Small actions matter.
Give biowaste a chance to be useful
About 25% of the mixed waste collected from households is biowaste. Biowaste placed in mixed waste is incinerated at the waste-to-energy plant, causing important nutrients and humus to be lost from circulation. The calorific value of moist biowaste is also much lower than that of dry waste. When biowaste is separated from mixed waste in sorting, the biowaste can be recovered. You can influence the amount of biowaste at home through wise choices, by buying and preparing only as much food as is needed.
There are differences in the treatment of biowaste in our operating area. In the case of almost all the municipalities in Kiertokapula’s operating area (excl. Nurmijärvi), separately collected biowaste is processed into bioethanol at St1 Renewable Energy Oy’s bioethanol plant in Hämeenlinna for use as a raw material for automotive fuel. District heating and electricity are generated as by-products. The remaining pulp is used to produce biogas and fertiliser. Separately collected biowaste from Nurmijärvi is processed at the Kekkilä composting plant. Composting is carried out in a controlled manner in a tunnel indoors, and the exhaust gases generated in the process are handled appropriately. You can also compost biowaste on your own property. Read more about composting here.
Sorting biowaste is easy
- Separate biowaste from mixed waste when sorting at home.
- Pack the biowaste and take it to the housing company’s biowaste container. Biowaste must be separately collected from properties with at least five apartments.
- Nurmijärvi: Biowaste is packed in a paper or biodegradable bag (not a plastic bag). Other municipalities: Biowaste is packed in a paper or plastic bag (not a biodegradable bag).
- If you live in a detached house, you can compost biowaste using your own thermally insulated composter that has been protected from pests.
- If the property does not have composting or separate collection of biowaste, biowaste is placed in mixed waste.
Other municipalities, excl. Nurmijärvi
Biowaste can be packed in a bag you have made yourself using, for example, a newspaper. Plastic, paper and carton bags are also suitable for packing, regardless of their original purpose. However, biowaste should not be packed in a biodegradable bag.
Biowaste can be packed in a bag you have made yourself using, for example, a newspaper. All paper bags are also suitable for packing, regardless of their original purpose. Biodegradable bags can also be used in the Nurmijärvi area.
Sort into biowaste
- fruit and vegetable peels
- waste from meat and fish
- coffee grounds, filter papers and tea bags
- leftover food, small bones
- spoiled food
- kitchen towel and other soft paper
Only biowaste from the kitchen may be placed in the biowaste container. Drain liquids from leftovers before placing them in the biowaste container. You can also put soft paper or an egg carton at the bottom of the bag to bind moisture. Kitchen towel can be used to soak up small amounts of cooking oil and then placed in biowaste. Larger amounts of oil should be packed in a closed plastic bottle and sorted into mixed or dry waste. You can avoid bad odours by taking care of the cleanliness of the container.
Save money through biowaste sorting
When biowaste is sorted out of mixed waste, the emptying interval of the waste container can be extended. With the sorting of biowaste, the mixed waste container becomes a so-called dry waste container, in which case its longest possible emptying interval without a separate application is up to eight week throughout the year. If you live along the route of a biowaste collection vehicle, you have the option of setting up joint biowaste collection with, for example, a few of your neighbours. Read more about setting up joint collection here. A jointly owned container saves money on waste management costs, as shown in the example below.
Example: Biowaste container shared by five properties in Valkeakoski
If biowaste is not sorted
Each property has its own mixed waste container (240 l) that is emptied every two or four weeks. The emptying price per time emptied is EUR 6.29. With a two-week emptying interval, the container is emptied about 26 times a year, resulting in an annual cost of EUR 163.54/household. With a four-week emptying interval, the container is emptied about 13 times a year, resulting in an annual cost of EUR 81.77/household
When biowaste is sorted
The five properties share a biowaste container (240 l) that is emptied every two weeks. The emptying price per time emptied is EUR 5.30 and the container is emptied about 26 times a year. Thus, the annual cost per property of the biowaste container shared by five households is EUR 27.56/household. Each property also has its own dry waste container (240 l), the emptying interval of which can be extended to eight weeks with the sorting of biowaste. The waste container is emptied about seven times a year, so the annual cost with this emptying interval is EUR 44.03/household. The total annual cost with a jointly owned biowaste container and a property-specific dry waste container is EUR 71.59/household.
In accordance with this example, the sorting of biowaste using a jointly owned container results in savings of either EUR 10.18 or 91.95/household/year depending on the previous emptying interval of the waste container. You can check the waste container emptying prices in your municipality on the municipality’s own page. In addition to saving money, sorting biowaste is also good for the environment.