Innovations in Waste Management
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Transcript of Innovations in Waste Management
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Innovations inWASTE MANAGEMENT
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INTRODUCTION
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What is waste management?
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Waste management in simple words means
collecting waste products, transporting it and processing it into a new product or decomposing it for
good
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LANDFILL INCINERATOR
conventional METHODS OF WASTE MANAGEMENT
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COMPOSTING
Mechanical TREATMENT And Recycling
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PYROLYSIS GASIFICATION
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Rapid development and industrialisation Increase in population
Increase in waste generation
Many landfill sites reaching capacity
THE NEED FOR innovativeWASTE MANAGEMENT
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New types of waste such as e-waste or WEEE becoming new threats
dumped by developed nations in developing nations; violation of humanrights
Price of land significantly increase
Increase in pollution due to harmful emissions and contaminated and littered water bodies
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NEW TECHNOLOGIES AND ALTERNATIVE SOLUTIONS
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LANDFILL BIOREACTOR
'Controlled land filling' process
controlled additions of liquid and leachate recirculation
accelerates the decomposi-tion process of waste
enhances the growth of the microbes responsible for waste decomposition
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Conventional landfills keep waste as dry as poss-ible; delays decomposition
covered with plastic membrane to prevent escape of land fill gas
Reliable energy generation
reduced pollution threat; reduction of greenhouse gas emissions
landfill life extension; reduced post-closure maintenance
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MICROWAVE PLASMA GASIFICATION
organic and other waste heated by microwaves- heavily ionises; forms plasma cloud
organic substances are combusted and transformed into a syngas;
gas provides enough energy to power microwaves
only 20% of the recovered energy
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metals, glass and minerals not gasifiable; melted into an inert slag residue
recyclable by-product; building material; very light; mouldable 60% more efficient; can produce diesel from waste; produce 70% diesel as a by-product
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Strains of bacteria capable of breaking down plastics into biodegradable polymers
Isolated from soil samples collected from recycling plants
Polyhydroxyalkanoates (PHAs) synthesized by bacteria in high carbon sources or nutrients e.g., nitrogen, phosphorous, sulphur, oxygen
PLASTIC DEGRADING BACTERIA
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Plastic carry bags, blood bags and plastic granules completely degraded
Similar properties to poly-Ethene and polypropylene
PHAs an environment friendly alternative to petrochemical-based plastic
Applications in packaging, coating materials, medical equip-ments
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No trash sent to landfills, incinerators, etc.
smarter designs for products; to become resources
New rules and policies- responsible approach to using and conserving natural resources change in attitudes, lifestyles and practices
ethical, economical, efficient and visionary; creates jobs
ZERO WASTE PHILOSOPHY
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conclusion.
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CREATED BYJULIE JACOB
Thank YOU!