Study on the Effectiveness of the Sequential Batch Reactor on the Reduction of Wastewater Pollution by Wastewater from Fuel Oil Washing
摘要
The ecosystem is severely harmed by industrial pollution discharges from wastewater from cleaning fuel oils, especially the maritime environment that receives these discharges. The effectiveness of biological treatment of fuel oil washing wastewater using a sequential batch reactor (SBR) is assessed in this work on a laboratory scale. The sequential batch reactor experiment for fuel-washing wastewater lasted 25 days, operating continuously in a 24-h cycle (with 30 min of filling, 17 h of aeration, 4 h of anoxia, 2 h of settling, and a final 30 min of emptying). To evaluate how effectively the fuel oil washing wastewater treatment process worked, key pollution indicators including turbidity, total suspended particles, chemical oxygen demand (COD), biological oxygen demand (BOD5), ammonium, and nitrate were measured. The removal efficiency of COD is 81%, BOD5 91%, TSS 72%, ammonium 100%, and nitrate 52%. The treatment of industrial wastewater from fuel oil washing wastewater of SBR-type discharges could be a potential approach to limit pollution because of its simplicity, low environmental impact, low energy consumption, and lack of requirement for highly qualified workers.