Brine wastewater pretreatment using clay minerals and organoclays as flocculants

► Pickles brine wastewaters pretreatment using clays and organoclays was studied. ► Flocculation tests showed a reduction of suspended solids and organic materials. ► A two steps sedimentation test was conducted with clays and organoclays. ► Clays and organoclays were effective flocculants for brine wastewater pretreatment.