhpur Conversion of Plastics Waste into Liquid Fuel
Dr. R.K. Khandal, SRI, Chairman their groups – PWM in India
National Recovery Technologies, Nashville, TN - High-Speed Plastic
Recycling
SUCCESS STORIES BEHIND THAT PWM
Woman of the waste recycling
project, Galle, Sri Lanka. Ragbags
A LENOVO ENVIRONMENTAL SUCCESS STORY
“USING RECYCLED CONTENT PLASTICS”
To demonstrate “engineered” recycled content plastics could
successfully be used in computer applications and satisfy the
demanding requirements, Lenovo’s team first worked with post
industrial content (PIC) recycled plastics.
To prove to the computer industry using recycled plastics is not
only the right environmental thing to do, but makes good
business sense.
REFERENCE
Solid waste management by V.K.Prabhakar
Plastic Waste Management - Dr.A.B.Harapanahalli, Mini.of
Envi & Forests.
Solid waste management - Coimbatore city municipal
corporation
Article published by Plastic Waste Management Institute
Information handbook under right to information act -TNPCB
The Hindu – ‘Envi minister wants plastic free
Coimbatore’. Feb 12 2010, ‘Plastic bags with a ‘ban’g’-
Jan 18 2012.
CONCLUSION
Even though plastic recycling and its
management has gained momentum nowadays,
the best possible way of protecting our
environment is to alter the root cause of the
problem by reducing the usage at the
preliminary level.
Place to be visited
CIPET,
CHENNAI
Thank you