Pilot implementation of our compost unit in Florina
In the current project a compost unit has been installed in Western Macedonia, in the regional unit of Florina in order to satisfy the needs of the local stakeholders as they have been recorded through the questionnaire (https://symbiosisproject.eu/the-questionnaire-for-the-enterprises/) in the symbiosis platform (https://platform.symbiosisproject.eu/). Below there is a description of how it works and which are the categories of biowaste.
The biowaste are composted in 30-40 days, starting with shredding. After that, biowaste are driven to the first chamber, this of pre-processing/first maturation where for fifteen days and at predetermined intervals, it is stirred by a mechanical mixer (with wings) that the compost unit has, in order to provide it with the required oxygen. At the same time, on weekly basis, solid new composting materials to the compost unit are added. In the above first step, the compost unit transfers the new incoming waste to the first chamber. In the second step, which begins on 16th day, the biowaste of the first chamber is promoted to the second chamber where, for another 15 to 20 days at determined times, it is stirred by a mechanical mixer (with wings). The mature compost is then collected from the export valve.
The biowaste collected and used in the composting process belong to the basic categories of food, green and dry materials.
- Fresh and boiled fruits and vegetables, coffee grounds, cooked fruit and fish skins but not fats and oils are used in the food category
- Fresh herbs, flowers and leaves of the plant are used in the category of green materials
- In the category of dry materials are used dried leaves and greens, coffee filters and ash
Figure 1 The compost unit in Florina