5 million people die due to water pollution problems every year. Additionally, about 20% of the world population have less than 20 litres of water per day and the world water consumption quadrupled in the last 50 years. During the next years, water demand will continually increase due to population growth (WBGU, 1999).
2 billion people are currently lacking access to sanitation and water; (WHO, http://www.euro.who.int/eprise/main/WHO/Progs/WSN/Home).
Wastewater reuse can be a good option to improve this world wide situation.
Figure 1: Water use and withdrawals (source: www.unesco.org)
Why thinking of wastewater reuse?
Why thinking of wastewater reuse?