Disposal and Recycle

7 rs

remove reduce resource reuse recycle recover return

Remove

Eliminate demand together

Reduce

Use less resource to meet need

Resource

Change materials or sources

Reuse

Reintroduce into same flow

Recycle

Use in different flow

Recover

Capture some value

Return

Return in an environmentally benign way

Circular economy

Theoretical and practical solutions to the problem created by the linear model

Addresses flow objectives by aiming to localize resource loops thus reducing the need for trans boundary movement of low value waste

Mitigate toxic colonialism and promote local sustainability

Three key principle of CE

eliminate waste and pollution

Circulate products and materials

Regenerate nature

Eliminate waste and pollution

Designing products and systems to ensure that waste simply does not waist in first place

Circulate products and materials

Keeping resource in use either technical cycles or biological cycles

Regenerate nature

Improve environmental conditions particularly through biological cycle eg return nutrients to soil

Advantage of landfill

Cheap

Centralized trash

No need separate types of waste

Disadvantage of landfill

Takes up space

Health hazard

Ugly

Smelly

Contaminated water

Harmful gas such as methane

Problems of waste management in LIC

Population growth

Urbanization mega cities governance

Problems of waste management in LIC Population growth

Higher amounts of waste more concentrated in small areas

Problems of waste management in LIC Urbanization

Internal migration to cities less available Land to process waste sir get use places close to nature

Transition to unsustainable materials so more urban waste

Mega cutiesProblems of waste management in LIC

No adequate infrastructure to deal with the waste

Governance Problems of waste management in LIC

Less stable and more corrupt

Priorities development rather than sustainable development

major steps leading to overconsumption

Industrial revolution

Population growth

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Globalisation

7rs are a part of

circular economy

limitations circular economy

ignores population growth

high initial cost