METU (the Middle East Technical University) is located in Ankara, the capital city of Turkey. It includes a technopark for R&D companies. The maintaining of open green areas in the technopark and the university is an important issue, which is however costly. In order to decrease the irrigation costs and increase water efficiency, a water treatment facility was constructed at the campus. The operation of this system helps to treat wastewater and to reuse it for irrigation. This system saves 150,000 € annually for the technopark.
The project has started as a research project coordinated by METU and TUB (Berlin Technical University). The benefits of the facility have been investigated during the research period and in the meantime it started to be used as a primary water resource for irrigation.