## A response to **water stress** and **climate change** In a context of increasing water scarcity, Veolia has transformed the La Farfana wastewater treatment plant into an innovative site capable of treating wastewater while valorizing sludge into green energy and organic fertilizers. ## **Environmental** and **Economic** Benefits - Reuse of treated water for agricultural irrigation - Supply of fertilizers to local farmers - "Impulse for Change" recognition at COP24 for its contribution to planetary health ![Visual showing the city of La Farfana, Santiago, on the map of Chile](/sites/g/files/dvc4206/files/image/2025/07/map-la-farfana-chili-604x302.png) 0 fossil fuel consumption Biogas production covering the gas needs of **140,000** inhabitants Wastewater treatment for **8 million** inhabitants of Greater Santiago ![Waste production Pictogram](/sites/g/files/dvc4206/files/styles/default/public/image/2025/07/picto-production-dechets-604.png.webp?itok=QDTJiaoc) ## Key figures ![Background (Codant Veolia)](/sites/g/files/dvc4206/files/styles/crop_freeform/public/image/2025/03/background.png.webp?itok=uD4W93Mt) - ### Discover how Veolia is transforming **environmental challenges into sustainable solutions** [Download the full case study](/en/ecological-transformation-case-studies-full-brochure) ![Pictogramme icon étude de cas case studies](/sites/g/files/dvc4206/files/styles/default/public/image/2025/03/Case%20study%20-%20icon.png.webp?itok=sWYmTNRI) #### Download the full brochure ![Icon pictogramme téléchargement download](/sites/g/files/dvc4206/files/styles/default/public/image/2025/03/Te%CC%81le%CC%81chargement%20libre_0.png.webp?itok=RAVn1d7f) **By downloading the brochure, you will have access to the full case studies, including:** • **Specific technologies** implemented • Exclusive **key figures**... Don't miss this opportunity to learn more about the concrete solutions offered by Veolia to support the ecological transformation of your city! [Download the full brochure](/en/ecological-transformation-case-studies-full-brochure) ![Cover brochure - Achieving the successful ecological transformation of your city together](/sites/g/files/dvc4206/files/styles/default/public/image/2025/07/Cover%20brochure%20-%20Achieving%20the%20successful%20ecological%20transformation%20of%20your%20city%20together.png.webp?itok=jRFypRuj) ![Paysage urbain](/sites/g/files/dvc4206/files/styles/crop_freeform/public/image/2025/03/couverture%20illustration.png.webp?itok=qsGMMYbU) You may also be interested in these case studies [ ![Refinery in Kaohsiung, Taiwan](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/07/taiwan-depolluer-raffinerie-320x245.jpg.webp?itok=D0AjmWWt) ](/en/cities/kaohsiung-taiwan-cleaning-old-refinery-sustainable-industrial-conversion "In Kaohsiung") Taiwan [In Kaohsiung](/en/cities/kaohsiung-taiwan-cleaning-old-refinery-sustainable-industrial-conversion "In Kaohsiung") Cleaning Up an Old Refinery for Sustainable Industrial Conversion [Read more](/en/cities/kaohsiung-taiwan-cleaning-old-refinery-sustainable-industrial-conversion "Read more") [ ![A renewable energy source that provides heating for an eco-district in London](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/07/londres-energie-renouvelable-320x245.jpg.webp?itok=aT7jEIjJ) ](/en/cities/london-heating-eco-district-renewable-energy "In London") United-Kingdom [In London](/en/cities/london-heating-eco-district-renewable-energy "In London") Heating an eco-district with renewable energy [Read more](/en/cities/london-heating-eco-district-renewable-energy "Read more") [ ![Preserving water resources by eliminating micropollutants in Switzerland](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/07/suisse-eliminer-micropolluants-320x245.jpg.webp?itok=FkArb40H) ](/en/cities/switzerland-eliminating-micropollutants-preserve-water-resources "In Switzerland") Switzerland [In Switzerland](/en/cities/switzerland-eliminating-micropollutants-preserve-water-resources "In Switzerland") Eliminating Micropollutants to Preserve Water Resources [Read more](/en/cities/switzerland-eliminating-micropollutants-preserve-water-resources "Read more") [ ![Use green cogeneration to moving away from coal, Braunschweig](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/07/allemagne-cogeneration-verte-320x245.jpg.webp?itok=17cj44-h) ](/en/cities/germany-moving-away-coal-through-green-cogeneration "In Germany") Germany [In Germany](/en/cities/germany-moving-away-coal-through-green-cogeneration "In Germany") Moving away from coal through green cogeneration [Read more](/en/cities/germany-moving-away-coal-through-green-cogeneration "Read more") [ ![National Archaeological Museum in Reggio Calabria, Italy](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/07/italie-musee-arch%C3%A9ologique-national-320x245.jpg.webp?itok=zY-MiYYv) ](/en/cities/reggio-calabria-italy-ensuring-healthy-air-national-archaeological-museum "In Reggio Calabria") Italy [In Reggio Calabria](/en/cities/reggio-calabria-italy-ensuring-healthy-air-national-archaeological-museum "In Reggio Calabria") Ensuring healthy air at the National Archaeological Museum [Read more](/en/cities/reggio-calabria-italy-ensuring-healthy-air-national-archaeological-museum "Read more") [ ![Enhancing the reliability of networks by leveraging electrical flexibility in Europe](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/07/europe-flexibilite-320x245.jpg.webp?itok=9wo7O2Iu) ](/en/cities/europe-valuing-electrical-flexibility-secure-networks "In Europe") Europe [In Europe](/en/cities/europe-valuing-electrical-flexibility-secure-networks "In Europe") Valuing electrical flexibility to secure networks [Read more](/en/cities/europe-valuing-electrical-flexibility-secure-networks "Read more") [ ![Recycling of plastic waste in Indonesia](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/07/recycler-dechets-indonesie-320x245.jpg.webp?itok=odMcXh9A) ](/en/cities/indonesia-transforming-plastic-waste-new-resources "In Indonesia") Indonesia [In Indonesia](/en/cities/indonesia-transforming-plastic-waste-new-resources "In Indonesia") Transforming plastic waste into new resources [Read more](/en/cities/indonesia-transforming-plastic-waste-new-resources "Read more") [ ![Bonneuil en France](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/03/decarbonner-traitement-eaux-usees-bonneuil-france-320x245.jpg.webp?itok=yNqn7n62) ](/en/cities/bonneuil-en-france-turning-wastewater-green-energy "In Bonneuil-en-France") France [In Bonneuil-en-France](/en/cities/bonneuil-en-france-turning-wastewater-green-energy "In Bonneuil-en-France") Decarbonizing wastewater treatment for a greener territory [Read more](/en/cities/bonneuil-en-france-turning-wastewater-green-energy "In Bonneuil-en-France") [ ![Recyclage des déchets à Gold Coast en Autralie](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/03/recyclage-dechets-gold-coast-autralie-320x245.jpg.webp?itok=qHMtpvaE) ](/en/cities/gold-coast-improving-waste-management-more-sustainable-future "In Gold Coast") AUSTRALIA [In Gold Coast](/en/cities/gold-coast-improving-waste-management-more-sustainable-future "In Gold Coast") Increasing waste recovery to strengthen recycling and develop the circular economy [Read more](/en/cities/gold-coast-improving-waste-management-more-sustainable-future "In Gold Coast") [ ![traitement des pfas dans le New Jersey aux Etats-Unis](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/03/traitement-pfas-new-jersey-etats-unis-320x245.jpg.webp?itok=LR3GVP3K) ](/en/cities/new-jersey-securing-drinking-water-tackling-pfas "In New Jersey") UNITED STATES [In New Jersey](/en/cities/new-jersey-securing-drinking-water-tackling-pfas "In New Jersey") Treating PFAS in water for healthier communities [Read more](/en/cities/new-jersey-securing-drinking-water-tackling-pfas "In New Jersey") [ ![Usine de valorisation d'énergie fatale à Az Zour au Koweït](/sites/g/files/dvc4206/files/styles/content_push_teaser/public/image/2025/03/valoriser-energie-fatale-zour-koet-320x245.jpg.webp?itok=ndVXTCE2) ](/en/cities/az-zour-kuwait-preserving-water-through-waste-heat-recovery "In Az Zour") Kuwait [In Az Zour](/en/cities/az-zour-kuwait-preserving-water-through-waste-heat-recovery "In Az Zour") Harnessing waste energy to preserve water resources [Read more](/en/cities/az-zour-kuwait-preserving-water-through-waste-heat-recovery "In Az Zour") Previous Next