Photo: Anna Åberg

Food waste

One of the most important things you can do for the environment is to take care of the food you already have. But what about the food waste that is unavoidable? Turn it into biogas and biofertilizers.

35 percent of what goes into the garbage can is food waste. If the potato peels and the leftover foods go into a separate food waste container it can be transformed into biogas and biofertilizers and contribute better to the ecocycle.

Today we sort out 25 percent of our food waste in Stockholm. There are reasons why the number isn´t higher – one of them is the infrastructure of Stockholm. Many buildings are poorly equipped for recycling, and the majority of the houses in central Stockholm have their garbage collected in bags.

Soon everyone will be sorting out their food waste

Starting January 1 2023, all households in Stockholm must dispose of their food waste separately. 

To enable more households living in apartments to sort out their food waste, Stockholm Vatten och Avfall is building a sorting plant in Högdalen. The plant is estimated to be running the winter of 2022/2023.

This is how your food waste becomes biofuel and biofertilizers

When food waste is sorted out it can be biologically treated and transformed into biogas and biofertilizers.

Biogas is used as fuel for buses, trucks and cars. Biogas is a renewable fuel that reduces the  emission of greenhouse gases.

Biofertilizers are used as plant nutrients in arable lands and woodlands. By using biofertilizers, nutrients and humus is restored to the biocycle. By exchanging synthetic fertilizers with biofertilizers, the need for mining of phosphorous, a limited resource, lessens. The very energy consuming production of nitrogen is also avoided, since it is a natural part of biofertilizers.

By recycling your food waste you contribute to the regional biocycle.

What the experts say