Akademik Veri Yönetim Sistemi
Process Safety and Environmental Protection, cilt.207, 2026 (SCI-Expanded, Scopus)
This study evaluated the detergent removal efficiencies of laundry wastewater from high bed capacity hospitals using air-assisted electrocoagulation (AA-EC) and peroxi-coagulation (PC) methods for the first time. In the AA-EC process, when aerated and non-aerated conditions were compared, the detergent removal efficiency increased from 18 % to 48 % with air assistance at the optimal airflow rate of 1.25 L/min. The AA-EC and PC processes were optimized using a Box–Behnken Design for detergent removal, yielding optimum conditions of pH 7.7, a current density of 14.23 mA/cm2, and 60 min for AA-EC, and pH 3, a current density of 20.40 mA/cm2, and 55.62 min for PC, with corresponding removal efficiencies of 75.63 % and 98.31 %, respectively. The operating costs were calculated as 3.94 $/m3 for the AA-EC process and 8.07 $/m3 for the PC process. Sludge characterization and scavenger analyses were used to identify the detergent removal mechanisms in the AA-EC and PC. In addition, QA/QC validation confirmed MBAS measurements were reliably quantified, with LOD and LOQ of 0.007 and 0.023 mg/L, respectively. This study significantly advances the literature by utilizing real hospital laundry wastewater, developing innovative electrocoagulation strategies, and optimizing the processes, thereby offering more effective and practical alternatives to conventional methods.