(735bz) Removal of Organic Matter from Ceramic Wastewater Using Coagulation Process By Iron (III) Chloride

Eliminating hazardous elements from industrial effluents is a challenging task for Egypt's industrial sector, especially when reusing the wastewater for the same industrial uses. One of these industries is the ceramics industry. This study successfully treated organic contaminants from ceramic wastewater using ferric chloride coagulation and flocculation techniques. The raw wastewater contained high levels of Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), Total Suspended Solids (TSS), Total phosphorus (TP), Total nitrogen (TN), oil, grease, and hydrogen sulfide (H₂S). These levels were 8560, 4920, 5100, 2.8, 65.4, 120, and 6.2 mg/L, respectively, and the removal efficiency was 85.6, 82.5, 82.9, 53.6, 58.9, 92.6, and 62.9%. At an initial pH of 9, we found that the most effective treatment approach was to use a dose of ferric chloride 1 g/L for 60 minutes, followed by 300 rpm of agitation for 5 minutes, 30 rpm of floc production for 20 minutes, and 35 minutes of settling time.