Plastics Carry Bags: Benefits, Issues, Realities & Solutions

  • Uploaded by: saravanakumar
  • 0
  • 0
  • January 2021
  • PDF

This document was uploaded by user and they confirmed that they have the permission to share it. If you are author or own the copyright of this book, please report to us by using this DMCA report form. Report DMCA


Overview

Download & View Plastics Carry Bags: Benefits, Issues, Realities & Solutions as PDF for free.

More details

  • Words: 1,960
  • Pages: 52
Loading documents preview...
Plastics Carry Bags Benefits, Issues, Realities & Solutions

CONTENTS • CARRY BAGS - WHY PLASTICS ? • PLASTIC BAGS - COMMON MISCONCEPTIONS • ENVIRONMENTAL BURDEN FOR ALTERNATIVES TO PLASTIC CARRY BAGS • ISSUES • SOLUTIONS – WASTE MANAGEMENT & RECYCLING • RECOMMENDATION

WHY PLASTICS ? Replacing Traditional Materials …Due to Superior Properties

Material

Energy Requirement KWH Kg-1

• Safe & Hygienic – Inert and Chemical Resistance

•Light Weight & Non-Breakability •Excellent Barrier Properties - Enhancing Shelf-life •Superior Impact Resistance •Transparency as well as Opacity •Lower Fuel Consumption and Product Loss during Transportation

All These… at Lesser Cost

Aluminum

74.1

Steel

13.9

Glass

7.9

Paper

7.1

Plastic

3.1

Scott, G and Gilead, D., editors, Degradable Polymers, Principles and Application, Chapman & Hall, London, 1995

PLASTICS • Global Consumption of plastics ~ 180 million tonnes (Per Capita ~ 28kg) • Indian Consumption of plastics ~6.5 million tonnes ( Per Capita ~ 6kg) • Plastic carry bag accounts for less than 1% of total plastic consumption.

ENVIRONMENTAL BENEFITS

PLASTICS : TOP GREENHOUSE GAS EMISSION SAVER In 2005, Total Global Emissions was 46 GtCO2e It could have been 51.2 Gt CO2e, but for the savings by Chemical Industry Savings by Chemical Industry 11% Among The Top 10 Green House Gas Emission Saving Sectors - 4 are Plastics

Insulation Materials

Packaging

Automobiles

Piping

Plastics save green house gas emissions And save the earth from Global Warming Source: McKinsey cLCA study for International Council of Chemical Association

GHG EMISSION SAVING BY PLASTICS PACKAGING

Total Saving ˜ 220 Mt CO2e Plastics Carry Bags reduce GHG emission

Source: McKinsey cLCA study for International Council of Chemical Association

ALTERNATIVES TO PLASTICS CARRY BAGS?

• Jute • Textile • Paper • Degradable Plastics COMPARATIVE ANALYSIS OF THE VARIOUS OPTIONS



ENERGY SAVING: 1 LAC MT. OF ATTA PACKAGING Jute Vs Plastic Energy consumption in GJ for Manufacturing Raw Materials, Packaging and Transportation of Atta Energy saving – 81% Energy recovery with plastics waste-35 GJ Source: LCA Study by IIT (Delhi)

The comparison holds good for Plastics Vs Jute Carry Bags

ENVIRONMENTAL BURDEN… Jute Bag Vs Plastic Bag During production of raw Material & bags

During transportation of the finished bags

* High potential for Global Warming

**Values are for Packaging of One Lac MT of Atta Source – Report by Centre for Polymer Science and Engineering, IIT - Delhi

AIR & WATER POLLUTION Polyethylene Vs Paper

150 Environmental Burdenon CommonScale

107.8

100

Polyethylene

67

50

43.1 29

28.1 9.9

0

10.8 6.8

1.53.8

1

6.4

Paper

6.8 0.5

0.5

0.2

GJ SO2 Nox CH4 CO Dust COD BOD

Energy for ↑ Manufacture

Emissions →

Figures for 50, 000 carry bags Source:

Scott, G and Gilead, D., Editors, Degradable Polymers, Principles and Application, Chapman & Hall, London, 1995

PLASTIC & TEXTILE BAGS  Plastics manufacturing consumes 400 kwh/mt while composite textile mills consume 1310 kwh/mt  Textile contributes 30% SOx (second highest by any sector) and 23% NOx (highest by any sector) Source : Warmer Bulletin, July 01

This gives a comparative analysis of environmental burden generated by paper, jute & textile bags which are not visible to naked eyes though, in comparison to plastic bags!

PLASTICS BAGS / CARRY BAGS •

Increase shelf-life of contents



Essential for packaging / carrying of confectionery, bakery products



Essential for packaging / carrying hygroscopic products like sugar / salt / jaggary



Convenient for carrying fish / meat / poultry and other wet food products – no other appropriate alternatives



Essential to carry commodities during rainy season



Add convenience to day-to-day life

PLASTIC & PAPER CARRY BAGS

Plastic carry bags generate 60 % less GHG than uncomposted paper bags & 79% than composted paper bags

Source: ULS LCA Report, USA and other reports

PLASTIC & PAPER CARRY BAGS

Plastic grocery bags consume 40% less energy during production and generate 80% less solid waste after use. Source: ULS LCA Report, USA and other reports

PLASTIC & PAPER CARRY BAGS

Plastic grocery bags consume 40% less energy during production and generate 80% less solid waste after use than paper bags. Source: ULS LCA Report, USA and other reports

PLASTIC & PAPER CARRY BAGS

Source: ULS LCA Report, USA and other reports

PLASTIC & PAPER CARRY BAGS

Paper bags generate 70% more air pollutants and ~ 50 times more water pollutants than plastic bags do.

Source: ULS LCA Report, USA and other reports

PLASTIC & PAPER CARRY BAGS

Plastics and Paper both can be recycled. However it takes 91% less energy to recycle a kg of plastic than a kg of paper. Source: ULS LCA Report, USA and other reports

PLASTIC & PAPER CARRY BAGS



150,000 plastic bags of 20 cm x 30 cm x 40 micron needs 1 small tempo for transportation



Paper bags of same size & number need ~ 10 such tempos for transportation - due to higher weight and volume Consuming more fuel and

causing more air pollution

DESPITE ALL THESE POSITIVE ATTRIBUTES …

PLASTIC BAGS ARE UNDER SCANNER

MAJOR ISSUES

 Health & safety  Toxicity  Biodegradability  Disposal & waste management

HEALTH & SAFETY Polythene is approved safe material for Use … • In contact with food, pharmaceuticals and drinking water • As implants within human body • In medical applications like IV bottle, Packaging of tablets • For Packaging of Liquid Milk

Plastic Carry Bags are generally made from Polyethylene

TOXICITY Issue: Plastics are termed as toxic and injurious to health

Fact: •

Plastics are inert materials and do not pose any danger of toxicity



Emissions during processing of plastics are well within regulatory norms (study by SIIR – Delhi)



Additives used in plastics are approved as per BIS / FDA standards



Emissions at fire situation have similar or lesser implications in comparison to situation involving natural organic materials like wood, paper & cotton



Emissions during burning of paper and polyethylene are similar

BIODEGRADABILITY Issue: Non-biodegradability property of plastics carry bags is termed as the major reason of waste management problem •

Plastics are useful for its long life characteristics

• Nothing decomposes substantially in modern

landfills. It

requires additional mechanical action for composting waste • Indian Landfills does not practice Composting Activity

degradable

BIODEGRADABLE OR RECYCLABLE PLASTICS ? •

Compostable plastics will degrade/compost only in composting conditions



The concept of Biodegradable Plastics will encourage littering



Spurious products cannot be detected in market place causing flooding of fake bags



A mixture of degradable and non-degradable plastics will disturb the plastics recycling activity



During decomposition stage biodegradable plastics emit CO2 and CH4 – both green house gases

BIODEGRADATION OR RECYCLING ? • Biodegradable Plastics have been developed • However these are required in applications where recycling is not possible or difficult • Developed countries – major manufacturers of BD Plastics – have not mandated use of Biodegradable Plastics Carry Bags in their countries

Reuse and Recycling is preferred over degradation to encourage Resource Management

USE OF BIODEGRADABLE PLASTICS

Recommended applications of BD plastics: • Nursery Bags, • Mulch/Agricultural film, • One – time use Cutlery / Cups etc

to be

Carried

Ships / Remote areas • Lamination on jute – paper for Relevant Applications etc

Packaging

in

DISPOSAL Issue: Plastics are blamed as the major cause of MSW problem Facts: •

According to studies plastics form about 5% of total MSW in major Indian Metros

• A recent study at Deonar dumping area (Mumbai) reveals that ~ 90 % of plastics waste brought to the landfill are picked up by rag pickers and sold to waste trades for recycling

PLASTICS IN MSW

NEERI study - 2005

ISSUE – INDIAN CONTEXT

WHILE

ALL

SOLID

/

THICK

PLASTICS

WASTE

IS

SYSTEMATICALLY PICKED UP BY THE WASTE COLLECTORS FOR RECYCLING, DISPOSAL OF THIN PLASTIC CARRY BAGS, SINGLE-USE PLASTIC WASTE AND MULTI-LAYER PACKETS, ABANDONED BY THE WASTE PICKERS, HAVE CREATED SOLID WASTE MANAGEMENT PROBLEM

PLASTIC CARRY BAGS : GLOBAL MATRIX



No developed country in the world has any thickness restriction of Plastic Carry bags



No country in the world has mandated use of Biodegradable Plastics for any mass commodity product like Carry Bags



In California - USA, initial measures for banning of normal plastic bags in favour of biodegradable plastics / paper bags has been stricken down by the Superior Court asking for conducting LCA study on the products



France dropped its earlier proposal for banning of normal plastic bags in favour of Biodegradable Plastic Bags on the direction from EU Parliament

PLASTIC CARRY BAGS : GLOBAL MATRIX



Australia has plans to reduce the use of thin HDPE bags by 50% over a period of three years



Some developed countries levy tax on all packaging materials including plastic carry bags – to meet the cost of managing the waste



Many developing countries including China & India have thickness and size restrictions



Only Bangladesh and some African nations have imposed ban on plastic carry bags

PLASTIC CARRY BAGS : INDIAN RULES • IN THE STATES OF MAHARASHTRA, GOA, WEST BENGAL, MEGHALAYA, PUNJUB, HIMACHAL PRADESH, KERALA THE THICKNESS RULE VARIES FROM 30 TO 70 MICRONS • IN DELHI , CHANDIGARH AND J & K, PLASTICS CARRY BAGS ARE BANNED

• ALL OTHER STATES FOLLOW MoEF RULE OF 20 MICRONS

SOLUTION TO DISPOSAL PROBLEM



Segregation at source – awareness among citizens against littering



Proper system for collection of segregated wastes for facilitating recycling



Incentives / encouragement for recycling



Upgradation of the existing mechanical recycling technology



Encouragement for alternate methods of recycling / recovery of energy

WASTE MANAGEMENT: CASE STUDY

SEGREGATION OF WASTE AT SOURCE ‘A’ – WARD MUMBAI

Rag pickers with van

Loading of dry waste in Municipality van

Dry waste being carried for loading into Municipality van

Dry waste at housing colonies

Municipality van with dry waste on way to segregation area

SEGREGATION OF WASTE AT SOURCE ‘A’ – WARD MUMBAI

Segregation of dry waste

Packing of segregated dry waste

Storing of segregation dry waste in secured place

Segregation of dry waste being weighed and sold to recyclers / traders

DRY WASTE SEGREGATION DATA MUMBAI WARDS – A, D, F(N), M (E & W), S & T A comparative assessment of the segregation activities in select Mumbai Wards

BMC provides dry waste collection vans and secured segregation area free of cost

There is wealth in Waste

CONVENTIONAL RECYCLING

CONVENTIONAL RECYCLING

CONVENTIONAL RECYCLING

NON-CONVENTIONAL RECYCLING AND RECOVERY

– Co-processing in Cement Kilns / Energy Recovery – Conversion to Fuel – Construction of Asphalt Road – Conversion to Basic Chemical

FUEL FROM WASTE PLASTICS Invention by Indian Scientist Dr. Alka Zadgaonkar Raisoni College of Engineering, Nagpur

SCIENTIFIC SOLUTION TO PLASTICS WASTE DISPOSAL WITH RECOVERY OF ENERGY

ACC Plant at Kymore - MP

CALORIFIC VALUES (MJ / KG)

: Plastics ~ 45 : Coal ~ 29

All types of plastics waste – laminated, mixed & uncleaned, can be co-processed in Cement Kiln in partial replacement of coal

CPCB HAS APPROVED THE PROCESS

PLASTICS WASTE IN ROAD CONSTRUCTION

ASPHALT PLANT OF BMC, WORLI, MUMBAI

Prof. V S AGHASE ROAD DADAR, MUMBAI

PLASTICS WASTE IN ROAD CONSTRUCTION

Vidyasagar Street – Kalyani, West Bengal

PLASTICS WASTE IN ROAD CONSTRUCTION

Bawana, Delhi

RECOMMENDATIONS  IMPLEMENTATION OF COMPREHENSIVE PACKAGING WASTE RULE SIMILAR TO THOSE PREVAILING IN DEVELOPED COUNTRIES  PROPER IMPLEMENTATION OF MUNICIPAL SOLID WASTE (MANAGEMENT & HANDLING) RULE, 2000 OF MoEF, GOVT OF INDIA  UNIFORM PLASTIC CARRY BAG THICKNESS RULE IN THE ENTIRE COUNTRY AND PROPER IMPLEMENTATION OF THE SAME

RECOMMENDATIONS  ENCOURAGEMENT AND INCENTIVES FOR RECYCLING ACTIVITY AS PER RECOMMENDATION IN THE SUPREME COURT COMMITTEE REPORT ON SWM IN CLASS I CITIES OF INDIA – 1999

 MANDATING CO-PROCESSING OF PLASTICS WASTE IN ALL CEMENT KILNS IN THE COUNTRY

AWARENESS MESSAGE TO ALL CITIZENS

Related Documents


More Documents from "sammut_nathalie221"