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Last Updated: Wednesday October 15 2008 04:46 GMT

We have a wormery at our school

Press Packer Yasmin

Press Packer Yasmin's school recycles its food waste, with the help of worms, to make compost for its garden.

Here Yasmin explains what happens.

"Composting food waste is very important because it saves 200kg a week from going to landfill.

Our school is currently processing 30 kilos of food waste a day. If you are thinking 'how do we do it', we shall tell you.

Kill bacteria

We work with the kitchen staff and our school gardener, Tom, to recycle food waste from the kitchen, which is mixed with garden waste from the school grounds and wood chippings.

The natural heat produced from this mixture (thermophylic decomposition) is high enough to kill the harmful bacteria and produces usable compost within a few weeks.

Helpful worms

I think landfills are bad places to dump rubbish because once the landfill is full and has a layer of soil on top; no-one can live there.

The wormery
The wormery
These areas usually become parks or golf courses. Sometimes the rubbish can make dangerous gasses or chemicals under the ground that leak into the soil.

Another student, Ben, and I compost the school waste nearly every day.

Inside the containers of wood chippings and food waste are worms.

The worms are there to help the natural waste decompose (rot).

Important job

The school uses the waste on the gardens once it has decomposed and becomes compost. It helps the plants grow.

I think our wormery is so important because it helps us do a little bit to, reduce, recycle and reuse our waste."

Yasmin, 13, Worcestershire

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