What physical methods do you use for separating the coagulated oil?

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Paola Bernardo

Another possibility is related to the use of membranes.

see the reviwe by Ismail et al.: Membrane technology enhancement in oil–water separation. A review, Desalination 357:197-207 (2015)

Arvid Hardin

Thanks.

Carlos Araújo Queiroz

In case you find advisable to promote emulsion breaking, you may possibly want to check the following discussion: https://www.researchgate.net/post/what_is_the_best_way_and_economical_procedure_to_extract_toluene_diverts_from_wastewater