ABSTRACT
Modern society is faced with several challenges regarding the disposal and treatment of human excreta. Water and resource limitations in conventional sanitation systems are becoming nowadays of a concern due to urbanization and population growth, negative effects on freshwater and land resources as well as aggravating climate change. In spite of technological development in the field of sanitation, still a high proportion of the generated wastewater is discharged into the environment receiving a poor or even no treatment at all (Sato et al., 2013). Many developed and developing countries bear significant costs for maintaining and upgrading the sanitation infrastructure and treatment facilities (Schertenleib, 2005a; Zimmer and Hofwegen, 2006; Kone, 2010).
