Abstract:

Based on the characteristics of the high-acid heavy crude oil wastewater，a new process of two-stage advanced ozone catalytic oxidation has been put forward to solve the treatment of high-acid heavy oil wastewater.The independently researched and developed catalyst and a testing device designed for treating MBR effluent of a refinery processing wastewater with high-acid heavy crude oils have been used，and the influencing factors have been investigated. The results show that under optimum conditions，the COD of the effluent after being treated by this process and ammonia nitrogen can reach the make-up water standard of the open-type circulating cooling water system in the Municipal Sewage Recycling and Water Quality of Industrial Water （GB/T 19923—2005）. The characterization of the tested catalysts shows no deactivation. The performance of catalyst is steady.

Key words: high-acid heavy crude oil, advanced treatment, two-stage ozone catalytic oxidation

摘要：

针对高酸重质原油废水的特点,提出了两级臭氧深度催化氧化的处理工艺。采用自主研发的催化剂和设计的试验装置对某炼油企业高酸重质原油废水的MBR出水进行了处理,并对影响因素进行了研究。结果表明,在最佳运行条件下,经该工艺处理后的出水COD和氨氮均达到《城市污水再生利用工业用水水质》(GB/T 19923—2005)中的敞开式循环冷却水系统补充水的标准要求。试验结束后,对催化剂进行表征,未现失活现象,表明催化剂性能稳定。

关键词: 高酸重质原油, 深度处理, 两级臭氧催化氧化

CLC Number: 

• TQ085.412