Bioremediation and biovalorisation of olive-mill wastes

J. A. Morillo, Blanca Antizar Ladislao, M. Monteoliva-Sanchez, A. Ramos-Cormenzana, N. J. Russell

Research output: Contribution to journalLiterature reviewpeer-review

Abstract

Olive-mill wastes are produced by the industry of olive oil production, which is a very important economic activity, particularly for Spain, Italy and Greece, leading to a large environmental problem of current concern in the Mediterranean basin. There is as yet no accepted treatment method for all the wastes generated during olive oil production, mainly due to technical and economical limitations but also the scattered nature of olive mills across the Mediterranean basin. The production of virgin olive oil is expanding worldwide, which will lead to even larger amounts of olive-mill waste, unless new treatment and valorisation technologies are devised. These are encouraged by the trend of current environmental policies, which favour protocols that include valorisation of the waste. This makes biological treatments of particular interest. Thus, research into different biodegradation options for olive-mill wastes and the development of new bioremediation technologies and/or strategies, as well as the valorisation of microbial biotechnology, are all currently needed. This review, whilst presenting a general overview, focusses critically on the most significant recent advances in the various types of biological treatments, the bioremediation technology most commonly applied and the valorisation options, which together will form the pillar for future developments within this field.

Original languageEnglish
Pages (from-to)25-39
Number of pages15
JournalApplied Microbiology and Biotechnology
Volume82
Issue number1
DOIs
Publication statusPublished - Feb 2009

Keywords

  • Olive-mill wastes
  • Microbial treatments
  • Bioremediation
  • Valorisation
  • SOLID BY-PRODUCT
  • 2-PHASE CENTRIFUGATION SYSTEM
  • AZOTOBACTER-CHROOCOCCUM H23
  • FUNGUS PLEUROTUS-OSTREATUS
  • INITIAL COD CONCENTRATION
  • TRITICUM-DURUM DESF.
  • WHITE-ROT FUNGUS
  • ANAEROBIC-DIGESTION
  • OIL EXTRACTION
  • ETHANOL-PRODUCTION

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