Long-Term Effects of Olive oil Mill wastewater spreading on soil and olive trees

The olive oil extraction process produces huge amounts of liquid waste called olive mill waste water (OMWW). Large amounts of OMWW (30 million m3) are produced in the Mediterranean regions that accounts for 95% of the total olive oil production worldwide. In Tunisia, OMWW constitutes a serious environmental problem due to the features associated with this type of agro-waste and to its diverse organic load which may reach values as high as 100 g/L and is mained with this type of agro-waste and to its diverse organic load which may reach values as high as 100 g/L is mainly due to sugars. lipids, phenols, and tannins. (Author)