Abstract: This paper introduces the process flow and long-term operation data analysis of Advanced Biological Reactor (ABR) for treating ethylene high salinity wastewater and refinery FCC desulfurization wastewater. The results show that ABR technology is an advanced treatment technology for treating organic wastewater that is hard to degrade with high efficiency and low operation cost; it is especially suitable for the deep treatment of salinity wastewater which is hard to biodegrade; this technology can reduce COD in wastewater from 100mg/L to less than 30mg/L and can also remove some ammonia nitrogen; it has the advantages of few process units, compact process, stable operation, strong impact resistance and low energy consumption.

Key words: advanced biological reactor/ABR, salinity wastewater, application