Minimization of halogenated disinfection by-product precursors by Al-based electrocoagulation–flotation (ECF) toward cyanobacteria-laden water

Abstract The presence of toxic algae, such as Microcystis aeruginosa (MA), in drinking water treatment plants (DWTPs) would contribute to algal organic matter (AOM) precursors toward disinfection by-products (DBPs). Electrocoagulation–flotation (ECF) has shown promising performance minimizing cells from and dissolved AOM. This study aimed investigate the effect current density (CD) pH on alumina (Al)-based ECF for removing MA cell DBPs cyanobacteria-laden water. Al-based was evaluated at various CD conditions within 20 min. In addition, total halogenated formation treated suspension after quantified. At 8, process with 5 mA/cm2 exhibits most significant reductions soluble AOM, accounting 97 56%, respectively. Additionally, trihalomethanes (THMs) haloketones (HKs) can be effectively removed flotation despite their release EC. tremendous reduction humic acid-like (HAL) substances extracellular (EOM) fraction by leads minimized THMs potential. summary, 8 is effective remove cyanobacteria minimize regulated along an insignificant haloacetic acids (HAAs) precursors.