🌱 Constructed Wetland Wastewater Treatment Plant for Ecocentre Holíč

📍TRNAVA REGION - 

For the Ecocentre in Holíč, we implemented a complete multi-stage wastewater treatment system combining the natural processes of a constructed wetland with modern ECOPULZ, EKOVER, and ECOAIR technologies.

💧 How does the system work?

Wastewater is first fed into a multi-chamber sedimentation tank where suspended solids are trapped and primary pre-treatment takes place. Pre-treated water then flows by gravity into the first dosing chamber equipped with an ECOPULZ pulse doser. It ensures regular and even dosing of water onto the EKOVER vertical reed bed filter with an area of 16 m². The first filter handles the heaviest load and provides intensive pre-treatment. Water is distributed through perforated piping laid beneath the surface of the filter and subsequently flows through individual aggregate layers. From the vertical filter, water continues into the second dosing chamber, also equipped with the ECOPULZ system, from where it is evenly fed into the main ECOAIR horizontal reed bed filter with an area of 80 m². Water gradually flows through the entire body of the filter, where purification is provided by microorganisms forming a natural biofilm on the surface of the filter aggregate. The main filter is complemented by the modern ECOAIR aeration system, which actively introduces air into the root zone at preset time intervals. Better oxygenation creates more favorable conditions for bacteria and increases the removal efficiency of pollutants. The system also includes a recirculation chamber with a submersible pump, allowing part of the water to be returned for re-treatment. At the end of the process, treated water flows into a series of three polishing and evaporation ponds, where it naturally returns to the surrounding environment through evaporation and transpiration of the planted vegetation.

📊 Here is basic information about the construction in numbers:
💧 Annual wastewater production: 264 m³

💦 Sedimentation tank: 1 pc 

♻️ ECOPULZ pulse dosers: 2 pcs

🌿EKOVER vertical filter: 16 m²

🌱 ECOAIR horizontal filter: 80 m²

💦 Polishing ponds: 3 × 12 m²

🌱 Planted vegetation: 2,150 pcs

🧱 Aggregates used: more than 200 tons

🛡️ Fatrafol 818 welded waterproofing membrane: 310 m²

🟦Protective and underlay geotextile: 700 m²

🔨 Sewer piping: 200 meters

👷 Installation team: 5 workers

⏱️ Working hours: 200 hours

🚜Machinery used: 3 machines

The waterproofing construction of the reed bed filters was carried out by our certified personnel using welded Fatrafol 818 membrane. The membrane is protected on both sides with geotextile and ensures complete separation of the system from the surrounding subsoil. Each filter is also equipped with a separate chamber that allows system inspection and sampling of treated water.
 

Main features:
✅ multi-stage wastewater treatment
✅ combination of vertical and horizontal filters
✅ two ECOPULZ pulse dosers
✅ ECOAIR active aeration
✅ water recirculation option
✅ natural post-treatment in ponds
✅ more than 2,000 planted plants
✅ water retention directly in the environment