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Database of Waste Management Technologies |
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Case Study 20 – Biodrying
| General Information | Photo Gallery | |
|---|---|---|
| Name: | MSW Pretreatment Unit-Heraklio |
MSW Pretreatment Unit (Biodrying) in Heraklio, Crete, Greece 
MSW Pretreatment Unit (Biodrying) in Heraklio, Crete, Greece |
| Owner: | United Association of. Waste Management of Crete (E.S.D.A.K.) | |
| Operator: | Mesogeios S.A. | |
| Technology: | MBT, Biodrying Biocubi - ECODECO | |
| Designed Capacity: | 75,000 tpa | |
| Cost: | 14 million € (budget) | |
| Location: | Heraklio, Crete, Greece | |
| Served Area: | Heraklio County | |
| Commercial Start Up: | 2010 | |
| Contact Details | ||
| Address: | ESDAK Arxiepiskopou Makariou 22 Heraklio,Crete, Greece |
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| Phone Number: | +30 2810 361610 | |
| Fax: | - | |
| Email: | - | |
| Website: | - | |
Short Description
The Biodrying Unit of Heraklion in Greece produces bio-dried odourless material through the following stages:
- Waste reception
- Waste shredding (to 0.2-0.3 m average size)
- Biodrying (14 days treatment) under controlled ventilation with material moving within the biodrying bay (through an automatic grabbing cranes)
- Extraction of biodried material towards refinement section where different material streams are separated to the aim of selecting recyclable materials (paper, plastics, ferrous metals, non –ferrous metals)
- Baling of the produced biodried material
The whole process takes place in a closed building that operates under vacuum. The biodrying process is realized through the suction of air from the waste mass and lasts 14 days. Through the process a 28% of waste mass reduction is achieved.
The unit is equipped with a biofilter to retain the odors of the process.
Finally, the output of the biodrying process is a bio stabilized final material, which is sent to the landfill, and a stream of recovered metals.
The biodried material may be easily transformed to SRF by adding a post-mechanical treatment stage.
Key Facts
| Treatment Capacity: | 75,000 tpa | |
|---|---|---|
| Input Material: | MSW | 75,000 tpa |
| Output Products: | Baled Biodried material | 50,775 tpa |
| Ferrous metals | 3,000 tpa | |
| Moisture Loss | 19,725 tpa | |
| Degradation of Volatile Organics | 1,500 tpa |
Extra Information
Schematic representation of the MSW Pretreatment Unit in Heraklio, Greece
| Characteristics of Biodrying Bay | |
|---|---|
| Dimensions(LxWxH m) | 90x20x6.65 (The whole building is 13 meters high) |
| Retention time (days) | 14 |
| Capacity | 11,000 |
| Total area occupied (m2) | 1,800 |
| The aeration takes place via perforated floor | |