Implementation of the effluent limitations based on the best practicable control technology for the petroleum refining industry in Korea

摘要

The effluent limitations of wastewaters discharged from various industrial facilities are based on uniform regulatory criteria in Korea. However, an individual effluent limitation on each effluent discharging industry is widely applicable for regulation of industrial wastewater in the USA and European Union (EU). The main objectives of this study were; (1) to suggest the method and procedure for establishing effluent limitations for the petroleum refining facilities on the basis of treatment technology to implement the most appropriate effluent limitations reflecting wastewater characteristics and the level of treatment technologies and (2) to estimate the effluent limitations based on the Best Practicable Control Technology (BPT) currently available. To decide an individual effluent limitation, Technology-Based Effluent Limitation (TBEL) was derived for the petroleum refining industry based on BPT in this study. It was suggested that effluent limitations were BOD_5 5.0 mg/L, COD_(Mn) 11.0 mg/ L, SS 4.0 mg/L, TN 7.0 mg/L, and TP 0.3 mg/L and BPT for the petroleum refining facilities in Korea was oil separation, coagulation and floatation, activated sludge treatment, and sand filter (or activate carbon filter). In order to implement new effluent limitations and BPT suggested in this study, institutional complements of separate effluent limitations for individual industrial sectors are urgently required in Korea.