UASB/hydrolytic acidification/SBBR process for wastewater treatment of natural gas purification plant

Based on the conventional natural gas purification plant sewage treatment, through the summary of experience and process optimization, this paper proposes the UASB/hydrolytic acidification/SBBR processing technology, and takes a practical application in a natural gas purification plant in Chongqing. According to the water quantity and water quality situation, the specific process method is determined. The main structure design, operation results of the process and economic analysis are discussed in this paper. The results show that all the water quality indexes by the process accord with the primary standard of GB 8978-1996 integrated wastewater discharge standard, the process is feasible and successful, and has a certain inspiration and reference significance for industrial wastewater treatment with similar small flow rate and high load.