Abstract

The large consumption of fresh water in petrochemical industry makes wastewater reuse almost mandatory, with UF and RO membrane desalination playing a crucial role. To that aim, frequent and expensive recovery treatments are required, not always sufficient to prevent (ir)reversible fouling of the membranes, as experienced with a major European petrochemical factory. The paper describes the detailed physio-chemical investigation and instrumental analyses carried out to discover the cause(s) of the fouling and the operational measures required to contrast the phenomenon.

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