Biotreatment of industrial olive washing water by synergetic association of microalgal-bacterial consortia in a photobioreactor

P. Maza-Márquez*, A. González-Martínez, M. V. Martínez-Toledo, M. Fenice, A. Lasserrot, J. González-López

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

17 Citations (Scopus)


This study presents an effective technology for the olive processing industry to remediate olive washing water. A 14.5-L enclosed tubular photobioreactor was inoculated with a stable microalgal-bacterial consortium obtained by screening strains well adapted to olive washing water. The capacity of an enclosed tubular photobioreactor to remove toxic compounds was evaluated under photosynthesis conditions and without any external supply of oxygen. The results showed that the dominant green microalgae Scenedesmus obliquus, Chlorella vulgaris and the cyanobacteria Anabaena sp. and bacteria present in olive washing water (i.e. Pantoea agglomerans and Raoultella terrigena) formed a synergistic association that was resistant to toxic pollutants present in the effluent and during the initial biodegradation process, which resulted in the breakdown of the pollutant. Total phenolic compounds, COD, BOD5, turbidity and colour removals of 90.3 ± 11.4, 80.7 ± 9.7, 97.8 ± 12.7, 82.9 ± 8.4 and 83.3 ± 10.4 %, respectively, were recorded in the photobioreactor at 3 days of hydraulic retention time. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)527-538
Number of pages12
JournalEnvironmental Science and Pollution Research
Issue number1
Early online date12 Oct 2016
Publication statusPublished - 2017
MoE publication typeA1 Journal article-refereed


  • Microalgal-bacterial consortium
  • Non-metric multidimensional scaling (MDS)
  • Olive washing water (OWW)
  • Photobioreactor (PBR)
  • Synergistic relationships


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