refinery-process-water water treatment and purification in china

refinery-process-water water treatment and purification in china
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  • How is wastewater treated in petroleum refining?
  • Petroleum refining enterprises are equipped with wastewater treatment plants to collect and treat the PRW streams. The overall wastewater treatment process can be divided into pretreatment, primary, secondary, and tertiary (Fig. 2).
  • Why do refineries have different types of wastewater treatment?
  • Moreover, owing to the complexity of refining operations, each refinery is of unique design. Therefore, the type of wastewater treatment employed at a particular location, the availability of raw water sources, the discharge configuration, the type of receiving water body, and other practices may well differ (Beychok 1967).
  • What are the results of biological treatment of refinery water?
  • After the biological treatment, the refinery water was subjected to UF membrane which showed 34% TOC removal and the COD removal was in the range of 0–60% depending on the molecular weights of the organics.
  • What are the challenges and perspectives for petroleum refining wastewater treatment?
  • Challenges and perspectives for petroleum refining wastewater treatment were highlighted. The use of tools such as AI on problem solutions is discussed. The continuous increase in petroleum refining wastewater production poses a significant challenge to protecting the water environment.