Organic Chemical Composition of Olive Oil Mill Wastewater During an Ozonation Pre-Treatment

摘要

Olive oil mill waste water has a complex composition and contains a large number of organic compounds and A high concentration of phenolic compounds. The phenolic compounds are toxic and difficult to be degrade. In this study, the pre-treat-ment of OMW by ozonation is investigated. The ozonation of olive mill wastewater using 60 mg O3L"1 results in a decrease of 75 % of the initial chemical oxygen demand. The selective degradation of the phenolic compounds present in the olive mill wastewater by the ozone can be identified.