Sofia

Sofia

Cambi will deliver its thermal hydrolysis technology to the Kubratovo wastewater treatment plant in Sofia, Bulgaria. This marks Cambi’s first project in the country, in partnership with the DZZD "SWWTP - Kubratovo" consortium.

The project will bring Sofia:

• Pathogen-free biosolids for land recycling.
• A 50,000-tonne annual reduction in biosolids volume, cutting handling costs by 40%.
• A 30% biogas boost, generating renewable energy for 10,000 households.

The difference is the amount of biogas produced.
Usually, wastewater treatment plants are producing 50 to 60% of their needs.
Here, we cover more than 100% of our needs. We are also saving
CO₂ emissions, approximately 70,000 tonnes per year.

Source: Stanislav Stanev, Technical Director for Veolia Bulgaria, speaks to Euronews

Funded by EU structural funds, the upgrade ensures compliance with stricter environmental standards and future sludge regulations. Commissioning of the THP was completed in 2024.