The waste storage is carried out in conditions of maximum safety for the environment.
The recyclable waste collected separately from Bistrita-Nasaud County is sorted within a sorting plant with a capacity of 13,000 tons / year built within the Integrated Waste Management Center in Tărpiu. In the sorting station are sorted only waste paper and cardboard, plastic waste and scrap metal. The glass waste collected separately and arrived at the transfer stations is transported to CMID Tărpiu.
The technological process in the sorting station follows the sequence:
- acceptance of materials;
- delivery of materials (waste)
- transport of the material to the reception area;
- manual sorting on various materials;
- baling and valorization
Green waste composting
The composting plant within CMID Tarpiu has a capacity of 12,000 tons / year and consists of two platforms, in the total area of about. 15.000 sqm
Platform 1 has an area of about. 7.300 sqm
Platform 2 has an area of about. 7,700 sqm
The technology is what composting in membrane-coated furrows with mechanical aeration. The station is provided with a concrete platform, guard channels for taking over clean water and dirty water in a separate system, pumping manile of dirty water in the area of formation of furrows for intense decomposition. The dirty surplus waters are directed to the leachate treatment plant.
Ecological landfill construction
In addition to the first two cells existing within the Ecological Landfill in Boldesti Scaeni, since 2007 Vitalia Servicii pentru Mediu Waste treatment has built another 4 storage cells for household and assimilable waste.
The soil and the groundwater was protected by applying a multilayer insulation over the entire surface of the cell and installing a sewerage system that collects rainwater in a waterproof basin to be treated.
The insulation system consists of:
• natural mineral insulation,
• clay bentonite duvet,
• Bentofix HDPE geomembrane geotextile gravel 16/32
The closed cells will be covered with 2 m of topsoil and will be grassed to integrate the land into the natural landscape.
As a result of the natural processes of anaerobic decomposition of organic matter from the waste from the body of the deposit, biogas production takes place, which is captured through wells from various depths, the gas extraction being achieved by absorption. The capture wells are connected by biogas adjustment stations to the main collection pipe from which the gas after filtration and the separation of the condesns is neutralized by combustion and subsequently transformed into electricity. Thus, biogas is transformed by cogeneration into electricity and thermal energy.