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1. Waste management

Definition of waste

Historical development

Types of waste

Waste utilities

Problems arising from waste
By Alejandro Hueso

2. Definition of waste
Waste is unwanted or useless materials produced from human's
activities.
We can convert most of them and take advantage using rubbish to
make products like plastics,cardboard,
glass,cans,...
If we don't dispose of them, We
will have problems because they bring
diseases,bad smells,animals
looking for food.

3. Historical develpoment.
Since Industrial Revolution,humans produce a growing number
of trash because factories and life stile changed.
This is a problematic thing because we must control them using
technology and contributing with money.
The new Life style makes that we use a lot of plastics containers
because we buy packed items.

4. Types of waste: Primary origin
Primary origin: Produced by agriculture and farming.
Organic fertilizer (excrement)
Rest of pesticide
Rest of plants

5. Types of waste:Secondary origin
Second origin: Produced by industry.
Inert rubbish like rocks,sand.
Toxic rubbish like chemical compouds.
Radioactivity compounds produced by energy production.

6. Types of waste: Third origin.
Third origin: Produced by sanitation and human's activities
at home.
Biological rests: By hospital cures
Municipal solid waste like plastic bags,organic rubbish,glass
or cardboard.
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7. Waste utilities
3R rule, we should use this rule to cut down the level of
rubbish and fight against the environmental impact:
 Reduce: Try to use only the necessary containers.
 Reuse: For example we can use plastic bags like trash bags.
 Recycle:Transform waste in productive items.

8. Utilities of primary origin wastes
We can burn them for produce warmth and energy but
generate CO² wich cause global warming.
Also ,with organic waste, we can make compost to
fertilizer plants.

9. Utilities of secondary origin wastes
Usually we cannot take advantage of this rubbish but we must
manage them because often they are dangerous.
With radioactivity and toxic compounds, normally, we pack in
containers and store them. We wait because they will lose their
activity with time.

10. Utilities of third origin wastes:
With biological rests automatically we burn them because they
are a disease and infection node. By this way we avoid to
problems.
Regarding municipal solid waste we separate in the differents
kinds of junk and later we can choose differents ways to recycle
them:
Burn them for produce energy
We can bury them for fertilize the ground in landfills.

11. Problems arising from waste
 The not management of waste cause:
 Diseases like difteria,colera,salmonella,...
 ”Rubbish ilands” wich float in oceans.
 Problems between humans and animals who are looking
for food.
 Not to follow 3R rule causes overproduction of waste
and increase recycling cost.