Treated Olive Mill Wastewater Effects on Soil Properties and Olive Plants

Olive mill wastewater (OMW) production is one of the most serious environmental problems, mainly in countries where olive oil production is an important economic activity. Its contamination potential is related to its high organic load (COD between 40 and 210 g/L) and the significant concentrations of phenolic compounds (between 0.5 and 24 g/L) which are toxic and ecologically noxious.