Produção Nacional
Effects of water produced by oil segment on aquatic organisms after treatment using advanced oxidative processes
2021; Taylor & Francis; Volume: 84; Issue: 22 Linguagem: Inglês
10.1080/15287394.2021.1951910
ISSN1087-2620
AutoresTaís Suelen Viana, Taisa Carla Rizzi Rialto, Juliana Ferreira de Brito, André Fernando Ditondo Micas, Flávia Renata Abe, Eduardo Angelino Savazzi, María Valnice Boldrin Zanoni, Danielle Palma de Oliveira,
Tópico(s)Toxic Organic Pollutants Impact
ResumoThe water produced (PW) by the petroleum industry is a potential contaminant to aquatic biota, due to its complex mixture that may contain polycyclic aromatic hydrocarbons (PAHs), organic chemical compounds, including benzene, toluene, ethylbenzene and xylene (BTEX), metals and other components that are known to be toxic. The aim of this investigation was to examine the acute toxicity produced by a PW sample in aquatic organisms Vibrio fischeri and Daphnia similis prior to and after 4 treatments using advanced oxidative processes such as photocatalysis, photoelectrocatalysis, ozonation and photoelectrocatalytic ozonation. Data demonstrated that exposure to PW was toxic to both organisms, as evidenced by reduced luminescence in bacterium Vibrio fischeri and induced immobility in Daphnia similis. After treatment of PW with 4 different techniques, the PW remained toxic for both tested organisms. However, photoelectrocatalysis was more efficient in decreasing toxicity attributed to PW sample. Therefore, data demonstrate the importance of treating PW for later disposal in the environment in order to mitigate ecotoxicological impacts. Further photoelectrocatalysis appeared to be a promising tool for treating PW samples prior to disposal and exposure of aquatic ecosystems.
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