European and Armenian Partners Explore Eco-Friendly Wastewater Systems to Protect Lake Sevan

Efforts to curb pollution in Lake Sevan are moving into communities along its shores, where European and Armenian partners are assessing smaller, nature-based wastewater treatment systems as an alternative to costly centralized infrastructure.

Representatives of the European Union, Germany’s UFZ research institute and the EU4Sevan+ project visited the Gavar and Vardenis municipalities in July to identify locations where the systems could be introduced.

The team met with local officials and inspected sites in Lchap, Sarukhan and Lusakunk. The proposed systems would treat wastewater close to where it is produced, using natural processes to remove pollutants before the water can reach nearby ecosystems.

The model is designed with smaller communities in mind. Building conventional sewer networks and large treatment plants can be expensive in rural areas, while decentralized systems require less infrastructure and can be managed locally.

For communities around Lake Sevan, the goal is also broader: prevent untreated wastewater from adding to the environmental pressures facing Armenia’s largest lake and one of the country’s most important freshwater resources.

“Decentralized, eco-friendly systems clean wastewater naturally, directly benefiting local communities and safeguarding regional biodiversity,” the project said.

The field work is part of EU4Sevan+, an initiative focused on improving environmental management and supporting the long-term protection of Lake Sevan and its surrounding ecosystem.

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