Textile industries produce enormous volumes of contaminated
wastewater, which causes serious problems for the natural
ecosystem. In fact, the industrial textile effluent (ITE) contains a
mixture of dye molecules leading to a toxic effect (Khlifi et al., 2010;
Verma et al., 2012). The biological treatment was found to be
effective for its treatment. Furthermore, microbial processes have
the advantage of being cost-effective, environmentally friendly and
producing a less amount of sludge (Li et al., 2015). However, the low
ratio of the biological oxygen demand (BOD) to the chemical oxygen
demand (COD) indicates that the decolourization of the ITE is
difficult by using the conventional biological system (Zylla et al.,
2006). For this reason, the selection of resistant and potential microorganisms
appears to be necessary for its treatment