Foto de stock de Planta de tratamento de esgotos

Sewage Treatment Plant near a nature reserve close to Copenhagen, Denmark. Environmental conservation and preservation of clean waters resources is high priority and the Scandinavian countries are at the forefront in development of sustainable solutions for waste water treatment to secure a clean earth for future generations. Besides the waste products are recycled for energy production as green biofuel ultimately leading to decreased CO2 emission, global warming and climate change.