Starter

• Name all the different types of domestic waste you can think of…– HINT. Think about possible materials

• Quick quiz – how long do you think it takes these objects to break down in landfill?Disposable nappy Plastic bottle

Cotton T-shirt Paper bag

Leather belt Banana peel

Styrofoam cup Aluminium can

Glass bottle Block of wood

500-600 years 1 million years

50 years

1 million years

1 million years

6 months 2 months

1 month

500 years

20 years

Solid Domestic Waste (SDW)…also called Municipal Solid Waste (MSW)

Learning outcomes:• You should all be able to:– Identify types of solid domestic waste

• Most of you should be able to:– Outline the types of solid domestic waste

produced by yourselves and your community– Outline how waste production changes across the

country and has changed over time

Solid Domestic Waste (SDW)

• Waste is material that has no value to its producer.

• SDW makes up about 5% of total waste and is collected from homes and shops.– Question: Where do you think the other 95%

comes from?

Monitor your waste for a week and keep a waste diary…Complete this table after a week and hand in…

Activity Is waste produced? Type of waste produced What happens to the waste?

At Home

In the community

At school

http://www.meinfo.co.uk/articles/packaging-and-environment/ - Waste Online’s estimate of the UK’s waste generation

The UK generates 434 million tonnes of waste annually of which 30 million tonnes is household waste…

Mexico

According to: “the Journal of Solid Waste Technology and Management”… (2006)

Per capita waste generation in Mexico varies between 0.680 kg per day to 1.33 kg (lowest values in the rural areas and the highest in Mexico City and other Metropolitan areas).

Mexico City and the Northern border are the areas with the highest per capita generation of MSW in Mexico.

The US produces – nearly 3 kg per capita of waste per dayEurope produces – 1.37 kg per capita per day

Mexico

“the Journal of Solid Waste Technology and Management”… (2006)

DISCUSS – How do you think the composition of Mexico’s MSW changes across the country? – How do you think it may have been changing over time?

HINT: Think about the difference between Chiapas and urban zones. Think about the consumption habits and purchasing power of the population.

Checking outcomes

1. Summarise the different ideas you have learned today – include specific information about each one.

2. Write down some questions to ask your fellow students about the aspects that we have learned today.

3. Think about the learning outcomes when writing your questions:Learning outcomes:• You should all be able to:

– Identify types of solid domestic waste

• Most of you should be able to:– Outline the types of solid domestic waste produced by yourselves and

your community– Outline how waste production changes across the country and has

changed over time