The Olympic Stadium and additional sports facilities are located within this impressive park, which has large landscaped areas of grass and water. Approximately 75 hectares of water surface area exists within the park and is laid out in the form of a kite.
Due to a water shortage in the 15 million population metropolis, the Olympic lake is fed predominantly by local waste water.
In order to avoid possible hygiene, algae and smell problems, the Chinese-German BMBF research project developed from 2004-2007 an energy-efficient solution for waste water recycling. Different phosphate removers were tested and ROWAphos was found to be the most effective material.
ROWAphos is operated in 2 parallel filter containers treating 2000 m3 of water per day.
After this treatment the water is used for toilet flushing, wells and as well as washing water within the Olympic park.