Abstract:
According to United Nations predictions, between two and seven billion people will face
water shortages by the year 2050 (UN, 2007). Recently reported data for 2012, mentioned that
1 out of 6 people worldwide, i.e. about 783 million, do not have access to improved drinking
water sources (UNICEF, 2013). This has become a global issue, and not only a problem relevant
to arid zones. Because this scarcity is a threat to human activity, water reuse strategies
deserve major attention (Fritzmann et al., 2007).
